./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-19.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-19.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 c3a2d291e2452542ab6962635da2f74c802677a527b9a558cac3248bce42ee2c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 04:40:22,298 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:40:22,396 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 04:40:22,402 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:40:22,403 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:40:22,443 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:40:22,444 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:40:22,444 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:40:22,445 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:40:22,446 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:40:22,447 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 04:40:22,448 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 04:40:22,448 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 04:40:22,449 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 04:40:22,452 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 04:40:22,453 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 04:40:22,453 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 04:40:22,453 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 04:40:22,454 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 04:40:22,454 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 04:40:22,455 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 04:40:22,455 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 04:40:22,459 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:40:22,460 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 04:40:22,460 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 04:40:22,460 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 04:40:22,461 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 04:40:22,461 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:40:22,461 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 04:40:22,462 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:40:22,464 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 04:40:22,465 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:40:22,475 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 04:40:22,475 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 04:40:22,477 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:40:22,477 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:40:22,477 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 04:40:22,478 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:40:22,478 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:40:22,479 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:40:22,479 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:40:22,481 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 04:40:22,481 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 04:40:22,482 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 04:40:22,482 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:40:22,483 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 04:40:22,483 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 04:40:22,484 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_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3a2d291e2452542ab6962635da2f74c802677a527b9a558cac3248bce42ee2c [2024-11-09 04:40:22,900 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:40:22,934 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:40:22,937 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:40:22,939 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:40:22,939 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:40:22,941 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-19.i Unable to find full path for "g++" [2024-11-09 04:40:25,169 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:40:25,491 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:40:25,492 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-19.i [2024-11-09 04:40:25,502 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/data/05b2f7fd9/64c38ee07af847d6a23008b24749ba36/FLAGdc0764e0c [2024-11-09 04:40:25,520 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/data/05b2f7fd9/64c38ee07af847d6a23008b24749ba36 [2024-11-09 04:40:25,523 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:40:25,525 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:40:25,529 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:40:25,529 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:40:25,541 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:40:25,542 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:40:25" (1/1) ... [2024-11-09 04:40:25,543 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36da259d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:40:25, skipping insertion in model container [2024-11-09 04:40:25,544 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:40:25" (1/1) ... [2024-11-09 04:40:25,594 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:40:25,827 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_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-19.i[916,929] [2024-11-09 04:40:25,919 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:40:25,931 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 04:40:25,943 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_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-19.i[916,929] [2024-11-09 04:40:25,985 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:40:26,019 INFO L204 MainTranslator]: Completed translation [2024-11-09 04:40:26,019 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:40:26 WrapperNode [2024-11-09 04:40:26,019 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 04:40:26,021 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 04:40:26,021 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 04:40:26,021 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 04:40:26,031 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:40:26" (1/1) ... [2024-11-09 04:40:26,050 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:40:26" (1/1) ... [2024-11-09 04:40:26,104 INFO L138 Inliner]: procedures = 27, calls = 153, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 460 [2024-11-09 04:40:26,105 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 04:40:26,105 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 04:40:26,105 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 04:40:26,106 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 04:40:26,117 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:40:26" (1/1) ... [2024-11-09 04:40:26,117 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:40:26" (1/1) ... [2024-11-09 04:40:26,129 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:40:26" (1/1) ... [2024-11-09 04:40:26,130 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:40:26" (1/1) ... [2024-11-09 04:40:26,153 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:40:26" (1/1) ... [2024-11-09 04:40:26,158 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:40:26" (1/1) ... [2024-11-09 04:40:26,161 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:40:26" (1/1) ... [2024-11-09 04:40:26,164 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:40:26" (1/1) ... [2024-11-09 04:40:26,170 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 04:40:26,171 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 04:40:26,171 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 04:40:26,171 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 04:40:26,172 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:40:26" (1/1) ... [2024-11-09 04:40:26,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:40:26,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:40:26,218 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 04:40:26,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 04:40:26,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 04:40:26,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-09 04:40:26,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 04:40:26,257 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 04:40:26,257 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 04:40:26,257 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 04:40:26,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 04:40:26,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 04:40:26,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 04:40:26,394 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 04:40:26,397 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 04:40:27,070 INFO L? ?]: Removed 116 outVars from TransFormulas that were not future-live. [2024-11-09 04:40:27,071 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 04:40:27,749 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 04:40:27,750 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 04:40:27,751 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:40:27 BoogieIcfgContainer [2024-11-09 04:40:27,751 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 04:40:27,754 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 04:40:27,754 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 04:40:27,759 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 04:40:27,760 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:40:25" (1/3) ... [2024-11-09 04:40:27,761 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7828ac8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:40:27, skipping insertion in model container [2024-11-09 04:40:27,762 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:40:26" (2/3) ... [2024-11-09 04:40:27,763 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7828ac8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:40:27, skipping insertion in model container [2024-11-09 04:40:27,764 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:40:27" (3/3) ... [2024-11-09 04:40:27,766 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-19.i [2024-11-09 04:40:27,789 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 04:40:27,790 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 04:40:27,889 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 04:40:27,900 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;@41324c5a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 04:40:27,900 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 04:40:27,905 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 24 states have internal predecessors, (26), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-09 04:40:27,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-09 04:40:27,921 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:40:27,922 INFO L215 NwaCegarLoop]: trace histogram [17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:40:27,922 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:40:27,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:40:27,931 INFO L85 PathProgramCache]: Analyzing trace with hash 2000291065, now seen corresponding path program 1 times [2024-11-09 04:40:27,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:40:27,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540289936] [2024-11-09 04:40:27,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:40:27,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:40:29,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 04:40:29,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [716745346] [2024-11-09 04:40:29,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:40:29,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:40:29,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:40:29,846 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:40:29,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 04:40:31,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 04:40:31,347 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 04:40:31,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 04:40:31,988 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 04:40:31,991 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 04:40:31,993 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 04:40:32,012 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 04:40:32,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-09 04:40:32,200 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 04:40:32,294 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 04:40:32,299 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 04:40:32 BoogieIcfgContainer [2024-11-09 04:40:32,300 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 04:40:32,300 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 04:40:32,300 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 04:40:32,301 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 04:40:32,302 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:40:27" (3/4) ... [2024-11-09 04:40:32,305 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 04:40:32,306 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 04:40:32,309 INFO L158 Benchmark]: Toolchain (without parser) took 6782.55ms. Allocated memory was 146.8MB in the beginning and 197.1MB in the end (delta: 50.3MB). Free memory was 112.2MB in the beginning and 76.9MB in the end (delta: 35.3MB). Peak memory consumption was 88.7MB. Max. memory is 16.1GB. [2024-11-09 04:40:32,309 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 146.8MB. Free memory is still 114.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 04:40:32,310 INFO L158 Benchmark]: CACSL2BoogieTranslator took 490.99ms. Allocated memory is still 146.8MB. Free memory was 112.1MB in the beginning and 94.4MB in the end (delta: 17.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-09 04:40:32,310 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.01ms. Allocated memory is still 146.8MB. Free memory was 94.4MB in the beginning and 90.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 04:40:32,312 INFO L158 Benchmark]: Boogie Preprocessor took 64.70ms. Allocated memory is still 146.8MB. Free memory was 90.2MB in the beginning and 87.2MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 04:40:32,313 INFO L158 Benchmark]: RCFGBuilder took 1580.76ms. Allocated memory was 146.8MB in the beginning and 197.1MB in the end (delta: 50.3MB). Free memory was 87.2MB in the beginning and 103.0MB in the end (delta: -15.8MB). Peak memory consumption was 48.9MB. Max. memory is 16.1GB. [2024-11-09 04:40:32,314 INFO L158 Benchmark]: TraceAbstraction took 4545.66ms. Allocated memory is still 197.1MB. Free memory was 103.0MB in the beginning and 76.9MB in the end (delta: 26.1MB). Peak memory consumption was 27.1MB. Max. memory is 16.1GB. [2024-11-09 04:40:32,314 INFO L158 Benchmark]: Witness Printer took 6.05ms. Allocated memory is still 197.1MB. Free memory is still 76.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 04:40:32,320 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 146.8MB. Free memory is still 114.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 490.99ms. Allocated memory is still 146.8MB. Free memory was 112.1MB in the beginning and 94.4MB in the end (delta: 17.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.01ms. Allocated memory is still 146.8MB. Free memory was 94.4MB in the beginning and 90.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.70ms. Allocated memory is still 146.8MB. Free memory was 90.2MB in the beginning and 87.2MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1580.76ms. Allocated memory was 146.8MB in the beginning and 197.1MB in the end (delta: 50.3MB). Free memory was 87.2MB in the beginning and 103.0MB in the end (delta: -15.8MB). Peak memory consumption was 48.9MB. Max. memory is 16.1GB. * TraceAbstraction took 4545.66ms. Allocated memory is still 197.1MB. Free memory was 103.0MB in the beginning and 76.9MB in the end (delta: 26.1MB). Peak memory consumption was 27.1MB. Max. memory is 16.1GB. * Witness Printer took 6.05ms. Allocated memory is still 197.1MB. Free memory is still 76.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of shiftLeft at line 74. Possible FailurePath: [L36] unsigned char isInitial = 0; [L37-L50] struct WrapperStruct00 WrapperStruct00 = { 8, 128, 64, 1, 5, 4, 100, 1, -8, 10, -25, -16 }; [L51] signed long int last_1_WrapperStruct00_var_1_11 = 10; [L117] isInitial = 1 [L118] FCALL initially() [L119] COND TRUE 1 [L120] CALL updateLastVariables() [L110] EXPR WrapperStruct00.var_1_11 [L110] last_1_WrapperStruct00_var_1_11 = WrapperStruct00.var_1_11 [L120] RET updateLastVariables() [L121] CALL updateVariables() [L83] WrapperStruct00.var_1_2 = __VERIFIER_nondet_uchar() [L84] EXPR WrapperStruct00.var_1_2 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L84] CALL assume_abort_if_not(WrapperStruct00.var_1_2 >= 127) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(WrapperStruct00.var_1_2 >= 127) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L85] EXPR WrapperStruct00.var_1_2 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L85] CALL assume_abort_if_not(WrapperStruct00.var_1_2 <= 255) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(WrapperStruct00.var_1_2 <= 255) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L86] WrapperStruct00.var_1_3 = __VERIFIER_nondet_uchar() [L87] EXPR WrapperStruct00.var_1_3 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L87] CALL assume_abort_if_not(WrapperStruct00.var_1_3 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(WrapperStruct00.var_1_3 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L88] EXPR WrapperStruct00.var_1_3 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L88] CALL assume_abort_if_not(WrapperStruct00.var_1_3 <= 127) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(WrapperStruct00.var_1_3 <= 127) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L89] WrapperStruct00.var_1_4 = __VERIFIER_nondet_ulong() [L90] EXPR WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L90] CALL assume_abort_if_not(WrapperStruct00.var_1_4 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not(WrapperStruct00.var_1_4 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L91] EXPR WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L91] CALL assume_abort_if_not(WrapperStruct00.var_1_4 <= 12) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(WrapperStruct00.var_1_4 <= 12) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L92] WrapperStruct00.var_1_5 = __VERIFIER_nondet_ulong() [L93] EXPR WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L93] CALL assume_abort_if_not(WrapperStruct00.var_1_5 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L20] COND FALSE !(!cond) [L93] RET assume_abort_if_not(WrapperStruct00.var_1_5 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L94] EXPR WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L94] CALL assume_abort_if_not(WrapperStruct00.var_1_5 <= 11) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L20] COND FALSE !(!cond) [L94] RET assume_abort_if_not(WrapperStruct00.var_1_5 <= 11) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L95] WrapperStruct00.var_1_7 = __VERIFIER_nondet_char() [L96] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L96] CALL assume_abort_if_not(WrapperStruct00.var_1_7 >= -63) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L20] COND FALSE !(!cond) [L96] RET assume_abort_if_not(WrapperStruct00.var_1_7 >= -63) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L97] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L97] CALL assume_abort_if_not(WrapperStruct00.var_1_7 <= 63) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L20] COND FALSE !(!cond) [L97] RET assume_abort_if_not(WrapperStruct00.var_1_7 <= 63) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L98] WrapperStruct00.var_1_8 = __VERIFIER_nondet_char() [L99] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L99] CALL assume_abort_if_not(WrapperStruct00.var_1_8 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L20] COND FALSE !(!cond) [L99] RET assume_abort_if_not(WrapperStruct00.var_1_8 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L100] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L100] CALL assume_abort_if_not(WrapperStruct00.var_1_8 <= 126) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L20] COND FALSE !(!cond) [L100] RET assume_abort_if_not(WrapperStruct00.var_1_8 <= 126) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L101] WrapperStruct00.var_1_9 = __VERIFIER_nondet_uchar() [L102] EXPR WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L102] CALL assume_abort_if_not(WrapperStruct00.var_1_9 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L20] COND FALSE !(!cond) [L102] RET assume_abort_if_not(WrapperStruct00.var_1_9 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L103] EXPR WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L103] CALL assume_abort_if_not(WrapperStruct00.var_1_9 <= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L20] COND FALSE !(!cond) [L103] RET assume_abort_if_not(WrapperStruct00.var_1_9 <= 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L104] WrapperStruct00.var_1_12 = __VERIFIER_nondet_long() [L105] EXPR WrapperStruct00.var_1_12 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L105] CALL assume_abort_if_not(WrapperStruct00.var_1_12 >= -2147483648) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L20] COND FALSE !(!cond) [L105] RET assume_abort_if_not(WrapperStruct00.var_1_12 >= -2147483648) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L106] EXPR WrapperStruct00.var_1_12 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L106] CALL assume_abort_if_not(WrapperStruct00.var_1_12 <= 2147483647) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L20] COND FALSE !(!cond) [L106] RET assume_abort_if_not(WrapperStruct00.var_1_12 <= 2147483647) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L107] EXPR WrapperStruct00.var_1_12 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L107] CALL assume_abort_if_not(WrapperStruct00.var_1_12 != 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L20] COND FALSE !(!cond) [L107] RET assume_abort_if_not(WrapperStruct00.var_1_12 != 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L121] RET updateVariables() [L122] CALL step() [L55] EXPR WrapperStruct00.var_1_7 [L55] EXPR WrapperStruct00.var_1_3 [L55] COND TRUE WrapperStruct00.var_1_7 < WrapperStruct00.var_1_3 [L56] EXPR WrapperStruct00.var_1_7 [L56] COND TRUE last_1_WrapperStruct00_var_1_11 > WrapperStruct00.var_1_7 [L57] EXPR WrapperStruct00.var_1_3 [L57] EXPR WrapperStruct00.var_1_8 [L57] WrapperStruct00.var_1_10 = (WrapperStruct00.var_1_3 - WrapperStruct00.var_1_8) [L64] EXPR WrapperStruct00.var_1_7 [L64] WrapperStruct00.var_1_13 = WrapperStruct00.var_1_7 [L65] EXPR WrapperStruct00.var_1_2 [L65] EXPR WrapperStruct00.var_1_12 [L65] signed long int stepLocal_1 = WrapperStruct00.var_1_2 / WrapperStruct00.var_1_12; [L66] EXPR WrapperStruct00.var_1_10 [L66] EXPR WrapperStruct00.var_1_13 [L66] EXPR WrapperStruct00.var_1_8 [L66] COND TRUE ((WrapperStruct00.var_1_10 * WrapperStruct00.var_1_13) + WrapperStruct00.var_1_8) > stepLocal_1 [L67] WrapperStruct00.var_1_9 [L67] COND TRUE WrapperStruct00.var_1_9 [L68] EXPR WrapperStruct00.var_1_2 [L68] WrapperStruct00.var_1_11 = WrapperStruct00.var_1_2 [L73] EXPR WrapperStruct00.var_1_11 [L73] signed long int stepLocal_0 = WrapperStruct00.var_1_11; [L74] EXPR WrapperStruct00.var_1_2 [L74] EXPR WrapperStruct00.var_1_3 [L74] EXPR WrapperStruct00.var_1_4 [L74] EXPR WrapperStruct00.var_1_5 [L74] EXPR (WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) << (WrapperStruct00.var_1_4 + WrapperStruct00.var_1_5) [L74] COND TRUE ((WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) << (WrapperStruct00.var_1_4 + WrapperStruct00.var_1_5)) <= stepLocal_0 [L75] EXPR WrapperStruct00.var_1_4 [L75] EXPR WrapperStruct00.var_1_8 [L75] EXPR ((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8) [L75] EXPR WrapperStruct00.var_1_8 [L75] EXPR ((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8) [L75] EXPR ((WrapperStruct00.var_1_4) > (((((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8))))) ? (WrapperStruct00.var_1_4) : (((((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8)))) [L75] EXPR WrapperStruct00.var_1_8 [L75] EXPR ((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8) [L75] EXPR WrapperStruct00.var_1_8 [L75] EXPR ((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8) [L75] EXPR ((WrapperStruct00.var_1_4) > (((((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8))))) ? (WrapperStruct00.var_1_4) : (((((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8)))) [L75] WrapperStruct00.var_1_1 = ((((WrapperStruct00.var_1_4) > (((((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8))))) ? (WrapperStruct00.var_1_4) : (((((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8)))))) [L122] RET step() [L123] CALL, EXPR property() [L113] EXPR WrapperStruct00.var_1_2 [L113] EXPR WrapperStruct00.var_1_3 [L113] EXPR WrapperStruct00.var_1_4 [L113] EXPR WrapperStruct00.var_1_5 [L113] EXPR (WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) << (WrapperStruct00.var_1_4 + WrapperStruct00.var_1_5) [L113] EXPR WrapperStruct00.var_1_11 [L113] EXPR (((WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) << (WrapperStruct00.var_1_4 + WrapperStruct00.var_1_5)) <= WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_1 == ((signed char) ((((WrapperStruct00.var_1_4) > (((((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8))))) ? (WrapperStruct00.var_1_4) : (((((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8)))))))) : (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_1 == ((signed char) WrapperStruct00.var_1_5)) : 1) [L113] EXPR WrapperStruct00.var_1_9 [L113] EXPR WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_1 == ((signed char) WrapperStruct00.var_1_5)) : 1 [L113] EXPR WrapperStruct00.var_1_1 [L113] EXPR WrapperStruct00.var_1_5 [L113] EXPR WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_1 == ((signed char) WrapperStruct00.var_1_5)) : 1 [L113] EXPR (((WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) << (WrapperStruct00.var_1_4 + WrapperStruct00.var_1_5)) <= WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_1 == ((signed char) ((((WrapperStruct00.var_1_4) > (((((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8))))) ? (WrapperStruct00.var_1_4) : (((((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8)))))))) : (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_1 == ((signed char) WrapperStruct00.var_1_5)) : 1) [L113] EXPR ((((WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) << (WrapperStruct00.var_1_4 + WrapperStruct00.var_1_5)) <= WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_1 == ((signed char) ((((WrapperStruct00.var_1_4) > (((((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8))))) ? (WrapperStruct00.var_1_4) : (((((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8)))))))) : (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_1 == ((signed char) WrapperStruct00.var_1_5)) : 1)) && ((WrapperStruct00.var_1_7 < WrapperStruct00.var_1_3) ? ((last_1_WrapperStruct00_var_1_11 > WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed long int) (WrapperStruct00.var_1_3 - WrapperStruct00.var_1_8))) : 1) : (((WrapperStruct00.var_1_8 + ((((WrapperStruct00.var_1_2) < 0 ) ? -(WrapperStruct00.var_1_2) : (WrapperStruct00.var_1_2)))) > WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed long int) WrapperStruct00.var_1_8)) : 1)) [L113] EXPR (((((WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) << (WrapperStruct00.var_1_4 + WrapperStruct00.var_1_5)) <= WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_1 == ((signed char) ((((WrapperStruct00.var_1_4) > (((((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8))))) ? (WrapperStruct00.var_1_4) : (((((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8)))))))) : (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_1 == ((signed char) WrapperStruct00.var_1_5)) : 1)) && ((WrapperStruct00.var_1_7 < WrapperStruct00.var_1_3) ? ((last_1_WrapperStruct00_var_1_11 > WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed long int) (WrapperStruct00.var_1_3 - WrapperStruct00.var_1_8))) : 1) : (((WrapperStruct00.var_1_8 + ((((WrapperStruct00.var_1_2) < 0 ) ? -(WrapperStruct00.var_1_2) : (WrapperStruct00.var_1_2)))) > WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed long int) WrapperStruct00.var_1_8)) : 1))) && ((((WrapperStruct00.var_1_10 * WrapperStruct00.var_1_13) + WrapperStruct00.var_1_8) > (WrapperStruct00.var_1_2 / WrapperStruct00.var_1_12)) ? (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_11 == ((signed long int) WrapperStruct00.var_1_2)) : 1) : (WrapperStruct00.var_1_11 == ((signed long int) WrapperStruct00.var_1_7))) [L113] EXPR ((((((WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) << (WrapperStruct00.var_1_4 + WrapperStruct00.var_1_5)) <= WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_1 == ((signed char) ((((WrapperStruct00.var_1_4) > (((((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8))))) ? (WrapperStruct00.var_1_4) : (((((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8)))))))) : (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_1 == ((signed char) WrapperStruct00.var_1_5)) : 1)) && ((WrapperStruct00.var_1_7 < WrapperStruct00.var_1_3) ? ((last_1_WrapperStruct00_var_1_11 > WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed long int) (WrapperStruct00.var_1_3 - WrapperStruct00.var_1_8))) : 1) : (((WrapperStruct00.var_1_8 + ((((WrapperStruct00.var_1_2) < 0 ) ? -(WrapperStruct00.var_1_2) : (WrapperStruct00.var_1_2)))) > WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed long int) WrapperStruct00.var_1_8)) : 1))) && ((((WrapperStruct00.var_1_10 * WrapperStruct00.var_1_13) + WrapperStruct00.var_1_8) > (WrapperStruct00.var_1_2 / WrapperStruct00.var_1_12)) ? (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_11 == ((signed long int) WrapperStruct00.var_1_2)) : 1) : (WrapperStruct00.var_1_11 == ((signed long int) WrapperStruct00.var_1_7)))) && (WrapperStruct00.var_1_13 == ((signed long int) WrapperStruct00.var_1_7)) [L113-L114] return ((((((WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) << (WrapperStruct00.var_1_4 + WrapperStruct00.var_1_5)) <= WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_1 == ((signed char) ((((WrapperStruct00.var_1_4) > (((((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8))))) ? (WrapperStruct00.var_1_4) : (((((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8)))))))) : (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_1 == ((signed char) WrapperStruct00.var_1_5)) : 1)) && ((WrapperStruct00.var_1_7 < WrapperStruct00.var_1_3) ? ((last_1_WrapperStruct00_var_1_11 > WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed long int) (WrapperStruct00.var_1_3 - WrapperStruct00.var_1_8))) : 1) : (((WrapperStruct00.var_1_8 + ((((WrapperStruct00.var_1_2) < 0 ) ? -(WrapperStruct00.var_1_2) : (WrapperStruct00.var_1_2)))) > WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed long int) WrapperStruct00.var_1_8)) : 1))) && ((((WrapperStruct00.var_1_10 * WrapperStruct00.var_1_13) + WrapperStruct00.var_1_8) > (WrapperStruct00.var_1_2 / WrapperStruct00.var_1_12)) ? (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_11 == ((signed long int) WrapperStruct00.var_1_2)) : 1) : (WrapperStruct00.var_1_11 == ((signed long int) WrapperStruct00.var_1_7)))) && (WrapperStruct00.var_1_13 == ((signed long int) WrapperStruct00.var_1_7)) ; [L123] RET, EXPR property() [L123] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L19] reach_error() VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 43 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.3s, OverallIterations: 1, TraceHistogramMax: 17, 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=43occurred 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, 2.9s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 144 NumberOfCodeBlocks, 144 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 04:40:32,365 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-19.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 c3a2d291e2452542ab6962635da2f74c802677a527b9a558cac3248bce42ee2c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 04:40:35,215 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:40:35,344 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-09 04:40:35,353 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:40:35,354 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:40:35,402 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:40:35,404 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:40:35,405 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:40:35,406 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:40:35,408 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:40:35,409 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 04:40:35,410 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 04:40:35,411 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 04:40:35,411 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 04:40:35,412 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 04:40:35,412 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 04:40:35,416 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:40:35,417 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 04:40:35,417 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 04:40:35,418 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 04:40:35,418 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:40:35,421 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 04:40:35,422 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:40:35,422 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 04:40:35,422 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 04:40:35,423 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 04:40:35,423 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:40:35,423 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 04:40:35,424 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 04:40:35,424 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 04:40:35,424 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:40:35,425 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:40:35,425 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 04:40:35,425 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 04:40:35,426 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:40:35,426 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:40:35,426 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:40:35,427 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:40:35,427 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 04:40:35,428 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 04:40:35,429 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 04:40:35,432 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:40:35,432 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 04:40:35,432 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_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3a2d291e2452542ab6962635da2f74c802677a527b9a558cac3248bce42ee2c [2024-11-09 04:40:35,896 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:40:35,924 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:40:35,928 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:40:35,929 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:40:35,930 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:40:35,932 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-19.i Unable to find full path for "g++" [2024-11-09 04:40:38,365 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:40:38,711 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:40:38,712 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-19.i [2024-11-09 04:40:38,726 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/data/534de24d3/b96b57ed4f554c70b7112c139cae8e2e/FLAG530e618d3 [2024-11-09 04:40:38,751 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/data/534de24d3/b96b57ed4f554c70b7112c139cae8e2e [2024-11-09 04:40:38,754 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:40:38,756 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:40:38,760 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:40:38,762 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:40:38,769 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:40:38,770 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:40:38" (1/1) ... [2024-11-09 04:40:38,771 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a99a668 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:40:38, skipping insertion in model container [2024-11-09 04:40:38,771 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:40:38" (1/1) ... [2024-11-09 04:40:38,814 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:40:39,103 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_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-19.i[916,929] [2024-11-09 04:40:39,213 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:40:39,242 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 04:40:39,262 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_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-19.i[916,929] [2024-11-09 04:40:39,317 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:40:39,346 INFO L204 MainTranslator]: Completed translation [2024-11-09 04:40:39,347 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:40:39 WrapperNode [2024-11-09 04:40:39,347 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 04:40:39,348 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 04:40:39,348 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 04:40:39,348 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 04:40:39,358 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:40:39" (1/1) ... [2024-11-09 04:40:39,382 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:40:39" (1/1) ... [2024-11-09 04:40:39,462 INFO L138 Inliner]: procedures = 31, calls = 153, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 443 [2024-11-09 04:40:39,466 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 04:40:39,467 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 04:40:39,467 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 04:40:39,467 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 04:40:39,496 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:40:39" (1/1) ... [2024-11-09 04:40:39,496 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:40:39" (1/1) ... [2024-11-09 04:40:39,511 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:40:39" (1/1) ... [2024-11-09 04:40:39,515 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:40:39" (1/1) ... [2024-11-09 04:40:39,570 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:40:39" (1/1) ... [2024-11-09 04:40:39,579 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:40:39" (1/1) ... [2024-11-09 04:40:39,586 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:40:39" (1/1) ... [2024-11-09 04:40:39,592 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:40:39" (1/1) ... [2024-11-09 04:40:39,601 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 04:40:39,606 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 04:40:39,610 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 04:40:39,610 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 04:40:39,611 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:40:39" (1/1) ... [2024-11-09 04:40:39,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:40:39,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:40:39,678 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 04:40:39,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 04:40:39,720 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 04:40:39,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-11-09 04:40:39,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 04:40:39,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-09 04:40:39,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2024-11-09 04:40:39,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2024-11-09 04:40:39,722 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 04:40:39,723 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 04:40:39,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 04:40:39,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 04:40:39,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-11-09 04:40:39,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-09 04:40:39,868 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 04:40:39,871 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 04:40:40,886 INFO L? ?]: Removed 106 outVars from TransFormulas that were not future-live. [2024-11-09 04:40:40,886 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 04:40:40,917 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 04:40:40,918 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 04:40:40,918 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:40:40 BoogieIcfgContainer [2024-11-09 04:40:40,919 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 04:40:40,924 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 04:40:40,924 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 04:40:40,929 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 04:40:40,930 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:40:38" (1/3) ... [2024-11-09 04:40:40,932 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cd75a8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:40:40, skipping insertion in model container [2024-11-09 04:40:40,932 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:40:39" (2/3) ... [2024-11-09 04:40:40,933 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cd75a8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:40:40, skipping insertion in model container [2024-11-09 04:40:40,934 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:40:40" (3/3) ... [2024-11-09 04:40:40,936 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-19.i [2024-11-09 04:40:40,960 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 04:40:40,961 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 04:40:41,060 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 04:40:41,070 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;@7ecce747, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 04:40:41,071 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 04:40:41,076 INFO L276 IsEmpty]: Start isEmpty. Operand has 97 states, 77 states have (on average 1.3896103896103895) internal successors, (107), 78 states have internal predecessors, (107), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-09 04:40:41,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-09 04:40:41,098 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:40:41,099 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:40:41,100 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:40:41,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:40:41,110 INFO L85 PathProgramCache]: Analyzing trace with hash 68747915, now seen corresponding path program 1 times [2024-11-09 04:40:41,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:40:41,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1971592871] [2024-11-09 04:40:41,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:40:41,132 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 04:40:41,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:40:41,142 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:40:41,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:40:41,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:40:41,529 INFO L255 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 04:40:41,540 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:40:41,628 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 288 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2024-11-09 04:40:41,629 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:40:41,630 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:40:41,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1971592871] [2024-11-09 04:40:41,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1971592871] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:40:41,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:40:41,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 04:40:41,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289023373] [2024-11-09 04:40:41,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:40:41,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 04:40:41,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:40:41,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 04:40:41,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 04:40:41,688 INFO L87 Difference]: Start difference. First operand has 97 states, 77 states have (on average 1.3896103896103895) internal successors, (107), 78 states have internal predecessors, (107), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-09 04:40:41,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:40:41,728 INFO L93 Difference]: Finished difference Result 187 states and 293 transitions. [2024-11-09 04:40:41,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 04:40:41,736 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 129 [2024-11-09 04:40:41,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:40:41,748 INFO L225 Difference]: With dead ends: 187 [2024-11-09 04:40:41,748 INFO L226 Difference]: Without dead ends: 93 [2024-11-09 04:40:41,753 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 128 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 04:40:41,757 INFO L432 NwaCegarLoop]: 132 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, 132 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 04:40:41,759 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 04:40:41,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-09 04:40:41,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2024-11-09 04:40:41,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 74 states have (on average 1.3243243243243243) internal successors, (98), 74 states have internal predecessors, (98), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-09 04:40:41,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 132 transitions. [2024-11-09 04:40:41,820 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 132 transitions. Word has length 129 [2024-11-09 04:40:41,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:40:41,821 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 132 transitions. [2024-11-09 04:40:41,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-09 04:40:41,821 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 132 transitions. [2024-11-09 04:40:41,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-09 04:40:41,825 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:40:41,825 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:40:41,840 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:40:42,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:40:42,026 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:40:42,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:40:42,027 INFO L85 PathProgramCache]: Analyzing trace with hash -164325207, now seen corresponding path program 1 times [2024-11-09 04:40:42,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:40:42,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1338746452] [2024-11-09 04:40:42,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:40:42,029 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 04:40:42,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:40:42,033 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:40:42,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:40:42,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:40:42,384 INFO L255 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 04:40:42,389 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:40:42,504 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-09 04:40:42,504 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:40:42,504 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:40:42,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1338746452] [2024-11-09 04:40:42,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1338746452] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:40:42,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:40:42,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 04:40:42,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664172358] [2024-11-09 04:40:42,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:40:42,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 04:40:42,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:40:42,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 04:40:42,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:40:42,510 INFO L87 Difference]: Start difference. First operand 93 states and 132 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 04:40:42,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:40:42,641 INFO L93 Difference]: Finished difference Result 188 states and 268 transitions. [2024-11-09 04:40:42,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 04:40:42,646 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 129 [2024-11-09 04:40:42,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:40:42,650 INFO L225 Difference]: With dead ends: 188 [2024-11-09 04:40:42,652 INFO L226 Difference]: Without dead ends: 98 [2024-11-09 04:40:42,653 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 125 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 04:40:42,654 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 1 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:40:42,655 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 495 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:40:42,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-09 04:40:42,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 97. [2024-11-09 04:40:42,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 78 states have (on average 1.3076923076923077) internal successors, (102), 78 states have internal predecessors, (102), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-09 04:40:42,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 136 transitions. [2024-11-09 04:40:42,681 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 136 transitions. Word has length 129 [2024-11-09 04:40:42,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:40:42,687 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 136 transitions. [2024-11-09 04:40:42,687 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 04:40:42,687 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 136 transitions. [2024-11-09 04:40:42,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-09 04:40:42,691 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:40:42,691 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:40:42,700 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-09 04:40:42,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:40:42,893 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:40:42,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:40:42,894 INFO L85 PathProgramCache]: Analyzing trace with hash -162478165, now seen corresponding path program 1 times [2024-11-09 04:40:42,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:40:42,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1066948132] [2024-11-09 04:40:42,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:40:42,896 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 04:40:42,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:40:42,900 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:40:42,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:40:43,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:40:43,301 INFO L255 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-09 04:40:43,323 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:40:43,382 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 04:40:43,496 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 29 treesize of output 13 [2024-11-09 04:40:43,576 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 24 treesize of output 23 [2024-11-09 04:40:43,818 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:40:43,820 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 39 treesize of output 26 [2024-11-09 04:40:44,025 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:40:44,026 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 39 treesize of output 26 [2024-11-09 04:40:44,355 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:40:44,356 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 51 [2024-11-09 04:40:44,499 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:40:44,500 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 64 treesize of output 75 [2024-11-09 04:40:44,689 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:40:44,690 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 81 treesize of output 89 [2024-11-09 04:40:45,054 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:40:45,054 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 96 treesize of output 101 [2024-11-09 04:40:45,461 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:40:45,462 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 136 treesize of output 58 [2024-11-09 04:40:45,611 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 338 proven. 27 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2024-11-09 04:40:45,615 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:40:45,997 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-09 04:40:45,997 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:40:45,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1066948132] [2024-11-09 04:40:45,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1066948132] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 04:40:45,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 04:40:45,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [14] total 17 [2024-11-09 04:40:45,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397536265] [2024-11-09 04:40:45,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:40:45,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 04:40:45,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:40:46,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 04:40:46,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2024-11-09 04:40:46,001 INFO L87 Difference]: Start difference. First operand 97 states and 136 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 04:40:47,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:40:47,095 INFO L93 Difference]: Finished difference Result 251 states and 349 transitions. [2024-11-09 04:40:47,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 04:40:47,096 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 129 [2024-11-09 04:40:47,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:40:47,099 INFO L225 Difference]: With dead ends: 251 [2024-11-09 04:40:47,099 INFO L226 Difference]: Without dead ends: 157 [2024-11-09 04:40:47,100 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=61, Invalid=319, Unknown=0, NotChecked=0, Total=380 [2024-11-09 04:40:47,102 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 65 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 04:40:47,103 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 586 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 04:40:47,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2024-11-09 04:40:47,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 154. [2024-11-09 04:40:47,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 128 states have (on average 1.296875) internal successors, (166), 129 states have internal predecessors, (166), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-09 04:40:47,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 212 transitions. [2024-11-09 04:40:47,124 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 212 transitions. Word has length 129 [2024-11-09 04:40:47,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:40:47,125 INFO L471 AbstractCegarLoop]: Abstraction has 154 states and 212 transitions. [2024-11-09 04:40:47,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 04:40:47,125 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 212 transitions. [2024-11-09 04:40:47,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-09 04:40:47,128 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:40:47,128 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:40:47,142 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:40:47,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:40:47,329 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:40:47,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:40:47,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1442341843, now seen corresponding path program 1 times [2024-11-09 04:40:47,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:40:47,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [686562234] [2024-11-09 04:40:47,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:40:47,332 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 04:40:47,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:40:47,336 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:40:47,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:40:47,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:40:47,630 INFO L255 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 04:40:47,635 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:40:47,704 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-09 04:40:47,704 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:40:47,705 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:40:47,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [686562234] [2024-11-09 04:40:47,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [686562234] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:40:47,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:40:47,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 04:40:47,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734046571] [2024-11-09 04:40:47,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:40:47,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 04:40:47,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:40:47,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 04:40:47,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:40:47,709 INFO L87 Difference]: Start difference. First operand 154 states and 212 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 04:40:48,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:40:48,811 INFO L93 Difference]: Finished difference Result 374 states and 514 transitions. [2024-11-09 04:40:48,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 04:40:48,815 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 129 [2024-11-09 04:40:48,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:40:48,819 INFO L225 Difference]: With dead ends: 374 [2024-11-09 04:40:48,819 INFO L226 Difference]: Without dead ends: 223 [2024-11-09 04:40:48,820 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 04:40:48,821 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 78 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 04:40:48,822 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 514 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 04:40:48,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2024-11-09 04:40:48,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 220. [2024-11-09 04:40:48,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 181 states have (on average 1.281767955801105) internal successors, (232), 183 states have internal predecessors, (232), 35 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (35), 33 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-09 04:40:48,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 302 transitions. [2024-11-09 04:40:48,848 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 302 transitions. Word has length 129 [2024-11-09 04:40:48,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:40:48,849 INFO L471 AbstractCegarLoop]: Abstraction has 220 states and 302 transitions. [2024-11-09 04:40:48,849 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 04:40:48,849 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 302 transitions. [2024-11-09 04:40:48,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-09 04:40:48,852 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:40:48,852 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:40:48,868 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:40:49,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:40:49,053 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:40:49,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:40:49,054 INFO L85 PathProgramCache]: Analyzing trace with hash -90234188, now seen corresponding path program 1 times [2024-11-09 04:40:49,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:40:49,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [135784636] [2024-11-09 04:40:49,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:40:49,055 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 04:40:49,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:40:49,056 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:40:49,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:40:49,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:40:49,428 INFO L255 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 67 conjuncts are in the unsatisfiable core [2024-11-09 04:40:49,442 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:40:49,451 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 69 treesize of output 68 [2024-11-09 04:40:49,770 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 98 treesize of output 82 [2024-11-09 04:40:50,190 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 31 treesize of output 15 [2024-11-09 04:40:50,799 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:40:50,800 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 42 treesize of output 29 [2024-11-09 04:40:51,603 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:40:51,604 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 51 treesize of output 41 [2024-11-09 04:40:52,647 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:40:52,648 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 60 treesize of output 53 [2024-11-09 04:40:53,925 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:40:53,925 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 66 treesize of output 77 [2024-11-09 04:40:54,886 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:40:54,888 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 81 treesize of output 80 [2024-11-09 04:40:55,583 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:40:55,584 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 81 treesize of output 80 [2024-11-09 04:40:57,145 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:40:57,145 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 124 treesize of output 108 [2024-11-09 04:40:57,481 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:40:57,481 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 130 treesize of output 117 [2024-11-09 04:40:57,823 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:40:57,824 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 142 treesize of output 132 [2024-11-09 04:40:59,436 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:40:59,437 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 198 treesize of output 150 [2024-11-09 04:41:00,404 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 313 proven. 138 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2024-11-09 04:41:00,404 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:41:01,857 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-09 04:41:01,858 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:41:01,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [135784636] [2024-11-09 04:41:01,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [135784636] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 04:41:01,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 04:41:01,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [33] total 38 [2024-11-09 04:41:01,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512459010] [2024-11-09 04:41:01,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:41:01,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 04:41:01,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:41:01,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 04:41:01,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=196, Invalid=1210, Unknown=0, NotChecked=0, Total=1406 [2024-11-09 04:41:01,863 INFO L87 Difference]: Start difference. First operand 220 states and 302 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 04:41:03,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:41:03,948 INFO L93 Difference]: Finished difference Result 479 states and 656 transitions. [2024-11-09 04:41:03,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 04:41:03,950 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 130 [2024-11-09 04:41:03,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:41:03,953 INFO L225 Difference]: With dead ends: 479 [2024-11-09 04:41:03,954 INFO L226 Difference]: Without dead ends: 262 [2024-11-09 04:41:03,955 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=209, Invalid=1351, Unknown=0, NotChecked=0, Total=1560 [2024-11-09 04:41:03,956 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 88 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-09 04:41:03,957 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 456 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-09 04:41:03,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2024-11-09 04:41:03,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 220. [2024-11-09 04:41:03,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 181 states have (on average 1.270718232044199) internal successors, (230), 183 states have internal predecessors, (230), 35 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (35), 33 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-09 04:41:03,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 300 transitions. [2024-11-09 04:41:03,991 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 300 transitions. Word has length 130 [2024-11-09 04:41:03,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:41:03,992 INFO L471 AbstractCegarLoop]: Abstraction has 220 states and 300 transitions. [2024-11-09 04:41:03,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 04:41:03,993 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 300 transitions. [2024-11-09 04:41:03,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-09 04:41:03,995 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:41:03,995 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:41:04,005 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:41:04,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:41:04,196 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:41:04,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:41:04,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1912119816, now seen corresponding path program 1 times [2024-11-09 04:41:04,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:41:04,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1782063980] [2024-11-09 04:41:04,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:41:04,198 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 04:41:04,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:41:04,200 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:41:04,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:41:04,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:41:04,536 INFO L255 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 64 conjuncts are in the unsatisfiable core [2024-11-09 04:41:04,546 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:41:04,571 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 69 treesize of output 68 [2024-11-09 04:41:04,802 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 98 treesize of output 82 [2024-11-09 04:41:05,146 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 31 treesize of output 15 [2024-11-09 04:41:05,654 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:41:05,654 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 42 treesize of output 29 [2024-11-09 04:41:06,330 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:41:06,330 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 51 treesize of output 41 [2024-11-09 04:41:07,150 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:41:07,151 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 60 treesize of output 53 [2024-11-09 04:41:08,282 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:41:08,283 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 66 treesize of output 77 [2024-11-09 04:41:09,135 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:41:09,136 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 81 treesize of output 80 [2024-11-09 04:41:09,699 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:41:09,700 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 81 treesize of output 80 [2024-11-09 04:41:11,035 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:41:11,036 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 105 treesize of output 101 [2024-11-09 04:41:11,322 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:41:11,322 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 111 treesize of output 110 [2024-11-09 04:41:11,672 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:41:11,673 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 123 treesize of output 125 [2024-11-09 04:41:13,902 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:41:13,902 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 188 treesize of output 146 [2024-11-09 04:41:14,362 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:41:14,362 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 220 treesize of output 82 [2024-11-09 04:41:14,679 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 313 proven. 138 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2024-11-09 04:41:14,679 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:41:16,103 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-09 04:41:16,103 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:41:16,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1782063980] [2024-11-09 04:41:16,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1782063980] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 04:41:16,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 04:41:16,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [33] total 38 [2024-11-09 04:41:16,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932638571] [2024-11-09 04:41:16,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:41:16,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 04:41:16,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:41:16,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 04:41:16,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=1215, Unknown=0, NotChecked=0, Total=1406 [2024-11-09 04:41:16,107 INFO L87 Difference]: Start difference. First operand 220 states and 300 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 04:41:18,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:41:18,124 INFO L93 Difference]: Finished difference Result 475 states and 647 transitions. [2024-11-09 04:41:18,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 04:41:18,127 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 131 [2024-11-09 04:41:18,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:41:18,130 INFO L225 Difference]: With dead ends: 475 [2024-11-09 04:41:18,130 INFO L226 Difference]: Without dead ends: 258 [2024-11-09 04:41:18,131 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 223 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 496 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=205, Invalid=1355, Unknown=0, NotChecked=0, Total=1560 [2024-11-09 04:41:18,132 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 136 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-09 04:41:18,133 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 418 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-09 04:41:18,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2024-11-09 04:41:18,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 223. [2024-11-09 04:41:18,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 184 states have (on average 1.266304347826087) internal successors, (233), 186 states have internal predecessors, (233), 35 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (35), 33 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-09 04:41:18,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 303 transitions. [2024-11-09 04:41:18,155 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 303 transitions. Word has length 131 [2024-11-09 04:41:18,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:41:18,156 INFO L471 AbstractCegarLoop]: Abstraction has 223 states and 303 transitions. [2024-11-09 04:41:18,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 04:41:18,156 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 303 transitions. [2024-11-09 04:41:18,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-09 04:41:18,159 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:41:18,159 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:41:18,170 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:41:18,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:41:18,360 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:41:18,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:41:18,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1830693966, now seen corresponding path program 1 times [2024-11-09 04:41:18,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:41:18,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1584506656] [2024-11-09 04:41:18,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:41:18,361 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 04:41:18,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:41:18,365 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:41:18,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:41:18,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:41:18,609 INFO L255 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 04:41:18,612 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:41:18,645 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-09 04:41:18,701 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-09 04:41:18,701 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:41:18,702 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:41:18,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1584506656] [2024-11-09 04:41:18,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1584506656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:41:18,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:41:18,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 04:41:18,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329340875] [2024-11-09 04:41:18,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:41:18,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 04:41:18,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:41:18,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 04:41:18,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:41:18,704 INFO L87 Difference]: Start difference. First operand 223 states and 303 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 04:41:20,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:41:20,149 INFO L93 Difference]: Finished difference Result 604 states and 817 transitions. [2024-11-09 04:41:20,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 04:41:20,151 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 132 [2024-11-09 04:41:20,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:41:20,156 INFO L225 Difference]: With dead ends: 604 [2024-11-09 04:41:20,157 INFO L226 Difference]: Without dead ends: 384 [2024-11-09 04:41:20,158 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 128 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 04:41:20,158 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 68 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 04:41:20,159 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 367 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 04:41:20,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2024-11-09 04:41:20,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 380. [2024-11-09 04:41:20,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 312 states have (on average 1.2467948717948718) internal successors, (389), 317 states have internal predecessors, (389), 61 states have call successors, (61), 6 states have call predecessors, (61), 6 states have return successors, (61), 56 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-09 04:41:20,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 511 transitions. [2024-11-09 04:41:20,207 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 511 transitions. Word has length 132 [2024-11-09 04:41:20,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:41:20,207 INFO L471 AbstractCegarLoop]: Abstraction has 380 states and 511 transitions. [2024-11-09 04:41:20,208 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 04:41:20,208 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 511 transitions. [2024-11-09 04:41:20,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-09 04:41:20,212 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:41:20,213 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:41:20,222 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2024-11-09 04:41:20,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:41:20,413 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:41:20,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:41:20,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1243887952, now seen corresponding path program 1 times [2024-11-09 04:41:20,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:41:20,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1987528825] [2024-11-09 04:41:20,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:41:20,419 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 04:41:20,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:41:20,420 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:41:20,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:41:20,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:41:20,778 INFO L255 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 65 conjuncts are in the unsatisfiable core [2024-11-09 04:41:20,787 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:41:20,794 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 69 treesize of output 68 [2024-11-09 04:41:21,135 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 98 treesize of output 82 [2024-11-09 04:41:21,570 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 25 [2024-11-09 04:41:22,234 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:41:22,234 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 52 treesize of output 33 [2024-11-09 04:41:23,027 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:41:23,027 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 61 treesize of output 45 [2024-11-09 04:41:24,027 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:41:24,028 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 57 [2024-11-09 04:41:25,267 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:41:25,267 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 76 treesize of output 81 [2024-11-09 04:41:26,073 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:41:26,074 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 75 treesize of output 89 [2024-11-09 04:41:27,005 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:41:27,005 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 90 treesize of output 92 [2024-11-09 04:41:28,776 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:41:28,777 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 133 treesize of output 120 [2024-11-09 04:41:29,127 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:41:29,127 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 139 treesize of output 129 [2024-11-09 04:41:29,522 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:41:29,522 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 151 treesize of output 144 [2024-11-09 04:41:31,272 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:41:31,273 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 207 treesize of output 162 [2024-11-09 04:41:31,854 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:41:31,855 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 239 treesize of output 89 [2024-11-09 04:41:32,169 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 358 proven. 138 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-09 04:41:32,169 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:41:33,514 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-09 04:41:33,515 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:41:33,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1987528825] [2024-11-09 04:41:33,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1987528825] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 04:41:33,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 04:41:33,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [35] total 39 [2024-11-09 04:41:33,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383958624] [2024-11-09 04:41:33,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:41:33,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 04:41:33,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:41:33,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 04:41:33,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=223, Invalid=1259, Unknown=0, NotChecked=0, Total=1482 [2024-11-09 04:41:33,517 INFO L87 Difference]: Start difference. First operand 380 states and 511 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 04:41:34,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:41:34,600 INFO L93 Difference]: Finished difference Result 641 states and 864 transitions. [2024-11-09 04:41:34,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 04:41:34,602 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 132 [2024-11-09 04:41:34,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:41:34,606 INFO L225 Difference]: With dead ends: 641 [2024-11-09 04:41:34,606 INFO L226 Difference]: Without dead ends: 264 [2024-11-09 04:41:34,608 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 223 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=228, Invalid=1332, Unknown=0, NotChecked=0, Total=1560 [2024-11-09 04:41:34,608 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 80 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 04:41:34,609 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 305 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 04:41:34,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2024-11-09 04:41:34,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 260. [2024-11-09 04:41:34,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 210 states have (on average 1.2428571428571429) internal successors, (261), 213 states have internal predecessors, (261), 45 states have call successors, (45), 4 states have call predecessors, (45), 4 states have return successors, (45), 42 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-09 04:41:34,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 351 transitions. [2024-11-09 04:41:34,641 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 351 transitions. Word has length 132 [2024-11-09 04:41:34,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:41:34,643 INFO L471 AbstractCegarLoop]: Abstraction has 260 states and 351 transitions. [2024-11-09 04:41:34,643 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 04:41:34,643 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 351 transitions. [2024-11-09 04:41:34,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-09 04:41:34,646 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:41:34,647 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:41:34,657 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:41:34,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:41:34,847 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:41:34,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:41:34,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1505449479, now seen corresponding path program 1 times [2024-11-09 04:41:34,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:41:34,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1996905083] [2024-11-09 04:41:34,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:41:34,849 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 04:41:34,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:41:34,850 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:41:34,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:41:35,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:41:35,169 INFO L255 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-09 04:41:35,175 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:41:35,179 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 04:41:35,242 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 29 treesize of output 13 [2024-11-09 04:41:35,294 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 24 treesize of output 23 [2024-11-09 04:41:35,466 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:41:35,466 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 39 treesize of output 26 [2024-11-09 04:41:35,584 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:41:35,584 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 34 treesize of output 36 [2024-11-09 04:41:35,811 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:41:35,811 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 49 treesize of output 39 [2024-11-09 04:41:36,148 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:41:36,149 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 62 treesize of output 73 [2024-11-09 04:41:36,271 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:41:36,271 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 79 treesize of output 87 [2024-11-09 04:41:36,421 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:41:36,422 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 96 treesize of output 101 [2024-11-09 04:41:37,009 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:41:37,010 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 111 treesize of output 113 [2024-11-09 04:41:37,588 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:41:37,589 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 124 treesize of output 44 [2024-11-09 04:41:37,761 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 398 proven. 33 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-11-09 04:41:37,761 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:41:38,245 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-09 04:41:38,245 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:41:38,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1996905083] [2024-11-09 04:41:38,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1996905083] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 04:41:38,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 04:41:38,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [17] total 22 [2024-11-09 04:41:38,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5524154] [2024-11-09 04:41:38,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:41:38,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 04:41:38,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:41:38,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 04:41:38,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2024-11-09 04:41:38,248 INFO L87 Difference]: Start difference. First operand 260 states and 351 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 04:41:39,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:41:39,827 INFO L93 Difference]: Finished difference Result 614 states and 825 transitions. [2024-11-09 04:41:39,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 04:41:39,828 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 132 [2024-11-09 04:41:39,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:41:39,831 INFO L225 Difference]: With dead ends: 614 [2024-11-09 04:41:39,831 INFO L226 Difference]: Without dead ends: 357 [2024-11-09 04:41:39,833 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=100, Invalid=550, Unknown=0, NotChecked=0, Total=650 [2024-11-09 04:41:39,833 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 64 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 830 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 04:41:39,834 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 830 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 04:41:39,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2024-11-09 04:41:39,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 353. [2024-11-09 04:41:39,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 293 states have (on average 1.2491467576791808) internal successors, (366), 298 states have internal predecessors, (366), 53 states have call successors, (53), 6 states have call predecessors, (53), 6 states have return successors, (53), 48 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-09 04:41:39,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 472 transitions. [2024-11-09 04:41:39,860 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 472 transitions. Word has length 132 [2024-11-09 04:41:39,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:41:39,861 INFO L471 AbstractCegarLoop]: Abstraction has 353 states and 472 transitions. [2024-11-09 04:41:39,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 04:41:39,861 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 472 transitions. [2024-11-09 04:41:39,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-09 04:41:39,864 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:41:39,864 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:41:39,874 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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)] Ended with exit code 0 [2024-11-09 04:41:40,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:41:40,065 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:41:40,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:41:40,065 INFO L85 PathProgramCache]: Analyzing trace with hash 769496130, now seen corresponding path program 1 times [2024-11-09 04:41:40,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:41:40,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [536005927] [2024-11-09 04:41:40,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:41:40,066 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 04:41:40,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:41:40,070 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:41:40,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:41:40,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:41:40,415 INFO L255 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-09 04:41:40,423 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:41:40,428 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-09 04:41:40,641 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 41 treesize of output 19 [2024-11-09 04:41:40,825 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 41 treesize of output 19 [2024-11-09 04:41:41,000 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 41 treesize of output 19 [2024-11-09 04:41:41,167 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 19 [2024-11-09 04:41:41,521 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:41:41,521 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 52 treesize of output 33 [2024-11-09 04:41:41,792 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:41:41,792 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 52 treesize of output 33 [2024-11-09 04:41:42,194 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:41:42,195 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 65 treesize of output 49 [2024-11-09 04:41:42,332 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:41:42,333 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 82 treesize of output 72 [2024-11-09 04:41:42,520 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:41:42,520 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 99 treesize of output 86 [2024-11-09 04:41:42,845 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:41:42,846 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 110 treesize of output 89 [2024-11-09 04:41:43,412 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 359 proven. 54 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2024-11-09 04:41:43,412 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:41:43,813 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-09 04:41:43,813 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:41:43,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [536005927] [2024-11-09 04:41:43,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [536005927] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 04:41:43,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 04:41:43,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [18] total 21 [2024-11-09 04:41:43,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43231668] [2024-11-09 04:41:43,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:41:43,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 04:41:43,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:41:43,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 04:41:43,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2024-11-09 04:41:43,816 INFO L87 Difference]: Start difference. First operand 353 states and 472 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 04:41:45,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:41:45,195 INFO L93 Difference]: Finished difference Result 1012 states and 1337 transitions. [2024-11-09 04:41:45,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 04:41:45,196 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 133 [2024-11-09 04:41:45,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:41:45,201 INFO L225 Difference]: With dead ends: 1012 [2024-11-09 04:41:45,201 INFO L226 Difference]: Without dead ends: 662 [2024-11-09 04:41:45,202 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 241 SyntacticMatches, 4 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=86, Invalid=514, Unknown=0, NotChecked=0, Total=600 [2024-11-09 04:41:45,203 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 62 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:41:45,204 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 549 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 04:41:45,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2024-11-09 04:41:45,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 654. [2024-11-09 04:41:45,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 576 states have (on average 1.2482638888888888) internal successors, (719), 587 states have internal predecessors, (719), 65 states have call successors, (65), 12 states have call predecessors, (65), 12 states have return successors, (65), 54 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-09 04:41:45,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 849 transitions. [2024-11-09 04:41:45,245 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 849 transitions. Word has length 133 [2024-11-09 04:41:45,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:41:45,246 INFO L471 AbstractCegarLoop]: Abstraction has 654 states and 849 transitions. [2024-11-09 04:41:45,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 04:41:45,247 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 849 transitions. [2024-11-09 04:41:45,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-09 04:41:45,249 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:41:45,249 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:41:45,258 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2024-11-09 04:41:45,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:41:45,450 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:41:45,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:41:45,451 INFO L85 PathProgramCache]: Analyzing trace with hash -678840110, now seen corresponding path program 1 times [2024-11-09 04:41:45,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:41:45,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1011206878] [2024-11-09 04:41:45,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:41:45,452 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 04:41:45,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:41:45,456 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:41:45,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-11-09 04:41:45,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:41:45,716 INFO L255 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 04:41:45,718 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:41:45,768 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 23 treesize of output 11 [2024-11-09 04:41:45,806 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-09 04:41:45,806 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:41:45,807 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:41:45,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1011206878] [2024-11-09 04:41:45,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1011206878] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:41:45,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:41:45,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 04:41:45,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807984996] [2024-11-09 04:41:45,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:41:45,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 04:41:45,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:41:45,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 04:41:45,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:41:45,809 INFO L87 Difference]: Start difference. First operand 654 states and 849 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 04:41:47,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:41:47,568 INFO L93 Difference]: Finished difference Result 1732 states and 2245 transitions. [2024-11-09 04:41:47,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 04:41:47,569 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 133 [2024-11-09 04:41:47,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:41:47,576 INFO L225 Difference]: With dead ends: 1732 [2024-11-09 04:41:47,576 INFO L226 Difference]: Without dead ends: 1081 [2024-11-09 04:41:47,578 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 129 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 04:41:47,579 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 81 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-09 04:41:47,579 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 363 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-09 04:41:47,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1081 states. [2024-11-09 04:41:47,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1081 to 694. [2024-11-09 04:41:47,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 616 states have (on average 1.2613636363636365) internal successors, (777), 627 states have internal predecessors, (777), 65 states have call successors, (65), 12 states have call predecessors, (65), 12 states have return successors, (65), 54 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-09 04:41:47,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 907 transitions. [2024-11-09 04:41:47,632 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 907 transitions. Word has length 133 [2024-11-09 04:41:47,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:41:47,633 INFO L471 AbstractCegarLoop]: Abstraction has 694 states and 907 transitions. [2024-11-09 04:41:47,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 04:41:47,634 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 907 transitions. [2024-11-09 04:41:47,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-09 04:41:47,636 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:41:47,636 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:41:47,647 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2024-11-09 04:41:47,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:41:47,838 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:41:47,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:41:47,838 INFO L85 PathProgramCache]: Analyzing trace with hash 2027779284, now seen corresponding path program 1 times [2024-11-09 04:41:47,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:41:47,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1956780093] [2024-11-09 04:41:47,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:41:47,839 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 04:41:47,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:41:47,843 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:41:47,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-11-09 04:41:48,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:41:48,233 INFO L255 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 62 conjuncts are in the unsatisfiable core [2024-11-09 04:41:48,243 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:41:48,248 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 68 [2024-11-09 04:41:48,492 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 98 treesize of output 82 [2024-11-09 04:41:48,814 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 25 [2024-11-09 04:41:49,463 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:41:49,464 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 52 treesize of output 33 [2024-11-09 04:41:50,362 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:41:50,362 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 61 treesize of output 45 [2024-11-09 04:41:51,500 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:41:51,501 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 57 [2024-11-09 04:41:52,939 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:41:52,939 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 81 treesize of output 71 [2024-11-09 04:41:53,446 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:41:53,447 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 81 treesize of output 71 [2024-11-09 04:41:54,150 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:41:54,150 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 81 treesize of output 71 [2024-11-09 04:41:55,482 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:41:55,482 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 105 treesize of output 101 [2024-11-09 04:41:55,756 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:41:55,756 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 111 treesize of output 110 [2024-11-09 04:41:56,072 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:41:56,072 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 112 treesize of output 120 [2024-11-09 04:41:57,967 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:41:57,967 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 167 treesize of output 137 [2024-11-09 04:41:58,469 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:41:58,470 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 199 treesize of output 73 [2024-11-09 04:41:58,807 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 318 proven. 138 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-09 04:41:58,807 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:41:59,843 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-09 04:41:59,843 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:41:59,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1956780093] [2024-11-09 04:41:59,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1956780093] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 04:41:59,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 04:41:59,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [32] total 36 [2024-11-09 04:41:59,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145402052] [2024-11-09 04:41:59,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:41:59,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 04:41:59,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:41:59,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 04:41:59,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=1069, Unknown=0, NotChecked=0, Total=1260 [2024-11-09 04:41:59,845 INFO L87 Difference]: Start difference. First operand 694 states and 907 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 04:42:00,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:42:00,911 INFO L93 Difference]: Finished difference Result 1369 states and 1790 transitions. [2024-11-09 04:42:00,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 04:42:00,914 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 133 [2024-11-09 04:42:00,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:42:00,919 INFO L225 Difference]: With dead ends: 1369 [2024-11-09 04:42:00,919 INFO L226 Difference]: Without dead ends: 678 [2024-11-09 04:42:00,921 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 224 SyntacticMatches, 6 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 445 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=196, Invalid=1136, Unknown=0, NotChecked=0, Total=1332 [2024-11-09 04:42:00,922 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 92 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 04:42:00,922 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 329 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 04:42:00,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2024-11-09 04:42:00,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 674. [2024-11-09 04:42:00,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 674 states, 596 states have (on average 1.2567114093959733) internal successors, (749), 607 states have internal predecessors, (749), 65 states have call successors, (65), 12 states have call predecessors, (65), 12 states have return successors, (65), 54 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-09 04:42:00,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 879 transitions. [2024-11-09 04:42:00,963 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 879 transitions. Word has length 133 [2024-11-09 04:42:00,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:42:00,964 INFO L471 AbstractCegarLoop]: Abstraction has 674 states and 879 transitions. [2024-11-09 04:42:00,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 04:42:00,964 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 879 transitions. [2024-11-09 04:42:00,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-09 04:42:00,967 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:42:00,967 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:42:00,977 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2024-11-09 04:42:01,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:42:01,169 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:42:01,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:42:01,169 INFO L85 PathProgramCache]: Analyzing trace with hash 635482624, now seen corresponding path program 1 times [2024-11-09 04:42:01,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:42:01,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1784057625] [2024-11-09 04:42:01,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:42:01,170 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 04:42:01,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:42:01,174 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:42:01,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:42:01,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:42:01,515 INFO L255 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-09 04:42:01,521 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:42:01,527 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 69 treesize of output 68 [2024-11-09 04:42:01,653 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 90 treesize of output 82 [2024-11-09 04:42:01,839 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 04:42:02,102 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 31 treesize of output 15 [2024-11-09 04:42:02,211 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 25 [2024-11-09 04:42:02,458 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:02,458 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 28 [2024-11-09 04:42:03,016 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:03,016 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 04:42:03,155 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:03,156 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 59 [2024-11-09 04:42:03,384 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:03,384 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 83 treesize of output 62 [2024-11-09 04:42:03,638 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:03,638 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 78 treesize of output 30 [2024-11-09 04:42:03,732 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 326 proven. 21 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2024-11-09 04:42:03,732 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:42:04,090 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-09 04:42:04,090 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:42:04,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1784057625] [2024-11-09 04:42:04,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1784057625] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 04:42:04,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 04:42:04,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13] total 17 [2024-11-09 04:42:04,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075662269] [2024-11-09 04:42:04,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:42:04,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 04:42:04,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:42:04,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 04:42:04,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2024-11-09 04:42:04,093 INFO L87 Difference]: Start difference. First operand 674 states and 879 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 04:42:05,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:42:05,189 INFO L93 Difference]: Finished difference Result 1586 states and 2070 transitions. [2024-11-09 04:42:05,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 04:42:05,190 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 133 [2024-11-09 04:42:05,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:42:05,195 INFO L225 Difference]: With dead ends: 1586 [2024-11-09 04:42:05,195 INFO L226 Difference]: Without dead ends: 915 [2024-11-09 04:42:05,197 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2024-11-09 04:42:05,198 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 50 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 04:42:05,198 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 436 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 04:42:05,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 915 states. [2024-11-09 04:42:05,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 915 to 761. [2024-11-09 04:42:05,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 761 states, 683 states have (on average 1.2723279648609078) internal successors, (869), 694 states have internal predecessors, (869), 65 states have call successors, (65), 12 states have call predecessors, (65), 12 states have return successors, (65), 54 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-09 04:42:05,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 761 states to 761 states and 999 transitions. [2024-11-09 04:42:05,250 INFO L78 Accepts]: Start accepts. Automaton has 761 states and 999 transitions. Word has length 133 [2024-11-09 04:42:05,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:42:05,251 INFO L471 AbstractCegarLoop]: Abstraction has 761 states and 999 transitions. [2024-11-09 04:42:05,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 04:42:05,251 INFO L276 IsEmpty]: Start isEmpty. Operand 761 states and 999 transitions. [2024-11-09 04:42:05,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-09 04:42:05,255 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:42:05,256 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:42:05,265 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:42:05,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:42:05,457 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:42:05,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:42:05,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1392567267, now seen corresponding path program 1 times [2024-11-09 04:42:05,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:42:05,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2042368803] [2024-11-09 04:42:05,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:42:05,458 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 04:42:05,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:42:05,459 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:42:05,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:42:05,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:42:05,816 INFO L255 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-09 04:42:05,823 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:42:05,827 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 04:42:05,893 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 29 treesize of output 13 [2024-11-09 04:42:05,944 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 24 treesize of output 23 [2024-11-09 04:42:06,100 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 26 [2024-11-09 04:42:06,487 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:06,488 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 40 [2024-11-09 04:42:06,679 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:06,679 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 40 [2024-11-09 04:42:06,989 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:06,989 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 63 treesize of output 65 [2024-11-09 04:42:07,106 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:07,106 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 80 treesize of output 79 [2024-11-09 04:42:07,259 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:07,260 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 92 treesize of output 94 [2024-11-09 04:42:08,116 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:08,117 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 109 treesize of output 97 [2024-11-09 04:42:08,458 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:08,459 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 114 treesize of output 42 [2024-11-09 04:42:08,539 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 381 proven. 48 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2024-11-09 04:42:08,539 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:42:09,031 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-09 04:42:09,031 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:42:09,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2042368803] [2024-11-09 04:42:09,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2042368803] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 04:42:09,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 04:42:09,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [19] total 24 [2024-11-09 04:42:09,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417084695] [2024-11-09 04:42:09,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:42:09,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 04:42:09,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:42:09,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 04:42:09,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=445, Unknown=0, NotChecked=0, Total=552 [2024-11-09 04:42:09,033 INFO L87 Difference]: Start difference. First operand 761 states and 999 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 04:42:10,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:42:10,384 INFO L93 Difference]: Finished difference Result 1625 states and 2127 transitions. [2024-11-09 04:42:10,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 04:42:10,385 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 134 [2024-11-09 04:42:10,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:42:10,389 INFO L225 Difference]: With dead ends: 1625 [2024-11-09 04:42:10,400 INFO L226 Difference]: Without dead ends: 867 [2024-11-09 04:42:10,401 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=132, Invalid=570, Unknown=0, NotChecked=0, Total=702 [2024-11-09 04:42:10,402 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 108 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:42:10,402 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 497 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 04:42:10,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 867 states. [2024-11-09 04:42:10,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 867 to 764. [2024-11-09 04:42:10,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 764 states, 686 states have (on average 1.271137026239067) internal successors, (872), 697 states have internal predecessors, (872), 65 states have call successors, (65), 12 states have call predecessors, (65), 12 states have return successors, (65), 54 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-09 04:42:10,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 764 states to 764 states and 1002 transitions. [2024-11-09 04:42:10,459 INFO L78 Accepts]: Start accepts. Automaton has 764 states and 1002 transitions. Word has length 134 [2024-11-09 04:42:10,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:42:10,460 INFO L471 AbstractCegarLoop]: Abstraction has 764 states and 1002 transitions. [2024-11-09 04:42:10,460 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 04:42:10,460 INFO L276 IsEmpty]: Start isEmpty. Operand 764 states and 1002 transitions. [2024-11-09 04:42:10,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-09 04:42:10,463 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:42:10,463 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:42:10,474 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:42:10,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:42:10,664 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:42:10,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:42:10,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1035730337, now seen corresponding path program 1 times [2024-11-09 04:42:10,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:42:10,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [287072082] [2024-11-09 04:42:10,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:42:10,665 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 04:42:10,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:42:10,667 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:42:10,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:42:11,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:42:11,028 INFO L255 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 04:42:11,031 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:42:11,039 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 04:42:11,086 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 16 [2024-11-09 04:42:11,103 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 23 treesize of output 11 [2024-11-09 04:42:11,151 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-09 04:42:11,151 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:42:11,152 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:42:11,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [287072082] [2024-11-09 04:42:11,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [287072082] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:42:11,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:42:11,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 04:42:11,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908662692] [2024-11-09 04:42:11,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:42:11,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 04:42:11,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:42:11,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 04:42:11,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:42:11,154 INFO L87 Difference]: Start difference. First operand 764 states and 1002 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 04:42:12,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:42:12,467 INFO L93 Difference]: Finished difference Result 1709 states and 2226 transitions. [2024-11-09 04:42:12,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 04:42:12,468 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 134 [2024-11-09 04:42:12,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:42:12,476 INFO L225 Difference]: With dead ends: 1709 [2024-11-09 04:42:12,476 INFO L226 Difference]: Without dead ends: 948 [2024-11-09 04:42:12,478 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 130 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 04:42:12,479 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 73 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:42:12,479 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 367 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 04:42:12,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2024-11-09 04:42:12,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 752. [2024-11-09 04:42:12,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 752 states, 674 states have (on average 1.2492581602373887) internal successors, (842), 685 states have internal predecessors, (842), 65 states have call successors, (65), 12 states have call predecessors, (65), 12 states have return successors, (65), 54 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-09 04:42:12,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 972 transitions. [2024-11-09 04:42:12,527 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 972 transitions. Word has length 134 [2024-11-09 04:42:12,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:42:12,528 INFO L471 AbstractCegarLoop]: Abstraction has 752 states and 972 transitions. [2024-11-09 04:42:12,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 04:42:12,528 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 972 transitions. [2024-11-09 04:42:12,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-09 04:42:12,532 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:42:12,533 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:42:12,542 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:42:12,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:42:12,734 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:42:12,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:42:12,735 INFO L85 PathProgramCache]: Analyzing trace with hash -911730005, now seen corresponding path program 1 times [2024-11-09 04:42:12,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:42:12,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2086595801] [2024-11-09 04:42:12,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:42:12,736 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 04:42:12,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:42:12,740 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:42:12,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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)] Waiting until timeout for monitored process [2024-11-09 04:42:13,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:42:13,117 INFO L255 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-09 04:42:13,125 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:42:13,130 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 04:42:13,208 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 29 treesize of output 13 [2024-11-09 04:42:13,277 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 24 treesize of output 23 [2024-11-09 04:42:13,480 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 36 [2024-11-09 04:42:14,037 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:14,037 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 55 treesize of output 54 [2024-11-09 04:42:14,513 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:14,513 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 59 treesize of output 52 [2024-11-09 04:42:15,050 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:15,051 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 72 treesize of output 77 [2024-11-09 04:42:15,223 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:15,224 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 89 treesize of output 91 [2024-11-09 04:42:15,435 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:15,435 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 106 treesize of output 105 [2024-11-09 04:42:16,992 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:16,993 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 120 treesize of output 117 [2024-11-09 04:42:17,437 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:17,438 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 125 treesize of output 53 [2024-11-09 04:42:17,578 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 403 proven. 48 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2024-11-09 04:42:17,579 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:42:18,169 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-09 04:42:18,169 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:42:18,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2086595801] [2024-11-09 04:42:18,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2086595801] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 04:42:18,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 04:42:18,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [21] total 26 [2024-11-09 04:42:18,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402974243] [2024-11-09 04:42:18,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:42:18,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 04:42:18,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:42:18,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 04:42:18,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=515, Unknown=0, NotChecked=0, Total=650 [2024-11-09 04:42:18,172 INFO L87 Difference]: Start difference. First operand 752 states and 972 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 04:42:19,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:42:19,458 INFO L93 Difference]: Finished difference Result 1601 states and 2067 transitions. [2024-11-09 04:42:19,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 04:42:19,459 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 134 [2024-11-09 04:42:19,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:42:19,462 INFO L225 Difference]: With dead ends: 1601 [2024-11-09 04:42:19,462 INFO L226 Difference]: Without dead ends: 852 [2024-11-09 04:42:19,464 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=160, Invalid=652, Unknown=0, NotChecked=0, Total=812 [2024-11-09 04:42:19,464 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 149 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:42:19,465 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 489 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 04:42:19,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 852 states. [2024-11-09 04:42:19,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 852 to 755. [2024-11-09 04:42:19,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 755 states, 677 states have (on average 1.2481536189069424) internal successors, (845), 688 states have internal predecessors, (845), 65 states have call successors, (65), 12 states have call predecessors, (65), 12 states have return successors, (65), 54 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-09 04:42:19,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 975 transitions. [2024-11-09 04:42:19,508 INFO L78 Accepts]: Start accepts. Automaton has 755 states and 975 transitions. Word has length 134 [2024-11-09 04:42:19,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:42:19,509 INFO L471 AbstractCegarLoop]: Abstraction has 755 states and 975 transitions. [2024-11-09 04:42:19,509 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 04:42:19,509 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states and 975 transitions. [2024-11-09 04:42:19,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-09 04:42:19,512 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:42:19,512 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:42:19,527 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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)] Ended with exit code 0 [2024-11-09 04:42:19,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:42:19,713 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:42:19,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:42:19,714 INFO L85 PathProgramCache]: Analyzing trace with hash -2084751579, now seen corresponding path program 1 times [2024-11-09 04:42:19,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:42:19,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [882047233] [2024-11-09 04:42:19,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:42:19,715 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 04:42:19,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:42:19,718 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:42:19,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 (18)] Waiting until timeout for monitored process [2024-11-09 04:42:20,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:42:20,088 INFO L255 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 04:42:20,095 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:42:20,104 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 8 treesize of output 1 [2024-11-09 04:42:20,151 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 27 treesize of output 15 [2024-11-09 04:42:20,166 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 22 treesize of output 10 [2024-11-09 04:42:20,193 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-09 04:42:20,193 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:42:20,193 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:42:20,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [882047233] [2024-11-09 04:42:20,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [882047233] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:42:20,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:42:20,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 04:42:20,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131708874] [2024-11-09 04:42:20,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:42:20,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 04:42:20,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:42:20,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 04:42:20,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:42:20,196 INFO L87 Difference]: Start difference. First operand 755 states and 975 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 04:42:21,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:42:21,254 INFO L93 Difference]: Finished difference Result 1426 states and 1837 transitions. [2024-11-09 04:42:21,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 04:42:21,255 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 134 [2024-11-09 04:42:21,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:42:21,257 INFO L225 Difference]: With dead ends: 1426 [2024-11-09 04:42:21,257 INFO L226 Difference]: Without dead ends: 674 [2024-11-09 04:42:21,258 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 130 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 04:42:21,259 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 73 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 04:42:21,259 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 468 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 04:42:21,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2024-11-09 04:42:21,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 671. [2024-11-09 04:42:21,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 595 states have (on average 1.2285714285714286) internal successors, (731), 604 states have internal predecessors, (731), 63 states have call successors, (63), 12 states have call predecessors, (63), 12 states have return successors, (63), 54 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-09 04:42:21,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 857 transitions. [2024-11-09 04:42:21,299 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 857 transitions. Word has length 134 [2024-11-09 04:42:21,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:42:21,300 INFO L471 AbstractCegarLoop]: Abstraction has 671 states and 857 transitions. [2024-11-09 04:42:21,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 04:42:21,300 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 857 transitions. [2024-11-09 04:42:21,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-09 04:42:21,302 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:42:21,302 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:42:21,314 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 (18)] Forceful destruction successful, exit code 0 [2024-11-09 04:42:21,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:42:21,503 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:42:21,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:42:21,504 INFO L85 PathProgramCache]: Analyzing trace with hash -218081887, now seen corresponding path program 1 times [2024-11-09 04:42:21,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:42:21,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [873014211] [2024-11-09 04:42:21,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:42:21,505 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 04:42:21,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:42:21,508 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:42:21,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:42:21,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:42:21,930 INFO L255 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-09 04:42:21,937 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:42:21,945 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 04:42:22,008 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 29 treesize of output 13 [2024-11-09 04:42:22,057 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 29 treesize of output 13 [2024-11-09 04:42:22,109 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 29 treesize of output 13 [2024-11-09 04:42:22,158 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 24 treesize of output 23 [2024-11-09 04:42:22,334 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:22,335 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 39 treesize of output 26 [2024-11-09 04:42:22,556 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:22,556 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 52 treesize of output 60 [2024-11-09 04:42:22,652 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:22,652 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 69 treesize of output 83 [2024-11-09 04:42:22,792 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:22,792 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 86 treesize of output 97 [2024-11-09 04:42:23,584 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:23,585 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 126 treesize of output 111 [2024-11-09 04:42:23,938 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:23,938 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 132 treesize of output 48 [2024-11-09 04:42:24,031 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 366 proven. 33 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-09 04:42:24,031 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:42:24,568 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-09 04:42:24,569 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:42:24,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [873014211] [2024-11-09 04:42:24,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [873014211] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 04:42:24,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 04:42:24,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [15] total 20 [2024-11-09 04:42:24,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488546496] [2024-11-09 04:42:24,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:42:24,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 04:42:24,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:42:24,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 04:42:24,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2024-11-09 04:42:24,571 INFO L87 Difference]: Start difference. First operand 671 states and 857 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 04:42:26,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:42:26,078 INFO L93 Difference]: Finished difference Result 1323 states and 1688 transitions. [2024-11-09 04:42:26,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 04:42:26,081 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 134 [2024-11-09 04:42:26,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:42:26,084 INFO L225 Difference]: With dead ends: 1323 [2024-11-09 04:42:26,084 INFO L226 Difference]: Without dead ends: 655 [2024-11-09 04:42:26,086 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2024-11-09 04:42:26,086 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 50 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 04:42:26,086 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 606 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 04:42:26,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2024-11-09 04:42:26,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 652. [2024-11-09 04:42:26,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 652 states, 576 states have (on average 1.2204861111111112) internal successors, (703), 585 states have internal predecessors, (703), 63 states have call successors, (63), 12 states have call predecessors, (63), 12 states have return successors, (63), 54 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-09 04:42:26,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 829 transitions. [2024-11-09 04:42:26,126 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 829 transitions. Word has length 134 [2024-11-09 04:42:26,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:42:26,127 INFO L471 AbstractCegarLoop]: Abstraction has 652 states and 829 transitions. [2024-11-09 04:42:26,127 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 04:42:26,127 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 829 transitions. [2024-11-09 04:42:26,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-09 04:42:26,143 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:42:26,144 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:42:26,155 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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)] Ended with exit code 0 [2024-11-09 04:42:26,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:42:26,345 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:42:26,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:42:26,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1808098131, now seen corresponding path program 1 times [2024-11-09 04:42:26,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:42:26,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [429331938] [2024-11-09 04:42:26,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:42:26,346 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 04:42:26,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:42:26,347 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:42:26,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2024-11-09 04:42:26,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:42:26,712 INFO L255 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-09 04:42:26,717 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:42:26,739 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 04:42:26,858 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 31 treesize of output 15 [2024-11-09 04:42:26,927 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 31 treesize of output 15 [2024-11-09 04:42:27,024 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:27,024 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 44 treesize of output 40 [2024-11-09 04:42:27,092 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:27,092 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 61 treesize of output 63 [2024-11-09 04:42:27,175 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:27,175 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 78 treesize of output 77 [2024-11-09 04:42:27,312 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:27,313 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 84 treesize of output 30 [2024-11-09 04:42:27,512 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 276 proven. 18 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2024-11-09 04:42:27,512 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:42:28,002 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 30 proven. 18 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-09 04:42:28,003 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:42:28,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [429331938] [2024-11-09 04:42:28,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [429331938] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:42:28,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1048818277] [2024-11-09 04:42:28,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:42:28,004 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 04:42:28,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 04:42:28,008 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 04:42:28,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2024-11-09 04:42:28,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:42:28,759 INFO L255 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-09 04:42:28,766 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:42:28,973 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 04:42:29,522 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2024-11-09 04:42:29,783 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2024-11-09 04:42:30,024 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:30,025 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 38 [2024-11-09 04:42:30,157 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:30,158 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 45 treesize of output 53 [2024-11-09 04:42:30,385 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:30,386 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 58 treesize of output 65 [2024-11-09 04:42:30,645 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:30,646 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 62 treesize of output 30 [2024-11-09 04:42:30,694 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 286 proven. 18 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2024-11-09 04:42:30,695 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:42:30,981 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 30 proven. 18 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-09 04:42:30,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1048818277] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:42:30,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [522995261] [2024-11-09 04:42:30,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:42:30,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:42:30,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:42:30,983 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:42:30,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-09 04:42:31,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:42:31,220 INFO L255 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 04:42:31,224 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:42:31,288 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 31 treesize of output 15 [2024-11-09 04:42:31,352 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 31 treesize of output 15 [2024-11-09 04:42:31,472 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:31,473 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 44 treesize of output 40 [2024-11-09 04:42:31,521 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:31,522 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 61 treesize of output 63 [2024-11-09 04:42:31,565 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:31,566 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 78 treesize of output 77 [2024-11-09 04:42:31,663 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:31,663 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 84 treesize of output 30 [2024-11-09 04:42:31,976 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 276 proven. 18 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2024-11-09 04:42:31,976 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:42:32,227 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 30 proven. 18 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-09 04:42:32,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [522995261] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:42:32,227 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 04:42:32,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 11, 7, 10, 7] total 23 [2024-11-09 04:42:32,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757250818] [2024-11-09 04:42:32,228 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 04:42:32,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-09 04:42:32,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:42:32,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-09 04:42:32,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=388, Unknown=0, NotChecked=0, Total=506 [2024-11-09 04:42:32,230 INFO L87 Difference]: Start difference. First operand 652 states and 829 transitions. Second operand has 23 states, 20 states have (on average 5.35) internal successors, (107), 22 states have internal predecessors, (107), 7 states have call successors, (41), 5 states have call predecessors, (41), 7 states have return successors, (41), 4 states have call predecessors, (41), 7 states have call successors, (41) [2024-11-09 04:42:37,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:42:37,713 INFO L93 Difference]: Finished difference Result 1253 states and 1573 transitions. [2024-11-09 04:42:37,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-09 04:42:37,715 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 20 states have (on average 5.35) internal successors, (107), 22 states have internal predecessors, (107), 7 states have call successors, (41), 5 states have call predecessors, (41), 7 states have return successors, (41), 4 states have call predecessors, (41), 7 states have call successors, (41) Word has length 134 [2024-11-09 04:42:37,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:42:37,717 INFO L225 Difference]: With dead ends: 1253 [2024-11-09 04:42:37,717 INFO L226 Difference]: Without dead ends: 604 [2024-11-09 04:42:37,719 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 811 GetRequests, 771 SyntacticMatches, 6 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=331, Invalid=929, Unknown=0, NotChecked=0, Total=1260 [2024-11-09 04:42:37,719 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 510 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 958 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 525 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 1076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 958 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-09 04:42:37,719 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [525 Valid, 414 Invalid, 1076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 958 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-09 04:42:37,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2024-11-09 04:42:37,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 431. [2024-11-09 04:42:37,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 375 states have (on average 1.2) internal successors, (450), 380 states have internal predecessors, (450), 45 states have call successors, (45), 10 states have call predecessors, (45), 10 states have return successors, (45), 40 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-09 04:42:37,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 540 transitions. [2024-11-09 04:42:37,760 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 540 transitions. Word has length 134 [2024-11-09 04:42:37,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:42:37,760 INFO L471 AbstractCegarLoop]: Abstraction has 431 states and 540 transitions. [2024-11-09 04:42:37,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 20 states have (on average 5.35) internal successors, (107), 22 states have internal predecessors, (107), 7 states have call successors, (41), 5 states have call predecessors, (41), 7 states have return successors, (41), 4 states have call predecessors, (41), 7 states have call successors, (41) [2024-11-09 04:42:37,761 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 540 transitions. [2024-11-09 04:42:37,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-09 04:42:37,763 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:42:37,763 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:42:37,771 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (21)] Ended with exit code 0 [2024-11-09 04:42:37,973 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2024-11-09 04:42:38,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-09 04:42:38,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:42:38,364 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:42:38,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:42:38,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1864711438, now seen corresponding path program 1 times [2024-11-09 04:42:38,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:42:38,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1115432901] [2024-11-09 04:42:38,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:42:38,366 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 04:42:38,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:42:38,367 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:42:38,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:42:38,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:42:38,797 INFO L255 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-09 04:42:38,802 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:42:38,809 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 8 treesize of output 1 [2024-11-09 04:42:38,813 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 04:42:38,900 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 30 treesize of output 14 [2024-11-09 04:42:38,969 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 30 treesize of output 14 [2024-11-09 04:42:39,098 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:39,098 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 43 treesize of output 39 [2024-11-09 04:42:39,154 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:39,154 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 60 treesize of output 62 [2024-11-09 04:42:39,252 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:39,252 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 72 treesize of output 77 [2024-11-09 04:42:39,403 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:39,404 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 83 treesize of output 80 [2024-11-09 04:42:39,932 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 280 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 04:42:39,933 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:42:39,933 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:42:39,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1115432901] [2024-11-09 04:42:39,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1115432901] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:42:39,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:42:39,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 04:42:39,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289421668] [2024-11-09 04:42:39,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:42:39,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 04:42:39,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:42:39,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 04:42:39,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-09 04:42:39,935 INFO L87 Difference]: Start difference. First operand 431 states and 540 transitions. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-09 04:42:43,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:42:43,008 INFO L93 Difference]: Finished difference Result 602 states and 746 transitions. [2024-11-09 04:42:43,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 04:42:43,010 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 135 [2024-11-09 04:42:43,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:42:43,012 INFO L225 Difference]: With dead ends: 602 [2024-11-09 04:42:43,012 INFO L226 Difference]: Without dead ends: 600 [2024-11-09 04:42:43,013 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-11-09 04:42:43,013 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 354 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-09 04:42:43,014 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 354 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 400 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-09 04:42:43,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2024-11-09 04:42:43,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 440. [2024-11-09 04:42:43,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 384 states have (on average 1.1953125) internal successors, (459), 389 states have internal predecessors, (459), 45 states have call successors, (45), 10 states have call predecessors, (45), 10 states have return successors, (45), 40 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-09 04:42:43,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 549 transitions. [2024-11-09 04:42:43,062 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 549 transitions. Word has length 135 [2024-11-09 04:42:43,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:42:43,062 INFO L471 AbstractCegarLoop]: Abstraction has 440 states and 549 transitions. [2024-11-09 04:42:43,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-09 04:42:43,063 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 549 transitions. [2024-11-09 04:42:43,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-09 04:42:43,064 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:42:43,065 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:42:43,077 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:42:43,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:42:43,265 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:42:43,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:42:43,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1862864396, now seen corresponding path program 1 times [2024-11-09 04:42:43,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:42:43,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1594000058] [2024-11-09 04:42:43,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:42:43,266 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 04:42:43,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:42:43,268 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:42:43,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:42:43,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:42:43,703 INFO L255 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-09 04:42:43,707 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:42:43,711 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 04:42:43,715 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 04:42:43,719 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 14 treesize of output 10 [2024-11-09 04:42:43,792 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 30 treesize of output 14 [2024-11-09 04:42:43,932 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:43,932 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 43 treesize of output 48 [2024-11-09 04:42:43,980 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:43,980 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 60 treesize of output 71 [2024-11-09 04:42:44,054 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:44,054 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 77 treesize of output 85 [2024-11-09 04:42:44,222 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:44,223 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 88 treesize of output 88 [2024-11-09 04:42:44,712 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 240 proven. 0 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2024-11-09 04:42:44,712 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:42:44,712 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:42:44,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1594000058] [2024-11-09 04:42:44,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1594000058] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:42:44,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:42:44,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 04:42:44,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420303753] [2024-11-09 04:42:44,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:42:44,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 04:42:44,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:42:44,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 04:42:44,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-09 04:42:44,715 INFO L87 Difference]: Start difference. First operand 440 states and 549 transitions. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-09 04:42:48,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:42:48,256 INFO L93 Difference]: Finished difference Result 1046 states and 1297 transitions. [2024-11-09 04:42:48,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 04:42:48,257 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 135 [2024-11-09 04:42:48,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:42:48,261 INFO L225 Difference]: With dead ends: 1046 [2024-11-09 04:42:48,261 INFO L226 Difference]: Without dead ends: 609 [2024-11-09 04:42:48,262 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2024-11-09 04:42:48,263 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 213 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:42:48,264 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 422 Invalid, 609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-09 04:42:48,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2024-11-09 04:42:48,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 528. [2024-11-09 04:42:48,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 472 states have (on average 1.201271186440678) internal successors, (567), 477 states have internal predecessors, (567), 45 states have call successors, (45), 10 states have call predecessors, (45), 10 states have return successors, (45), 40 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-09 04:42:48,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 657 transitions. [2024-11-09 04:42:48,334 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 657 transitions. Word has length 135 [2024-11-09 04:42:48,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:42:48,335 INFO L471 AbstractCegarLoop]: Abstraction has 528 states and 657 transitions. [2024-11-09 04:42:48,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-09 04:42:48,335 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 657 transitions. [2024-11-09 04:42:48,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-09 04:42:48,337 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:42:48,337 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:42:48,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:42:48,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:42:48,538 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:42:48,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:42:48,538 INFO L85 PathProgramCache]: Analyzing trace with hash 357176727, now seen corresponding path program 1 times [2024-11-09 04:42:48,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:42:48,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [562306468] [2024-11-09 04:42:48,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:42:48,539 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 04:42:48,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:42:48,540 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:42:48,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 (25)] Waiting until timeout for monitored process [2024-11-09 04:42:48,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:42:48,902 INFO L255 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-09 04:42:48,908 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:42:48,914 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 69 treesize of output 68 [2024-11-09 04:42:49,042 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 90 treesize of output 82 [2024-11-09 04:42:49,104 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 19 treesize of output 1 [2024-11-09 04:42:49,320 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 31 treesize of output 15 [2024-11-09 04:42:49,425 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 31 treesize of output 15 [2024-11-09 04:42:49,532 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 31 treesize of output 15 [2024-11-09 04:42:49,930 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:49,930 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 42 treesize of output 29 [2024-11-09 04:42:50,122 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:50,122 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 37 treesize of output 39 [2024-11-09 04:42:50,474 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:50,474 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 42 [2024-11-09 04:42:51,183 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:51,184 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 95 treesize of output 79 [2024-11-09 04:42:51,375 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:51,375 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 101 treesize of output 88 [2024-11-09 04:42:51,584 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:51,585 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 118 treesize of output 102 [2024-11-09 04:42:51,930 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:51,930 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 129 treesize of output 105 [2024-11-09 04:42:52,280 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:52,280 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 134 treesize of output 50 [2024-11-09 04:42:52,712 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 383 proven. 57 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-09 04:42:52,712 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:42:53,337 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-09 04:42:53,337 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:42:53,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [562306468] [2024-11-09 04:42:53,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [562306468] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 04:42:53,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 04:42:53,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [18] total 23 [2024-11-09 04:42:53,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451057624] [2024-11-09 04:42:53,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:42:53,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 04:42:53,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:42:53,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 04:42:53,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=419, Unknown=0, NotChecked=0, Total=506 [2024-11-09 04:42:53,340 INFO L87 Difference]: Start difference. First operand 528 states and 657 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 04:42:54,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:42:54,549 INFO L93 Difference]: Finished difference Result 1021 states and 1267 transitions. [2024-11-09 04:42:54,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 04:42:54,555 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 135 [2024-11-09 04:42:54,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:42:54,558 INFO L225 Difference]: With dead ends: 1021 [2024-11-09 04:42:54,558 INFO L226 Difference]: Without dead ends: 496 [2024-11-09 04:42:54,560 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=103, Invalid=497, Unknown=0, NotChecked=0, Total=600 [2024-11-09 04:42:54,560 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 163 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 04:42:54,561 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 317 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 04:42:54,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2024-11-09 04:42:54,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 482. [2024-11-09 04:42:54,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 426 states have (on average 1.1807511737089202) internal successors, (503), 431 states have internal predecessors, (503), 45 states have call successors, (45), 10 states have call predecessors, (45), 10 states have return successors, (45), 40 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-09 04:42:54,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 593 transitions. [2024-11-09 04:42:54,616 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 593 transitions. Word has length 135 [2024-11-09 04:42:54,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:42:54,616 INFO L471 AbstractCegarLoop]: Abstraction has 482 states and 593 transitions. [2024-11-09 04:42:54,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 04:42:54,617 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 593 transitions. [2024-11-09 04:42:54,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-09 04:42:54,618 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:42:54,619 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:42:54,628 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 (25)] Ended with exit code 0 [2024-11-09 04:42:54,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:42:54,820 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:42:54,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:42:54,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1905489458, now seen corresponding path program 1 times [2024-11-09 04:42:54,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:42:54,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1125270249] [2024-11-09 04:42:54,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:42:54,822 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 04:42:54,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:42:54,825 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:42:54,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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)] Waiting until timeout for monitored process [2024-11-09 04:42:55,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:42:55,279 INFO L255 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-09 04:42:55,284 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:42:55,290 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 04:42:55,295 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 04:42:55,387 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 04:42:55,579 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:55,580 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 40 treesize of output 27 [2024-11-09 04:42:55,853 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:55,853 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 42 treesize of output 47 [2024-11-09 04:42:55,934 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:55,934 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 59 treesize of output 61 [2024-11-09 04:42:56,099 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:42:56,100 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 70 treesize of output 64 [2024-11-09 04:42:56,687 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 320 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-11-09 04:42:56,688 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:42:56,688 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:42:56,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1125270249] [2024-11-09 04:42:56,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1125270249] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:42:56,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:42:56,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 04:42:56,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530150761] [2024-11-09 04:42:56,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:42:56,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 04:42:56,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:42:56,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 04:42:56,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-09 04:42:56,691 INFO L87 Difference]: Start difference. First operand 482 states and 593 transitions. Second operand has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-09 04:42:59,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:42:59,105 INFO L93 Difference]: Finished difference Result 843 states and 1029 transitions. [2024-11-09 04:42:59,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 04:42:59,107 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 135 [2024-11-09 04:42:59,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:42:59,109 INFO L225 Difference]: With dead ends: 843 [2024-11-09 04:42:59,109 INFO L226 Difference]: Without dead ends: 841 [2024-11-09 04:42:59,110 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-11-09 04:42:59,110 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 182 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:42:59,110 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 383 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-09 04:42:59,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 841 states. [2024-11-09 04:42:59,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 841 to 528. [2024-11-09 04:42:59,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 459 states have (on average 1.167755991285403) internal successors, (536), 465 states have internal predecessors, (536), 53 states have call successors, (53), 15 states have call predecessors, (53), 15 states have return successors, (53), 47 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-09 04:42:59,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 642 transitions. [2024-11-09 04:42:59,203 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 642 transitions. Word has length 135 [2024-11-09 04:42:59,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:42:59,204 INFO L471 AbstractCegarLoop]: Abstraction has 528 states and 642 transitions. [2024-11-09 04:42:59,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-09 04:42:59,204 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 642 transitions. [2024-11-09 04:42:59,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-09 04:42:59,206 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:42:59,206 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:42:59,220 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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)] Ended with exit code 0 [2024-11-09 04:42:59,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:42:59,407 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:42:59,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:42:59,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1907336500, now seen corresponding path program 1 times [2024-11-09 04:42:59,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:42:59,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [644816793] [2024-11-09 04:42:59,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:42:59,408 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 04:42:59,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:42:59,409 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:42:59,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:42:59,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:42:59,886 INFO L255 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-09 04:42:59,890 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:42:59,894 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 04:42:59,898 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 04:42:59,966 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 30 treesize of output 14 [2024-11-09 04:43:00,025 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 30 treesize of output 14 [2024-11-09 04:43:00,137 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:43:00,137 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 04:43:00,174 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:43:00,175 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 49 treesize of output 48 [2024-11-09 04:43:00,264 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:43:00,264 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 60 treesize of output 51 [2024-11-09 04:43:00,548 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 280 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 04:43:00,548 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:43:00,549 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:43:00,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [644816793] [2024-11-09 04:43:00,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [644816793] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:43:00,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:43:00,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 04:43:00,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271828909] [2024-11-09 04:43:00,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:43:00,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 04:43:00,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:43:00,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 04:43:00,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-09 04:43:00,551 INFO L87 Difference]: Start difference. First operand 528 states and 642 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-09 04:43:02,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:43:02,814 INFO L93 Difference]: Finished difference Result 1350 states and 1642 transitions. [2024-11-09 04:43:02,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 04:43:02,815 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), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 135 [2024-11-09 04:43:02,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:43:02,818 INFO L225 Difference]: With dead ends: 1350 [2024-11-09 04:43:02,819 INFO L226 Difference]: Without dead ends: 850 [2024-11-09 04:43:02,819 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:43:02,820 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 179 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-09 04:43:02,820 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 382 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-09 04:43:02,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2024-11-09 04:43:02,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 662. [2024-11-09 04:43:02,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 593 states have (on average 1.1770657672849916) internal successors, (698), 599 states have internal predecessors, (698), 53 states have call successors, (53), 15 states have call predecessors, (53), 15 states have return successors, (53), 47 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-09 04:43:02,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 804 transitions. [2024-11-09 04:43:02,917 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 804 transitions. Word has length 135 [2024-11-09 04:43:02,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:43:02,918 INFO L471 AbstractCegarLoop]: Abstraction has 662 states and 804 transitions. [2024-11-09 04:43:02,918 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), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-09 04:43:02,918 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 804 transitions. [2024-11-09 04:43:02,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-09 04:43:02,920 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:43:02,920 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:43:02,934 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:43:03,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:43:03,121 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:43:03,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:43:03,121 INFO L85 PathProgramCache]: Analyzing trace with hash 419216341, now seen corresponding path program 1 times [2024-11-09 04:43:03,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:43:03,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1393301944] [2024-11-09 04:43:03,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:43:03,122 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 04:43:03,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:43:03,123 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:43:03,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:43:03,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:43:03,508 INFO L255 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-09 04:43:03,513 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:43:03,517 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 04:43:03,698 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 41 treesize of output 19 [2024-11-09 04:43:03,856 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 41 treesize of output 19 [2024-11-09 04:43:04,009 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 36 treesize of output 29 [2024-11-09 04:43:04,601 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:43:04,602 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 46 treesize of output 42 [2024-11-09 04:43:04,985 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:43:04,985 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 50 [2024-11-09 04:43:05,494 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:43:05,495 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 60 treesize of output 53 [2024-11-09 04:43:06,417 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:43:06,417 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 81 treesize of output 71 [2024-11-09 04:43:06,620 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:43:06,620 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 98 treesize of output 85 [2024-11-09 04:43:06,968 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:43:06,968 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 104 treesize of output 89 [2024-11-09 04:43:07,526 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:43:07,526 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 109 treesize of output 43 [2024-11-09 04:43:07,619 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 413 proven. 57 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-11-09 04:43:07,619 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:43:07,988 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-09 04:43:07,988 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:43:07,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1393301944] [2024-11-09 04:43:07,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1393301944] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 04:43:07,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 04:43:07,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [19] total 22 [2024-11-09 04:43:07,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090926183] [2024-11-09 04:43:07,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:43:07,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 04:43:07,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:43:07,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 04:43:07,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=356, Unknown=0, NotChecked=0, Total=462 [2024-11-09 04:43:07,991 INFO L87 Difference]: Start difference. First operand 662 states and 804 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 04:43:08,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:43:08,847 INFO L93 Difference]: Finished difference Result 1407 states and 1702 transitions. [2024-11-09 04:43:08,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 04:43:08,848 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 135 [2024-11-09 04:43:08,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:43:08,851 INFO L225 Difference]: With dead ends: 1407 [2024-11-09 04:43:08,851 INFO L226 Difference]: Without dead ends: 773 [2024-11-09 04:43:08,853 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 246 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=111, Invalid=395, Unknown=0, NotChecked=0, Total=506 [2024-11-09 04:43:08,854 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 102 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 04:43:08,854 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 255 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 04:43:08,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2024-11-09 04:43:08,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 662. [2024-11-09 04:43:08,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 593 states have (on average 1.1669477234401349) internal successors, (692), 599 states have internal predecessors, (692), 53 states have call successors, (53), 15 states have call predecessors, (53), 15 states have return successors, (53), 47 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-09 04:43:08,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 798 transitions. [2024-11-09 04:43:08,966 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 798 transitions. Word has length 135 [2024-11-09 04:43:08,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:43:08,967 INFO L471 AbstractCegarLoop]: Abstraction has 662 states and 798 transitions. [2024-11-09 04:43:08,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 04:43:08,967 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 798 transitions. [2024-11-09 04:43:08,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-09 04:43:08,970 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:43:08,971 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:43:08,979 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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)] Ended with exit code 0 [2024-11-09 04:43:09,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:43:09,171 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:43:09,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:43:09,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1177208483, now seen corresponding path program 1 times [2024-11-09 04:43:09,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:43:09,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1498877267] [2024-11-09 04:43:09,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:43:09,172 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 04:43:09,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:43:09,174 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:43:09,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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)] Waiting until timeout for monitored process [2024-11-09 04:43:09,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:43:09,570 INFO L255 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-09 04:43:09,577 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:43:09,583 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 68 [2024-11-09 04:43:09,720 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 82 [2024-11-09 04:43:09,787 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 14 treesize of output 10 [2024-11-09 04:43:10,180 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 41 treesize of output 19 [2024-11-09 04:43:10,441 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 41 treesize of output 19 [2024-11-09 04:43:10,679 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 36 treesize of output 29 [2024-11-09 04:43:11,409 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:43:11,410 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 62 treesize of output 37 [2024-11-09 04:43:11,819 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:43:11,820 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 62 treesize of output 37 [2024-11-09 04:43:12,238 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:43:12,239 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 62 treesize of output 37 [2024-11-09 04:43:13,261 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:43:13,261 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 71 treesize of output 40 [2024-11-09 04:43:13,400 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:43:13,400 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 73 treesize of output 51 [2024-11-09 04:43:13,585 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:43:13,585 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 62 [2024-11-09 04:43:13,888 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:43:13,888 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 75 treesize of output 66 [2024-11-09 04:43:14,349 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:43:14,349 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 89 treesize of output 41 [2024-11-09 04:43:14,354 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 373 proven. 57 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-09 04:43:14,354 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:43:14,941 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-09 04:43:14,942 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:43:14,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1498877267] [2024-11-09 04:43:14,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1498877267] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 04:43:14,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 04:43:14,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [18] total 23 [2024-11-09 04:43:14,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083476983] [2024-11-09 04:43:14,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:43:14,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 04:43:14,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:43:14,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 04:43:14,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=391, Unknown=0, NotChecked=0, Total=506 [2024-11-09 04:43:14,945 INFO L87 Difference]: Start difference. First operand 662 states and 798 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 04:43:16,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:43:16,301 INFO L93 Difference]: Finished difference Result 1328 states and 1605 transitions. [2024-11-09 04:43:16,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 04:43:16,302 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 135 [2024-11-09 04:43:16,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:43:16,306 INFO L225 Difference]: With dead ends: 1328 [2024-11-09 04:43:16,306 INFO L226 Difference]: Without dead ends: 694 [2024-11-09 04:43:16,307 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 242 SyntacticMatches, 5 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=128, Invalid=472, Unknown=0, NotChecked=0, Total=600 [2024-11-09 04:43:16,307 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 74 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:43:16,308 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 490 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 04:43:16,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694 states. [2024-11-09 04:43:16,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 694 to 656. [2024-11-09 04:43:16,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 656 states, 587 states have (on average 1.1584327086882453) internal successors, (680), 593 states have internal predecessors, (680), 53 states have call successors, (53), 15 states have call predecessors, (53), 15 states have return successors, (53), 47 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-09 04:43:16,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 656 states to 656 states and 786 transitions. [2024-11-09 04:43:16,390 INFO L78 Accepts]: Start accepts. Automaton has 656 states and 786 transitions. Word has length 135 [2024-11-09 04:43:16,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:43:16,390 INFO L471 AbstractCegarLoop]: Abstraction has 656 states and 786 transitions. [2024-11-09 04:43:16,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 04:43:16,391 INFO L276 IsEmpty]: Start isEmpty. Operand 656 states and 786 transitions. [2024-11-09 04:43:16,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-09 04:43:16,393 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:43:16,393 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:43:16,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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)] Forceful destruction successful, exit code 0 [2024-11-09 04:43:16,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:43:16,594 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:43:16,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:43:16,595 INFO L85 PathProgramCache]: Analyzing trace with hash 2060390279, now seen corresponding path program 1 times [2024-11-09 04:43:16,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:43:16,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1166062331] [2024-11-09 04:43:16,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:43:16,596 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 04:43:16,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:43:16,599 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:43:16,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2024-11-09 04:43:17,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:43:17,524 INFO L255 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-09 04:43:17,527 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:43:17,539 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 04:43:17,545 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 04:43:17,725 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:43:17,725 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 51 treesize of output 50 [2024-11-09 04:43:17,906 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:43:17,907 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 66 treesize of output 28 [2024-11-09 04:43:18,072 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-09 04:43:18,072 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:43:18,072 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:43:18,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1166062331] [2024-11-09 04:43:18,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1166062331] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:43:18,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:43:18,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-09 04:43:18,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517253393] [2024-11-09 04:43:18,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:43:18,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 04:43:18,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:43:18,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 04:43:18,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-09 04:43:18,074 INFO L87 Difference]: Start difference. First operand 656 states and 786 transitions. Second operand has 13 states, 13 states have (on average 4.153846153846154) internal successors, (54), 13 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 04:43:22,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:43:22,246 INFO L93 Difference]: Finished difference Result 1559 states and 1869 transitions. [2024-11-09 04:43:22,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 04:43:22,247 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.153846153846154) internal successors, (54), 13 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 136 [2024-11-09 04:43:22,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:43:22,251 INFO L225 Difference]: With dead ends: 1559 [2024-11-09 04:43:22,251 INFO L226 Difference]: Without dead ends: 931 [2024-11-09 04:43:22,252 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2024-11-09 04:43:22,252 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 181 mSDsluCounter, 1282 mSDsCounter, 0 mSdLazyCounter, 1270 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 1473 SdHoareTripleChecker+Invalid, 1284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-09 04:43:22,253 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 1473 Invalid, 1284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1270 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-09 04:43:22,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2024-11-09 04:43:22,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 647. [2024-11-09 04:43:22,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 647 states, 578 states have (on average 1.1557093425605536) internal successors, (668), 584 states have internal predecessors, (668), 53 states have call successors, (53), 15 states have call predecessors, (53), 15 states have return successors, (53), 47 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-09 04:43:22,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 774 transitions. [2024-11-09 04:43:22,341 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 774 transitions. Word has length 136 [2024-11-09 04:43:22,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:43:22,342 INFO L471 AbstractCegarLoop]: Abstraction has 647 states and 774 transitions. [2024-11-09 04:43:22,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.153846153846154) internal successors, (54), 13 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 04:43:22,342 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 774 transitions. [2024-11-09 04:43:22,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-09 04:43:22,344 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:43:22,344 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:43:22,353 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Ended with exit code 0 [2024-11-09 04:43:22,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:43:22,545 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:43:22,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:43:22,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1544863631, now seen corresponding path program 1 times [2024-11-09 04:43:22,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:43:22,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [431562031] [2024-11-09 04:43:22,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:43:22,546 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 04:43:22,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:43:22,549 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:43:22,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:44:17,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:44:17,569 INFO L255 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 79 conjuncts are in the unsatisfiable core [2024-11-09 04:44:17,578 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:44:17,583 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 68 [2024-11-09 04:44:17,864 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 98 treesize of output 82 [2024-11-09 04:44:17,932 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 04:44:18,350 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 41 treesize of output 19 [2024-11-09 04:44:18,588 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 41 treesize of output 19 [2024-11-09 04:44:18,818 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 29 [2024-11-09 04:44:20,105 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 68 treesize of output 52 [2024-11-09 04:44:22,468 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:44:22,468 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 94 treesize of output 60 [2024-11-09 04:44:23,250 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:44:23,251 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 94 treesize of output 60 [2024-11-09 04:44:26,346 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:44:26,346 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 147 treesize of output 101 [2024-11-09 04:44:26,805 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 101 [2024-11-09 04:44:31,536 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:44:31,536 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 135 treesize of output 122 [2024-11-09 04:44:37,251 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:44:37,251 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 141 treesize of output 138 [2024-11-09 04:45:21,975 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:45:21,976 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 192 treesize of output 90 [2024-11-09 04:45:24,883 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 415 proven. 72 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-11-09 04:45:24,883 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:47:46,885 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-09 04:47:46,885 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:47:46,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [431562031] [2024-11-09 04:47:46,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [431562031] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 04:47:46,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 04:47:46,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [44] total 54 [2024-11-09 04:47:46,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129943081] [2024-11-09 04:47:46,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:47:46,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 04:47:46,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:47:46,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 04:47:46,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=352, Invalid=2441, Unknown=69, NotChecked=0, Total=2862 [2024-11-09 04:47:46,889 INFO L87 Difference]: Start difference. First operand 647 states and 774 transitions. Second operand has 11 states, 11 states have (on average 4.909090909090909) internal successors, (54), 11 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 04:47:48,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:47:51,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:47:53,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:48:11,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:48:13,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:48:33,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:48:33,772 INFO L93 Difference]: Finished difference Result 1384 states and 1656 transitions. [2024-11-09 04:48:33,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 04:48:33,778 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.909090909090909) internal successors, (54), 11 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 136 [2024-11-09 04:48:33,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:48:33,781 INFO L225 Difference]: With dead ends: 1384 [2024-11-09 04:48:33,781 INFO L226 Difference]: Without dead ends: 765 [2024-11-09 04:48:33,782 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 215 SyntacticMatches, 4 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1359 ImplicationChecksByTransitivity, 196.1s TimeCoverageRelationStatistics Valid=469, Invalid=3368, Unknown=69, NotChecked=0, Total=3906 [2024-11-09 04:48:33,783 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 148 mSDsluCounter, 666 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 11 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 809 SdHoareTripleChecker+Invalid, 723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 708 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.0s IncrementalHoareTripleChecker+Time [2024-11-09 04:48:33,783 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 809 Invalid, 723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 708 Invalid, 4 Unknown, 0 Unchecked, 39.0s Time] [2024-11-09 04:48:33,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2024-11-09 04:48:33,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 657. [2024-11-09 04:48:33,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 588 states have (on average 1.153061224489796) internal successors, (678), 594 states have internal predecessors, (678), 53 states have call successors, (53), 15 states have call predecessors, (53), 15 states have return successors, (53), 47 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-09 04:48:33,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 784 transitions. [2024-11-09 04:48:33,860 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 784 transitions. Word has length 136 [2024-11-09 04:48:33,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:48:33,860 INFO L471 AbstractCegarLoop]: Abstraction has 657 states and 784 transitions. [2024-11-09 04:48:33,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.909090909090909) internal successors, (54), 11 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 04:48:33,861 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 784 transitions. [2024-11-09 04:48:33,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-09 04:48:33,862 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:48:33,863 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:48:33,881 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:48:34,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:48:34,063 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:48:34,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:48:34,064 INFO L85 PathProgramCache]: Analyzing trace with hash 958057617, now seen corresponding path program 1 times [2024-11-09 04:48:34,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:48:34,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2090908750] [2024-11-09 04:48:34,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:48:34,064 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 04:48:34,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:48:34,065 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:48:34,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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)] Waiting until timeout for monitored process [2024-11-09 04:48:34,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:48:34,518 INFO L255 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-09 04:48:34,523 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:48:34,528 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 69 treesize of output 68 [2024-11-09 04:48:34,642 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 90 treesize of output 82 [2024-11-09 04:48:34,887 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 04:48:35,166 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 31 treesize of output 15 [2024-11-09 04:48:35,308 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 25 [2024-11-09 04:48:35,624 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:48:35,624 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 28 [2024-11-09 04:48:36,138 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:48:36,139 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 67 [2024-11-09 04:48:36,335 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:48:36,336 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 71 treesize of output 76 [2024-11-09 04:48:36,600 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:48:36,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 88 treesize of output 99 [2024-11-09 04:48:37,008 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:48:37,008 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 99 treesize of output 102 [2024-11-09 04:48:37,470 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:48:37,470 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 94 treesize of output 34 [2024-11-09 04:48:37,645 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 326 proven. 21 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2024-11-09 04:48:37,645 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:48:38,188 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-09 04:48:38,188 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:48:38,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2090908750] [2024-11-09 04:48:38,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2090908750] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 04:48:38,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 04:48:38,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13] total 17 [2024-11-09 04:48:38,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055095015] [2024-11-09 04:48:38,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:48:38,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 04:48:38,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:48:38,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 04:48:38,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2024-11-09 04:48:38,190 INFO L87 Difference]: Start difference. First operand 657 states and 784 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 04:48:39,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:48:39,368 INFO L93 Difference]: Finished difference Result 1360 states and 1620 transitions. [2024-11-09 04:48:39,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 04:48:39,370 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 136 [2024-11-09 04:48:39,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:48:39,373 INFO L225 Difference]: With dead ends: 1360 [2024-11-09 04:48:39,374 INFO L226 Difference]: Without dead ends: 731 [2024-11-09 04:48:39,375 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2024-11-09 04:48:39,375 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 41 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:48:39,376 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 324 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 04:48:39,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2024-11-09 04:48:39,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 657. [2024-11-09 04:48:39,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 588 states have (on average 1.1428571428571428) internal successors, (672), 594 states have internal predecessors, (672), 53 states have call successors, (53), 15 states have call predecessors, (53), 15 states have return successors, (53), 47 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-09 04:48:39,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 778 transitions. [2024-11-09 04:48:39,468 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 778 transitions. Word has length 136 [2024-11-09 04:48:39,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:48:39,469 INFO L471 AbstractCegarLoop]: Abstraction has 657 states and 778 transitions. [2024-11-09 04:48:39,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 04:48:39,469 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 778 transitions. [2024-11-09 04:48:39,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-09 04:48:39,471 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:48:39,471 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:48:39,483 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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)] Ended with exit code 0 [2024-11-09 04:48:39,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:48:39,672 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:48:39,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:48:39,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1413681645, now seen corresponding path program 1 times [2024-11-09 04:48:39,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:48:39,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1116911168] [2024-11-09 04:48:39,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:48:39,674 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 04:48:39,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:48:39,677 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/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 04:48:39,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f6e6ad-144f-457e-ab52-e7cbe8f40b14/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2024-11-09 04:48:40,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:48:40,794 INFO L255 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-11-09 04:48:40,800 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:48:40,806 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 69 treesize of output 68 [2024-11-09 04:48:41,058 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 104 treesize of output 93 [2024-11-09 04:48:41,625 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 95 treesize of output 86 [2024-11-09 04:48:42,239 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 95 treesize of output 88 [2024-11-09 04:48:43,239 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 101 treesize of output 92 [2024-11-09 04:48:44,227 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 102 treesize of output 91 [2024-11-09 04:48:51,400 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 113 treesize of output 100 [2024-11-09 04:50:42,799 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 129 treesize of output 114 [2024-11-09 04:51:31,091 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 107 treesize of output 96 [2024-11-09 04:54:58,970 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 137 treesize of output 118