./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-18.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_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-18.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 34c00af4b4663198525b0b7086d994deb20901b2017b1e6c2fe4ceb71d985d42 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 01:04:32,294 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 01:04:32,406 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 01:04:32,413 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 01:04:32,413 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 01:04:32,443 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 01:04:32,444 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 01:04:32,445 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 01:04:32,446 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 01:04:32,447 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 01:04:32,448 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 01:04:32,448 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 01:04:32,448 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 01:04:32,449 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 01:04:32,449 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 01:04:32,452 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 01:04:32,452 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 01:04:32,452 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 01:04:32,453 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 01:04:32,453 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 01:04:32,453 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 01:04:32,457 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 01:04:32,458 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 01:04:32,458 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 01:04:32,458 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 01:04:32,459 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 01:04:32,459 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 01:04:32,459 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 01:04:32,459 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 01:04:32,459 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 01:04:32,460 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 01:04:32,460 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 01:04:32,460 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 01:04:32,460 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 01:04:32,461 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 01:04:32,463 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 01:04:32,464 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 01:04:32,464 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 01:04:32,465 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:04:32,465 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 01:04:32,465 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 01:04:32,466 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 01:04:32,466 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 01:04:32,466 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 01:04:32,467 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 01:04:32,467 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 01:04:32,467 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 01:04:32,467 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_5cb00194-93cf-42f8-9c79-ed34fae607ed/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34c00af4b4663198525b0b7086d994deb20901b2017b1e6c2fe4ceb71d985d42 [2024-11-09 01:04:32,793 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 01:04:32,819 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 01:04:32,822 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 01:04:32,824 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 01:04:32,825 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 01:04:32,826 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-18.i Unable to find full path for "g++" [2024-11-09 01:04:34,716 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 01:04:34,973 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 01:04:34,974 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-18.i [2024-11-09 01:04:34,983 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/data/dc41539d8/83f2813b6d394090af4d9d87ebd3f131/FLAG058d3ce86 [2024-11-09 01:04:34,998 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/data/dc41539d8/83f2813b6d394090af4d9d87ebd3f131 [2024-11-09 01:04:35,000 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 01:04:35,002 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 01:04:35,003 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 01:04:35,004 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 01:04:35,009 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 01:04:35,010 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:04:34" (1/1) ... [2024-11-09 01:04:35,011 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54528b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:04:35, skipping insertion in model container [2024-11-09 01:04:35,012 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:04:34" (1/1) ... [2024-11-09 01:04:35,046 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 01:04:35,253 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_5cb00194-93cf-42f8-9c79-ed34fae607ed/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-18.i[916,929] [2024-11-09 01:04:35,327 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:04:35,338 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 01:04:35,351 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_5cb00194-93cf-42f8-9c79-ed34fae607ed/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-18.i[916,929] [2024-11-09 01:04:35,390 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:04:35,415 INFO L204 MainTranslator]: Completed translation [2024-11-09 01:04:35,416 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:04:35 WrapperNode [2024-11-09 01:04:35,416 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 01:04:35,417 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 01:04:35,417 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 01:04:35,417 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 01:04:35,425 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:04:35" (1/1) ... [2024-11-09 01:04:35,443 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:04:35" (1/1) ... [2024-11-09 01:04:35,500 INFO L138 Inliner]: procedures = 29, calls = 143, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 480 [2024-11-09 01:04:35,500 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 01:04:35,501 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 01:04:35,501 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 01:04:35,501 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 01:04:35,511 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:04:35" (1/1) ... [2024-11-09 01:04:35,511 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:04:35" (1/1) ... [2024-11-09 01:04:35,520 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:04:35" (1/1) ... [2024-11-09 01:04:35,520 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:04:35" (1/1) ... [2024-11-09 01:04:35,541 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:04:35" (1/1) ... [2024-11-09 01:04:35,546 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:04:35" (1/1) ... [2024-11-09 01:04:35,549 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:04:35" (1/1) ... [2024-11-09 01:04:35,552 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:04:35" (1/1) ... [2024-11-09 01:04:35,558 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 01:04:35,559 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 01:04:35,559 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 01:04:35,560 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 01:04:35,577 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:04:35" (1/1) ... [2024-11-09 01:04:35,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:04:35,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:04:35,673 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 01:04:35,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 01:04:35,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 01:04:35,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-09 01:04:35,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 01:04:35,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-09 01:04:35,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 01:04:35,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2024-11-09 01:04:35,729 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 01:04:35,729 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 01:04:35,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 01:04:35,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 01:04:35,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 01:04:35,886 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 01:04:35,888 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 01:04:36,592 INFO L? ?]: Removed 145 outVars from TransFormulas that were not future-live. [2024-11-09 01:04:36,592 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 01:04:37,233 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 01:04:37,233 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 01:04:37,234 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:04:37 BoogieIcfgContainer [2024-11-09 01:04:37,234 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 01:04:37,236 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 01:04:37,237 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 01:04:37,240 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 01:04:37,240 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 01:04:34" (1/3) ... [2024-11-09 01:04:37,241 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49d3e48b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:04:37, skipping insertion in model container [2024-11-09 01:04:37,241 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:04:35" (2/3) ... [2024-11-09 01:04:37,241 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49d3e48b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:04:37, skipping insertion in model container [2024-11-09 01:04:37,242 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:04:37" (3/3) ... [2024-11-09 01:04:37,243 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-18.i [2024-11-09 01:04:37,261 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 01:04:37,262 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 01:04:37,321 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 01:04:37,328 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;@fe48e72, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 01:04:37,328 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 01:04:37,333 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 01:04:37,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-09 01:04:37,341 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:04:37,342 INFO L215 NwaCegarLoop]: trace histogram [12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:04:37,342 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:04:37,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:04:37,348 INFO L85 PathProgramCache]: Analyzing trace with hash -657204590, now seen corresponding path program 1 times [2024-11-09 01:04:37,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:04:37,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762955096] [2024-11-09 01:04:37,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:04:37,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:04:38,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:04:38,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1291245980] [2024-11-09 01:04:38,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:04:38,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:04:38,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:04:38,915 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:04:38,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 01:04:40,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 01:04:40,195 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 01:04:41,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 01:04:41,924 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 01:04:41,926 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 01:04:41,928 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 01:04:41,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 01:04:42,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:04:42,134 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 01:04:42,206 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 01:04:42,211 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 01:04:42 BoogieIcfgContainer [2024-11-09 01:04:42,211 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 01:04:42,212 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 01:04:42,212 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 01:04:42,212 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 01:04:42,213 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:04:37" (3/4) ... [2024-11-09 01:04:42,217 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 01:04:42,218 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 01:04:42,220 INFO L158 Benchmark]: Toolchain (without parser) took 7217.39ms. Allocated memory was 148.9MB in the beginning and 182.5MB in the end (delta: 33.6MB). Free memory was 117.5MB in the beginning and 110.5MB in the end (delta: 7.0MB). Peak memory consumption was 40.4MB. Max. memory is 16.1GB. [2024-11-09 01:04:42,220 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 119.5MB. Free memory is still 92.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 01:04:42,221 INFO L158 Benchmark]: CACSL2BoogieTranslator took 412.60ms. Allocated memory is still 148.9MB. Free memory was 117.5MB in the beginning and 101.9MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 01:04:42,221 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.69ms. Allocated memory is still 148.9MB. Free memory was 101.9MB in the beginning and 97.4MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 01:04:42,222 INFO L158 Benchmark]: Boogie Preprocessor took 57.29ms. Allocated memory is still 148.9MB. Free memory was 97.4MB in the beginning and 93.5MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 01:04:42,223 INFO L158 Benchmark]: RCFGBuilder took 1674.97ms. Allocated memory was 148.9MB in the beginning and 182.5MB in the end (delta: 33.6MB). Free memory was 93.5MB in the beginning and 99.3MB in the end (delta: -5.8MB). Peak memory consumption was 62.1MB. Max. memory is 16.1GB. [2024-11-09 01:04:42,223 INFO L158 Benchmark]: TraceAbstraction took 4975.00ms. Allocated memory is still 182.5MB. Free memory was 98.2MB in the beginning and 110.5MB in the end (delta: -12.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 01:04:42,224 INFO L158 Benchmark]: Witness Printer took 6.62ms. Allocated memory is still 182.5MB. Free memory is still 110.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 01:04:42,226 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 119.5MB. Free memory is still 92.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 412.60ms. Allocated memory is still 148.9MB. Free memory was 117.5MB in the beginning and 101.9MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.69ms. Allocated memory is still 148.9MB. Free memory was 101.9MB in the beginning and 97.4MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.29ms. Allocated memory is still 148.9MB. Free memory was 97.4MB in the beginning and 93.5MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1674.97ms. Allocated memory was 148.9MB in the beginning and 182.5MB in the end (delta: 33.6MB). Free memory was 93.5MB in the beginning and 99.3MB in the end (delta: -5.8MB). Peak memory consumption was 62.1MB. Max. memory is 16.1GB. * TraceAbstraction took 4975.00ms. Allocated memory is still 182.5MB. Free memory was 98.2MB in the beginning and 110.5MB in the end (delta: -12.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.62ms. Allocated memory is still 182.5MB. Free memory is still 110.5MB. 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 52, overapproximation of bitwiseOr at line 59, overapproximation of bitwiseAnd at line 51. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[1] = { 0 }; [L25-L27] float float_Array_0[3] = { 5.8, 0.5, 99.25 }; [L28-L30] signed short int signed_short_int_Array_0[2] = { 5, 18477 }; [L31-L33] unsigned char unsigned_char_Array_0[3] = { 50, 1, 16 }; [L34-L36] unsigned long int unsigned_long_int_Array_0[1] = { 256 }; [L37] unsigned char last_1_unsigned_char_Array_0_2_ = 16; [L38] unsigned long int last_1_unsigned_long_int_Array_0_0_ = 256; [L98] isInitial = 1 [L99] FCALL initially() [L100] COND TRUE 1 [L101] CALL updateLastVariables() [L90] EXPR unsigned_char_Array_0[2] [L90] last_1_unsigned_char_Array_0_2_ = unsigned_char_Array_0[2] [L91] EXPR unsigned_long_int_Array_0[0] [L91] last_1_unsigned_long_int_Array_0_0_ = unsigned_long_int_Array_0[0] [L101] RET updateLastVariables() [L102] CALL updateVariables() [L69] BOOL_unsigned_char_Array_0[0] = __VERIFIER_nondet_uchar() [L70] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L70] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L71] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L71] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L72] float_Array_0[0] = __VERIFIER_nondet_float() [L73] EXPR float_Array_0[0] [L73] EXPR float_Array_0[0] >= -922337.2036854765600e+13F && float_Array_0[0] <= -1.0e-20F [L73] EXPR float_Array_0[0] [L73] EXPR float_Array_0[0] >= -922337.2036854765600e+13F && float_Array_0[0] <= -1.0e-20F [L73] EXPR (float_Array_0[0] >= -922337.2036854765600e+13F && float_Array_0[0] <= -1.0e-20F) || (float_Array_0[0] <= 9223372.036854765600e+12F && float_Array_0[0] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L73] CALL assume_abort_if_not((float_Array_0[0] >= -922337.2036854765600e+13F && float_Array_0[0] <= -1.0e-20F) || (float_Array_0[0] <= 9223372.036854765600e+12F && float_Array_0[0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not((float_Array_0[0] >= -922337.2036854765600e+13F && float_Array_0[0] <= -1.0e-20F) || (float_Array_0[0] <= 9223372.036854765600e+12F && float_Array_0[0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L74] float_Array_0[1] = __VERIFIER_nondet_float() [L75] EXPR float_Array_0[1] [L75] EXPR float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F [L75] EXPR float_Array_0[1] [L75] EXPR float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F [L75] EXPR (float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F) || (float_Array_0[1] <= 9223372.036854765600e+12F && float_Array_0[1] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L75] CALL assume_abort_if_not((float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F) || (float_Array_0[1] <= 9223372.036854765600e+12F && float_Array_0[1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not((float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F) || (float_Array_0[1] <= 9223372.036854765600e+12F && float_Array_0[1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L76] signed_short_int_Array_0[0] = __VERIFIER_nondet_short() [L77] EXPR signed_short_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L77] CALL assume_abort_if_not(signed_short_int_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(signed_short_int_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L78] EXPR signed_short_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L78] CALL assume_abort_if_not(signed_short_int_Array_0[0] <= 16383) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(signed_short_int_Array_0[0] <= 16383) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L79] signed_short_int_Array_0[1] = __VERIFIER_nondet_short() [L80] EXPR signed_short_int_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L80] CALL assume_abort_if_not(signed_short_int_Array_0[1] >= 16383) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(signed_short_int_Array_0[1] >= 16383) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L81] EXPR signed_short_int_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L81] CALL assume_abort_if_not(signed_short_int_Array_0[1] <= 32767) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(signed_short_int_Array_0[1] <= 32767) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L82] unsigned_char_Array_0[0] = __VERIFIER_nondet_uchar() [L83] EXPR unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L83] CALL assume_abort_if_not(unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L84] EXPR unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L84] CALL assume_abort_if_not(unsigned_char_Array_0[0] <= 254) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(unsigned_char_Array_0[0] <= 254) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L85] unsigned_char_Array_0[1] = __VERIFIER_nondet_uchar() [L86] EXPR unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L86] CALL assume_abort_if_not(unsigned_char_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(unsigned_char_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L87] EXPR unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L87] CALL assume_abort_if_not(unsigned_char_Array_0[1] <= 254) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(unsigned_char_Array_0[1] <= 254) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L102] RET updateVariables() [L103] CALL step() [L42] EXPR signed_short_int_Array_0[0] [L42] signed short int stepLocal_3 = signed_short_int_Array_0[0]; [L43] unsigned long int stepLocal_2 = last_1_unsigned_long_int_Array_0_0_; [L44] COND FALSE !(last_1_unsigned_long_int_Array_0_0_ > stepLocal_3) [L51] EXPR unsigned_char_Array_0[2] [L51] EXPR signed_short_int_Array_0[1] [L51] EXPR unsigned_char_Array_0[2] & signed_short_int_Array_0[1] [L51] EXPR unsigned_char_Array_0[0] [L51] EXPR unsigned_char_Array_0[2] [L51] EXPR unsigned_char_Array_0[2] [L51] COND TRUE (unsigned_char_Array_0[2] & signed_short_int_Array_0[1]) > ((unsigned_char_Array_0[0] * last_1_unsigned_long_int_Array_0_0_) * (unsigned_char_Array_0[2] + unsigned_char_Array_0[2])) [L52] EXPR BOOL_unsigned_char_Array_0[0] [L52] BOOL_unsigned_char_Array_0[0] && (float_Array_0[0] > float_Array_0[1]) [L52] COND FALSE !(BOOL_unsigned_char_Array_0[0] && (float_Array_0[0] > float_Array_0[1])) [L58] EXPR unsigned_char_Array_0[2] [L58] unsigned char stepLocal_1 = unsigned_char_Array_0[2]; [L59] EXPR unsigned_char_Array_0[2] [L59] EXPR unsigned_char_Array_0[2] [L59] EXPR unsigned_long_int_Array_0[0] [L59] EXPR ((unsigned_char_Array_0[2]) > (unsigned_long_int_Array_0[0])) ? (unsigned_char_Array_0[2]) : (unsigned_long_int_Array_0[0]) [L59] EXPR unsigned_long_int_Array_0[0] [L59] EXPR ((unsigned_char_Array_0[2]) > (unsigned_long_int_Array_0[0])) ? (unsigned_char_Array_0[2]) : (unsigned_long_int_Array_0[0]) [L59] EXPR unsigned_char_Array_0[2] ^ ((((unsigned_char_Array_0[2]) > (unsigned_long_int_Array_0[0])) ? (unsigned_char_Array_0[2]) : (unsigned_long_int_Array_0[0]))) [L59] unsigned long int stepLocal_0 = unsigned_char_Array_0[2] ^ ((((unsigned_char_Array_0[2]) > (unsigned_long_int_Array_0[0])) ? (unsigned_char_Array_0[2]) : (unsigned_long_int_Array_0[0]))); [L60] EXPR unsigned_char_Array_0[2] [L60] COND TRUE stepLocal_0 != unsigned_char_Array_0[2] [L61] EXPR unsigned_char_Array_0[2] [L61] EXPR signed_short_int_Array_0[1] [L61] EXPR unsigned_char_Array_0[2] [L61] COND FALSE !(stepLocal_1 == (unsigned_char_Array_0[2] - (signed_short_int_Array_0[1] - unsigned_char_Array_0[2]))) [L103] RET step() [L104] CALL, EXPR property() [L94] EXPR unsigned_char_Array_0[2] [L94] EXPR unsigned_char_Array_0[2] [L94] EXPR unsigned_long_int_Array_0[0] [L94] EXPR ((unsigned_char_Array_0[2]) > (unsigned_long_int_Array_0[0])) ? (unsigned_char_Array_0[2]) : (unsigned_long_int_Array_0[0]) [L94] EXPR unsigned_long_int_Array_0[0] [L94] EXPR ((unsigned_char_Array_0[2]) > (unsigned_long_int_Array_0[0])) ? (unsigned_char_Array_0[2]) : (unsigned_long_int_Array_0[0]) [L94] EXPR unsigned_char_Array_0[2] ^ ((((unsigned_char_Array_0[2]) > (unsigned_long_int_Array_0[0])) ? (unsigned_char_Array_0[2]) : (unsigned_long_int_Array_0[0]))) [L94] EXPR unsigned_char_Array_0[2] [L94] EXPR ((unsigned_char_Array_0[2] ^ ((((unsigned_char_Array_0[2]) > (unsigned_long_int_Array_0[0])) ? (unsigned_char_Array_0[2]) : (unsigned_long_int_Array_0[0])))) != unsigned_char_Array_0[2]) ? ((unsigned_char_Array_0[2] == (unsigned_char_Array_0[2] - (signed_short_int_Array_0[1] - unsigned_char_Array_0[2]))) ? (float_Array_0[2] == ((float) ((((float_Array_0[0]) < (float_Array_0[1])) ? (float_Array_0[0]) : (float_Array_0[1]))))) : 1) : (float_Array_0[2] == ((float) 10.5f)) [L94] EXPR unsigned_char_Array_0[2] [L94] EXPR unsigned_char_Array_0[2] [L94] EXPR signed_short_int_Array_0[1] [L94] EXPR unsigned_char_Array_0[2] [L94] EXPR (unsigned_char_Array_0[2] == (unsigned_char_Array_0[2] - (signed_short_int_Array_0[1] - unsigned_char_Array_0[2]))) ? (float_Array_0[2] == ((float) ((((float_Array_0[0]) < (float_Array_0[1])) ? (float_Array_0[0]) : (float_Array_0[1]))))) : 1 [L94] EXPR ((unsigned_char_Array_0[2] ^ ((((unsigned_char_Array_0[2]) > (unsigned_long_int_Array_0[0])) ? (unsigned_char_Array_0[2]) : (unsigned_long_int_Array_0[0])))) != unsigned_char_Array_0[2]) ? ((unsigned_char_Array_0[2] == (unsigned_char_Array_0[2] - (signed_short_int_Array_0[1] - unsigned_char_Array_0[2]))) ? (float_Array_0[2] == ((float) ((((float_Array_0[0]) < (float_Array_0[1])) ? (float_Array_0[0]) : (float_Array_0[1]))))) : 1) : (float_Array_0[2] == ((float) 10.5f)) [L94] EXPR (((unsigned_char_Array_0[2] ^ ((((unsigned_char_Array_0[2]) > (unsigned_long_int_Array_0[0])) ? (unsigned_char_Array_0[2]) : (unsigned_long_int_Array_0[0])))) != unsigned_char_Array_0[2]) ? ((unsigned_char_Array_0[2] == (unsigned_char_Array_0[2] - (signed_short_int_Array_0[1] - unsigned_char_Array_0[2]))) ? (float_Array_0[2] == ((float) ((((float_Array_0[0]) < (float_Array_0[1])) ? (float_Array_0[0]) : (float_Array_0[1]))))) : 1) : (float_Array_0[2] == ((float) 10.5f))) && ((last_1_unsigned_long_int_Array_0_0_ > signed_short_int_Array_0[0]) ? ((((last_1_unsigned_char_Array_0_2_ - signed_short_int_Array_0[0]) + signed_short_int_Array_0[1]) > last_1_unsigned_long_int_Array_0_0_) ? (unsigned_char_Array_0[2] == ((unsigned char) ((((unsigned_char_Array_0[0]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[0]) : (unsigned_char_Array_0[1]))))) : (unsigned_char_Array_0[2] == ((unsigned char) unsigned_char_Array_0[0]))) : 1) [L94] EXPR signed_short_int_Array_0[0] [L94] EXPR (last_1_unsigned_long_int_Array_0_0_ > signed_short_int_Array_0[0]) ? ((((last_1_unsigned_char_Array_0_2_ - signed_short_int_Array_0[0]) + signed_short_int_Array_0[1]) > last_1_unsigned_long_int_Array_0_0_) ? (unsigned_char_Array_0[2] == ((unsigned char) ((((unsigned_char_Array_0[0]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[0]) : (unsigned_char_Array_0[1]))))) : (unsigned_char_Array_0[2] == ((unsigned char) unsigned_char_Array_0[0]))) : 1 [L94] EXPR (((unsigned_char_Array_0[2] ^ ((((unsigned_char_Array_0[2]) > (unsigned_long_int_Array_0[0])) ? (unsigned_char_Array_0[2]) : (unsigned_long_int_Array_0[0])))) != unsigned_char_Array_0[2]) ? ((unsigned_char_Array_0[2] == (unsigned_char_Array_0[2] - (signed_short_int_Array_0[1] - unsigned_char_Array_0[2]))) ? (float_Array_0[2] == ((float) ((((float_Array_0[0]) < (float_Array_0[1])) ? (float_Array_0[0]) : (float_Array_0[1]))))) : 1) : (float_Array_0[2] == ((float) 10.5f))) && ((last_1_unsigned_long_int_Array_0_0_ > signed_short_int_Array_0[0]) ? ((((last_1_unsigned_char_Array_0_2_ - signed_short_int_Array_0[0]) + signed_short_int_Array_0[1]) > last_1_unsigned_long_int_Array_0_0_) ? (unsigned_char_Array_0[2] == ((unsigned char) ((((unsigned_char_Array_0[0]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[0]) : (unsigned_char_Array_0[1]))))) : (unsigned_char_Array_0[2] == ((unsigned char) unsigned_char_Array_0[0]))) : 1) [L94] EXPR ((((unsigned_char_Array_0[2] ^ ((((unsigned_char_Array_0[2]) > (unsigned_long_int_Array_0[0])) ? (unsigned_char_Array_0[2]) : (unsigned_long_int_Array_0[0])))) != unsigned_char_Array_0[2]) ? ((unsigned_char_Array_0[2] == (unsigned_char_Array_0[2] - (signed_short_int_Array_0[1] - unsigned_char_Array_0[2]))) ? (float_Array_0[2] == ((float) ((((float_Array_0[0]) < (float_Array_0[1])) ? (float_Array_0[0]) : (float_Array_0[1]))))) : 1) : (float_Array_0[2] == ((float) 10.5f))) && ((last_1_unsigned_long_int_Array_0_0_ > signed_short_int_Array_0[0]) ? ((((last_1_unsigned_char_Array_0_2_ - signed_short_int_Array_0[0]) + signed_short_int_Array_0[1]) > last_1_unsigned_long_int_Array_0_0_) ? (unsigned_char_Array_0[2] == ((unsigned char) ((((unsigned_char_Array_0[0]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[0]) : (unsigned_char_Array_0[1]))))) : (unsigned_char_Array_0[2] == ((unsigned char) unsigned_char_Array_0[0]))) : 1)) && (((unsigned_char_Array_0[2] & signed_short_int_Array_0[1]) > ((unsigned_char_Array_0[0] * last_1_unsigned_long_int_Array_0_0_) * (unsigned_char_Array_0[2] + unsigned_char_Array_0[2]))) ? ((BOOL_unsigned_char_Array_0[0] && (float_Array_0[0] > float_Array_0[1])) ? (unsigned_long_int_Array_0[0] == ((unsigned long int) signed_short_int_Array_0[1])) : 1) : (unsigned_long_int_Array_0[0] == ((unsigned long int) signed_short_int_Array_0[1]))) [L94] EXPR unsigned_char_Array_0[2] [L94] EXPR signed_short_int_Array_0[1] [L94] EXPR unsigned_char_Array_0[2] & signed_short_int_Array_0[1] [L94] EXPR unsigned_char_Array_0[0] [L94] EXPR unsigned_char_Array_0[2] [L94] EXPR unsigned_char_Array_0[2] [L94] EXPR ((unsigned_char_Array_0[2] & signed_short_int_Array_0[1]) > ((unsigned_char_Array_0[0] * last_1_unsigned_long_int_Array_0_0_) * (unsigned_char_Array_0[2] + unsigned_char_Array_0[2]))) ? ((BOOL_unsigned_char_Array_0[0] && (float_Array_0[0] > float_Array_0[1])) ? (unsigned_long_int_Array_0[0] == ((unsigned long int) signed_short_int_Array_0[1])) : 1) : (unsigned_long_int_Array_0[0] == ((unsigned long int) signed_short_int_Array_0[1])) [L94] EXPR unsigned_long_int_Array_0[0] [L94] EXPR signed_short_int_Array_0[1] [L94] EXPR ((unsigned_char_Array_0[2] & signed_short_int_Array_0[1]) > ((unsigned_char_Array_0[0] * last_1_unsigned_long_int_Array_0_0_) * (unsigned_char_Array_0[2] + unsigned_char_Array_0[2]))) ? ((BOOL_unsigned_char_Array_0[0] && (float_Array_0[0] > float_Array_0[1])) ? (unsigned_long_int_Array_0[0] == ((unsigned long int) signed_short_int_Array_0[1])) : 1) : (unsigned_long_int_Array_0[0] == ((unsigned long int) signed_short_int_Array_0[1])) [L94] EXPR ((((unsigned_char_Array_0[2] ^ ((((unsigned_char_Array_0[2]) > (unsigned_long_int_Array_0[0])) ? (unsigned_char_Array_0[2]) : (unsigned_long_int_Array_0[0])))) != unsigned_char_Array_0[2]) ? ((unsigned_char_Array_0[2] == (unsigned_char_Array_0[2] - (signed_short_int_Array_0[1] - unsigned_char_Array_0[2]))) ? (float_Array_0[2] == ((float) ((((float_Array_0[0]) < (float_Array_0[1])) ? (float_Array_0[0]) : (float_Array_0[1]))))) : 1) : (float_Array_0[2] == ((float) 10.5f))) && ((last_1_unsigned_long_int_Array_0_0_ > signed_short_int_Array_0[0]) ? ((((last_1_unsigned_char_Array_0_2_ - signed_short_int_Array_0[0]) + signed_short_int_Array_0[1]) > last_1_unsigned_long_int_Array_0_0_) ? (unsigned_char_Array_0[2] == ((unsigned char) ((((unsigned_char_Array_0[0]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[0]) : (unsigned_char_Array_0[1]))))) : (unsigned_char_Array_0[2] == ((unsigned char) unsigned_char_Array_0[0]))) : 1)) && (((unsigned_char_Array_0[2] & signed_short_int_Array_0[1]) > ((unsigned_char_Array_0[0] * last_1_unsigned_long_int_Array_0_0_) * (unsigned_char_Array_0[2] + unsigned_char_Array_0[2]))) ? ((BOOL_unsigned_char_Array_0[0] && (float_Array_0[0] > float_Array_0[1])) ? (unsigned_long_int_Array_0[0] == ((unsigned long int) signed_short_int_Array_0[1])) : 1) : (unsigned_long_int_Array_0[0] == ((unsigned long int) signed_short_int_Array_0[1]))) [L94-L95] return ((((unsigned_char_Array_0[2] ^ ((((unsigned_char_Array_0[2]) > (unsigned_long_int_Array_0[0])) ? (unsigned_char_Array_0[2]) : (unsigned_long_int_Array_0[0])))) != unsigned_char_Array_0[2]) ? ((unsigned_char_Array_0[2] == (unsigned_char_Array_0[2] - (signed_short_int_Array_0[1] - unsigned_char_Array_0[2]))) ? (float_Array_0[2] == ((float) ((((float_Array_0[0]) < (float_Array_0[1])) ? (float_Array_0[0]) : (float_Array_0[1]))))) : 1) : (float_Array_0[2] == ((float) 10.5f))) && ((last_1_unsigned_long_int_Array_0_0_ > signed_short_int_Array_0[0]) ? ((((last_1_unsigned_char_Array_0_2_ - signed_short_int_Array_0[0]) + signed_short_int_Array_0[1]) > last_1_unsigned_long_int_Array_0_0_) ? (unsigned_char_Array_0[2] == ((unsigned char) ((((unsigned_char_Array_0[0]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[0]) : (unsigned_char_Array_0[1]))))) : (unsigned_char_Array_0[2] == ((unsigned char) unsigned_char_Array_0[0]))) : 1)) && (((unsigned_char_Array_0[2] & signed_short_int_Array_0[1]) > ((unsigned_char_Array_0[0] * last_1_unsigned_long_int_Array_0_0_) * (unsigned_char_Array_0[2] + unsigned_char_Array_0[2]))) ? ((BOOL_unsigned_char_Array_0[0] && (float_Array_0[0] > float_Array_0[1])) ? (unsigned_long_int_Array_0[0] == ((unsigned long int) signed_short_int_Array_0[1])) : 1) : (unsigned_long_int_Array_0[0] == ((unsigned long int) signed_short_int_Array_0[1]))) ; [L104] RET, EXPR property() [L104] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L19] reach_error() VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.8s, OverallIterations: 1, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 104 NumberOfCodeBlocks, 104 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 01:04:42,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-18.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 34c00af4b4663198525b0b7086d994deb20901b2017b1e6c2fe4ceb71d985d42 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 01:04:44,599 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 01:04:44,702 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-09 01:04:44,708 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 01:04:44,709 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 01:04:44,748 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 01:04:44,749 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 01:04:44,749 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 01:04:44,750 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 01:04:44,754 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 01:04:44,755 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 01:04:44,755 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 01:04:44,755 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 01:04:44,755 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 01:04:44,756 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 01:04:44,756 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 01:04:44,756 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 01:04:44,757 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 01:04:44,757 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 01:04:44,757 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 01:04:44,758 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 01:04:44,760 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 01:04:44,760 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 01:04:44,760 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 01:04:44,760 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 01:04:44,761 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 01:04:44,761 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 01:04:44,761 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 01:04:44,761 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 01:04:44,762 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 01:04:44,762 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 01:04:44,762 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 01:04:44,762 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 01:04:44,763 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 01:04:44,763 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 01:04:44,764 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:04:44,764 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 01:04:44,764 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 01:04:44,765 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 01:04:44,765 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 01:04:44,765 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 01:04:44,766 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 01:04:44,766 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 01:04:44,766 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_5cb00194-93cf-42f8-9c79-ed34fae607ed/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34c00af4b4663198525b0b7086d994deb20901b2017b1e6c2fe4ceb71d985d42 [2024-11-09 01:04:45,115 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 01:04:45,145 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 01:04:45,148 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 01:04:45,149 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 01:04:45,150 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 01:04:45,151 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-18.i Unable to find full path for "g++" [2024-11-09 01:04:47,218 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 01:04:47,465 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 01:04:47,465 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-18.i [2024-11-09 01:04:47,473 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/data/331931927/0719d39b6c934e1d9c0b49d37ae81ab9/FLAGf7fcc8ac7 [2024-11-09 01:04:47,486 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/data/331931927/0719d39b6c934e1d9c0b49d37ae81ab9 [2024-11-09 01:04:47,488 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 01:04:47,489 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 01:04:47,491 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 01:04:47,491 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 01:04:47,496 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 01:04:47,497 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:04:47" (1/1) ... [2024-11-09 01:04:47,498 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32fd2c2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:04:47, skipping insertion in model container [2024-11-09 01:04:47,498 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:04:47" (1/1) ... [2024-11-09 01:04:47,527 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 01:04:47,718 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_5cb00194-93cf-42f8-9c79-ed34fae607ed/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-18.i[916,929] [2024-11-09 01:04:47,783 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:04:47,799 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 01:04:47,813 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_5cb00194-93cf-42f8-9c79-ed34fae607ed/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-18.i[916,929] [2024-11-09 01:04:47,864 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:04:47,893 INFO L204 MainTranslator]: Completed translation [2024-11-09 01:04:47,893 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:04:47 WrapperNode [2024-11-09 01:04:47,894 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 01:04:47,895 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 01:04:47,895 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 01:04:47,895 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 01:04:47,903 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:04:47" (1/1) ... [2024-11-09 01:04:47,918 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:04:47" (1/1) ... [2024-11-09 01:04:47,973 INFO L138 Inliner]: procedures = 36, calls = 143, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 439 [2024-11-09 01:04:47,974 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 01:04:47,977 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 01:04:47,978 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 01:04:47,978 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 01:04:47,988 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:04:47" (1/1) ... [2024-11-09 01:04:47,989 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:04:47" (1/1) ... [2024-11-09 01:04:48,005 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:04:47" (1/1) ... [2024-11-09 01:04:48,005 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:04:47" (1/1) ... [2024-11-09 01:04:48,056 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:04:47" (1/1) ... [2024-11-09 01:04:48,065 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:04:47" (1/1) ... [2024-11-09 01:04:48,071 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:04:47" (1/1) ... [2024-11-09 01:04:48,077 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:04:47" (1/1) ... [2024-11-09 01:04:48,086 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 01:04:48,105 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 01:04:48,105 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 01:04:48,105 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 01:04:48,106 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:04:47" (1/1) ... [2024-11-09 01:04:48,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:04:48,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:04:48,148 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 01:04:48,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 01:04:48,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 01:04:48,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-11-09 01:04:48,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2024-11-09 01:04:48,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 01:04:48,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2024-11-09 01:04:48,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2024-11-09 01:04:48,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-09 01:04:48,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2024-11-09 01:04:48,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2024-11-09 01:04:48,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2024-11-09 01:04:48,179 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 01:04:48,179 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 01:04:48,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 01:04:48,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 01:04:48,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-11-09 01:04:48,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2024-11-09 01:04:48,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-09 01:04:48,304 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 01:04:48,307 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 01:04:49,262 INFO L? ?]: Removed 124 outVars from TransFormulas that were not future-live. [2024-11-09 01:04:49,262 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 01:04:49,278 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 01:04:49,279 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 01:04:49,279 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:04:49 BoogieIcfgContainer [2024-11-09 01:04:49,279 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 01:04:49,282 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 01:04:49,283 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 01:04:49,287 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 01:04:49,287 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 01:04:47" (1/3) ... [2024-11-09 01:04:49,288 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61042f34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:04:49, skipping insertion in model container [2024-11-09 01:04:49,288 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:04:47" (2/3) ... [2024-11-09 01:04:49,289 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61042f34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:04:49, skipping insertion in model container [2024-11-09 01:04:49,289 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:04:49" (3/3) ... [2024-11-09 01:04:49,291 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-18.i [2024-11-09 01:04:49,311 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 01:04:49,311 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 01:04:49,383 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 01:04:49,390 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;@22877f55, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 01:04:49,390 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 01:04:49,394 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 77 states have (on average 1.4285714285714286) internal successors, (110), 78 states have internal predecessors, (110), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 01:04:49,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-09 01:04:49,405 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:04:49,406 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:04:49,407 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:04:49,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:04:49,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1123652284, now seen corresponding path program 1 times [2024-11-09 01:04:49,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:04:49,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1159407095] [2024-11-09 01:04:49,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:04:49,428 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 01:04:49,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:04:49,430 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:04:49,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:04:49,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:04:49,746 INFO L255 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 01:04:49,755 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:04:49,794 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-11-09 01:04:49,796 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:04:49,797 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:04:49,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1159407095] [2024-11-09 01:04:49,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1159407095] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:04:49,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:04:49,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 01:04:49,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473421413] [2024-11-09 01:04:49,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:04:49,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 01:04:49,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:04:49,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 01:04:49,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 01:04:49,836 INFO L87 Difference]: Start difference. First operand has 92 states, 77 states have (on average 1.4285714285714286) internal successors, (110), 78 states have internal predecessors, (110), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 01:04:49,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:04:49,872 INFO L93 Difference]: Finished difference Result 177 states and 274 transitions. [2024-11-09 01:04:49,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 01:04:49,875 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 103 [2024-11-09 01:04:49,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:04:49,884 INFO L225 Difference]: With dead ends: 177 [2024-11-09 01:04:49,884 INFO L226 Difference]: Without dead ends: 88 [2024-11-09 01:04:49,890 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 102 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 01:04:49,896 INFO L432 NwaCegarLoop]: 127 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, 127 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 01:04:49,898 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 01:04:49,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-11-09 01:04:49,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2024-11-09 01:04:49,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 74 states have (on average 1.3918918918918919) internal successors, (103), 74 states have internal predecessors, (103), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 01:04:49,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 127 transitions. [2024-11-09 01:04:49,960 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 127 transitions. Word has length 103 [2024-11-09 01:04:49,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:04:49,961 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 127 transitions. [2024-11-09 01:04:49,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 01:04:49,961 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 127 transitions. [2024-11-09 01:04:49,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-09 01:04:49,964 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:04:49,964 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:04:49,971 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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)] Forceful destruction successful, exit code 0 [2024-11-09 01:04:50,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:04:50,166 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:04:50,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:04:50,167 INFO L85 PathProgramCache]: Analyzing trace with hash 743178480, now seen corresponding path program 1 times [2024-11-09 01:04:50,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:04:50,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [375102996] [2024-11-09 01:04:50,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:04:50,170 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 01:04:50,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:04:50,174 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:04:50,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:04:50,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:04:50,476 INFO L255 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 01:04:50,487 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:04:50,593 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-09 01:04:50,659 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 98 treesize of output 44 [2024-11-09 01:04:50,710 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 01:04:50,710 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:04:50,710 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:04:50,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [375102996] [2024-11-09 01:04:50,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [375102996] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:04:50,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:04:50,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 01:04:50,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308059169] [2024-11-09 01:04:50,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:04:50,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 01:04:50,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:04:50,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 01:04:50,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 01:04:50,715 INFO L87 Difference]: Start difference. First operand 88 states and 127 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 01:04:51,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:04:51,845 INFO L93 Difference]: Finished difference Result 206 states and 297 transitions. [2024-11-09 01:04:51,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 01:04:51,848 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 103 [2024-11-09 01:04:51,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:04:51,851 INFO L225 Difference]: With dead ends: 206 [2024-11-09 01:04:51,851 INFO L226 Difference]: Without dead ends: 121 [2024-11-09 01:04:51,852 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-09 01:04:51,854 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 41 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 01:04:51,854 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 423 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 01:04:51,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-11-09 01:04:51,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 94. [2024-11-09 01:04:51,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 80 states have (on average 1.3875) internal successors, (111), 80 states have internal predecessors, (111), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 01:04:51,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 135 transitions. [2024-11-09 01:04:51,871 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 135 transitions. Word has length 103 [2024-11-09 01:04:51,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:04:51,873 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 135 transitions. [2024-11-09 01:04:51,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 01:04:51,874 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 135 transitions. [2024-11-09 01:04:51,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-09 01:04:51,877 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:04:51,877 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:04:51,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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)] Forceful destruction successful, exit code 0 [2024-11-09 01:04:52,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:04:52,078 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:04:52,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:04:52,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1567564082, now seen corresponding path program 1 times [2024-11-09 01:04:52,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:04:52,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1323181552] [2024-11-09 01:04:52,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:04:52,085 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:04:52,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:04:52,091 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:04:52,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:04:52,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:04:52,512 INFO L255 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 01:04:52,520 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:04:52,833 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 62 treesize of output 26 [2024-11-09 01:04:52,920 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 01:04:52,921 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:04:52,921 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:04:52,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1323181552] [2024-11-09 01:04:52,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1323181552] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:04:52,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:04:52,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 01:04:52,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070604740] [2024-11-09 01:04:52,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:04:52,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 01:04:52,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:04:52,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 01:04:52,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-09 01:04:52,925 INFO L87 Difference]: Start difference. First operand 94 states and 135 transitions. Second operand has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 01:04:55,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:04:55,141 INFO L93 Difference]: Finished difference Result 223 states and 321 transitions. [2024-11-09 01:04:55,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 01:04:55,143 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 104 [2024-11-09 01:04:55,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:04:55,144 INFO L225 Difference]: With dead ends: 223 [2024-11-09 01:04:55,144 INFO L226 Difference]: Without dead ends: 132 [2024-11-09 01:04:55,145 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-09 01:04:55,150 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 48 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:04:55,150 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 581 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-09 01:04:55,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2024-11-09 01:04:55,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 101. [2024-11-09 01:04:55,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 87 states have (on average 1.3908045977011494) internal successors, (121), 87 states have internal predecessors, (121), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 01:04:55,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 145 transitions. [2024-11-09 01:04:55,170 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 145 transitions. Word has length 104 [2024-11-09 01:04:55,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:04:55,174 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 145 transitions. [2024-11-09 01:04:55,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 01:04:55,174 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 145 transitions. [2024-11-09 01:04:55,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-09 01:04:55,176 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:04:55,176 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:04:55,184 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:04:55,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:04:55,377 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:04:55,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:04:55,378 INFO L85 PathProgramCache]: Analyzing trace with hash -866499504, now seen corresponding path program 1 times [2024-11-09 01:04:55,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:04:55,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1041404095] [2024-11-09 01:04:55,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:04:55,383 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 01:04:55,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:04:55,386 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:04:55,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:04:55,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:04:55,665 INFO L255 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-09 01:04:55,672 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:04:55,818 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 01:04:55,821 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:04:55,821 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:04:55,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1041404095] [2024-11-09 01:04:55,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1041404095] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:04:55,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:04:55,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 01:04:55,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367654140] [2024-11-09 01:04:55,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:04:55,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 01:04:55,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:04:55,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 01:04:55,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 01:04:55,824 INFO L87 Difference]: Start difference. First operand 101 states and 145 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 01:04:56,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:04:56,919 INFO L93 Difference]: Finished difference Result 228 states and 327 transitions. [2024-11-09 01:04:56,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 01:04:56,921 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 104 [2024-11-09 01:04:56,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:04:56,922 INFO L225 Difference]: With dead ends: 228 [2024-11-09 01:04:56,923 INFO L226 Difference]: Without dead ends: 130 [2024-11-09 01:04:56,924 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 01:04:56,924 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 42 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:04:56,925 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 372 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 01:04:56,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2024-11-09 01:04:56,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 101. [2024-11-09 01:04:56,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 87 states have (on average 1.3793103448275863) internal successors, (120), 87 states have internal predecessors, (120), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 01:04:56,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 144 transitions. [2024-11-09 01:04:56,947 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 144 transitions. Word has length 104 [2024-11-09 01:04:56,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:04:56,948 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 144 transitions. [2024-11-09 01:04:56,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 01:04:56,948 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 144 transitions. [2024-11-09 01:04:56,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-09 01:04:56,950 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:04:56,950 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:04:56,963 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:04:57,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:04:57,151 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:04:57,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:04:57,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1706334860, now seen corresponding path program 1 times [2024-11-09 01:04:57,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:04:57,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [112212698] [2024-11-09 01:04:57,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:04:57,153 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 01:04:57,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:04:57,156 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:04:57,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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)] Waiting until timeout for monitored process [2024-11-09 01:04:57,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:04:57,406 INFO L255 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-09 01:04:57,416 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:04:57,590 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 01:04:57,591 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:04:57,591 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:04:57,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [112212698] [2024-11-09 01:04:57,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [112212698] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:04:57,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:04:57,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 01:04:57,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738829712] [2024-11-09 01:04:57,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:04:57,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 01:04:57,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:04:57,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 01:04:57,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 01:04:57,595 INFO L87 Difference]: Start difference. First operand 101 states and 144 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 01:04:58,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:04:58,773 INFO L93 Difference]: Finished difference Result 238 states and 339 transitions. [2024-11-09 01:04:58,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 01:04:58,774 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 104 [2024-11-09 01:04:58,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:04:58,776 INFO L225 Difference]: With dead ends: 238 [2024-11-09 01:04:58,776 INFO L226 Difference]: Without dead ends: 140 [2024-11-09 01:04:58,776 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 01:04:58,777 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 46 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:04:58,778 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 336 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 01:04:58,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2024-11-09 01:04:58,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 105. [2024-11-09 01:04:58,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 91 states have (on average 1.3626373626373627) internal successors, (124), 91 states have internal predecessors, (124), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 01:04:58,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 148 transitions. [2024-11-09 01:04:58,796 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 148 transitions. Word has length 104 [2024-11-09 01:04:58,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:04:58,798 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 148 transitions. [2024-11-09 01:04:58,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 01:04:58,799 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 148 transitions. [2024-11-09 01:04:58,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-09 01:04:58,803 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:04:58,804 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:04:58,812 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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)] Ended with exit code 0 [2024-11-09 01:04:59,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:04:59,005 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:04:59,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:04:59,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1887567858, now seen corresponding path program 1 times [2024-11-09 01:04:59,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:04:59,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1579457396] [2024-11-09 01:04:59,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:04:59,006 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 01:04:59,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:04:59,007 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:04:59,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 (7)] Waiting until timeout for monitored process [2024-11-09 01:04:59,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:04:59,214 INFO L255 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 01:04:59,219 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:04:59,527 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:04:59,528 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 54 treesize of output 36 [2024-11-09 01:04:59,605 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 01:04:59,606 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:04:59,607 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:04:59,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1579457396] [2024-11-09 01:04:59,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1579457396] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:04:59,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:04:59,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 01:04:59,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109986291] [2024-11-09 01:04:59,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:04:59,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 01:04:59,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:04:59,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 01:04:59,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-09 01:04:59,611 INFO L87 Difference]: Start difference. First operand 105 states and 148 transitions. Second operand has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 01:05:01,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:05:01,261 INFO L93 Difference]: Finished difference Result 238 states and 336 transitions. [2024-11-09 01:05:01,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 01:05:01,261 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 104 [2024-11-09 01:05:01,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:05:01,263 INFO L225 Difference]: With dead ends: 238 [2024-11-09 01:05:01,263 INFO L226 Difference]: Without dead ends: 136 [2024-11-09 01:05:01,263 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-09 01:05:01,264 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 48 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-09 01:05:01,265 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 620 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-09 01:05:01,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2024-11-09 01:05:01,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 105. [2024-11-09 01:05:01,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 91 states have (on average 1.3626373626373627) internal successors, (124), 91 states have internal predecessors, (124), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 01:05:01,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 148 transitions. [2024-11-09 01:05:01,272 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 148 transitions. Word has length 104 [2024-11-09 01:05:01,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:05:01,273 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 148 transitions. [2024-11-09 01:05:01,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 01:05:01,273 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 148 transitions. [2024-11-09 01:05:01,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-09 01:05:01,275 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:05:01,275 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:05:01,282 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 (7)] Ended with exit code 0 [2024-11-09 01:05:01,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:05:01,476 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:05:01,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:05:01,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1039133022, now seen corresponding path program 1 times [2024-11-09 01:05:01,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:05:01,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1726589916] [2024-11-09 01:05:01,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:05:01,477 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 01:05:01,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:05:01,480 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:05:01,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:05:01,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:05:01,703 INFO L255 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 01:05:01,706 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:05:01,756 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 01:05:01,756 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:05:01,757 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:05:01,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1726589916] [2024-11-09 01:05:01,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1726589916] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:05:01,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:05:01,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 01:05:01,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831537629] [2024-11-09 01:05:01,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:05:01,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 01:05:01,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:05:01,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 01:05:01,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 01:05:01,761 INFO L87 Difference]: Start difference. First operand 105 states and 148 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 01:05:01,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:05:01,817 INFO L93 Difference]: Finished difference Result 210 states and 297 transitions. [2024-11-09 01:05:01,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 01:05:01,818 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 105 [2024-11-09 01:05:01,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:05:01,819 INFO L225 Difference]: With dead ends: 210 [2024-11-09 01:05:01,821 INFO L226 Difference]: Without dead ends: 108 [2024-11-09 01:05:01,821 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 101 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 01:05:01,822 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 0 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 01:05:01,823 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 486 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 01:05:01,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-09 01:05:01,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 106. [2024-11-09 01:05:01,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 92 states have (on average 1.358695652173913) internal successors, (125), 92 states have internal predecessors, (125), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 01:05:01,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 149 transitions. [2024-11-09 01:05:01,829 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 149 transitions. Word has length 105 [2024-11-09 01:05:01,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:05:01,830 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 149 transitions. [2024-11-09 01:05:01,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 01:05:01,830 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 149 transitions. [2024-11-09 01:05:01,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-09 01:05:01,831 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:05:01,832 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:05:01,839 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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)] Ended with exit code 0 [2024-11-09 01:05:02,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:05:02,033 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:05:02,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:05:02,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1535137563, now seen corresponding path program 1 times [2024-11-09 01:05:02,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:05:02,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [451580943] [2024-11-09 01:05:02,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:05:02,035 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 01:05:02,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:05:02,038 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:05:02,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 (9)] Waiting until timeout for monitored process [2024-11-09 01:05:02,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:05:02,254 INFO L255 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 01:05:02,258 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:05:02,287 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 01:05:02,287 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:05:02,287 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:05:02,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [451580943] [2024-11-09 01:05:02,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [451580943] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:05:02,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:05:02,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 01:05:02,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573444068] [2024-11-09 01:05:02,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:05:02,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 01:05:02,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:05:02,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 01:05:02,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 01:05:02,289 INFO L87 Difference]: Start difference. First operand 106 states and 149 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 01:05:02,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:05:02,341 INFO L93 Difference]: Finished difference Result 212 states and 299 transitions. [2024-11-09 01:05:02,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 01:05:02,341 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 105 [2024-11-09 01:05:02,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:05:02,343 INFO L225 Difference]: With dead ends: 212 [2024-11-09 01:05:02,343 INFO L226 Difference]: Without dead ends: 109 [2024-11-09 01:05:02,343 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 101 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 01:05:02,344 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 0 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 01:05:02,344 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 480 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 01:05:02,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-09 01:05:02,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2024-11-09 01:05:02,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 95 states have (on average 1.3473684210526315) internal successors, (128), 95 states have internal predecessors, (128), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 01:05:02,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 152 transitions. [2024-11-09 01:05:02,351 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 152 transitions. Word has length 105 [2024-11-09 01:05:02,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:05:02,351 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 152 transitions. [2024-11-09 01:05:02,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 01:05:02,352 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 152 transitions. [2024-11-09 01:05:02,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-09 01:05:02,353 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:05:02,353 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:05:02,365 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 (9)] Ended with exit code 0 [2024-11-09 01:05:02,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:05:02,554 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:05:02,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:05:02,555 INFO L85 PathProgramCache]: Analyzing trace with hash -535644825, now seen corresponding path program 1 times [2024-11-09 01:05:02,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:05:02,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1362905600] [2024-11-09 01:05:02,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:05:02,556 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 01:05:02,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:05:02,559 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:05:02,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 (10)] Waiting until timeout for monitored process [2024-11-09 01:05:02,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:05:02,849 INFO L255 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 01:05:02,851 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:05:02,924 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 44 treesize of output 20 [2024-11-09 01:05:02,969 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 01:05:02,970 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:05:02,970 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:05:02,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1362905600] [2024-11-09 01:05:02,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1362905600] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:05:02,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:05:02,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 01:05:02,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038268910] [2024-11-09 01:05:02,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:05:02,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 01:05:02,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:05:02,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 01:05:02,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 01:05:02,973 INFO L87 Difference]: Start difference. First operand 109 states and 152 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 01:05:03,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:05:03,552 INFO L93 Difference]: Finished difference Result 221 states and 309 transitions. [2024-11-09 01:05:03,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 01:05:03,553 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 106 [2024-11-09 01:05:03,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:05:03,554 INFO L225 Difference]: With dead ends: 221 [2024-11-09 01:05:03,554 INFO L226 Difference]: Without dead ends: 115 [2024-11-09 01:05:03,555 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 01:05:03,556 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 1 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 01:05:03,556 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 368 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 01:05:03,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-09 01:05:03,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 109. [2024-11-09 01:05:03,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 95 states have (on average 1.3473684210526315) internal successors, (128), 95 states have internal predecessors, (128), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 01:05:03,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 152 transitions. [2024-11-09 01:05:03,563 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 152 transitions. Word has length 106 [2024-11-09 01:05:03,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:05:03,564 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 152 transitions. [2024-11-09 01:05:03,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 01:05:03,564 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 152 transitions. [2024-11-09 01:05:03,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-09 01:05:03,583 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:05:03,583 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:05:03,590 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 (10)] Forceful destruction successful, exit code 0 [2024-11-09 01:05:03,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:05:03,784 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:05:03,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:05:03,784 INFO L85 PathProgramCache]: Analyzing trace with hash 165419753, now seen corresponding path program 1 times [2024-11-09 01:05:03,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:05:03,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [216672562] [2024-11-09 01:05:03,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:05:03,785 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 01:05:03,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:05:03,786 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:05:03,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:05:04,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:05:04,085 INFO L255 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 01:05:04,089 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:05:04,438 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 01:05:04,706 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 01:05:04,886 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 01:05:05,805 INFO L349 Elim1Store]: treesize reduction 23, result has 45.2 percent of original size [2024-11-09 01:05:05,805 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 34 [2024-11-09 01:05:05,966 INFO L349 Elim1Store]: treesize reduction 14, result has 57.6 percent of original size [2024-11-09 01:05:05,966 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 48 [2024-11-09 01:05:06,076 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 93 proven. 89 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-09 01:05:06,076 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:05:06,250 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:05:06,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [216672562] [2024-11-09 01:05:06,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [216672562] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:05:06,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1677820235] [2024-11-09 01:05:06,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:05:06,252 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 01:05:06,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 01:05:06,255 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 01:05:06,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2024-11-09 01:05:06,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:05:06,971 INFO L255 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 01:05:06,975 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:05:07,787 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2024-11-09 01:05:08,485 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 19 [2024-11-09 01:05:08,838 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 19 [2024-11-09 01:05:09,280 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 26 [2024-11-09 01:05:09,454 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2024-11-09 01:05:09,506 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 99 proven. 89 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-09 01:05:09,507 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:05:09,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1677820235] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:05:09,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [270475439] [2024-11-09 01:05:09,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:05:09,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:05:09,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:05:09,555 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:05:09,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-09 01:05:09,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:05:09,760 INFO L255 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 01:05:09,764 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:05:10,546 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 16 [2024-11-09 01:05:10,842 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:05:10,843 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 56 treesize of output 38 [2024-11-09 01:05:10,947 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 01:05:10,948 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:05:10,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [270475439] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:05:10,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 01:05:10,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9, 10] total 24 [2024-11-09 01:05:10,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011534535] [2024-11-09 01:05:10,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:05:10,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 01:05:10,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:05:10,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 01:05:10,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=663, Unknown=0, NotChecked=0, Total=756 [2024-11-09 01:05:10,950 INFO L87 Difference]: Start difference. First operand 109 states and 152 transitions. Second operand has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 01:05:12,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:05:12,500 INFO L93 Difference]: Finished difference Result 258 states and 358 transitions. [2024-11-09 01:05:12,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 01:05:12,500 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 106 [2024-11-09 01:05:12,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:05:12,502 INFO L225 Difference]: With dead ends: 258 [2024-11-09 01:05:12,502 INFO L226 Difference]: Without dead ends: 152 [2024-11-09 01:05:12,503 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 338 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 294 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=113, Invalid=817, Unknown=0, NotChecked=0, Total=930 [2024-11-09 01:05:12,503 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 175 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 01:05:12,504 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 336 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 01:05:12,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-11-09 01:05:12,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 111. [2024-11-09 01:05:12,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 97 states have (on average 1.3505154639175259) internal successors, (131), 97 states have internal predecessors, (131), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 01:05:12,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 155 transitions. [2024-11-09 01:05:12,511 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 155 transitions. Word has length 106 [2024-11-09 01:05:12,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:05:12,511 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 155 transitions. [2024-11-09 01:05:12,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 01:05:12,512 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 155 transitions. [2024-11-09 01:05:12,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-09 01:05:12,514 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:05:12,514 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:05:12,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-09 01:05:12,724 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2024-11-09 01:05:12,926 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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)] Forceful destruction successful, exit code 0 [2024-11-09 01:05:13,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:05:13,120 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:05:13,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:05:13,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1828724953, now seen corresponding path program 1 times [2024-11-09 01:05:13,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:05:13,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2057767964] [2024-11-09 01:05:13,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:05:13,121 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:05:13,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:05:13,122 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:05:13,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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)] Waiting until timeout for monitored process [2024-11-09 01:05:13,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:05:13,449 INFO L255 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-09 01:05:13,452 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:05:14,189 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 01:05:14,423 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 35 treesize of output 31 [2024-11-09 01:05:14,558 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 54 treesize of output 22 [2024-11-09 01:05:14,603 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 01:05:14,603 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:05:14,603 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:05:14,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2057767964] [2024-11-09 01:05:14,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2057767964] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:05:14,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:05:14,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-09 01:05:14,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356852045] [2024-11-09 01:05:14,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:05:14,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 01:05:14,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:05:14,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 01:05:14,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-09 01:05:14,605 INFO L87 Difference]: Start difference. First operand 111 states and 155 transitions. Second operand has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 10 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 01:05:17,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:05:17,273 INFO L93 Difference]: Finished difference Result 256 states and 354 transitions. [2024-11-09 01:05:17,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 01:05:17,274 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 10 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 106 [2024-11-09 01:05:17,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:05:17,275 INFO L225 Difference]: With dead ends: 256 [2024-11-09 01:05:17,275 INFO L226 Difference]: Without dead ends: 148 [2024-11-09 01:05:17,276 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-11-09 01:05:17,277 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 124 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 887 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 887 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-09 01:05:17,277 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 579 Invalid, 890 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 887 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2024-11-09 01:05:17,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-11-09 01:05:17,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 105. [2024-11-09 01:05:17,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 91 states have (on average 1.3406593406593406) internal successors, (122), 91 states have internal predecessors, (122), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 01:05:17,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 146 transitions. [2024-11-09 01:05:17,286 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 146 transitions. Word has length 106 [2024-11-09 01:05:17,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:05:17,286 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 146 transitions. [2024-11-09 01:05:17,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 10 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 01:05:17,287 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 146 transitions. [2024-11-09 01:05:17,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-09 01:05:17,288 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:05:17,289 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:05:17,297 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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)] Ended with exit code 0 [2024-11-09 01:05:17,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:05:17,489 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:05:17,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:05:17,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1887005511, now seen corresponding path program 1 times [2024-11-09 01:05:17,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:05:17,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [87869077] [2024-11-09 01:05:17,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:05:17,490 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 01:05:17,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:05:17,491 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:05:17,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 (15)] Waiting until timeout for monitored process [2024-11-09 01:05:17,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:05:17,734 INFO L255 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 01:05:17,736 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:05:17,816 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 44 treesize of output 20 [2024-11-09 01:05:17,855 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 01:05:17,856 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:05:17,857 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:05:17,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [87869077] [2024-11-09 01:05:17,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [87869077] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:05:17,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:05:17,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 01:05:17,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112228441] [2024-11-09 01:05:17,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:05:17,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 01:05:17,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:05:17,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 01:05:17,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 01:05:17,859 INFO L87 Difference]: Start difference. First operand 105 states and 146 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 01:05:18,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:05:18,453 INFO L93 Difference]: Finished difference Result 207 states and 289 transitions. [2024-11-09 01:05:18,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 01:05:18,454 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 107 [2024-11-09 01:05:18,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:05:18,455 INFO L225 Difference]: With dead ends: 207 [2024-11-09 01:05:18,455 INFO L226 Difference]: Without dead ends: 105 [2024-11-09 01:05:18,455 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 103 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 01:05:18,456 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 0 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 01:05:18,456 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 373 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 01:05:18,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-11-09 01:05:18,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2024-11-09 01:05:18,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 91 states have (on average 1.3296703296703296) internal successors, (121), 91 states have internal predecessors, (121), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 01:05:18,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 145 transitions. [2024-11-09 01:05:18,463 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 145 transitions. Word has length 107 [2024-11-09 01:05:18,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:05:18,464 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 145 transitions. [2024-11-09 01:05:18,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 01:05:18,464 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 145 transitions. [2024-11-09 01:05:18,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-09 01:05:18,466 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:05:18,466 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:05:18,473 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 (15)] Forceful destruction successful, exit code 0 [2024-11-09 01:05:18,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:05:18,666 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:05:18,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:05:18,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1081801909, now seen corresponding path program 1 times [2024-11-09 01:05:18,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:05:18,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [479391067] [2024-11-09 01:05:18,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:05:18,668 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 01:05:18,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:05:18,670 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:05:18,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:05:18,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:05:18,979 INFO L255 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 01:05:18,983 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:05:19,255 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 01:05:19,451 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2024-11-09 01:05:19,575 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 01:05:21,267 INFO L349 Elim1Store]: treesize reduction 23, result has 45.2 percent of original size [2024-11-09 01:05:21,268 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 34 [2024-11-09 01:05:21,413 INFO L349 Elim1Store]: treesize reduction 14, result has 57.6 percent of original size [2024-11-09 01:05:21,414 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 48 [2024-11-09 01:05:21,554 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 93 proven. 89 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-09 01:05:21,554 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:05:21,734 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:05:21,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [479391067] [2024-11-09 01:05:21,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [479391067] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:05:21,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [455354885] [2024-11-09 01:05:21,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:05:21,735 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 01:05:21,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 01:05:21,736 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 01:05:21,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2024-11-09 01:05:22,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:05:22,410 INFO L255 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-09 01:05:22,414 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:05:23,265 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 01:05:23,721 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 01:05:23,960 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 01:05:24,264 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 22 [2024-11-09 01:05:24,531 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 93 proven. 89 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-09 01:05:24,531 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:05:24,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [455354885] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:05:24,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1714779911] [2024-11-09 01:05:24,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:05:24,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:05:24,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:05:24,581 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:05:24,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-09 01:05:24,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:05:24,801 INFO L255 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-09 01:05:24,804 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:05:26,443 INFO L349 Elim1Store]: treesize reduction 23, result has 45.2 percent of original size [2024-11-09 01:05:26,443 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 29 [2024-11-09 01:05:26,871 INFO L349 Elim1Store]: treesize reduction 21, result has 30.0 percent of original size [2024-11-09 01:05:26,871 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 43 treesize of output 41 [2024-11-09 01:05:26,882 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2024-11-09 01:05:27,265 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:05:27,265 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 78 treesize of output 46 [2024-11-09 01:05:27,398 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 01:05:27,398 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:05:27,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1714779911] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:05:27,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 01:05:27,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10, 10] total 28 [2024-11-09 01:05:27,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369525797] [2024-11-09 01:05:27,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:05:27,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 01:05:27,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:05:27,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 01:05:27,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=942, Unknown=0, NotChecked=0, Total=1056 [2024-11-09 01:05:27,401 INFO L87 Difference]: Start difference. First operand 105 states and 145 transitions. Second operand has 11 states, 11 states have (on average 4.545454545454546) internal successors, (50), 10 states have internal predecessors, (50), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 01:05:30,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:05:30,041 INFO L93 Difference]: Finished difference Result 233 states and 320 transitions. [2024-11-09 01:05:30,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 01:05:30,041 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.545454545454546) internal successors, (50), 10 states have internal predecessors, (50), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 107 [2024-11-09 01:05:30,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:05:30,043 INFO L225 Difference]: With dead ends: 233 [2024-11-09 01:05:30,043 INFO L226 Difference]: Without dead ends: 131 [2024-11-09 01:05:30,043 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 339 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 412 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=142, Invalid=1190, Unknown=0, NotChecked=0, Total=1332 [2024-11-09 01:05:30,044 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 278 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-09 01:05:30,044 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 331 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 581 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-09 01:05:30,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-11-09 01:05:30,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 105. [2024-11-09 01:05:30,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 91 states have (on average 1.3186813186813187) internal successors, (120), 91 states have internal predecessors, (120), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 01:05:30,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 144 transitions. [2024-11-09 01:05:30,056 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 144 transitions. Word has length 107 [2024-11-09 01:05:30,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:05:30,056 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 144 transitions. [2024-11-09 01:05:30,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.545454545454546) internal successors, (50), 10 states have internal predecessors, (50), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 01:05:30,057 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 144 transitions. [2024-11-09 01:05:30,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-09 01:05:30,058 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:05:30,058 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:05:30,066 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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)] Ended with exit code 0 [2024-11-09 01:05:30,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2024-11-09 01:05:30,474 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-09 01:05:30,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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=3,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:05:30,660 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:05:30,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:05:30,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1573561875, now seen corresponding path program 1 times [2024-11-09 01:05:30,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:05:30,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1575713155] [2024-11-09 01:05:30,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:05:30,661 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 01:05:30,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:05:30,663 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:05:30,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:05:30,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:05:30,940 INFO L255 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 01:05:30,943 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:05:31,176 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 01:05:31,367 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2024-11-09 01:05:31,489 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 01:05:34,056 INFO L349 Elim1Store]: treesize reduction 23, result has 45.2 percent of original size [2024-11-09 01:05:34,056 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 34 [2024-11-09 01:05:34,243 INFO L349 Elim1Store]: treesize reduction 14, result has 57.6 percent of original size [2024-11-09 01:05:34,243 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 48 [2024-11-09 01:05:34,379 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 93 proven. 89 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-09 01:05:34,379 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:05:34,547 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:05:34,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1575713155] [2024-11-09 01:05:34,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1575713155] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:05:34,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [147096515] [2024-11-09 01:05:34,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:05:34,548 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 01:05:34,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 01:05:34,550 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 01:05:34,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2024-11-09 01:05:35,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:05:35,187 INFO L255 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 01:05:35,190 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:05:36,415 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 01:05:36,642 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 01:05:37,091 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 14 [2024-11-09 01:05:37,228 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 14 [2024-11-09 01:05:37,375 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-11-09 01:05:39,527 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-11-09 01:05:39,527 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:05:40,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [147096515] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:05:40,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1774031093] [2024-11-09 01:05:40,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:05:40,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:05:40,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:05:40,064 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:05:40,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-09 01:05:40,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:05:40,272 INFO L255 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 01:05:40,275 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:05:40,488 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-09 01:05:40,606 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 01:05:40,718 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2024-11-09 01:05:43,553 INFO L349 Elim1Store]: treesize reduction 23, result has 45.2 percent of original size [2024-11-09 01:05:43,553 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 34 [2024-11-09 01:05:43,673 INFO L349 Elim1Store]: treesize reduction 14, result has 57.6 percent of original size [2024-11-09 01:05:43,673 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 48 [2024-11-09 01:05:43,827 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 93 proven. 89 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-09 01:05:43,827 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:05:43,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1774031093] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:05:43,882 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:05:43,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 10] total 18 [2024-11-09 01:05:43,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257168250] [2024-11-09 01:05:43,882 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 01:05:43,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-09 01:05:43,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:05:43,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-09 01:05:43,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=717, Unknown=6, NotChecked=0, Total=812 [2024-11-09 01:05:43,884 INFO L87 Difference]: Start difference. First operand 105 states and 144 transitions. Second operand has 19 states, 18 states have (on average 5.722222222222222) internal successors, (103), 18 states have internal predecessors, (103), 6 states have call successors, (24), 5 states have call predecessors, (24), 6 states have return successors, (24), 5 states have call predecessors, (24), 6 states have call successors, (24) [2024-11-09 01:05:46,115 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:05:50,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:05:53,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:05:55,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:05:57,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:05:59,186 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:06:01,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:06:03,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:06:08,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:06:11,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:06:16,442 WARN L539 Checker$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 01:06:18,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:06:20,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:06:24,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:06:27,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:06:29,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:06:31,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:06:33,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:06:36,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:06:38,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:06:40,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:06:42,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:06:44,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:06:46,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:06:46,984 INFO L93 Difference]: Finished difference Result 558 states and 745 transitions. [2024-11-09 01:06:46,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-09 01:06:46,985 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 5.722222222222222) internal successors, (103), 18 states have internal predecessors, (103), 6 states have call successors, (24), 5 states have call predecessors, (24), 6 states have return successors, (24), 5 states have call predecessors, (24), 6 states have call successors, (24) Word has length 107 [2024-11-09 01:06:46,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:06:46,987 INFO L225 Difference]: With dead ends: 558 [2024-11-09 01:06:46,987 INFO L226 Difference]: Without dead ends: 456 [2024-11-09 01:06:46,990 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 424 GetRequests, 366 SyntacticMatches, 3 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 648 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=467, Invalid=2719, Unknown=6, NotChecked=0, Total=3192 [2024-11-09 01:06:46,991 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 1529 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 1380 mSolverCounterSat, 77 mSolverCounterUnsat, 18 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 59.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1532 SdHoareTripleChecker+Valid, 672 SdHoareTripleChecker+Invalid, 1475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 1380 IncrementalHoareTripleChecker+Invalid, 18 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 60.2s IncrementalHoareTripleChecker+Time [2024-11-09 01:06:46,992 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1532 Valid, 672 Invalid, 1475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 1380 Invalid, 18 Unknown, 0 Unchecked, 60.2s Time] [2024-11-09 01:06:46,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2024-11-09 01:06:47,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 199. [2024-11-09 01:06:47,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 170 states have (on average 1.2941176470588236) internal successors, (220), 170 states have internal predecessors, (220), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-09 01:06:47,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 268 transitions. [2024-11-09 01:06:47,021 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 268 transitions. Word has length 107 [2024-11-09 01:06:47,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:06:47,022 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 268 transitions. [2024-11-09 01:06:47,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 5.722222222222222) internal successors, (103), 18 states have internal predecessors, (103), 6 states have call successors, (24), 5 states have call predecessors, (24), 6 states have return successors, (24), 5 states have call predecessors, (24), 6 states have call successors, (24) [2024-11-09 01:06:47,022 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 268 transitions. [2024-11-09 01:06:47,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-09 01:06:47,030 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:06:47,030 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:06:47,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (20)] Forceful destruction successful, exit code 0 [2024-11-09 01:06:47,246 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-09 01:06:47,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:06:47,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:06:47,631 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:06:47,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:06:47,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1530931749, now seen corresponding path program 1 times [2024-11-09 01:06:47,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:06:47,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [814990021] [2024-11-09 01:06:47,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:06:47,632 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 01:06:47,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:06:47,633 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:06:47,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:06:47,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:06:47,869 INFO L255 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 01:06:47,871 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:06:48,004 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:06:48,004 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 65 treesize of output 41 [2024-11-09 01:06:48,060 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 01:06:48,060 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:06:48,060 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:06:48,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [814990021] [2024-11-09 01:06:48,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [814990021] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:06:48,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:06:48,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 01:06:48,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388992101] [2024-11-09 01:06:48,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:06:48,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 01:06:48,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:06:48,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 01:06:48,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 01:06:48,062 INFO L87 Difference]: Start difference. First operand 199 states and 268 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 01:06:49,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:06:49,072 INFO L93 Difference]: Finished difference Result 352 states and 471 transitions. [2024-11-09 01:06:49,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 01:06:49,072 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 108 [2024-11-09 01:06:49,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:06:49,074 INFO L225 Difference]: With dead ends: 352 [2024-11-09 01:06:49,074 INFO L226 Difference]: Without dead ends: 236 [2024-11-09 01:06:49,075 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-09 01:06:49,075 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 36 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 01:06:49,076 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 395 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 01:06:49,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2024-11-09 01:06:49,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 205. [2024-11-09 01:06:49,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 176 states have (on average 1.2840909090909092) internal successors, (226), 176 states have internal predecessors, (226), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-09 01:06:49,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 274 transitions. [2024-11-09 01:06:49,099 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 274 transitions. Word has length 108 [2024-11-09 01:06:49,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:06:49,099 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 274 transitions. [2024-11-09 01:06:49,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 01:06:49,100 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 274 transitions. [2024-11-09 01:06:49,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-09 01:06:49,101 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:06:49,101 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:06:49,108 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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)] Ended with exit code 0 [2024-11-09 01:06:49,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:06:49,301 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:06:49,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:06:49,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1122830053, now seen corresponding path program 1 times [2024-11-09 01:06:49,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:06:49,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [502049676] [2024-11-09 01:06:49,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:06:49,302 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 01:06:49,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:06:49,305 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:06:49,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:06:49,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:06:49,585 INFO L255 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-09 01:06:49,587 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:06:52,108 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:06:52,108 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 67 treesize of output 49 [2024-11-09 01:06:53,647 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 01:06:53,647 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:06:53,647 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:06:53,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [502049676] [2024-11-09 01:06:53,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [502049676] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:06:53,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:06:53,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 01:06:53,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875896335] [2024-11-09 01:06:53,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:06:53,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 01:06:53,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:06:53,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 01:06:53,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-09 01:06:53,649 INFO L87 Difference]: Start difference. First operand 205 states and 274 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 01:06:57,746 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:06:59,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:07:09,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:07:10,903 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:07:14,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:07:14,071 INFO L93 Difference]: Finished difference Result 374 states and 495 transitions. [2024-11-09 01:07:14,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 01:07:14,072 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 109 [2024-11-09 01:07:14,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:07:14,073 INFO L225 Difference]: With dead ends: 374 [2024-11-09 01:07:14,073 INFO L226 Difference]: Without dead ends: 254 [2024-11-09 01:07:14,074 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-09 01:07:14,075 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 46 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.8s IncrementalHoareTripleChecker+Time [2024-11-09 01:07:14,075 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 590 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 384 Invalid, 1 Unknown, 0 Unchecked, 18.8s Time] [2024-11-09 01:07:14,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2024-11-09 01:07:14,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 189. [2024-11-09 01:07:14,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 160 states have (on average 1.2875) internal successors, (206), 160 states have internal predecessors, (206), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-09 01:07:14,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 254 transitions. [2024-11-09 01:07:14,103 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 254 transitions. Word has length 109 [2024-11-09 01:07:14,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:07:14,104 INFO L471 AbstractCegarLoop]: Abstraction has 189 states and 254 transitions. [2024-11-09 01:07:14,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 01:07:14,105 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 254 transitions. [2024-11-09 01:07:14,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-09 01:07:14,106 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:07:14,106 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:07:14,117 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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)] Ended with exit code 0 [2024-11-09 01:07:14,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:07:14,307 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:07:14,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:07:14,307 INFO L85 PathProgramCache]: Analyzing trace with hash 2147120567, now seen corresponding path program 1 times [2024-11-09 01:07:14,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:07:14,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1267433758] [2024-11-09 01:07:14,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:07:14,308 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 01:07:14,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:07:14,310 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:07:14,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:07:14,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:07:14,703 INFO L255 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 01:07:14,708 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:07:15,182 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 01:07:15,497 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 01:07:15,785 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 20 treesize of output 15 [2024-11-09 01:07:16,949 INFO L349 Elim1Store]: treesize reduction 23, result has 45.2 percent of original size [2024-11-09 01:07:16,949 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 34 [2024-11-09 01:07:17,143 INFO L349 Elim1Store]: treesize reduction 14, result has 57.6 percent of original size [2024-11-09 01:07:17,143 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 48 [2024-11-09 01:07:17,264 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 93 proven. 89 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-09 01:07:17,264 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:07:17,476 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:07:17,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1267433758] [2024-11-09 01:07:17,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1267433758] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:07:17,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [737154449] [2024-11-09 01:07:17,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:07:17,477 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 01:07:17,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 01:07:17,478 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 01:07:17,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2024-11-09 01:07:18,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:07:18,376 INFO L255 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 01:07:18,380 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:07:19,313 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2024-11-09 01:07:20,222 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 19 [2024-11-09 01:07:20,665 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 19 [2024-11-09 01:07:21,196 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 26 [2024-11-09 01:07:21,317 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 38 treesize of output 18 [2024-11-09 01:07:21,366 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 99 proven. 89 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-09 01:07:21,366 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:07:21,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [737154449] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:07:21,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1562648255] [2024-11-09 01:07:21,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:07:21,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:07:21,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:07:21,411 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:07:21,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-09 01:07:21,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:07:21,664 INFO L255 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 01:07:21,671 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:07:22,104 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-09 01:07:22,815 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 23 [2024-11-09 01:07:23,045 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 23 [2024-11-09 01:07:23,358 INFO L349 Elim1Store]: treesize reduction 33, result has 21.4 percent of original size [2024-11-09 01:07:23,358 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 28 [2024-11-09 01:07:23,483 INFO L349 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2024-11-09 01:07:23,483 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 28 treesize of output 14 [2024-11-09 01:07:23,537 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 99 proven. 89 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-09 01:07:23,538 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:07:23,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1562648255] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:07:23,601 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:07:23,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 10] total 24 [2024-11-09 01:07:23,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385250863] [2024-11-09 01:07:23,602 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 01:07:23,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-09 01:07:23,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:07:23,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-09 01:07:23,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=636, Unknown=0, NotChecked=0, Total=756 [2024-11-09 01:07:23,605 INFO L87 Difference]: Start difference. First operand 189 states and 254 transitions. Second operand has 25 states, 22 states have (on average 5.590909090909091) internal successors, (123), 22 states have internal predecessors, (123), 11 states have call successors, (30), 10 states have call predecessors, (30), 11 states have return successors, (30), 8 states have call predecessors, (30), 11 states have call successors, (30) [2024-11-09 01:07:29,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:07:29,315 INFO L93 Difference]: Finished difference Result 426 states and 554 transitions. [2024-11-09 01:07:29,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-09 01:07:29,316 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 22 states have (on average 5.590909090909091) internal successors, (123), 22 states have internal predecessors, (123), 11 states have call successors, (30), 10 states have call predecessors, (30), 11 states have return successors, (30), 8 states have call predecessors, (30), 11 states have call successors, (30) Word has length 110 [2024-11-09 01:07:29,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:07:29,318 INFO L225 Difference]: With dead ends: 426 [2024-11-09 01:07:29,318 INFO L226 Difference]: Without dead ends: 297 [2024-11-09 01:07:29,319 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 424 GetRequests, 386 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 394 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=267, Invalid=1139, Unknown=0, NotChecked=0, Total=1406 [2024-11-09 01:07:29,319 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 302 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 1011 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 630 SdHoareTripleChecker+Invalid, 1034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1011 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-09 01:07:29,320 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 630 Invalid, 1034 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1011 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-09 01:07:29,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2024-11-09 01:07:29,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 233. [2024-11-09 01:07:29,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 200 states have (on average 1.27) internal successors, (254), 201 states have internal predecessors, (254), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-09 01:07:29,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 306 transitions. [2024-11-09 01:07:29,348 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 306 transitions. Word has length 110 [2024-11-09 01:07:29,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:07:29,349 INFO L471 AbstractCegarLoop]: Abstraction has 233 states and 306 transitions. [2024-11-09 01:07:29,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 22 states have (on average 5.590909090909091) internal successors, (123), 22 states have internal predecessors, (123), 11 states have call successors, (30), 10 states have call predecessors, (30), 11 states have return successors, (30), 8 states have call predecessors, (30), 11 states have call successors, (30) [2024-11-09 01:07:29,349 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 306 transitions. [2024-11-09 01:07:29,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-09 01:07:29,350 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:07:29,350 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:07:29,358 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (25)] Ended with exit code 0 [2024-11-09 01:07:29,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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)] Forceful destruction successful, exit code 0 [2024-11-09 01:07:29,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-11-09 01:07:29,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:07:29,951 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:07:29,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:07:29,952 INFO L85 PathProgramCache]: Analyzing trace with hash 777627383, now seen corresponding path program 1 times [2024-11-09 01:07:29,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:07:29,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2118740333] [2024-11-09 01:07:29,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:07:29,953 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:07:29,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:07:29,956 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:07:29,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:07:30,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:07:30,272 INFO L255 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-09 01:07:30,277 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:07:30,803 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 01:07:30,937 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 01:07:31,074 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 01:07:31,204 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 19 [2024-11-09 01:07:31,576 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-11-09 01:07:31,576 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:07:31,977 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 01:07:31,977 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:07:31,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2118740333] [2024-11-09 01:07:31,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2118740333] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 01:07:31,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 01:07:31,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2024-11-09 01:07:31,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307617843] [2024-11-09 01:07:31,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:07:31,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 01:07:31,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:07:31,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 01:07:31,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-09 01:07:31,979 INFO L87 Difference]: Start difference. First operand 233 states and 306 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 01:07:33,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:07:33,313 INFO L93 Difference]: Finished difference Result 290 states and 374 transitions. [2024-11-09 01:07:33,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 01:07:33,314 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 110 [2024-11-09 01:07:33,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:07:33,317 INFO L225 Difference]: With dead ends: 290 [2024-11-09 01:07:33,317 INFO L226 Difference]: Without dead ends: 288 [2024-11-09 01:07:33,318 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2024-11-09 01:07:33,318 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 30 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 01:07:33,319 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 563 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 01:07:33,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2024-11-09 01:07:33,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 272. [2024-11-09 01:07:33,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 239 states have (on average 1.2552301255230125) internal successors, (300), 240 states have internal predecessors, (300), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-09 01:07:33,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 352 transitions. [2024-11-09 01:07:33,347 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 352 transitions. Word has length 110 [2024-11-09 01:07:33,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:07:33,347 INFO L471 AbstractCegarLoop]: Abstraction has 272 states and 352 transitions. [2024-11-09 01:07:33,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 01:07:33,348 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 352 transitions. [2024-11-09 01:07:33,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-09 01:07:33,349 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:07:33,349 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:07:33,357 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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)] Ended with exit code 0 [2024-11-09 01:07:33,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:07:33,550 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:07:33,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:07:33,550 INFO L85 PathProgramCache]: Analyzing trace with hash -849444484, now seen corresponding path program 1 times [2024-11-09 01:07:33,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:07:33,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [378853331] [2024-11-09 01:07:33,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:07:33,551 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 01:07:33,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:07:33,552 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:07:33,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 (28)] Waiting until timeout for monitored process [2024-11-09 01:07:33,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:07:33,859 INFO L255 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 01:07:33,862 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:07:34,502 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 01:07:34,858 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2024-11-09 01:07:35,158 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2024-11-09 01:07:35,514 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2024-11-09 01:07:35,693 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 35 treesize of output 31 [2024-11-09 01:07:35,746 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 34 treesize of output 14 [2024-11-09 01:07:35,793 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 93 proven. 89 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-09 01:07:35,793 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:07:36,134 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:07:36,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [378853331] [2024-11-09 01:07:36,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [378853331] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:07:36,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [993427230] [2024-11-09 01:07:36,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:07:36,135 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 01:07:36,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 01:07:36,136 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 01:07:36,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2024-11-09 01:07:36,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:07:36,900 INFO L255 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-09 01:07:36,903 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:07:37,954 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 01:07:38,540 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 01:07:38,841 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 18 treesize of output 13 [2024-11-09 01:07:39,338 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 01:07:39,515 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 27 [2024-11-09 01:07:39,622 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 30 treesize of output 14 [2024-11-09 01:07:39,660 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 93 proven. 89 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-09 01:07:39,660 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:07:39,676 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_549 (Array (_ BitVec 32) (_ BitVec 32))) (|ULTIMATE.start_property_#t~mem73#1| (_ BitVec 8))) (not (bvugt ((_ zero_extend 24) |ULTIMATE.start_property_#t~mem73#1|) (select (select (store |c_#memory_int| |c_~#float_Array_0~0.base| v_ArrVal_549) |c_~#unsigned_long_int_Array_0~0.base|) |c_~#unsigned_long_int_Array_0~0.offset|)))) is different from false [2024-11-09 01:07:39,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [993427230] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:07:39,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [716059997] [2024-11-09 01:07:39,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:07:39,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:07:39,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:07:39,827 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:07:39,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-09 01:07:40,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:07:40,401 INFO L255 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-09 01:07:40,404 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:07:40,764 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:07:40,764 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 117 treesize of output 66 [2024-11-09 01:07:41,266 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-09 01:07:41,266 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:07:42,772 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 01:07:42,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [716059997] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 01:07:42,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:07:42,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10, 10, 8] total 33 [2024-11-09 01:07:42,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506601558] [2024-11-09 01:07:42,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:07:42,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 01:07:42,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:07:42,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 01:07:42,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=1199, Unknown=11, NotChecked=70, Total=1406 [2024-11-09 01:07:42,775 INFO L87 Difference]: Start difference. First operand 272 states and 352 transitions. Second operand has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 01:07:46,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:07:46,215 INFO L93 Difference]: Finished difference Result 450 states and 583 transitions. [2024-11-09 01:07:46,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 01:07:46,216 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 110 [2024-11-09 01:07:46,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:07:46,218 INFO L225 Difference]: With dead ends: 450 [2024-11-09 01:07:46,219 INFO L226 Difference]: Without dead ends: 284 [2024-11-09 01:07:46,220 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 501 GetRequests, 457 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 583 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=157, Invalid=1642, Unknown=11, NotChecked=82, Total=1892 [2024-11-09 01:07:46,221 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 50 mSDsluCounter, 756 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 882 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-09 01:07:46,221 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 882 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-09 01:07:46,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2024-11-09 01:07:46,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 274. [2024-11-09 01:07:46,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 241 states have (on average 1.2531120331950207) internal successors, (302), 242 states have internal predecessors, (302), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-09 01:07:46,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 354 transitions. [2024-11-09 01:07:46,249 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 354 transitions. Word has length 110 [2024-11-09 01:07:46,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:07:46,250 INFO L471 AbstractCegarLoop]: Abstraction has 274 states and 354 transitions. [2024-11-09 01:07:46,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 01:07:46,253 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 354 transitions. [2024-11-09 01:07:46,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-09 01:07:46,254 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:07:46,255 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:07:46,278 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-09 01:07:46,461 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 (28)] Forceful destruction successful, exit code 0 [2024-11-09 01:07:46,661 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (29)] Ended with exit code 0 [2024-11-09 01:07:46,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 01:07:46,856 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:07:46,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:07:46,856 INFO L85 PathProgramCache]: Analyzing trace with hash -148379906, now seen corresponding path program 1 times [2024-11-09 01:07:46,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:07:46,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [319781323] [2024-11-09 01:07:46,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:07:46,857 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 01:07:46,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:07:46,858 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:07:46,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 (31)] Waiting until timeout for monitored process [2024-11-09 01:07:47,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:07:47,194 INFO L255 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 01:07:47,197 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:07:47,956 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 01:07:48,339 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 01:07:48,653 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2024-11-09 01:07:49,034 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2024-11-09 01:07:49,220 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 35 treesize of output 31 [2024-11-09 01:07:49,298 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 34 treesize of output 14 [2024-11-09 01:07:49,349 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 93 proven. 89 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-09 01:07:49,349 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:07:49,465 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_591 (Array (_ BitVec 32) (_ BitVec 32))) (|ULTIMATE.start_property_#t~mem73#1| (_ BitVec 8))) (not (bvugt ((_ zero_extend 24) |ULTIMATE.start_property_#t~mem73#1|) (select (select (store |c_#memory_int| |c_~#float_Array_0~0.base| v_ArrVal_591) |c_~#unsigned_long_int_Array_0~0.base|) |c_~#unsigned_long_int_Array_0~0.offset|)))) is different from false [2024-11-09 01:07:49,629 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:07:49,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [319781323] [2024-11-09 01:07:49,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [319781323] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:07:49,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1880142280] [2024-11-09 01:07:49,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:07:49,630 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 01:07:49,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 01:07:49,631 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 01:07:49,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (32)] Waiting until timeout for monitored process [2024-11-09 01:07:50,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:07:50,431 INFO L255 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-09 01:07:50,435 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:07:51,564 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 01:07:52,211 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 01:07:52,546 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 01:07:53,035 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 01:07:53,251 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 27 [2024-11-09 01:07:53,351 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 30 treesize of output 14 [2024-11-09 01:07:53,396 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 93 proven. 89 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-09 01:07:53,396 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:07:53,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1880142280] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:07:53,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1464729946] [2024-11-09 01:07:53,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:07:53,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:07:53,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:07:53,744 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:07:53,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-09 01:07:54,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:07:54,151 INFO L255 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-09 01:07:54,154 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:07:55,173 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 19 [2024-11-09 01:07:55,984 INFO L349 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2024-11-09 01:07:55,984 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 50 [2024-11-09 01:07:56,008 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2024-11-09 01:07:56,571 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 38 [2024-11-09 01:07:56,757 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 01:07:56,758 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:07:56,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1464729946] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:07:56,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 01:07:56,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [10, 10] total 28 [2024-11-09 01:07:56,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636423898] [2024-11-09 01:07:56,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:07:56,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 01:07:56,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:07:56,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 01:07:56,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=918, Unknown=17, NotChecked=62, Total=1122 [2024-11-09 01:07:56,760 INFO L87 Difference]: Start difference. First operand 274 states and 354 transitions. Second operand has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 11 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 01:08:01,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:08:01,339 INFO L93 Difference]: Finished difference Result 557 states and 719 transitions. [2024-11-09 01:08:01,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 01:08:01,341 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 11 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 110 [2024-11-09 01:08:01,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:08:01,343 INFO L225 Difference]: With dead ends: 557 [2024-11-09 01:08:01,343 INFO L226 Difference]: Without dead ends: 380 [2024-11-09 01:08:01,344 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 389 GetRequests, 351 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=154, Invalid=1165, Unknown=17, NotChecked=70, Total=1406 [2024-11-09 01:08:01,345 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 262 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-09 01:08:01,345 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 558 Invalid, 726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 724 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-09 01:08:01,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2024-11-09 01:08:01,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 288. [2024-11-09 01:08:01,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 255 states have (on average 1.2549019607843137) internal successors, (320), 256 states have internal predecessors, (320), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-09 01:08:01,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 372 transitions. [2024-11-09 01:08:01,379 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 372 transitions. Word has length 110 [2024-11-09 01:08:01,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:08:01,380 INFO L471 AbstractCegarLoop]: Abstraction has 288 states and 372 transitions. [2024-11-09 01:08:01,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 11 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 01:08:01,381 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 372 transitions. [2024-11-09 01:08:01,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-09 01:08:01,382 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:08:01,382 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:08:01,390 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 (31)] Ended with exit code 0 [2024-11-09 01:08:01,590 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (32)] Forceful destruction successful, exit code 0 [2024-11-09 01:08:01,801 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2024-11-09 01:08:01,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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=3,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:08:01,983 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:08:01,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:08:01,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1428243584, now seen corresponding path program 1 times [2024-11-09 01:08:01,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:08:01,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [58597834] [2024-11-09 01:08:01,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:08:01,984 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 01:08:01,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:08:01,986 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:08:01,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 (34)] Waiting until timeout for monitored process [2024-11-09 01:08:02,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:08:02,383 INFO L255 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 01:08:02,387 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:08:02,983 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 01:08:03,367 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 20 treesize of output 15 [2024-11-09 01:08:03,656 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 01:08:04,077 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2024-11-09 01:08:04,262 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 52 treesize of output 22 [2024-11-09 01:08:04,348 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 143 proven. 15 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-09 01:08:04,348 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:08:04,554 WARN L851 $PredicateComparison]: unable to prove that (forall ((|~#unsigned_char_Array_0~0.offset| (_ BitVec 32)) (v_ArrVal_657 (Array (_ BitVec 32) (_ BitVec 32)))) (not (= (_ bv0 32) (bvneg (let ((.cse0 (store |c_#memory_int| |c_~#unsigned_long_int_Array_0~0.base| v_ArrVal_657))) (bvadd (bvneg ((_ zero_extend 24) ((_ extract 7 0) (select (select .cse0 |c_~#unsigned_char_Array_0~0.base|) (bvadd (_ bv2 32) |~#unsigned_char_Array_0~0.offset|))))) ((_ sign_extend 16) ((_ extract 15 0) (select (select .cse0 |c_~#signed_short_int_Array_0~0.base|) (bvadd |c_~#signed_short_int_Array_0~0.offset| (_ bv2 32))))))))))) is different from false [2024-11-09 01:08:04,599 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:08:04,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [58597834] [2024-11-09 01:08:04,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [58597834] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:08:04,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [495570872] [2024-11-09 01:08:04,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:08:04,600 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 01:08:04,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 01:08:04,601 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 01:08:04,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (35)] Waiting until timeout for monitored process [2024-11-09 01:08:05,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:08:05,655 INFO L255 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-09 01:08:05,658 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:08:06,686 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2024-11-09 01:08:07,604 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 19 [2024-11-09 01:08:08,116 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 19 [2024-11-09 01:08:08,729 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 19 [2024-11-09 01:08:09,044 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 99 proven. 89 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-09 01:08:09,044 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:08:13,535 WARN L851 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_step_#t~mem33#1| (_ BitVec 8)) (|ULTIMATE.start_step_~stepLocal_1~0#1| (_ BitVec 8)) (|ULTIMATE.start_step_#t~mem34#1| (_ BitVec 8)) (v_ArrVal_679 (Array (_ BitVec 32) (_ BitVec 32)))) (not (= ((_ zero_extend 24) |ULTIMATE.start_step_~stepLocal_1~0#1|) (bvadd (bvneg (bvadd (bvneg ((_ zero_extend 24) |ULTIMATE.start_step_#t~mem33#1|)) ((_ sign_extend 16) ((_ extract 15 0) (select (select (store |c_#memory_int| |c_~#unsigned_long_int_Array_0~0.base| v_ArrVal_679) |c_~#signed_short_int_Array_0~0.base|) (bvadd |c_~#signed_short_int_Array_0~0.offset| (_ bv2 32))))))) ((_ zero_extend 24) |ULTIMATE.start_step_#t~mem34#1|))))) is different from false [2024-11-09 01:08:13,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [495570872] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:08:13,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1530997448] [2024-11-09 01:08:13,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:08:13,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:08:13,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:08:13,601 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:08:13,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-09 01:08:14,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:08:14,091 INFO L255 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 01:08:14,095 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:08:14,733 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-09 01:08:15,630 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 23 [2024-11-09 01:08:15,968 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 23 [2024-11-09 01:08:16,502 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 23 [2024-11-09 01:08:16,719 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 32 treesize of output 14 [2024-11-09 01:08:16,814 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 99 proven. 89 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-09 01:08:16,814 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:08:16,877 WARN L851 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_step_#t~mem33#1| (_ BitVec 8)) (|ULTIMATE.start_step_~stepLocal_1~0#1| (_ BitVec 8)) (|ULTIMATE.start_step_#t~mem34#1| (_ BitVec 8)) (v_ArrVal_702 (Array (_ BitVec 32) (_ BitVec 32)))) (not (= ((_ zero_extend 24) |ULTIMATE.start_step_~stepLocal_1~0#1|) (bvadd ((_ zero_extend 24) |ULTIMATE.start_step_#t~mem34#1|) (bvneg (bvadd ((_ sign_extend 16) ((_ extract 15 0) (select (select (store |c_#memory_int| |c_~#unsigned_long_int_Array_0~0.base| v_ArrVal_702) |c_~#signed_short_int_Array_0~0.base|) (bvadd |c_~#signed_short_int_Array_0~0.offset| (_ bv2 32))))) (bvneg ((_ zero_extend 24) |ULTIMATE.start_step_#t~mem33#1|)))))))) is different from false [2024-11-09 01:08:16,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1530997448] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:08:16,939 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:08:16,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 10] total 26 [2024-11-09 01:08:16,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030509011] [2024-11-09 01:08:16,939 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 01:08:16,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-09 01:08:16,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:08:16,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-09 01:08:16,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=836, Unknown=5, NotChecked=186, Total=1190 [2024-11-09 01:08:16,942 INFO L87 Difference]: Start difference. First operand 288 states and 372 transitions. Second operand has 27 states, 24 states have (on average 5.333333333333333) internal successors, (128), 24 states have internal predecessors, (128), 10 states have call successors, (30), 9 states have call predecessors, (30), 10 states have return successors, (30), 7 states have call predecessors, (30), 10 states have call successors, (30) [2024-11-09 01:08:21,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:08:21,234 INFO L93 Difference]: Finished difference Result 422 states and 543 transitions. [2024-11-09 01:08:21,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 01:08:21,235 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 24 states have (on average 5.333333333333333) internal successors, (128), 24 states have internal predecessors, (128), 10 states have call successors, (30), 9 states have call predecessors, (30), 10 states have return successors, (30), 7 states have call predecessors, (30), 10 states have call successors, (30) Word has length 110 [2024-11-09 01:08:21,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:08:21,237 INFO L225 Difference]: With dead ends: 422 [2024-11-09 01:08:21,237 INFO L226 Difference]: Without dead ends: 224 [2024-11-09 01:08:21,239 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 421 GetRequests, 381 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 432 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=303, Invalid=1186, Unknown=5, NotChecked=228, Total=1722 [2024-11-09 01:08:21,240 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 272 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-09 01:08:21,240 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 301 Invalid, 655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-09 01:08:21,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2024-11-09 01:08:21,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 216. [2024-11-09 01:08:21,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 185 states have (on average 1.2) internal successors, (222), 185 states have internal predecessors, (222), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-09 01:08:21,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 270 transitions. [2024-11-09 01:08:21,274 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 270 transitions. Word has length 110 [2024-11-09 01:08:21,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:08:21,274 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 270 transitions. [2024-11-09 01:08:21,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 24 states have (on average 5.333333333333333) internal successors, (128), 24 states have internal predecessors, (128), 10 states have call successors, (30), 9 states have call predecessors, (30), 10 states have return successors, (30), 7 states have call predecessors, (30), 10 states have call successors, (30) [2024-11-09 01:08:21,275 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 270 transitions. [2024-11-09 01:08:21,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-09 01:08:21,276 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:08:21,276 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:08:21,291 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (35)] Ended with exit code 0 [2024-11-09 01:08:21,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 (34)] Forceful destruction successful, exit code 0 [2024-11-09 01:08:21,703 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2024-11-09 01:08:21,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:08:21,878 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:08:21,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:08:21,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1032774205, now seen corresponding path program 1 times [2024-11-09 01:08:21,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:08:21,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [192416035] [2024-11-09 01:08:21,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:08:21,879 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 01:08:21,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:08:21,880 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:08:21,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 (37)] Waiting until timeout for monitored process [2024-11-09 01:08:22,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:08:22,299 INFO L255 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-09 01:08:22,302 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:08:22,762 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 01:08:22,854 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-09 01:08:22,970 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 19 [2024-11-09 01:08:23,034 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 17 [2024-11-09 01:08:23,218 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:08:23,219 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 60 treesize of output 30 [2024-11-09 01:08:23,303 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 01:08:23,303 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:08:23,303 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:08:23,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [192416035] [2024-11-09 01:08:23,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [192416035] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:08:23,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:08:23,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 01:08:23,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193229526] [2024-11-09 01:08:23,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:08:23,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 01:08:23,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:08:23,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 01:08:23,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-09 01:08:23,306 INFO L87 Difference]: Start difference. First operand 216 states and 270 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 01:08:25,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:08:25,269 INFO L93 Difference]: Finished difference Result 425 states and 531 transitions. [2024-11-09 01:08:25,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 01:08:25,270 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 111 [2024-11-09 01:08:25,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:08:25,272 INFO L225 Difference]: With dead ends: 425 [2024-11-09 01:08:25,272 INFO L226 Difference]: Without dead ends: 299 [2024-11-09 01:08:25,272 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2024-11-09 01:08:25,273 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 164 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-09 01:08:25,273 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 507 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-09 01:08:25,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2024-11-09 01:08:25,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 257. [2024-11-09 01:08:25,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 226 states have (on average 1.1991150442477876) internal successors, (271), 226 states have internal predecessors, (271), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-09 01:08:25,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 319 transitions. [2024-11-09 01:08:25,299 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 319 transitions. Word has length 111 [2024-11-09 01:08:25,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:08:25,300 INFO L471 AbstractCegarLoop]: Abstraction has 257 states and 319 transitions. [2024-11-09 01:08:25,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 01:08:25,300 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 319 transitions. [2024-11-09 01:08:25,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-09 01:08:25,300 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:08:25,301 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:08:25,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 (37)] Forceful destruction successful, exit code 0 [2024-11-09 01:08:25,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:08:25,501 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:08:25,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:08:25,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1725477315, now seen corresponding path program 1 times [2024-11-09 01:08:25,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:08:25,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1676114165] [2024-11-09 01:08:25,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:08:25,502 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 01:08:25,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:08:25,503 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:08:25,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 (38)] Waiting until timeout for monitored process [2024-11-09 01:08:25,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:08:25,809 INFO L255 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 01:08:25,811 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:08:26,710 INFO L349 Elim1Store]: treesize reduction 3, result has 88.9 percent of original size [2024-11-09 01:08:26,711 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 90 treesize of output 63 [2024-11-09 01:08:26,876 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 01:08:26,876 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:08:26,876 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:08:26,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1676114165] [2024-11-09 01:08:26,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1676114165] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:08:26,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:08:26,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 01:08:26,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780415383] [2024-11-09 01:08:26,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:08:26,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 01:08:26,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:08:26,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 01:08:26,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-09 01:08:26,878 INFO L87 Difference]: Start difference. First operand 257 states and 319 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 01:08:29,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:08:29,087 INFO L93 Difference]: Finished difference Result 553 states and 685 transitions. [2024-11-09 01:08:29,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 01:08:29,093 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 112 [2024-11-09 01:08:29,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:08:29,096 INFO L225 Difference]: With dead ends: 553 [2024-11-09 01:08:29,096 INFO L226 Difference]: Without dead ends: 386 [2024-11-09 01:08:29,096 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-09 01:08:29,097 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 86 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-09 01:08:29,097 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 475 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-09 01:08:29,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2024-11-09 01:08:29,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 319. [2024-11-09 01:08:29,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 288 states have (on average 1.2118055555555556) internal successors, (349), 288 states have internal predecessors, (349), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-09 01:08:29,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 397 transitions. [2024-11-09 01:08:29,128 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 397 transitions. Word has length 112 [2024-11-09 01:08:29,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:08:29,129 INFO L471 AbstractCegarLoop]: Abstraction has 319 states and 397 transitions. [2024-11-09 01:08:29,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 01:08:29,129 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 397 transitions. [2024-11-09 01:08:29,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-09 01:08:29,131 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:08:29,132 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:08:29,140 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 (38)] Ended with exit code 0 [2024-11-09 01:08:29,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:08:29,332 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:08:29,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:08:29,333 INFO L85 PathProgramCache]: Analyzing trace with hash -398439307, now seen corresponding path program 1 times [2024-11-09 01:08:29,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:08:29,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1934454897] [2024-11-09 01:08:29,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:08:29,334 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 01:08:29,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:08:29,337 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:08:29,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:08:29,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:08:29,767 INFO L255 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-09 01:08:29,770 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:08:30,306 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 01:08:30,450 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 01:08:30,586 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 01:08:30,703 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 19 [2024-11-09 01:08:31,132 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-11-09 01:08:31,132 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:08:31,495 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 01:08:31,495 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:08:31,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1934454897] [2024-11-09 01:08:31,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1934454897] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 01:08:31,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 01:08:31,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 15 [2024-11-09 01:08:31,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567707305] [2024-11-09 01:08:31,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:08:31,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 01:08:31,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:08:31,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 01:08:31,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2024-11-09 01:08:31,498 INFO L87 Difference]: Start difference. First operand 319 states and 397 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 01:08:32,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:08:32,736 INFO L93 Difference]: Finished difference Result 341 states and 422 transitions. [2024-11-09 01:08:32,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 01:08:32,741 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 113 [2024-11-09 01:08:32,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:08:32,742 INFO L225 Difference]: With dead ends: 341 [2024-11-09 01:08:32,742 INFO L226 Difference]: Without dead ends: 339 [2024-11-09 01:08:32,743 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2024-11-09 01:08:32,743 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 24 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 01:08:32,743 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 610 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 01:08:32,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2024-11-09 01:08:32,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 322. [2024-11-09 01:08:32,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 291 states have (on average 1.2164948453608246) internal successors, (354), 291 states have internal predecessors, (354), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-09 01:08:32,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 402 transitions. [2024-11-09 01:08:32,771 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 402 transitions. Word has length 113 [2024-11-09 01:08:32,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:08:32,772 INFO L471 AbstractCegarLoop]: Abstraction has 322 states and 402 transitions. [2024-11-09 01:08:32,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 01:08:32,772 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 402 transitions. [2024-11-09 01:08:32,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-09 01:08:32,773 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:08:32,773 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:08:32,781 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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)] Ended with exit code 0 [2024-11-09 01:08:32,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:08:32,974 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:08:32,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:08:32,975 INFO L85 PathProgramCache]: Analyzing trace with hash 695889592, now seen corresponding path program 1 times [2024-11-09 01:08:32,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:08:32,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [924633050] [2024-11-09 01:08:32,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:08:32,976 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 01:08:32,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:08:32,980 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:08:32,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 (40)] Waiting until timeout for monitored process [2024-11-09 01:08:33,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:08:33,541 INFO L255 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-09 01:08:33,545 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:08:34,077 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 01:08:34,148 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-09 01:08:34,349 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:08:34,349 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2024-11-09 01:08:34,421 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-11-09 01:08:34,826 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:08:34,826 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 19 [2024-11-09 01:08:34,986 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-11-09 01:08:34,986 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:08:34,987 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:08:34,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [924633050] [2024-11-09 01:08:34,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [924633050] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:08:34,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:08:34,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 01:08:34,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370736689] [2024-11-09 01:08:34,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:08:34,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 01:08:34,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:08:34,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 01:08:34,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-09 01:08:34,989 INFO L87 Difference]: Start difference. First operand 322 states and 402 transitions. Second operand has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 11 states have internal predecessors, (59), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 01:08:38,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:08:38,732 INFO L93 Difference]: Finished difference Result 572 states and 707 transitions. [2024-11-09 01:08:38,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 01:08:38,733 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 11 states have internal predecessors, (59), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 113 [2024-11-09 01:08:38,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:08:38,735 INFO L225 Difference]: With dead ends: 572 [2024-11-09 01:08:38,735 INFO L226 Difference]: Without dead ends: 402 [2024-11-09 01:08:38,736 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=88, Invalid=332, Unknown=0, NotChecked=0, Total=420 [2024-11-09 01:08:38,737 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 139 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 711 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-09 01:08:38,737 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 612 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 711 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-09 01:08:38,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2024-11-09 01:08:38,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 344. [2024-11-09 01:08:38,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 309 states have (on average 1.2135922330097086) internal successors, (375), 309 states have internal predecessors, (375), 24 states have call successors, (24), 10 states have call predecessors, (24), 10 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-09 01:08:38,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 423 transitions. [2024-11-09 01:08:38,776 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 423 transitions. Word has length 113 [2024-11-09 01:08:38,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:08:38,776 INFO L471 AbstractCegarLoop]: Abstraction has 344 states and 423 transitions. [2024-11-09 01:08:38,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 11 states have internal predecessors, (59), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 01:08:38,777 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 423 transitions. [2024-11-09 01:08:38,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-09 01:08:38,778 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:08:38,778 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:08:38,793 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 (40)] Ended with exit code 0 [2024-11-09 01:08:38,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:08:38,979 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:08:38,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:08:38,979 INFO L85 PathProgramCache]: Analyzing trace with hash 302862582, now seen corresponding path program 1 times [2024-11-09 01:08:38,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:08:38,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1656870625] [2024-11-09 01:08:38,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:08:38,980 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:08:38,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:08:38,981 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:08:38,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 (41)] Waiting until timeout for monitored process [2024-11-09 01:08:39,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:08:39,361 INFO L255 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-09 01:08:39,364 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:08:40,234 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 01:08:40,703 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 01:08:41,019 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 01:08:41,605 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 41 [2024-11-09 01:08:41,617 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 143 proven. 15 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-09 01:08:41,617 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:08:41,888 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:08:41,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1656870625] [2024-11-09 01:08:41,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1656870625] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:08:41,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1678263232] [2024-11-09 01:08:41,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:08:41,889 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 01:08:41,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 01:08:41,890 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 01:08:41,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (42)] Waiting until timeout for monitored process [2024-11-09 01:08:42,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:08:42,863 INFO L255 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-09 01:08:42,866 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:08:43,052 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 28 treesize of output 12 [2024-11-09 01:08:44,275 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2024-11-09 01:08:45,307 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 19 [2024-11-09 01:08:45,821 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 26 treesize of output 19 [2024-11-09 01:08:46,796 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 45 [2024-11-09 01:08:46,803 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 149 proven. 15 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-09 01:08:46,804 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:08:47,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1678263232] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:08:47,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1132875160] [2024-11-09 01:08:47,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:08:47,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:08:47,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:08:47,757 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:08:47,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2024-11-09 01:08:48,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:08:48,041 INFO L255 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-09 01:08:48,045 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:08:48,791 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-09 01:08:49,771 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 23 [2024-11-09 01:08:50,090 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 30 treesize of output 23 [2024-11-09 01:08:50,849 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 149 proven. 15 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-09 01:08:50,849 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:08:50,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1132875160] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:08:50,938 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:08:50,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 10] total 27 [2024-11-09 01:08:50,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756533994] [2024-11-09 01:08:50,939 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 01:08:50,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-09 01:08:50,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:08:50,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-09 01:08:50,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=1134, Unknown=11, NotChecked=0, Total=1332 [2024-11-09 01:08:50,943 INFO L87 Difference]: Start difference. First operand 344 states and 423 transitions. Second operand has 28 states, 25 states have (on average 5.28) internal successors, (132), 25 states have internal predecessors, (132), 9 states have call successors, (36), 8 states have call predecessors, (36), 9 states have return successors, (36), 6 states have call predecessors, (36), 9 states have call successors, (36) [2024-11-09 01:08:56,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:08:56,614 INFO L93 Difference]: Finished difference Result 584 states and 717 transitions. [2024-11-09 01:08:56,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-09 01:08:56,614 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 25 states have (on average 5.28) internal successors, (132), 25 states have internal predecessors, (132), 9 states have call successors, (36), 8 states have call predecessors, (36), 9 states have return successors, (36), 6 states have call predecessors, (36), 9 states have call successors, (36) Word has length 113 [2024-11-09 01:08:56,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:08:56,616 INFO L225 Difference]: With dead ends: 584 [2024-11-09 01:08:56,616 INFO L226 Difference]: Without dead ends: 366 [2024-11-09 01:08:56,616 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 397 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 565 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=301, Invalid=1668, Unknown=11, NotChecked=0, Total=1980 [2024-11-09 01:08:56,617 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 236 mSDsluCounter, 674 mSDsCounter, 0 mSdLazyCounter, 1223 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 1258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-09 01:08:56,617 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 731 Invalid, 1258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1223 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-09 01:08:56,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2024-11-09 01:08:56,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 317. [2024-11-09 01:08:56,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 282 states have (on average 1.2056737588652482) internal successors, (340), 282 states have internal predecessors, (340), 24 states have call successors, (24), 10 states have call predecessors, (24), 10 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-09 01:08:56,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 388 transitions. [2024-11-09 01:08:56,651 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 388 transitions. Word has length 113 [2024-11-09 01:08:56,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:08:56,652 INFO L471 AbstractCegarLoop]: Abstraction has 317 states and 388 transitions. [2024-11-09 01:08:56,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 25 states have (on average 5.28) internal successors, (132), 25 states have internal predecessors, (132), 9 states have call successors, (36), 8 states have call predecessors, (36), 9 states have return successors, (36), 6 states have call predecessors, (36), 9 states have call successors, (36) [2024-11-09 01:08:56,652 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 388 transitions. [2024-11-09 01:08:56,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-09 01:08:56,653 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:08:56,653 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:08:56,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (42)] Forceful destruction successful, exit code 0 [2024-11-09 01:08:56,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 (41)] Forceful destruction successful, exit code 0 [2024-11-09 01:08:57,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2024-11-09 01:08:57,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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=3,43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:08:57,254 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:08:57,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:08:57,255 INFO L85 PathProgramCache]: Analyzing trace with hash 1777839746, now seen corresponding path program 1 times [2024-11-09 01:08:57,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:08:57,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1726303850] [2024-11-09 01:08:57,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:08:57,255 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 01:08:57,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:08:57,257 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:08:57,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 (44)] Waiting until timeout for monitored process [2024-11-09 01:08:57,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:08:57,732 INFO L255 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-09 01:08:57,737 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:08:58,318 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 01:08:58,435 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-09 01:08:58,797 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:08:58,798 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2024-11-09 01:08:58,907 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 27 [2024-11-09 01:08:59,256 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:08:59,257 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 72 treesize of output 36 [2024-11-09 01:08:59,388 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-11-09 01:08:59,389 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:08:59,389 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:08:59,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1726303850] [2024-11-09 01:08:59,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1726303850] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:08:59,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:08:59,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-09 01:08:59,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835829542] [2024-11-09 01:08:59,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:08:59,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 01:08:59,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:08:59,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 01:08:59,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-09 01:08:59,392 INFO L87 Difference]: Start difference. First operand 317 states and 388 transitions. Second operand has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 10 states have internal predecessors, (59), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 01:09:03,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:09:03,034 INFO L93 Difference]: Finished difference Result 633 states and 777 transitions. [2024-11-09 01:09:03,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 01:09:03,040 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 10 states have internal predecessors, (59), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 113 [2024-11-09 01:09:03,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:09:03,047 INFO L225 Difference]: With dead ends: 633 [2024-11-09 01:09:03,047 INFO L226 Difference]: Without dead ends: 451 [2024-11-09 01:09:03,048 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2024-11-09 01:09:03,050 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 126 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-09 01:09:03,054 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 546 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-09 01:09:03,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2024-11-09 01:09:03,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 383. [2024-11-09 01:09:03,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 348 states have (on average 1.206896551724138) internal successors, (420), 348 states have internal predecessors, (420), 24 states have call successors, (24), 10 states have call predecessors, (24), 10 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-09 01:09:03,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 468 transitions. [2024-11-09 01:09:03,110 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 468 transitions. Word has length 113 [2024-11-09 01:09:03,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:09:03,110 INFO L471 AbstractCegarLoop]: Abstraction has 383 states and 468 transitions. [2024-11-09 01:09:03,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 10 states have internal predecessors, (59), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 01:09:03,111 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 468 transitions. [2024-11-09 01:09:03,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-09 01:09:03,113 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:09:03,114 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:09:03,124 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 (44)] Ended with exit code 0 [2024-11-09 01:09:03,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:09:03,315 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:09:03,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:09:03,315 INFO L85 PathProgramCache]: Analyzing trace with hash -593899516, now seen corresponding path program 1 times [2024-11-09 01:09:03,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:09:03,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1898479577] [2024-11-09 01:09:03,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:09:03,316 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 01:09:03,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:09:03,318 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:09:03,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 (45)] Waiting until timeout for monitored process [2024-11-09 01:09:03,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:09:03,775 INFO L255 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-09 01:09:03,778 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:09:04,719 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 01:09:05,216 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 01:09:05,572 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2024-11-09 01:09:06,234 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 22 [2024-11-09 01:09:06,343 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 22 [2024-11-09 01:09:06,708 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:09:06,709 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 39 treesize of output 19 [2024-11-09 01:09:06,808 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 143 proven. 15 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-09 01:09:06,808 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:09:07,657 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_896 (Array (_ BitVec 32) (_ BitVec 32))) (~last_1_unsigned_char_Array_0_2_~0 (_ BitVec 8))) (bvugt (let ((.cse0 (select (store |c_#memory_int| |c_~#unsigned_long_int_Array_0~0.base| v_ArrVal_896) |c_~#signed_short_int_Array_0~0.base|))) (bvadd ((_ zero_extend 24) ~last_1_unsigned_char_Array_0_2_~0) (bvneg ((_ sign_extend 16) ((_ extract 15 0) (select .cse0 |c_~#signed_short_int_Array_0~0.offset|)))) ((_ sign_extend 16) ((_ extract 15 0) (select .cse0 (bvadd |c_~#signed_short_int_Array_0~0.offset| (_ bv2 32))))))) c_~last_1_unsigned_long_int_Array_0_0_~0)) is different from false [2024-11-09 01:09:07,691 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_895 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_896 (Array (_ BitVec 32) (_ BitVec 32))) (~last_1_unsigned_char_Array_0_2_~0 (_ BitVec 8))) (bvugt (let ((.cse0 (select (store (store |c_#memory_int| |c_~#unsigned_char_Array_0~0.base| v_ArrVal_895) |c_~#unsigned_long_int_Array_0~0.base| v_ArrVal_896) |c_~#signed_short_int_Array_0~0.base|))) (bvadd ((_ zero_extend 24) ~last_1_unsigned_char_Array_0_2_~0) ((_ sign_extend 16) ((_ extract 15 0) (select .cse0 (bvadd |c_~#signed_short_int_Array_0~0.offset| (_ bv2 32))))) (bvneg ((_ sign_extend 16) ((_ extract 15 0) (select .cse0 |c_~#signed_short_int_Array_0~0.offset|)))))) c_~last_1_unsigned_long_int_Array_0_0_~0)) is different from false [2024-11-09 01:09:17,274 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:09:17,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1898479577] [2024-11-09 01:09:17,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1898479577] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:09:17,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1599475522] [2024-11-09 01:09:17,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:09:17,274 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 01:09:17,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 01:09:17,276 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 01:09:17,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (46)] Waiting until timeout for monitored process [2024-11-09 01:09:18,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:09:18,311 INFO L255 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-09 01:09:18,314 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:09:18,539 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 28 treesize of output 12 [2024-11-09 01:09:19,809 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2024-11-09 01:09:20,918 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 19 [2024-11-09 01:09:21,421 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 19 [2024-11-09 01:09:22,175 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 19 [2024-11-09 01:09:22,362 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 19 [2024-11-09 01:09:23,042 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 23 [2024-11-09 01:09:23,178 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 149 proven. 15 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-09 01:09:23,178 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:09:26,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1599475522] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:09:26,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1305305808] [2024-11-09 01:09:26,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:09:26,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:09:26,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:09:26,057 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:09:26,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2024-11-09 01:09:26,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:09:26,386 INFO L255 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-09 01:09:26,389 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:09:27,154 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-09 01:09:27,460 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 01:09:27,779 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 20 treesize of output 15 [2024-11-09 01:09:28,248 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 01:09:28,419 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2024-11-09 01:09:28,907 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:09:28,907 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 19 [2024-11-09 01:09:28,979 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 143 proven. 15 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-09 01:09:28,979 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:10:14,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1305305808] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:10:14,894 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:10:14,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 11] total 26 [2024-11-09 01:10:14,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413629350] [2024-11-09 01:10:14,895 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 01:10:14,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-09 01:10:14,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:10:14,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-09 01:10:14,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=1299, Unknown=57, NotChecked=154, Total=1722 [2024-11-09 01:10:14,897 INFO L87 Difference]: Start difference. First operand 383 states and 468 transitions. Second operand has 27 states, 25 states have (on average 5.48) internal successors, (137), 25 states have internal predecessors, (137), 6 states have call successors, (24), 5 states have call predecessors, (24), 6 states have return successors, (24), 4 states have call predecessors, (24), 6 states have call successors, (24) [2024-11-09 01:10:21,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:10:21,979 INFO L93 Difference]: Finished difference Result 697 states and 851 transitions. [2024-11-09 01:10:21,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-09 01:10:21,980 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 25 states have (on average 5.48) internal successors, (137), 25 states have internal predecessors, (137), 6 states have call successors, (24), 5 states have call predecessors, (24), 6 states have return successors, (24), 4 states have call predecessors, (24), 6 states have call successors, (24) Word has length 113 [2024-11-09 01:10:21,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:10:21,982 INFO L225 Difference]: With dead ends: 697 [2024-11-09 01:10:21,982 INFO L226 Difference]: Without dead ends: 466 [2024-11-09 01:10:21,984 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 445 GetRequests, 391 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 717 ImplicationChecksByTransitivity, 61.7s TimeCoverageRelationStatistics Valid=478, Invalid=2229, Unknown=57, NotChecked=206, Total=2970 [2024-11-09 01:10:21,985 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 332 mSDsluCounter, 830 mSDsCounter, 0 mSdLazyCounter, 1420 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 906 SdHoareTripleChecker+Invalid, 1452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2024-11-09 01:10:21,986 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [335 Valid, 906 Invalid, 1452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1420 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2024-11-09 01:10:21,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2024-11-09 01:10:22,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 372. [2024-11-09 01:10:22,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 337 states have (on average 1.1899109792284865) internal successors, (401), 337 states have internal predecessors, (401), 24 states have call successors, (24), 10 states have call predecessors, (24), 10 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-09 01:10:22,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 449 transitions. [2024-11-09 01:10:22,031 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 449 transitions. Word has length 113 [2024-11-09 01:10:22,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:10:22,032 INFO L471 AbstractCegarLoop]: Abstraction has 372 states and 449 transitions. [2024-11-09 01:10:22,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 25 states have (on average 5.48) internal successors, (137), 25 states have internal predecessors, (137), 6 states have call successors, (24), 5 states have call predecessors, (24), 6 states have return successors, (24), 4 states have call predecessors, (24), 6 states have call successors, (24) [2024-11-09 01:10:22,032 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 449 transitions. [2024-11-09 01:10:22,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-09 01:10:22,033 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:10:22,034 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:10:22,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (46)] Forceful destruction successful, exit code 0 [2024-11-09 01:10:22,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Forceful destruction successful, exit code 0 [2024-11-09 01:10:22,441 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 (45)] Forceful destruction successful, exit code 0 [2024-11-09 01:10:22,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:10:22,635 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:10:22,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:10:22,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1168304273, now seen corresponding path program 1 times [2024-11-09 01:10:22,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:10:22,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [754804941] [2024-11-09 01:10:22,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:10:22,636 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 01:10:22,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:10:22,640 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:10:22,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 (48)] Waiting until timeout for monitored process [2024-11-09 01:10:23,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:10:23,012 INFO L255 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 01:10:23,014 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:10:23,311 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 01:10:23,311 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:10:23,311 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:10:23,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [754804941] [2024-11-09 01:10:23,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [754804941] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:10:23,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:10:23,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 01:10:23,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940891816] [2024-11-09 01:10:23,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:10:23,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 01:10:23,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:10:23,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 01:10:23,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 01:10:23,314 INFO L87 Difference]: Start difference. First operand 372 states and 449 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 01:10:24,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:10:24,804 INFO L93 Difference]: Finished difference Result 739 states and 894 transitions. [2024-11-09 01:10:24,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 01:10:24,810 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 115 [2024-11-09 01:10:24,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:10:24,811 INFO L225 Difference]: With dead ends: 739 [2024-11-09 01:10:24,812 INFO L226 Difference]: Without dead ends: 517 [2024-11-09 01:10:24,812 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 01:10:24,813 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 23 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 01:10:24,814 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 394 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 01:10:24,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2024-11-09 01:10:24,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 501. [2024-11-09 01:10:24,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 466 states have (on average 1.1866952789699572) internal successors, (553), 466 states have internal predecessors, (553), 24 states have call successors, (24), 10 states have call predecessors, (24), 10 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-09 01:10:24,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 601 transitions. [2024-11-09 01:10:24,862 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 601 transitions. Word has length 115 [2024-11-09 01:10:24,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:10:24,862 INFO L471 AbstractCegarLoop]: Abstraction has 501 states and 601 transitions. [2024-11-09 01:10:24,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 01:10:24,863 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 601 transitions. [2024-11-09 01:10:24,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-09 01:10:24,864 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:10:24,864 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:10:24,874 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 (48)] Ended with exit code 0 [2024-11-09 01:10:25,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:10:25,065 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:10:25,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:10:25,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1677777363, now seen corresponding path program 1 times [2024-11-09 01:10:25,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:10:25,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [752368413] [2024-11-09 01:10:25,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:10:25,066 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 01:10:25,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:10:25,068 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:10:25,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 (49)] Waiting until timeout for monitored process [2024-11-09 01:10:25,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:10:25,416 INFO L255 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 01:10:25,432 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:10:25,619 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 01:10:25,619 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:10:25,619 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:10:25,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [752368413] [2024-11-09 01:10:25,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [752368413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:10:25,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:10:25,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 01:10:25,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300933163] [2024-11-09 01:10:25,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:10:25,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 01:10:25,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:10:25,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 01:10:25,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 01:10:25,621 INFO L87 Difference]: Start difference. First operand 501 states and 601 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 01:10:26,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:10:26,718 INFO L93 Difference]: Finished difference Result 844 states and 1012 transitions. [2024-11-09 01:10:26,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 01:10:26,723 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 115 [2024-11-09 01:10:26,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:10:26,725 INFO L225 Difference]: With dead ends: 844 [2024-11-09 01:10:26,726 INFO L226 Difference]: Without dead ends: 515 [2024-11-09 01:10:26,726 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-09 01:10:26,727 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 26 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 01:10:26,727 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 389 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 01:10:26,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2024-11-09 01:10:26,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 499. [2024-11-09 01:10:26,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 464 states have (on average 1.1724137931034482) internal successors, (544), 464 states have internal predecessors, (544), 24 states have call successors, (24), 10 states have call predecessors, (24), 10 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-09 01:10:26,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 592 transitions. [2024-11-09 01:10:26,772 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 592 transitions. Word has length 115 [2024-11-09 01:10:26,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:10:26,772 INFO L471 AbstractCegarLoop]: Abstraction has 499 states and 592 transitions. [2024-11-09 01:10:26,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 01:10:26,773 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 592 transitions. [2024-11-09 01:10:26,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-09 01:10:26,774 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:10:26,774 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:10:26,783 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 (49)] Ended with exit code 0 [2024-11-09 01:10:26,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:10:26,975 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:10:26,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:10:26,975 INFO L85 PathProgramCache]: Analyzing trace with hash -555663939, now seen corresponding path program 1 times [2024-11-09 01:10:26,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:10:26,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1226152003] [2024-11-09 01:10:26,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:10:26,976 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 01:10:26,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:10:26,977 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:10:26,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 (50)] Waiting until timeout for monitored process [2024-11-09 01:10:27,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:10:27,368 INFO L255 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-09 01:10:27,371 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:10:27,789 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 01:10:27,878 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-09 01:10:28,029 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2024-11-09 01:10:28,084 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 19 [2024-11-09 01:10:28,289 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:10:28,290 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 17 [2024-11-09 01:10:28,434 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 01:10:28,434 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:10:28,435 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:10:28,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1226152003] [2024-11-09 01:10:28,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1226152003] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:10:28,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:10:28,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 01:10:28,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016085650] [2024-11-09 01:10:28,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:10:28,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 01:10:28,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:10:28,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 01:10:28,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-09 01:10:28,437 INFO L87 Difference]: Start difference. First operand 499 states and 592 transitions. Second operand has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 01:10:31,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:10:31,851 INFO L93 Difference]: Finished difference Result 946 states and 1129 transitions. [2024-11-09 01:10:31,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 01:10:31,852 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 115 [2024-11-09 01:10:31,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:10:31,854 INFO L225 Difference]: With dead ends: 946 [2024-11-09 01:10:31,854 INFO L226 Difference]: Without dead ends: 648 [2024-11-09 01:10:31,855 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2024-11-09 01:10:31,856 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 117 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 688 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-09 01:10:31,856 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 688 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-09 01:10:31,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 648 states. [2024-11-09 01:10:31,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 648 to 506. [2024-11-09 01:10:31,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 471 states have (on average 1.1613588110403397) internal successors, (547), 471 states have internal predecessors, (547), 24 states have call successors, (24), 10 states have call predecessors, (24), 10 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-09 01:10:31,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 595 transitions. [2024-11-09 01:10:31,926 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 595 transitions. Word has length 115 [2024-11-09 01:10:31,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:10:31,926 INFO L471 AbstractCegarLoop]: Abstraction has 506 states and 595 transitions. [2024-11-09 01:10:31,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 01:10:31,927 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 595 transitions. [2024-11-09 01:10:31,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-09 01:10:31,928 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:10:31,929 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:10:31,941 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 (50)] Ended with exit code 0 [2024-11-09 01:10:32,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:10:32,129 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:10:32,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:10:32,130 INFO L85 PathProgramCache]: Analyzing trace with hash -948690949, now seen corresponding path program 1 times [2024-11-09 01:10:32,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:10:32,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [92171187] [2024-11-09 01:10:32,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:10:32,131 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 01:10:32,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:10:32,132 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:10:32,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 (51)] Waiting until timeout for monitored process [2024-11-09 01:10:32,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:10:32,755 INFO L255 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-09 01:10:32,759 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:10:33,206 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2024-11-09 01:10:33,379 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 12 [2024-11-09 01:10:33,672 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:10:33,672 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 39 [2024-11-09 01:10:33,788 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 33 [2024-11-09 01:10:34,147 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:10:34,148 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 26 [2024-11-09 01:10:34,195 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-09 01:10:34,195 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:10:34,195 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:10:34,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [92171187] [2024-11-09 01:10:34,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [92171187] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:10:34,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:10:34,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 01:10:34,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368131416] [2024-11-09 01:10:34,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:10:34,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 01:10:34,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:10:34,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 01:10:34,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-09 01:10:34,197 INFO L87 Difference]: Start difference. First operand 506 states and 595 transitions. Second operand has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 01:10:36,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:10:36,722 INFO L93 Difference]: Finished difference Result 872 states and 1034 transitions. [2024-11-09 01:10:36,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 01:10:36,724 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 115 [2024-11-09 01:10:36,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:10:36,725 INFO L225 Difference]: With dead ends: 872 [2024-11-09 01:10:36,725 INFO L226 Difference]: Without dead ends: 622 [2024-11-09 01:10:36,726 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-09 01:10:36,727 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 189 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-09 01:10:36,727 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 313 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-09 01:10:36,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2024-11-09 01:10:36,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 577. [2024-11-09 01:10:36,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 540 states have (on average 1.1574074074074074) internal successors, (625), 540 states have internal predecessors, (625), 24 states have call successors, (24), 12 states have call predecessors, (24), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-09 01:10:36,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 673 transitions. [2024-11-09 01:10:36,788 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 673 transitions. Word has length 115 [2024-11-09 01:10:36,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:10:36,788 INFO L471 AbstractCegarLoop]: Abstraction has 577 states and 673 transitions. [2024-11-09 01:10:36,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 01:10:36,789 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 673 transitions. [2024-11-09 01:10:36,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-09 01:10:36,791 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:10:36,791 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:10:36,800 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 (51)] Ended with exit code 0 [2024-11-09 01:10:36,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:10:36,992 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:10:36,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:10:36,993 INFO L85 PathProgramCache]: Analyzing trace with hash 830539455, now seen corresponding path program 1 times [2024-11-09 01:10:36,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:10:36,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1134927413] [2024-11-09 01:10:36,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:10:36,993 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 01:10:36,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:10:36,994 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:10:36,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 (52)] Waiting until timeout for monitored process [2024-11-09 01:10:37,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:10:37,601 INFO L255 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-09 01:10:37,605 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:10:38,088 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 01:10:38,177 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-09 01:10:38,709 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:10:38,710 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 45 [2024-11-09 01:10:38,856 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 59 treesize of output 46 [2024-11-09 01:10:39,271 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:10:39,271 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 31 [2024-11-09 01:10:39,344 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2024-11-09 01:10:39,344 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:10:39,344 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:10:39,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1134927413] [2024-11-09 01:10:39,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1134927413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:10:39,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:10:39,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 01:10:39,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329178607] [2024-11-09 01:10:39,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:10:39,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 01:10:39,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:10:39,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 01:10:39,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-11-09 01:10:39,346 INFO L87 Difference]: Start difference. First operand 577 states and 673 transitions. Second operand has 13 states, 12 states have (on average 5.333333333333333) internal successors, (64), 12 states have internal predecessors, (64), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-09 01:10:42,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:10:42,803 INFO L93 Difference]: Finished difference Result 1013 states and 1197 transitions. [2024-11-09 01:10:42,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 01:10:42,804 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.333333333333333) internal successors, (64), 12 states have internal predecessors, (64), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 115 [2024-11-09 01:10:42,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:10:42,807 INFO L225 Difference]: With dead ends: 1013 [2024-11-09 01:10:42,807 INFO L226 Difference]: Without dead ends: 696 [2024-11-09 01:10:42,808 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2024-11-09 01:10:42,808 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 150 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-09 01:10:42,808 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 447 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-09 01:10:42,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2024-11-09 01:10:42,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 640. [2024-11-09 01:10:42,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 603 states have (on average 1.1558872305140961) internal successors, (697), 603 states have internal predecessors, (697), 24 states have call successors, (24), 12 states have call predecessors, (24), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-09 01:10:42,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 745 transitions. [2024-11-09 01:10:42,851 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 745 transitions. Word has length 115 [2024-11-09 01:10:42,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:10:42,851 INFO L471 AbstractCegarLoop]: Abstraction has 640 states and 745 transitions. [2024-11-09 01:10:42,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.333333333333333) internal successors, (64), 12 states have internal predecessors, (64), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-09 01:10:42,852 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 745 transitions. [2024-11-09 01:10:42,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-09 01:10:42,853 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:10:42,853 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:10:42,864 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 (52)] Ended with exit code 0 [2024-11-09 01:10:43,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:10:43,058 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:10:43,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:10:43,058 INFO L85 PathProgramCache]: Analyzing trace with hash 437512445, now seen corresponding path program 1 times [2024-11-09 01:10:43,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:10:43,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1160427482] [2024-11-09 01:10:43,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:10:43,059 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 01:10:43,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:10:43,063 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:10:43,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 (53)] Waiting until timeout for monitored process [2024-11-09 01:10:43,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:10:43,479 INFO L255 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-09 01:10:43,482 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:10:44,042 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-09 01:10:44,173 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2024-11-09 01:10:44,223 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 21 [2024-11-09 01:10:44,412 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:10:44,412 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 41 treesize of output 17 [2024-11-09 01:10:44,598 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 01:10:44,598 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:10:44,599 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:10:44,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1160427482] [2024-11-09 01:10:44,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1160427482] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:10:44,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:10:44,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 01:10:44,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065184459] [2024-11-09 01:10:44,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:10:44,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 01:10:44,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:10:44,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 01:10:44,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-09 01:10:44,603 INFO L87 Difference]: Start difference. First operand 640 states and 745 transitions. Second operand has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 01:10:47,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:10:47,271 INFO L93 Difference]: Finished difference Result 1083 states and 1274 transitions. [2024-11-09 01:10:47,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 01:10:47,272 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 115 [2024-11-09 01:10:47,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:10:47,273 INFO L225 Difference]: With dead ends: 1083 [2024-11-09 01:10:47,273 INFO L226 Difference]: Without dead ends: 715 [2024-11-09 01:10:47,274 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2024-11-09 01:10:47,274 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 115 mSDsluCounter, 622 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-09 01:10:47,274 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 724 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 708 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-09 01:10:47,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2024-11-09 01:10:47,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 630. [2024-11-09 01:10:47,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 630 states, 593 states have (on average 1.1551433389544687) internal successors, (685), 593 states have internal predecessors, (685), 24 states have call successors, (24), 12 states have call predecessors, (24), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-09 01:10:47,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 733 transitions. [2024-11-09 01:10:47,331 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 733 transitions. Word has length 115 [2024-11-09 01:10:47,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:10:47,331 INFO L471 AbstractCegarLoop]: Abstraction has 630 states and 733 transitions. [2024-11-09 01:10:47,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 01:10:47,332 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 733 transitions. [2024-11-09 01:10:47,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-11-09 01:10:47,334 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:10:47,334 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:10:47,343 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 (53)] Ended with exit code 0 [2024-11-09 01:10:47,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:10:47,534 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:10:47,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:10:47,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1705690090, now seen corresponding path program 1 times [2024-11-09 01:10:47,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:10:47,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1303843307] [2024-11-09 01:10:47,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:10:47,536 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 01:10:47,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:10:47,537 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:10:47,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 (54)] Waiting until timeout for monitored process [2024-11-09 01:10:48,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:10:48,315 INFO L255 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-09 01:10:48,319 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:10:48,845 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 01:10:49,126 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2024-11-09 01:10:49,330 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2024-11-09 01:10:49,607 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 31 treesize of output 24 [2024-11-09 01:10:50,229 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 34 treesize of output 14 [2024-11-09 01:10:51,547 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 01:10:52,021 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 14 [2024-11-09 01:10:52,345 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 01:10:52,451 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 419 proven. 451 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-09 01:10:52,451 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:10:52,842 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:10:52,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1303843307] [2024-11-09 01:10:52,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1303843307] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:10:52,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [411501736] [2024-11-09 01:10:52,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:10:52,843 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 01:10:52,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 01:10:52,846 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 01:10:52,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (55)] Waiting until timeout for monitored process [2024-11-09 01:10:54,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:10:54,312 INFO L255 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-09 01:10:54,317 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:10:55,026 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2024-11-09 01:10:55,752 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 19 [2024-11-09 01:10:56,063 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 19 [2024-11-09 01:10:56,479 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 26 [2024-11-09 01:10:57,368 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 38 treesize of output 18 [2024-11-09 01:10:58,835 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 01:10:59,112 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 01:10:59,786 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 14 [2024-11-09 01:11:00,218 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 01:11:00,315 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 415 proven. 461 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2024-11-09 01:11:00,315 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:11:00,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [411501736] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:11:00,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2106440261] [2024-11-09 01:11:00,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:11:00,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:11:00,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:11:00,477 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:11:00,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2024-11-09 01:11:00,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:11:00,921 INFO L255 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 01:11:00,923 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:11:02,262 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 14 [2024-11-09 01:11:02,568 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 9 proven. 14 refuted. 0 times theorem prover too weak. 1137 trivial. 0 not checked. [2024-11-09 01:11:02,568 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:11:02,794 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2024-11-09 01:11:02,799 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2024-11-09 01:11:03,290 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 6 proven. 17 refuted. 0 times theorem prover too weak. 1137 trivial. 0 not checked. [2024-11-09 01:11:03,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2106440261] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:11:03,290 INFO L185 FreeRefinementEngine]: Found 0 perfect and 4 imperfect interpolant sequences. [2024-11-09 01:11:03,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14, 6, 7] total 36 [2024-11-09 01:11:03,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519386510] [2024-11-09 01:11:03,291 INFO L85 oduleStraightlineAll]: Using 4 imperfect interpolants to construct interpolant automaton [2024-11-09 01:11:03,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-09 01:11:03,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:11:03,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-09 01:11:03,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=1172, Unknown=4, NotChecked=0, Total=1406 [2024-11-09 01:11:03,295 INFO L87 Difference]: Start difference. First operand 630 states and 733 transitions. Second operand has 36 states, 34 states have (on average 10.470588235294118) internal successors, (356), 35 states have internal predecessors, (356), 12 states have call successors, (72), 11 states have call predecessors, (72), 12 states have return successors, (72), 10 states have call predecessors, (72), 12 states have call successors, (72) [2024-11-09 01:11:18,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:11:18,291 INFO L93 Difference]: Finished difference Result 1482 states and 1733 transitions. [2024-11-09 01:11:18,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-09 01:11:18,292 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 34 states have (on average 10.470588235294118) internal successors, (356), 35 states have internal predecessors, (356), 12 states have call successors, (72), 11 states have call predecessors, (72), 12 states have return successors, (72), 10 states have call predecessors, (72), 12 states have call successors, (72) Word has length 217 [2024-11-09 01:11:18,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:11:18,294 INFO L225 Difference]: With dead ends: 1482 [2024-11-09 01:11:18,294 INFO L226 Difference]: Without dead ends: 1114 [2024-11-09 01:11:18,296 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 954 GetRequests, 885 SyntacticMatches, 3 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1409 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=794, Invalid=3758, Unknown=4, NotChecked=0, Total=4556 [2024-11-09 01:11:18,296 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 1038 mSDsluCounter, 1138 mSDsCounter, 0 mSdLazyCounter, 2523 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1041 SdHoareTripleChecker+Valid, 1246 SdHoareTripleChecker+Invalid, 2555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 2523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2024-11-09 01:11:18,296 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1041 Valid, 1246 Invalid, 2555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 2523 Invalid, 0 Unknown, 0 Unchecked, 11.4s Time] [2024-11-09 01:11:18,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1114 states. [2024-11-09 01:11:18,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1114 to 610. [2024-11-09 01:11:18,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 610 states, 573 states have (on average 1.1448516579406631) internal successors, (656), 573 states have internal predecessors, (656), 24 states have call successors, (24), 12 states have call predecessors, (24), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-09 01:11:18,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 704 transitions. [2024-11-09 01:11:18,350 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 704 transitions. Word has length 217 [2024-11-09 01:11:18,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:11:18,351 INFO L471 AbstractCegarLoop]: Abstraction has 610 states and 704 transitions. [2024-11-09 01:11:18,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 34 states have (on average 10.470588235294118) internal successors, (356), 35 states have internal predecessors, (356), 12 states have call successors, (72), 11 states have call predecessors, (72), 12 states have return successors, (72), 10 states have call predecessors, (72), 12 states have call successors, (72) [2024-11-09 01:11:18,351 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 704 transitions. [2024-11-09 01:11:18,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2024-11-09 01:11:18,353 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:11:18,353 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:11:18,382 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Forceful destruction successful, exit code 0 [2024-11-09 01:11:18,561 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (55)] Forceful destruction successful, exit code 0 [2024-11-09 01:11:18,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 (54)] Forceful destruction successful, exit code 0 [2024-11-09 01:11:18,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:11:18,954 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:11:18,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:11:18,955 INFO L85 PathProgramCache]: Analyzing trace with hash 82987694, now seen corresponding path program 1 times [2024-11-09 01:11:18,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:11:18,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1335330886] [2024-11-09 01:11:18,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:11:18,956 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:11:18,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:11:18,957 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:11:18,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 (57)] Waiting until timeout for monitored process [2024-11-09 01:11:19,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:11:19,465 INFO L255 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 01:11:19,469 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:11:20,690 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:11:20,690 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 90 treesize of output 66 [2024-11-09 01:11:21,152 INFO L134 CoverageAnalysis]: Checked inductivity of 1162 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 1139 trivial. 0 not checked. [2024-11-09 01:11:21,152 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:11:21,153 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:11:21,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1335330886] [2024-11-09 01:11:21,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1335330886] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:11:21,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:11:21,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 01:11:21,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858389082] [2024-11-09 01:11:21,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:11:21,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 01:11:21,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:11:21,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 01:11:21,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 01:11:21,155 INFO L87 Difference]: Start difference. First operand 610 states and 704 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 01:11:24,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:11:24,821 INFO L93 Difference]: Finished difference Result 984 states and 1143 transitions. [2024-11-09 01:11:24,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 01:11:24,824 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 219 [2024-11-09 01:11:24,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:11:24,826 INFO L225 Difference]: With dead ends: 984 [2024-11-09 01:11:24,826 INFO L226 Difference]: Without dead ends: 622 [2024-11-09 01:11:24,827 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 01:11:24,827 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 24 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-09 01:11:24,827 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 382 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-09 01:11:24,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2024-11-09 01:11:24,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 550. [2024-11-09 01:11:24,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 513 states have (on average 1.1481481481481481) internal successors, (589), 513 states have internal predecessors, (589), 24 states have call successors, (24), 12 states have call predecessors, (24), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-09 01:11:24,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 637 transitions. [2024-11-09 01:11:24,875 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 637 transitions. Word has length 219 [2024-11-09 01:11:24,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:11:24,876 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 637 transitions. [2024-11-09 01:11:24,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 01:11:24,876 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 637 transitions. [2024-11-09 01:11:24,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-11-09 01:11:24,878 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:11:24,878 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:11:24,889 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 (57)] Ended with exit code 0 [2024-11-09 01:11:25,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:11:25,079 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:11:25,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:11:25,079 INFO L85 PathProgramCache]: Analyzing trace with hash 530703013, now seen corresponding path program 1 times [2024-11-09 01:11:25,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:11:25,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [318799294] [2024-11-09 01:11:25,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:11:25,080 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 01:11:25,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:11:25,081 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:11:25,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 (58)] Waiting until timeout for monitored process [2024-11-09 01:11:25,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:11:25,823 INFO L255 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-09 01:11:25,828 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:11:26,559 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 01:11:26,781 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2024-11-09 01:11:27,080 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2024-11-09 01:11:27,706 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 34 treesize of output 14 [2024-11-09 01:11:28,680 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 01:11:28,908 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 01:11:29,133 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 01:11:29,591 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 25 [2024-11-09 01:11:29,744 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 25 [2024-11-09 01:11:30,297 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:11:30,298 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 42 treesize of output 22 [2024-11-09 01:11:30,597 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 469 proven. 321 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2024-11-09 01:11:30,597 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:11:31,979 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1243 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1244 (Array (_ BitVec 32) (_ BitVec 32))) (~last_1_unsigned_char_Array_0_2_~0 (_ BitVec 8))) (let ((.cse0 ((_ zero_extend 24) ~last_1_unsigned_char_Array_0_2_~0)) (.cse2 (bvadd |c_~#signed_short_int_Array_0~0.offset| (_ bv2 32)))) (or (not (bvugt (let ((.cse1 (select (store (store |c_#memory_int| |c_~#unsigned_char_Array_0~0.base| v_ArrVal_1243) |c_~#unsigned_long_int_Array_0~0.base| v_ArrVal_1244) |c_~#signed_short_int_Array_0~0.base|))) (bvadd .cse0 ((_ sign_extend 16) ((_ extract 15 0) (select .cse1 .cse2))) (bvneg ((_ sign_extend 16) ((_ extract 15 0) (select .cse1 |c_~#signed_short_int_Array_0~0.offset|)))))) c_~last_1_unsigned_long_int_Array_0_0_~0)) (bvugt (let ((.cse3 (select |c_#memory_int| |c_~#signed_short_int_Array_0~0.base|))) (bvadd .cse0 ((_ sign_extend 16) ((_ extract 15 0) (select .cse3 .cse2))) (bvneg ((_ sign_extend 16) ((_ extract 15 0) (select .cse3 |c_~#signed_short_int_Array_0~0.offset|)))))) |c_ULTIMATE.start_step_~stepLocal_2~0#1|)))) is different from false [2024-11-09 01:11:42,332 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:11:42,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [318799294] [2024-11-09 01:11:42,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [318799294] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:11:42,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1576203839] [2024-11-09 01:11:42,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:11:42,333 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 01:11:42,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 01:11:42,334 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 01:11:42,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (59)] Waiting until timeout for monitored process [2024-11-09 01:11:43,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:11:43,980 INFO L255 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-09 01:11:43,984 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:11:44,709 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 01:11:45,288 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 01:11:45,521 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 01:11:45,832 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 27 treesize of output 22 [2024-11-09 01:11:46,570 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 30 treesize of output 14 [2024-11-09 01:11:47,851 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 01:11:48,913 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 01:11:49,369 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 01:11:50,370 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 48 treesize of output 37 [2024-11-09 01:11:50,799 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 37 [2024-11-09 01:11:51,951 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 56 treesize of output 32 [2024-11-09 01:11:52,842 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 729 proven. 219 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2024-11-09 01:11:52,843 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:12:41,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1576203839] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:12:41,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609305869] [2024-11-09 01:12:41,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:12:41,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:12:41,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:12:41,079 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:12:41,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2024-11-09 01:12:42,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:12:42,921 INFO L255 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-09 01:12:42,926 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:12:43,442 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-09 01:12:44,976 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 23 [2024-11-09 01:12:45,288 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 23 [2024-11-09 01:12:45,704 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 28 [2024-11-09 01:12:46,698 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 28 treesize of output 14 [2024-11-09 01:12:49,892 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 18 [2024-11-09 01:12:51,642 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 38 treesize of output 29 [2024-11-09 01:12:52,191 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 29 [2024-11-09 01:12:53,673 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 48 [2024-11-09 01:12:54,134 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 48 [2024-11-09 01:12:55,607 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:12:55,608 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 71 treesize of output 37 [2024-11-09 01:12:57,126 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 614 proven. 378 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-09 01:12:57,127 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:13:46,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1609305869] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:13:46,324 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:13:46,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 18, 27] total 54 [2024-11-09 01:13:46,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355840698] [2024-11-09 01:13:46,325 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 01:13:46,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2024-11-09 01:13:46,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:13:46,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2024-11-09 01:13:46,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=497, Invalid=4148, Unknown=51, NotChecked=134, Total=4830 [2024-11-09 01:13:46,327 INFO L87 Difference]: Start difference. First operand 550 states and 637 transitions. Second operand has 55 states, 48 states have (on average 6.291666666666667) internal successors, (302), 51 states have internal predecessors, (302), 16 states have call successors, (62), 12 states have call predecessors, (62), 16 states have return successors, (62), 11 states have call predecessors, (62), 16 states have call successors, (62) [2024-11-09 01:14:28,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:14:28,318 INFO L93 Difference]: Finished difference Result 1350 states and 1563 transitions. [2024-11-09 01:14:28,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-11-09 01:14:28,319 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 48 states have (on average 6.291666666666667) internal successors, (302), 51 states have internal predecessors, (302), 16 states have call successors, (62), 12 states have call predecessors, (62), 16 states have return successors, (62), 11 states have call predecessors, (62), 16 states have call successors, (62) Word has length 220 [2024-11-09 01:14:28,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:14:28,321 INFO L225 Difference]: With dead ends: 1350 [2024-11-09 01:14:28,321 INFO L226 Difference]: Without dead ends: 989 [2024-11-09 01:14:28,324 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 796 GetRequests, 683 SyntacticMatches, 2 SemanticMatches, 111 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 4157 ImplicationChecksByTransitivity, 129.0s TimeCoverageRelationStatistics Valid=1504, Invalid=10881, Unknown=51, NotChecked=220, Total=12656 [2024-11-09 01:14:28,324 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 852 mSDsluCounter, 2314 mSDsCounter, 0 mSdLazyCounter, 4780 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 852 SdHoareTripleChecker+Valid, 2442 SdHoareTripleChecker+Invalid, 4847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 4780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.9s IncrementalHoareTripleChecker+Time [2024-11-09 01:14:28,324 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [852 Valid, 2442 Invalid, 4847 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [67 Valid, 4780 Invalid, 0 Unknown, 0 Unchecked, 32.9s Time] [2024-11-09 01:14:28,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 989 states. [2024-11-09 01:14:28,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 989 to 687. [2024-11-09 01:14:28,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 687 states, 631 states have (on average 1.1426307448494453) internal successors, (721), 631 states have internal predecessors, (721), 36 states have call successors, (36), 19 states have call predecessors, (36), 19 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-09 01:14:28,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 793 transitions. [2024-11-09 01:14:28,380 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 793 transitions. Word has length 220 [2024-11-09 01:14:28,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:14:28,380 INFO L471 AbstractCegarLoop]: Abstraction has 687 states and 793 transitions. [2024-11-09 01:14:28,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 48 states have (on average 6.291666666666667) internal successors, (302), 51 states have internal predecessors, (302), 16 states have call successors, (62), 12 states have call predecessors, (62), 16 states have return successors, (62), 11 states have call predecessors, (62), 16 states have call successors, (62) [2024-11-09 01:14:28,381 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 793 transitions. [2024-11-09 01:14:28,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-11-09 01:14:28,383 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:14:28,383 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:14:28,399 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (59)] Ended with exit code 0 [2024-11-09 01:14:28,601 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Ended with exit code 0 [2024-11-09 01:14:28,791 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 (58)] Ended with exit code 0 [2024-11-09 01:14:28,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:14:28,984 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:14:28,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:14:28,984 INFO L85 PathProgramCache]: Analyzing trace with hash -366059085, now seen corresponding path program 1 times [2024-11-09 01:14:28,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:14:28,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1196300087] [2024-11-09 01:14:28,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:14:28,985 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 01:14:28,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:14:28,986 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:14:28,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 (61)] Waiting until timeout for monitored process [2024-11-09 01:14:29,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:14:29,993 INFO L255 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-09 01:14:29,998 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:14:30,765 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 20 treesize of output 15 [2024-11-09 01:14:30,973 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 01:14:31,261 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2024-11-09 01:14:31,902 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 34 treesize of output 14 [2024-11-09 01:14:32,847 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 01:14:33,423 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 01:14:33,758 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2024-11-09 01:14:34,704 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 40 [2024-11-09 01:14:34,909 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 40 [2024-11-09 01:14:35,613 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:14:35,613 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 61 treesize of output 31 [2024-11-09 01:14:36,120 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 729 proven. 219 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2024-11-09 01:14:36,120 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:14:36,752 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1375 (Array (_ BitVec 32) (_ BitVec 32)))) (bvugt (let ((.cse0 (select (store |c_#memory_int| |c_~#unsigned_long_int_Array_0~0.base| v_ArrVal_1375) |c_~#signed_short_int_Array_0~0.base|))) (bvadd (bvneg ((_ sign_extend 16) ((_ extract 15 0) (select .cse0 |c_~#signed_short_int_Array_0~0.offset|)))) ((_ sign_extend 16) ((_ extract 15 0) (select .cse0 (bvadd |c_~#signed_short_int_Array_0~0.offset| (_ bv2 32))))) ((_ zero_extend 24) c_~last_1_unsigned_char_Array_0_2_~0))) c_~last_1_unsigned_long_int_Array_0_0_~0)) is different from false [2024-11-09 01:14:36,782 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1375 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1374 (Array (_ BitVec 32) (_ BitVec 32)))) (bvugt (let ((.cse0 (select (store (store |c_#memory_int| |c_~#unsigned_char_Array_0~0.base| v_ArrVal_1374) |c_~#unsigned_long_int_Array_0~0.base| v_ArrVal_1375) |c_~#signed_short_int_Array_0~0.base|))) (bvadd (bvneg ((_ sign_extend 16) ((_ extract 15 0) (select .cse0 |c_~#signed_short_int_Array_0~0.offset|)))) ((_ sign_extend 16) ((_ extract 15 0) (select .cse0 (bvadd |c_~#signed_short_int_Array_0~0.offset| (_ bv2 32))))) ((_ zero_extend 24) c_~last_1_unsigned_char_Array_0_2_~0))) c_~last_1_unsigned_long_int_Array_0_0_~0)) is different from false [2024-11-09 01:14:36,827 WARN L851 $PredicateComparison]: unable to prove that (forall ((~last_1_unsigned_char_Array_0_2_~0 (_ BitVec 8))) (let ((.cse0 ((_ zero_extend 24) ~last_1_unsigned_char_Array_0_2_~0))) (or (not (bvugt (bvadd .cse0 ((_ sign_extend 16) |c_ULTIMATE.start_step_#t~mem6#1|) (bvneg ((_ sign_extend 16) |c_ULTIMATE.start_step_#t~mem5#1|))) |c_ULTIMATE.start_step_~stepLocal_2~0#1|)) (forall ((v_ArrVal_1375 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1374 (Array (_ BitVec 32) (_ BitVec 32)))) (bvugt (let ((.cse1 (select (store (store |c_#memory_int| |c_~#unsigned_char_Array_0~0.base| v_ArrVal_1374) |c_~#unsigned_long_int_Array_0~0.base| v_ArrVal_1375) |c_~#signed_short_int_Array_0~0.base|))) (bvadd .cse0 (bvneg ((_ sign_extend 16) ((_ extract 15 0) (select .cse1 |c_~#signed_short_int_Array_0~0.offset|)))) ((_ sign_extend 16) ((_ extract 15 0) (select .cse1 (bvadd |c_~#signed_short_int_Array_0~0.offset| (_ bv2 32))))))) c_~last_1_unsigned_long_int_Array_0_0_~0))))) is different from false [2024-11-09 01:14:43,850 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:14:43,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1196300087] [2024-11-09 01:14:43,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1196300087] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:14:43,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [177689765] [2024-11-09 01:14:43,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:14:43,851 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 01:14:43,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 01:14:43,854 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 01:14:43,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (62)] Waiting until timeout for monitored process [2024-11-09 01:14:45,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:14:45,833 INFO L255 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-09 01:14:45,839 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:14:46,579 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2024-11-09 01:14:47,442 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 19 [2024-11-09 01:14:47,740 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 19 [2024-11-09 01:14:48,135 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 26 [2024-11-09 01:14:49,007 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2024-11-09 01:14:50,284 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-09 01:14:51,406 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 01:14:51,775 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 01:14:53,326 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 47 treesize of output 36 [2024-11-09 01:14:53,705 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 36 [2024-11-09 01:14:54,904 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 55 treesize of output 31 [2024-11-09 01:14:55,466 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 606 proven. 348 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2024-11-09 01:14:55,466 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:14:56,347 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1418 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1419 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store (store |c_#memory_int| |c_~#unsigned_char_Array_0~0.base| v_ArrVal_1418) |c_~#unsigned_long_int_Array_0~0.base| v_ArrVal_1419) |c_~#signed_short_int_Array_0~0.base|))) (let ((.cse1 ((_ sign_extend 16) ((_ extract 15 0) (select .cse0 |c_~#signed_short_int_Array_0~0.offset|))))) (or (bvugt (bvadd ((_ zero_extend 24) c_~last_1_unsigned_char_Array_0_2_~0) ((_ sign_extend 16) ((_ extract 15 0) (select .cse0 (bvadd |c_~#signed_short_int_Array_0~0.offset| (_ bv2 32))))) (bvneg .cse1)) c_~last_1_unsigned_long_int_Array_0_0_~0) (not (bvugt c_~last_1_unsigned_long_int_Array_0_0_~0 .cse1)))))) is different from false [2024-11-09 01:15:13,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [177689765] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:15:13,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [210642351] [2024-11-09 01:15:13,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:15:13,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:15:13,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:15:13,636 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:15:13,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2024-11-09 01:15:14,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:15:14,855 INFO L255 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-09 01:15:14,862 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:15:15,351 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-09 01:15:16,579 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 23 [2024-11-09 01:15:16,858 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 23 [2024-11-09 01:15:17,232 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 28 [2024-11-09 01:15:19,011 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 28 treesize of output 14 [2024-11-09 01:15:21,317 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 18 [2024-11-09 01:15:22,917 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 29 [2024-11-09 01:15:23,393 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 29 [2024-11-09 01:15:25,274 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 60 treesize of output 47 [2024-11-09 01:15:25,749 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 47 [2024-11-09 01:15:26,822 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:15:26,822 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 70 treesize of output 36 [2024-11-09 01:15:28,319 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 614 proven. 378 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-09 01:15:28,319 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:15:29,024 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1463 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1462 (Array (_ BitVec 32) (_ BitVec 32)))) (bvugt (let ((.cse0 (select (store (store |c_#memory_int| |c_~#unsigned_char_Array_0~0.base| v_ArrVal_1462) |c_~#unsigned_long_int_Array_0~0.base| v_ArrVal_1463) |c_~#signed_short_int_Array_0~0.base|))) (bvadd ((_ sign_extend 16) ((_ extract 15 0) (select .cse0 (bvadd |c_~#signed_short_int_Array_0~0.offset| (_ bv2 32))))) (bvneg ((_ sign_extend 16) ((_ extract 15 0) (select .cse0 |c_~#signed_short_int_Array_0~0.offset|)))) ((_ zero_extend 24) c_~last_1_unsigned_char_Array_0_2_~0))) c_~last_1_unsigned_long_int_Array_0_0_~0)) is different from false [2024-11-09 01:15:29,069 WARN L851 $PredicateComparison]: unable to prove that (forall ((~last_1_unsigned_char_Array_0_2_~0 (_ BitVec 8))) (let ((.cse0 ((_ zero_extend 24) ~last_1_unsigned_char_Array_0_2_~0))) (or (not (bvugt (bvadd .cse0 ((_ sign_extend 16) |c_ULTIMATE.start_step_#t~mem6#1|) (bvneg ((_ sign_extend 16) |c_ULTIMATE.start_step_#t~mem5#1|))) |c_ULTIMATE.start_step_~stepLocal_2~0#1|)) (forall ((v_ArrVal_1463 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1462 (Array (_ BitVec 32) (_ BitVec 32)))) (bvugt (let ((.cse1 (select (store (store |c_#memory_int| |c_~#unsigned_char_Array_0~0.base| v_ArrVal_1462) |c_~#unsigned_long_int_Array_0~0.base| v_ArrVal_1463) |c_~#signed_short_int_Array_0~0.base|))) (bvadd .cse0 ((_ sign_extend 16) ((_ extract 15 0) (select .cse1 (bvadd |c_~#signed_short_int_Array_0~0.offset| (_ bv2 32))))) (bvneg ((_ sign_extend 16) ((_ extract 15 0) (select .cse1 |c_~#signed_short_int_Array_0~0.offset|)))))) c_~last_1_unsigned_long_int_Array_0_0_~0))))) is different from false [2024-11-09 01:16:00,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [210642351] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:16:00,054 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:16:00,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 20, 31] total 62 [2024-11-09 01:16:00,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300717056] [2024-11-09 01:16:00,054 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 01:16:00,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2024-11-09 01:16:00,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:16:00,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2024-11-09 01:16:00,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=647, Invalid=5020, Unknown=57, NotChecked=918, Total=6642 [2024-11-09 01:16:00,059 INFO L87 Difference]: Start difference. First operand 687 states and 793 transitions. Second operand has 63 states, 55 states have (on average 5.6) internal successors, (308), 58 states have internal predecessors, (308), 18 states have call successors, (62), 14 states have call predecessors, (62), 17 states have return successors, (62), 12 states have call predecessors, (62), 18 states have call successors, (62) [2024-11-09 01:16:10,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:16:45,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:16:45,145 INFO L93 Difference]: Finished difference Result 1477 states and 1700 transitions. [2024-11-09 01:16:45,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-11-09 01:16:45,146 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 55 states have (on average 5.6) internal successors, (308), 58 states have internal predecessors, (308), 18 states have call successors, (62), 14 states have call predecessors, (62), 17 states have return successors, (62), 12 states have call predecessors, (62), 18 states have call successors, (62) Word has length 220 [2024-11-09 01:16:45,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:16:45,148 INFO L225 Difference]: With dead ends: 1477 [2024-11-09 01:16:45,148 INFO L226 Difference]: Without dead ends: 979 [2024-11-09 01:16:45,151 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 802 GetRequests, 671 SyntacticMatches, 2 SemanticMatches, 129 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 5512 ImplicationChecksByTransitivity, 79.8s TimeCoverageRelationStatistics Valid=1917, Invalid=13550, Unknown=57, NotChecked=1506, Total=17030 [2024-11-09 01:16:45,151 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 593 mSDsluCounter, 2236 mSDsCounter, 0 mSdLazyCounter, 5538 mSolverCounterSat, 52 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 596 SdHoareTripleChecker+Valid, 2353 SdHoareTripleChecker+Invalid, 5591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 5538 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.7s IncrementalHoareTripleChecker+Time [2024-11-09 01:16:45,152 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [596 Valid, 2353 Invalid, 5591 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [52 Valid, 5538 Invalid, 1 Unknown, 0 Unchecked, 34.7s Time] [2024-11-09 01:16:45,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 979 states. [2024-11-09 01:16:45,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 979 to 687. [2024-11-09 01:16:45,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 687 states, 631 states have (on average 1.1426307448494453) internal successors, (721), 631 states have internal predecessors, (721), 36 states have call successors, (36), 19 states have call predecessors, (36), 19 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-09 01:16:45,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 793 transitions. [2024-11-09 01:16:45,208 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 793 transitions. Word has length 220 [2024-11-09 01:16:45,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:16:45,209 INFO L471 AbstractCegarLoop]: Abstraction has 687 states and 793 transitions. [2024-11-09 01:16:45,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 55 states have (on average 5.6) internal successors, (308), 58 states have internal predecessors, (308), 18 states have call successors, (62), 14 states have call predecessors, (62), 17 states have return successors, (62), 12 states have call predecessors, (62), 18 states have call successors, (62) [2024-11-09 01:16:45,209 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 793 transitions. [2024-11-09 01:16:45,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-11-09 01:16:45,211 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:16:45,212 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 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 01:16:45,242 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Ended with exit code 0 [2024-11-09 01:16:45,421 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (62)] Forceful destruction successful, exit code 0 [2024-11-09 01:16:45,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 (61)] Forceful destruction successful, exit code 0 [2024-11-09 01:16:45,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:16:45,813 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:16:45,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:16:45,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1905251359, now seen corresponding path program 1 times [2024-11-09 01:16:45,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:16:45,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [18563846] [2024-11-09 01:16:45,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:16:45,814 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 01:16:45,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:16:45,817 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:16:45,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 (64)] Waiting until timeout for monitored process [2024-11-09 01:16:46,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:16:46,504 INFO L255 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 01:16:46,508 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:16:46,647 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 01:16:46,910 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 01:16:47,106 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 01:16:47,268 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 01:16:47,448 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 01:16:47,611 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 01:16:47,743 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 01:16:47,909 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 614 proven. 212 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2024-11-09 01:16:47,909 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:16:48,083 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:16:48,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [18563846] [2024-11-09 01:16:48,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [18563846] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:16:48,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [857973532] [2024-11-09 01:16:48,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:16:48,083 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 01:16:48,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 01:16:48,085 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 01:16:48,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (65)] Waiting until timeout for monitored process [2024-11-09 01:16:49,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:16:49,306 INFO L255 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 01:16:49,310 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:16:49,432 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 16 treesize of output 11 [2024-11-09 01:16:49,693 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 01:16:49,906 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 01:16:50,061 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 01:16:50,268 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 01:16:50,414 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 01:16:50,557 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 01:16:50,705 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 614 proven. 212 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2024-11-09 01:16:50,705 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:16:50,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [857973532] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:16:50,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1248137588] [2024-11-09 01:16:50,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:16:50,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:16:50,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:16:50,829 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:16:50,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2024-11-09 01:16:51,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:16:51,331 INFO L255 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-09 01:16:51,334 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:16:52,327 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 01:16:52,928 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-09 01:16:53,607 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 30 treesize of output 23 [2024-11-09 01:16:53,888 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 23 [2024-11-09 01:16:54,492 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 781 proven. 15 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-09 01:16:54,493 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:16:54,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1248137588] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:16:54,877 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:16:54,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 12] total 18 [2024-11-09 01:16:54,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984513779] [2024-11-09 01:16:54,878 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 01:16:54,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-09 01:16:54,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:16:54,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-09 01:16:54,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=463, Unknown=0, NotChecked=0, Total=552 [2024-11-09 01:16:54,880 INFO L87 Difference]: Start difference. First operand 687 states and 793 transitions. Second operand has 19 states, 18 states have (on average 10.88888888888889) internal successors, (196), 17 states have internal predecessors, (196), 9 states have call successors, (48), 9 states have call predecessors, (48), 9 states have return successors, (48), 8 states have call predecessors, (48), 9 states have call successors, (48) [2024-11-09 01:17:05,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:17:05,765 INFO L93 Difference]: Finished difference Result 2186 states and 2527 transitions. [2024-11-09 01:17:05,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-09 01:17:05,766 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 10.88888888888889) internal successors, (196), 17 states have internal predecessors, (196), 9 states have call successors, (48), 9 states have call predecessors, (48), 9 states have return successors, (48), 8 states have call predecessors, (48), 9 states have call successors, (48) Word has length 225 [2024-11-09 01:17:05,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:17:05,769 INFO L225 Difference]: With dead ends: 2186 [2024-11-09 01:17:05,769 INFO L226 Difference]: Without dead ends: 1565 [2024-11-09 01:17:05,770 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1002 GetRequests, 970 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=175, Invalid=947, Unknown=0, NotChecked=0, Total=1122 [2024-11-09 01:17:05,771 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 236 mSDsluCounter, 1596 mSDsCounter, 0 mSdLazyCounter, 2576 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 1786 SdHoareTripleChecker+Invalid, 2594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2024-11-09 01:17:05,771 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 1786 Invalid, 2594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 2576 Invalid, 0 Unknown, 0 Unchecked, 9.8s Time] [2024-11-09 01:17:05,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1565 states. [2024-11-09 01:17:05,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1565 to 1217. [2024-11-09 01:17:05,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1217 states, 1125 states have (on average 1.1431111111111112) internal successors, (1286), 1125 states have internal predecessors, (1286), 60 states have call successors, (60), 31 states have call predecessors, (60), 31 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-09 01:17:05,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1217 states to 1217 states and 1406 transitions. [2024-11-09 01:17:05,885 INFO L78 Accepts]: Start accepts. Automaton has 1217 states and 1406 transitions. Word has length 225 [2024-11-09 01:17:05,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:17:05,886 INFO L471 AbstractCegarLoop]: Abstraction has 1217 states and 1406 transitions. [2024-11-09 01:17:05,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 10.88888888888889) internal successors, (196), 17 states have internal predecessors, (196), 9 states have call successors, (48), 9 states have call predecessors, (48), 9 states have return successors, (48), 8 states have call predecessors, (48), 9 states have call successors, (48) [2024-11-09 01:17:05,886 INFO L276 IsEmpty]: Start isEmpty. Operand 1217 states and 1406 transitions. [2024-11-09 01:17:05,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-11-09 01:17:05,888 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:17:05,888 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 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 01:17:05,899 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 (64)] Ended with exit code 0 [2024-11-09 01:17:06,096 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (65)] Forceful destruction successful, exit code 0 [2024-11-09 01:17:06,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Forceful destruction successful, exit code 0 [2024-11-09 01:17:06,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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=3,65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:17:06,489 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:17:06,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:17:06,490 INFO L85 PathProgramCache]: Analyzing trace with hash -315602209, now seen corresponding path program 1 times [2024-11-09 01:17:06,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:17:06,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [291427500] [2024-11-09 01:17:06,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:17:06,490 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 01:17:06,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:17:06,493 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:17:06,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 (67)] Waiting until timeout for monitored process [2024-11-09 01:17:07,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:17:07,269 INFO L255 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-09 01:17:07,274 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:17:07,437 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 01:17:07,693 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 01:17:07,873 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 01:17:08,034 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 01:17:08,226 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 01:17:08,410 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 01:17:08,593 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 01:17:09,762 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 01:17:10,097 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 01:17:10,315 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2024-11-09 01:17:10,608 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:17:10,609 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 39 treesize of output 19 [2024-11-09 01:17:10,681 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 115 proven. 807 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2024-11-09 01:17:10,681 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:17:10,965 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:17:10,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [291427500] [2024-11-09 01:17:10,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [291427500] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:17:10,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1372154341] [2024-11-09 01:17:10,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:17:10,966 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 01:17:10,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 01:17:10,967 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 01:17:10,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (68)] Waiting until timeout for monitored process [2024-11-09 01:17:12,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:17:12,709 INFO L255 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-09 01:17:12,716 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:17:12,934 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 01:17:13,294 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 01:17:13,536 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 01:17:13,775 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 01:17:14,036 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 01:17:14,272 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 01:17:14,518 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 01:17:16,253 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2024-11-09 01:17:17,164 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 26 treesize of output 19 [2024-11-09 01:17:17,514 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 19 [2024-11-09 01:17:18,246 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 43 [2024-11-09 01:17:18,260 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 171 proven. 733 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2024-11-09 01:17:18,260 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:17:19,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1372154341] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:17:19,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [892025504] [2024-11-09 01:17:19,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:17:19,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:17:19,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:17:19,087 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:17:19,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2024-11-09 01:17:20,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:17:20,120 INFO L255 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-09 01:17:20,126 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:17:20,384 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 14 [2024-11-09 01:17:20,764 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 14 [2024-11-09 01:17:20,964 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 14 [2024-11-09 01:17:21,244 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 14 [2024-11-09 01:17:21,469 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 14 [2024-11-09 01:17:21,672 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2024-11-09 01:17:22,073 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:17:22,073 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 35 [2024-11-09 01:17:23,537 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:17:23,537 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 17 [2024-11-09 01:17:25,908 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 28 [2024-11-09 01:17:27,464 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 37 [2024-11-09 01:17:27,973 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 37 [2024-11-09 01:17:29,227 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 63 [2024-11-09 01:17:29,683 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 63 [2024-11-09 01:17:31,030 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:17:31,031 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 90 treesize of output 46 [2024-11-09 01:17:31,398 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 253 proven. 779 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-11-09 01:17:31,399 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:17:35,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [892025504] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:17:35,077 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:17:35,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 26] total 48 [2024-11-09 01:17:35,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762537469] [2024-11-09 01:17:35,077 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 01:17:35,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2024-11-09 01:17:35,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:17:35,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2024-11-09 01:17:35,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=317, Invalid=3790, Unknown=53, NotChecked=0, Total=4160 [2024-11-09 01:17:35,080 INFO L87 Difference]: Start difference. First operand 1217 states and 1406 transitions. Second operand has 49 states, 44 states have (on average 7.681818181818182) internal successors, (338), 44 states have internal predecessors, (338), 20 states have call successors, (72), 18 states have call predecessors, (72), 20 states have return successors, (72), 17 states have call predecessors, (72), 20 states have call successors, (72) [2024-11-09 01:18:02,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:18:02,178 INFO L93 Difference]: Finished difference Result 3670 states and 4193 transitions. [2024-11-09 01:18:02,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2024-11-09 01:18:02,179 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 44 states have (on average 7.681818181818182) internal successors, (338), 44 states have internal predecessors, (338), 20 states have call successors, (72), 18 states have call predecessors, (72), 20 states have return successors, (72), 17 states have call predecessors, (72), 20 states have call successors, (72) Word has length 225 [2024-11-09 01:18:02,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:18:02,184 INFO L225 Difference]: With dead ends: 3670 [2024-11-09 01:18:02,184 INFO L226 Difference]: Without dead ends: 2592 [2024-11-09 01:18:02,187 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 827 GetRequests, 705 SyntacticMatches, 0 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4577 ImplicationChecksByTransitivity, 23.8s TimeCoverageRelationStatistics Valid=1829, Invalid=13370, Unknown=53, NotChecked=0, Total=15252 [2024-11-09 01:18:02,187 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 1813 mSDsluCounter, 1836 mSDsCounter, 0 mSdLazyCounter, 3276 mSolverCounterSat, 555 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1813 SdHoareTripleChecker+Valid, 1920 SdHoareTripleChecker+Invalid, 3831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 555 IncrementalHoareTripleChecker+Valid, 3276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2024-11-09 01:18:02,187 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1813 Valid, 1920 Invalid, 3831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [555 Valid, 3276 Invalid, 0 Unknown, 0 Unchecked, 13.3s Time] [2024-11-09 01:18:02,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2592 states. [2024-11-09 01:18:02,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2592 to 1635. [2024-11-09 01:18:02,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1635 states, 1461 states have (on average 1.1327857631759068) internal successors, (1655), 1461 states have internal predecessors, (1655), 108 states have call successors, (108), 65 states have call predecessors, (108), 65 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-09 01:18:02,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1635 states to 1635 states and 1871 transitions. [2024-11-09 01:18:02,419 INFO L78 Accepts]: Start accepts. Automaton has 1635 states and 1871 transitions. Word has length 225 [2024-11-09 01:18:02,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:18:02,419 INFO L471 AbstractCegarLoop]: Abstraction has 1635 states and 1871 transitions. [2024-11-09 01:18:02,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 44 states have (on average 7.681818181818182) internal successors, (338), 44 states have internal predecessors, (338), 20 states have call successors, (72), 18 states have call predecessors, (72), 20 states have return successors, (72), 17 states have call predecessors, (72), 20 states have call successors, (72) [2024-11-09 01:18:02,420 INFO L276 IsEmpty]: Start isEmpty. Operand 1635 states and 1871 transitions. [2024-11-09 01:18:02,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-11-09 01:18:02,422 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:18:02,422 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 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 01:18:02,433 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 (67)] Ended with exit code 0 [2024-11-09 01:18:02,654 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Ended with exit code 0 [2024-11-09 01:18:02,836 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (68)] Forceful destruction successful, exit code 0 [2024-11-09 01:18:03,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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=3,69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 01:18:03,023 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:18:03,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:18:03,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1212364307, now seen corresponding path program 1 times [2024-11-09 01:18:03,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:18:03,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [720632071] [2024-11-09 01:18:03,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:18:03,025 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 01:18:03,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:18:03,026 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 01:18:03,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/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 (70)] Waiting until timeout for monitored process [2024-11-09 01:18:03,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:18:03,753 INFO L255 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-09 01:18:03,759 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:18:03,955 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 01:18:04,260 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 01:18:04,437 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 01:18:04,580 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 01:18:04,750 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 01:18:04,915 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 01:18:05,087 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 01:18:06,438 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 01:18:06,867 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 01:18:07,166 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2024-11-09 01:18:07,753 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 22 [2024-11-09 01:18:07,863 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 22 [2024-11-09 01:18:08,180 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:18:08,180 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 39 treesize of output 19 [2024-11-09 01:18:08,265 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 149 proven. 749 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2024-11-09 01:18:08,265 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:18:08,970 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1751 (Array (_ BitVec 32) (_ BitVec 32))) (~last_1_unsigned_char_Array_0_2_~0 (_ BitVec 8))) (bvugt (let ((.cse0 (select (store |c_#memory_int| |c_~#unsigned_long_int_Array_0~0.base| v_ArrVal_1751) |c_~#signed_short_int_Array_0~0.base|))) (bvadd ((_ zero_extend 24) ~last_1_unsigned_char_Array_0_2_~0) ((_ sign_extend 16) ((_ extract 15 0) (select .cse0 (bvadd |c_~#signed_short_int_Array_0~0.offset| (_ bv2 32))))) (bvneg ((_ sign_extend 16) ((_ extract 15 0) (select .cse0 |c_~#signed_short_int_Array_0~0.offset|)))))) c_~last_1_unsigned_long_int_Array_0_0_~0)) is different from false [2024-11-09 01:18:08,998 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1750 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1751 (Array (_ BitVec 32) (_ BitVec 32))) (~last_1_unsigned_char_Array_0_2_~0 (_ BitVec 8))) (bvugt (let ((.cse0 (select (store (store |c_#memory_int| |c_~#unsigned_char_Array_0~0.base| v_ArrVal_1750) |c_~#unsigned_long_int_Array_0~0.base| v_ArrVal_1751) |c_~#signed_short_int_Array_0~0.base|))) (bvadd ((_ zero_extend 24) ~last_1_unsigned_char_Array_0_2_~0) ((_ sign_extend 16) ((_ extract 15 0) (select .cse0 (bvadd |c_~#signed_short_int_Array_0~0.offset| (_ bv2 32))))) (bvneg ((_ sign_extend 16) ((_ extract 15 0) (select .cse0 |c_~#signed_short_int_Array_0~0.offset|)))))) c_~last_1_unsigned_long_int_Array_0_0_~0)) is different from false [2024-11-09 01:18:17,221 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:18:17,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [720632071] [2024-11-09 01:18:17,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [720632071] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:18:17,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1732076128] [2024-11-09 01:18:17,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:18:17,222 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 01:18:17,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 01:18:17,223 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 01:18:17,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (71)] Waiting until timeout for monitored process [2024-11-09 01:18:18,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:18:18,889 INFO L255 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-09 01:18:18,895 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:18:19,151 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 01:18:19,586 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 01:18:19,859 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 16 treesize of output 11 [2024-11-09 01:18:20,146 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 01:18:20,406 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 01:18:20,678 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 01:18:20,949 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 01:18:22,955 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 01:18:23,698 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 01:18:24,051 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 01:18:24,609 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 01:18:24,759 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 01:18:25,218 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 35 treesize of output 19 [2024-11-09 01:18:25,300 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 149 proven. 749 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2024-11-09 01:18:25,301 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:19:05,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1732076128] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:19:05,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1716615946] [2024-11-09 01:19:05,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:19:05,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:19:05,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:19:05,995 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:19:05,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cb00194-93cf-42f8-9c79-ed34fae607ed/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Waiting until timeout for monitored process [2024-11-09 01:19:06,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:19:07,004 INFO L255 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-09 01:19:07,011 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:19:07,299 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 14 [2024-11-09 01:19:07,739 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 14 [2024-11-09 01:19:07,995 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 14 [2024-11-09 01:19:08,288 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 14 [2024-11-09 01:19:08,524 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 19 treesize of output 14 [2024-11-09 01:19:08,770 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2024-11-09 01:19:09,018 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-11-09 01:19:10,394 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:19:10,394 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 13 [2024-11-09 01:19:12,566 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 28 [2024-11-09 01:19:14,314 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 37