./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test2-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c979db-7a38-46fe-b55d-7ad2dfdf890d/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c979db-7a38-46fe-b55d-7ad2dfdf890d/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_f8c979db-7a38-46fe-b55d-7ad2dfdf890d/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c979db-7a38-46fe-b55d-7ad2dfdf890d/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test2-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c979db-7a38-46fe-b55d-7ad2dfdf890d/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_f8c979db-7a38-46fe-b55d-7ad2dfdf890d/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 e277983cfe4b30513b023d34f2b840358d8a25fd7a5c39241cadd105379bfb92 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 04:30:06,589 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:30:06,688 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c979db-7a38-46fe-b55d-7ad2dfdf890d/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 04:30:06,695 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:30:06,696 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:30:06,738 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:30:06,739 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:30:06,740 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:30:06,740 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:30:06,741 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:30:06,742 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 04:30:06,742 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 04:30:06,743 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 04:30:06,743 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 04:30:06,744 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 04:30:06,744 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 04:30:06,744 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 04:30:06,745 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 04:30:06,745 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 04:30:06,746 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 04:30:06,746 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 04:30:06,747 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 04:30:06,748 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:30:06,748 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 04:30:06,749 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 04:30:06,749 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 04:30:06,750 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 04:30:06,750 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:30:06,750 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 04:30:06,751 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:30:06,751 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 04:30:06,751 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:30:06,752 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 04:30:06,752 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 04:30:06,752 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:30:06,753 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:30:06,753 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 04:30:06,754 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:30:06,754 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:30:06,754 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:30:06,755 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:30:06,759 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 04:30:06,759 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 04:30:06,759 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 04:30:06,760 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:30:06,760 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 04:30:06,760 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 04:30:06,761 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_f8c979db-7a38-46fe-b55d-7ad2dfdf890d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c979db-7a38-46fe-b55d-7ad2dfdf890d/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e277983cfe4b30513b023d34f2b840358d8a25fd7a5c39241cadd105379bfb92 [2024-11-09 04:30:07,063 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:30:07,090 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:30:07,093 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:30:07,096 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:30:07,096 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:30:07,098 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c979db-7a38-46fe-b55d-7ad2dfdf890d/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test2-1.i Unable to find full path for "g++" [2024-11-09 04:30:09,025 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:30:09,361 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:30:09,362 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c979db-7a38-46fe-b55d-7ad2dfdf890d/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test2-1.i [2024-11-09 04:30:09,379 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c979db-7a38-46fe-b55d-7ad2dfdf890d/bin/utaipan-verify-YMUCfTKeje/data/8ba007866/fea30c0fa7df4ff58c135193b57f9014/FLAG048507071 [2024-11-09 04:30:09,395 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c979db-7a38-46fe-b55d-7ad2dfdf890d/bin/utaipan-verify-YMUCfTKeje/data/8ba007866/fea30c0fa7df4ff58c135193b57f9014 [2024-11-09 04:30:09,398 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:30:09,399 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:30:09,401 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:30:09,401 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:30:09,408 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:30:09,409 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:30:09" (1/1) ... [2024-11-09 04:30:09,410 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76c7c7ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:30:09, skipping insertion in model container [2024-11-09 04:30:09,411 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:30:09" (1/1) ... [2024-11-09 04:30:09,494 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:30:10,071 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_f8c979db-7a38-46fe-b55d-7ad2dfdf890d/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test2-1.i[37435,37448] [2024-11-09 04:30:10,251 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:30:10,275 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 04:30:10,319 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_f8c979db-7a38-46fe-b55d-7ad2dfdf890d/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test2-1.i[37435,37448] [2024-11-09 04:30:10,441 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:30:10,504 INFO L204 MainTranslator]: Completed translation [2024-11-09 04:30:10,505 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:30:10 WrapperNode [2024-11-09 04:30:10,505 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 04:30:10,506 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 04:30:10,506 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 04:30:10,507 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 04:30:10,515 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:30:10" (1/1) ... [2024-11-09 04:30:10,545 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:30:10" (1/1) ... [2024-11-09 04:30:10,639 INFO L138 Inliner]: procedures = 207, calls = 221, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1247 [2024-11-09 04:30:10,639 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 04:30:10,640 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 04:30:10,640 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 04:30:10,640 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 04:30:10,657 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:30:10" (1/1) ... [2024-11-09 04:30:10,661 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:30:10" (1/1) ... [2024-11-09 04:30:10,672 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:30:10" (1/1) ... [2024-11-09 04:30:10,676 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:30:10" (1/1) ... [2024-11-09 04:30:10,732 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:30:10" (1/1) ... [2024-11-09 04:30:10,744 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:30:10" (1/1) ... [2024-11-09 04:30:10,750 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:30:10" (1/1) ... [2024-11-09 04:30:10,755 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:30:10" (1/1) ... [2024-11-09 04:30:10,764 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 04:30:10,765 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 04:30:10,765 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 04:30:10,765 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 04:30:10,766 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:30:10" (1/1) ... [2024-11-09 04:30:10,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:30:10,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c979db-7a38-46fe-b55d-7ad2dfdf890d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:30:10,819 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c979db-7a38-46fe-b55d-7ad2dfdf890d/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 04:30:10,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c979db-7a38-46fe-b55d-7ad2dfdf890d/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 04:30:10,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-09 04:30:10,869 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-09 04:30:10,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 04:30:10,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 04:30:10,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 04:30:10,872 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 04:30:10,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 04:30:10,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 04:30:10,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 04:30:10,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 04:30:10,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 04:30:10,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 04:30:10,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 04:30:11,099 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 04:30:11,101 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 04:30:13,006 INFO L? ?]: Removed 290 outVars from TransFormulas that were not future-live. [2024-11-09 04:30:13,007 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 04:30:14,575 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 04:30:14,576 INFO L316 CfgBuilder]: Removed 50 assume(true) statements. [2024-11-09 04:30:14,577 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:30:14 BoogieIcfgContainer [2024-11-09 04:30:14,577 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 04:30:14,580 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 04:30:14,582 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 04:30:14,585 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 04:30:14,585 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:30:09" (1/3) ... [2024-11-09 04:30:14,586 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c87f42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:30:14, skipping insertion in model container [2024-11-09 04:30:14,586 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:30:10" (2/3) ... [2024-11-09 04:30:14,587 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c87f42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:30:14, skipping insertion in model container [2024-11-09 04:30:14,587 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:30:14" (3/3) ... [2024-11-09 04:30:14,589 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_nondet_test2-1.i [2024-11-09 04:30:14,609 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 04:30:14,609 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 04:30:14,689 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 04:30:14,696 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;@60c2ab52, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 04:30:14,696 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 04:30:14,701 INFO L276 IsEmpty]: Start isEmpty. Operand has 109 states, 103 states have (on average 1.7281553398058251) internal successors, (178), 104 states have internal predecessors, (178), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 04:30:14,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-09 04:30:14,709 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:30:14,709 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:30:14,710 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:30:14,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:30:14,716 INFO L85 PathProgramCache]: Analyzing trace with hash 2050054534, now seen corresponding path program 1 times [2024-11-09 04:30:14,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:30:14,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136036367] [2024-11-09 04:30:14,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:30:14,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:30:14,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:30:14,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:30:14,941 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:30:14,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136036367] [2024-11-09 04:30:14,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136036367] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:30:14,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:30:14,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 04:30:14,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906924096] [2024-11-09 04:30:14,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:30:14,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 04:30:14,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:30:14,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 04:30:14,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 04:30:14,983 INFO L87 Difference]: Start difference. First operand has 109 states, 103 states have (on average 1.7281553398058251) internal successors, (178), 104 states have internal predecessors, (178), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:30:17,040 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:30:19,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:30:21,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:30:23,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:30:24,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 04:30:24,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:30:24,564 INFO L93 Difference]: Finished difference Result 216 states and 365 transitions. [2024-11-09 04:30:24,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 04:30:24,571 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-09 04:30:24,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:30:24,578 INFO L225 Difference]: With dead ends: 216 [2024-11-09 04:30:24,578 INFO L226 Difference]: Without dead ends: 106 [2024-11-09 04:30:24,581 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 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 04:30:24,584 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2024-11-09 04:30:24,585 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 112 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 4 Unknown, 0 Unchecked, 9.5s Time] [2024-11-09 04:30:24,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-09 04:30:24,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2024-11-09 04:30:24,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 101 states have (on average 1.188118811881188) internal successors, (120), 101 states have internal predecessors, (120), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 04:30:24,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 126 transitions. [2024-11-09 04:30:24,627 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 126 transitions. Word has length 10 [2024-11-09 04:30:24,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:30:24,627 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 126 transitions. [2024-11-09 04:30:24,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:30:24,628 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 126 transitions. [2024-11-09 04:30:24,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 04:30:24,630 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:30:24,630 INFO L215 NwaCegarLoop]: trace histogram [1, 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 04:30:24,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 04:30:24,631 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:30:24,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:30:24,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1075366928, now seen corresponding path program 1 times [2024-11-09 04:30:24,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:30:24,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772124398] [2024-11-09 04:30:24,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:30:24,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:30:25,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:30:26,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:30:26,028 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:30:26,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772124398] [2024-11-09 04:30:26,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772124398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:30:26,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:30:26,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 04:30:26,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145475586] [2024-11-09 04:30:26,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:30:26,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 04:30:26,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:30:26,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 04:30:26,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-09 04:30:26,032 INFO L87 Difference]: Start difference. First operand 106 states and 126 transitions. Second operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:30:28,169 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:30:30,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:30:32,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:30:34,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:30:36,253 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:30:38,257 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:30:40,263 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:30:42,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:30:44,743 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:30:46,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:30:49,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:30:51,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:30:53,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:30:55,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:30:57,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:30:59,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:31:01,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:31:03,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:31:05,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:31:07,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:31:11,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 04:31:13,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 04:31:13,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:31:13,990 INFO L93 Difference]: Finished difference Result 212 states and 253 transitions. [2024-11-09 04:31:13,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 04:31:13,994 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-11-09 04:31:13,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:31:13,996 INFO L225 Difference]: With dead ends: 212 [2024-11-09 04:31:13,996 INFO L226 Difference]: Without dead ends: 166 [2024-11-09 04:31:13,997 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-09 04:31:13,998 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 69 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 3 mSolverCounterUnsat, 20 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 20 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.9s IncrementalHoareTripleChecker+Time [2024-11-09 04:31:13,999 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 561 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 188 Invalid, 20 Unknown, 0 Unchecked, 47.9s Time] [2024-11-09 04:31:14,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2024-11-09 04:31:14,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 108. [2024-11-09 04:31:14,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 103 states have (on average 1.1844660194174756) internal successors, (122), 103 states have internal predecessors, (122), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 04:31:14,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 128 transitions. [2024-11-09 04:31:14,013 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 128 transitions. Word has length 25 [2024-11-09 04:31:14,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:31:14,014 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 128 transitions. [2024-11-09 04:31:14,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:31:14,014 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 128 transitions. [2024-11-09 04:31:14,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-09 04:31:14,016 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:31:14,016 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:31:14,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 04:31:14,017 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:31:14,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:31:14,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1369231169, now seen corresponding path program 1 times [2024-11-09 04:31:14,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:31:14,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709366321] [2024-11-09 04:31:14,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:31:14,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:31:14,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:31:14,337 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:31:14,338 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:31:14,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709366321] [2024-11-09 04:31:14,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709366321] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:31:14,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:31:14,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 04:31:14,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822504835] [2024-11-09 04:31:14,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:31:14,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 04:31:14,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:31:14,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 04:31:14,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:31:14,342 INFO L87 Difference]: Start difference. First operand 108 states and 128 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 2 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:31:16,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:31:18,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:31:20,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:31:22,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:31:24,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:31:25,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:31:27,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:31:30,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:31:32,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:31:32,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:31:32,830 INFO L93 Difference]: Finished difference Result 254 states and 300 transitions. [2024-11-09 04:31:32,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:31:32,833 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 2 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2024-11-09 04:31:32,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:31:32,834 INFO L225 Difference]: With dead ends: 254 [2024-11-09 04:31:32,835 INFO L226 Difference]: Without dead ends: 150 [2024-11-09 04:31:32,835 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:31:32,836 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 33 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.5s IncrementalHoareTripleChecker+Time [2024-11-09 04:31:32,837 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 222 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 8 Unknown, 0 Unchecked, 18.5s Time] [2024-11-09 04:31:32,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-11-09 04:31:32,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 148. [2024-11-09 04:31:32,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 143 states have (on average 1.167832167832168) internal successors, (167), 143 states have internal predecessors, (167), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 04:31:32,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 173 transitions. [2024-11-09 04:31:32,849 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 173 transitions. Word has length 54 [2024-11-09 04:31:32,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:31:32,849 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 173 transitions. [2024-11-09 04:31:32,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 2 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:31:32,850 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 173 transitions. [2024-11-09 04:31:32,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-09 04:31:32,852 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:31:32,852 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:31:32,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 04:31:32,853 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:31:32,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:31:32,853 INFO L85 PathProgramCache]: Analyzing trace with hash 106261334, now seen corresponding path program 1 times [2024-11-09 04:31:32,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:31:32,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142772470] [2024-11-09 04:31:32,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:31:32,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:31:32,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:31:33,393 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 04:31:33,393 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:31:33,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142772470] [2024-11-09 04:31:33,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142772470] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:31:33,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:31:33,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 04:31:33,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43703115] [2024-11-09 04:31:33,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:31:33,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 04:31:33,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:31:33,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 04:31:33,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:31:33,398 INFO L87 Difference]: Start difference. First operand 148 states and 173 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 04:31:35,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:31:37,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:31:39,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:31:41,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:31:43,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:31:44,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:31:46,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:31:48,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:31:50,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:31:52,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:31:54,762 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:31:56,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:31:58,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:32:00,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:32:02,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:32:04,977 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:32:07,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 04:32:07,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:32:07,575 INFO L93 Difference]: Finished difference Result 326 states and 386 transitions. [2024-11-09 04:32:07,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 04:32:07,580 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 67 [2024-11-09 04:32:07,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:32:07,583 INFO L225 Difference]: With dead ends: 326 [2024-11-09 04:32:07,583 INFO L226 Difference]: Without dead ends: 198 [2024-11-09 04:32:07,584 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-09 04:32:07,585 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 299 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 3 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:32:07,586 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 220 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 80 Invalid, 16 Unknown, 0 Unchecked, 34.1s Time] [2024-11-09 04:32:07,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2024-11-09 04:32:07,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 124. [2024-11-09 04:32:07,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 119 states have (on average 1.1596638655462186) internal successors, (138), 119 states have internal predecessors, (138), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 04:32:07,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 144 transitions. [2024-11-09 04:32:07,607 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 144 transitions. Word has length 67 [2024-11-09 04:32:07,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:32:07,608 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 144 transitions. [2024-11-09 04:32:07,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 04:32:07,608 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 144 transitions. [2024-11-09 04:32:07,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-09 04:32:07,611 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:32:07,611 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:32:07,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 04:32:07,612 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:32:07,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:32:07,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1820447610, now seen corresponding path program 1 times [2024-11-09 04:32:07,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:32:07,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839088932] [2024-11-09 04:32:07,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:32:07,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:32:08,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:32:09,152 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 04:32:09,154 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:32:09,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839088932] [2024-11-09 04:32:09,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839088932] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:32:09,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1473200517] [2024-11-09 04:32:09,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:32:09,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:32:09,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c979db-7a38-46fe-b55d-7ad2dfdf890d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:32:09,161 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c979db-7a38-46fe-b55d-7ad2dfdf890d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:32:09,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c979db-7a38-46fe-b55d-7ad2dfdf890d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 04:32:16,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:32:16,373 INFO L255 TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 04:32:16,391 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:32:16,441 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-09 04:32:16,512 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 04:32:16,513 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:32:16,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1473200517] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:32:16,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 04:32:16,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 6 [2024-11-09 04:32:16,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623497329] [2024-11-09 04:32:16,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:32:16,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 04:32:16,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:32:16,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 04:32:16,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 04:32:16,517 INFO L87 Difference]: Start difference. First operand 124 states and 144 transitions. Second operand has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 04:32:18,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:32:20,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:32:23,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:32:25,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:32:27,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:32:29,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:32:31,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:32:33,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:32:35,354 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:32:37,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:32:39,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:32:41,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:32:43,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:32:45,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:32:47,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:32:50,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:32:52,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:32:54,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:32:56,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:32:57,837 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:33:00,135 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 04:33:00,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:33:00,583 INFO L93 Difference]: Finished difference Result 270 states and 318 transitions. [2024-11-09 04:33:00,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 04:33:00,586 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 75 [2024-11-09 04:33:00,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:33:00,589 INFO L225 Difference]: With dead ends: 270 [2024-11-09 04:33:00,589 INFO L226 Difference]: Without dead ends: 169 [2024-11-09 04:33:00,589 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 04:33:00,590 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 67 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 3 mSolverCounterUnsat, 18 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 18 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.0s IncrementalHoareTripleChecker+Time [2024-11-09 04:33:00,591 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 372 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 115 Invalid, 18 Unknown, 0 Unchecked, 44.0s Time] [2024-11-09 04:33:00,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2024-11-09 04:33:00,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 126. [2024-11-09 04:33:00,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 120 states have (on average 1.1666666666666667) internal successors, (140), 121 states have internal predecessors, (140), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-09 04:33:00,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 147 transitions. [2024-11-09 04:33:00,609 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 147 transitions. Word has length 75 [2024-11-09 04:33:00,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:33:00,610 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 147 transitions. [2024-11-09 04:33:00,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 04:33:00,610 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 147 transitions. [2024-11-09 04:33:00,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-09 04:33:00,612 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:33:00,613 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:33:00,653 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c979db-7a38-46fe-b55d-7ad2dfdf890d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 04:33:00,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c979db-7a38-46fe-b55d-7ad2dfdf890d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:33:00,814 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:33:00,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:33:00,815 INFO L85 PathProgramCache]: Analyzing trace with hash 737247092, now seen corresponding path program 1 times [2024-11-09 04:33:00,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:33:00,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004279913] [2024-11-09 04:33:00,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:33:00,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:33:01,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:33:02,546 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 04:33:02,546 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:33:02,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004279913] [2024-11-09 04:33:02,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004279913] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:33:02,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1738352267] [2024-11-09 04:33:02,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:33:02,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:33:02,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c979db-7a38-46fe-b55d-7ad2dfdf890d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:33:02,550 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c979db-7a38-46fe-b55d-7ad2dfdf890d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:33:02,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c979db-7a38-46fe-b55d-7ad2dfdf890d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 04:33:40,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:33:40,912 INFO L255 TraceCheckSpWp]: Trace formula consists of 591 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-09 04:33:40,917 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:33:40,923 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-09 04:33:40,998 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 04:33:40,998 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:33:41,138 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 04:33:41,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1738352267] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:33:41,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [480596338] [2024-11-09 04:33:41,174 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2024-11-09 04:33:41,174 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 04:33:41,178 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 04:33:41,185 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 04:33:41,186 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 04:34:18,522 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 397 for LOIs [2024-11-09 04:34:25,545 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 04:34:54,377 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (= |c_#Ultimate.C_memset_#ptr.offset| 0)) (.cse4 (= 44 |c_#Ultimate.C_memset_#amount|)) (.cse0 (<= 1 |c_#StackHeapBarrier|)) (.cse1 (= |c_#Ultimate.C_memset_#value| 0)) (.cse2 (= |c_#Ultimate.C_memset_#amount| 384))) (and (or (and .cse0 .cse1 .cse2) (and .cse0 .cse3 .cse1 .cse4)) (let ((.cse5 (= |c_#memory_$Pointer$.base| |c_old(#memory_$Pointer$.base)|)) (.cse14 (= |c_old(#memory_int)| |c_#memory_int|)) (.cse15 (= |c_#memory_$Pointer$.offset| |c_old(#memory_$Pointer$.offset)|))) (or (and .cse5 .cse0 (exists ((|v_#memory_$Pointer$.offset_314| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_315| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_21| (Array Int (Array Int Int))) (|v_#memory_int_412| (Array Int (Array Int Int))) (|v_#memory_int_34| (Array Int (Array Int Int))) (|v_#memory_int_127| (Array Int (Array Int Int))) (|v_#memory_int_414| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_315| (Array Int (Array Int Int))) (|v_#length_32| (Array Int Int)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_14| Int) (|v_#memory_$Pointer$.offset_21| (Array Int (Array Int Int))) (|v_ULTIMATE.start_main_~_ha_hashv~0#1_BEFORE_CALL_14| Int) (|v_#memory_$Pointer$.base_314| (Array Int (Array Int Int))) (|v_#valid_48| (Array Int Int))) (let ((.cse6 (select |v_#memory_$Pointer$.base_21| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_14|)) (.cse9 (select |v_#memory_$Pointer$.offset_21| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_14|)) (.cse11 (select |v_#memory_int_127| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_14|)) (.cse7 (select |v_#memory_$Pointer$.base_315| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_14|)) (.cse12 (select |v_#memory_$Pointer$.offset_315| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_14|)) (.cse10 (select |v_#memory_int_34| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_14|)) (.cse8 (select (select |c_old(#memory_$Pointer$.base)| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_14|) 8)) (.cse13 (select |v_#memory_int_414| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_14|))) (and (= (store |v_#memory_$Pointer$.base_21| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_14| (store (store .cse6 28 |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_14|) 32 (select .cse7 32))) |v_#memory_$Pointer$.base_315|) (not (= .cse8 0)) (= (store |v_#memory_$Pointer$.offset_314| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_14| (store (select |v_#memory_$Pointer$.offset_314| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_14|) 36 (select .cse9 36))) |v_#memory_$Pointer$.offset_21|) (= (store |v_#memory_int_34| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_14| (store (store .cse10 32 4) 16 (select .cse11 16))) |v_#memory_int_127|) (= |c_#valid| (store |v_#valid_48| .cse8 1)) (= (store |v_#memory_$Pointer$.base_314| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_14| (store (select |v_#memory_$Pointer$.base_314| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_14|) 36 (select .cse6 36))) |v_#memory_$Pointer$.base_21|) (= (store |v_#memory_$Pointer$.offset_21| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_14| (store (store .cse9 28 0) 32 (select .cse12 32))) |v_#memory_$Pointer$.offset_315|) (= (select |v_#valid_48| .cse8) 0) (= (store |v_#memory_int_127| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_14| (store .cse11 12 (select .cse13 12))) |v_#memory_int_414|) (= (store |v_#memory_$Pointer$.base_315| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_14| (store (store (store .cse7 16 0) 12 0) 8 .cse8)) |c_old(#memory_$Pointer$.base)|) (= |c_#length| (store |v_#length_32| .cse8 44)) (= |c_old(#memory_$Pointer$.offset)| (store |v_#memory_$Pointer$.offset_315| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_14| (store (store (store .cse12 16 0) 12 0) 8 0))) (<= (+ .cse8 1) |c_#StackHeapBarrier|) (= |v_#memory_int_34| (store |v_#memory_int_412| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_14| (store (store (select |v_#memory_int_412| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_14|) 36 |v_ULTIMATE.start_main_~_ha_hashv~0#1_BEFORE_CALL_14|) 28 (select .cse10 28)))) (= |c_#Ultimate.C_memset_#ptr.base| .cse8) (= (store |v_#memory_int_414| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_14| (store .cse13 8 (select (select |c_old(#memory_int)| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_14|) 8))) |c_old(#memory_int)|)))) .cse14 .cse3 .cse15 .cse1 .cse4) (and .cse5 .cse0 .cse14 (exists ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13| Int) (|v_#memory_int_129| (Array Int (Array Int Int))) (|v_#memory_int_415| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_106| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_107| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_317| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_108| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_317| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_108| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_107| (Array Int (Array Int Int))) (|v_#memory_int_128| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_106| (Array Int (Array Int Int))) (|v_#length_33| (Array Int Int)) (|v_ULTIMATE.start_main_#t~mem54#1.base_13| Int) (|v_ULTIMATE.start_main_~_ha_hashv~0#1_BEFORE_CALL_13| Int) (|v_#valid_49| (Array Int Int)) (|v_ULTIMATE.start_main_#t~malloc61#1.base_6| Int)) (let ((.cse35 (select (select |v_#memory_$Pointer$.base_317| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|) 8)) (.cse36 (+ (select (select |v_#memory_$Pointer$.offset_317| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|) 8) 16)) (.cse27 (select (select |v_#memory_$Pointer$.base_107| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|) 8)) (.cse28 (select (select |v_#memory_$Pointer$.offset_108| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|) 8))) (let ((.cse52 (select (select |c_old(#memory_$Pointer$.base)| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|) 8)) (.cse53 (select (select |c_old(#memory_$Pointer$.offset)| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|) 8)) (.cse33 (store |v_#memory_$Pointer$.offset_108| .cse27 (store (select |v_#memory_$Pointer$.offset_108| .cse27) .cse28 0))) (.cse34 (store |v_#memory_$Pointer$.base_107| .cse27 (store (select |v_#memory_$Pointer$.base_107| .cse27) .cse28 |v_ULTIMATE.start_main_#t~malloc61#1.base_6|))) (.cse23 (store |v_#memory_$Pointer$.offset_317| .cse35 (store (select |v_#memory_$Pointer$.offset_317| .cse35) .cse36 8))) (.cse18 (store |v_#memory_$Pointer$.base_317| .cse35 (store (select |v_#memory_$Pointer$.base_317| .cse35) .cse36 |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|)))) (let ((.cse19 (select (select .cse18 |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|) 8)) (.cse20 (+ (select (select .cse23 |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|) 8) 4)) (.cse16 (select (select .cse34 |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|) 8)) (.cse17 (+ 40 (select (select .cse33 |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|) 8))) (.cse30 (select (select |v_#memory_$Pointer$.base_108| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|) 8)) (.cse31 (+ (select (select |v_#memory_$Pointer$.offset_106| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|) 8) 20)) (.cse21 (select (select |v_#memory_$Pointer$.base_106| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|) 8)) (.cse22 (+ 8 (select (select |v_#memory_$Pointer$.offset_107| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|) 8))) (.cse24 (select (select |c_old(#memory_$Pointer$.offset)| .cse52) .cse53)) (.cse25 (select (select |c_old(#memory_$Pointer$.base)| .cse52) .cse53))) (and (= |c_old(#memory_int)| (store |v_#memory_int_129| .cse16 (store (select |v_#memory_int_129| .cse16) .cse17 2685476833))) (= |c_#valid| (store |v_#valid_49| |v_ULTIMATE.start_main_#t~malloc61#1.base_6| 1)) (= (store .cse18 .cse19 (store (select .cse18 .cse19) .cse20 (select (select |v_#memory_$Pointer$.base_106| .cse19) .cse20))) |v_#memory_$Pointer$.base_106|) (= (store |v_#memory_$Pointer$.offset_107| .cse21 (store (select |v_#memory_$Pointer$.offset_107| .cse21) .cse22 (select (select |v_#memory_$Pointer$.offset_106| .cse21) .cse22))) |v_#memory_$Pointer$.offset_106|) (= (store .cse23 .cse19 (store (select .cse23 .cse19) .cse20 (select (select |v_#memory_$Pointer$.offset_107| .cse19) .cse20))) |v_#memory_$Pointer$.offset_107|) (or (not (= .cse24 0)) (not (= .cse25 0))) (= (let ((.cse26 (let ((.cse29 (let ((.cse32 (store |v_#memory_int_128| .cse19 (store (select |v_#memory_int_128| .cse19) .cse20 32)))) (store .cse32 .cse21 (store (select .cse32 .cse21) .cse22 5))))) (store .cse29 .cse30 (store (select .cse29 .cse30) .cse31 8))))) (store .cse26 .cse27 (store (select .cse26 .cse27) .cse28 (select (select |v_#memory_int_129| .cse27) .cse28)))) |v_#memory_int_129|) (= (store |v_#memory_$Pointer$.offset_106| .cse30 (store (select |v_#memory_$Pointer$.offset_106| .cse30) .cse31 (select (select |v_#memory_$Pointer$.offset_108| .cse30) .cse31))) |v_#memory_$Pointer$.offset_108|) (= (store .cse33 .cse16 (store (select .cse33 .cse16) .cse17 (select (select |c_old(#memory_$Pointer$.offset)| .cse16) .cse17))) |c_old(#memory_$Pointer$.offset)|) (= (select |v_#valid_49| |v_ULTIMATE.start_main_#t~malloc61#1.base_6|) 0) (= (store .cse34 .cse16 (store (select .cse34 .cse16) .cse17 (select (select |c_old(#memory_$Pointer$.base)| .cse16) .cse17))) |c_old(#memory_$Pointer$.base)|) (<= (+ |v_ULTIMATE.start_main_#t~malloc61#1.base_6| 1) |c_#StackHeapBarrier|) (not (= |v_ULTIMATE.start_main_#t~malloc61#1.base_6| 0)) (= (store |v_#memory_$Pointer$.base_108| .cse30 (store (select |v_#memory_$Pointer$.base_108| .cse30) .cse31 (select (select |v_#memory_$Pointer$.base_107| .cse30) .cse31))) |v_#memory_$Pointer$.base_107|) (= (store |v_#memory_int_415| .cse35 (store (select |v_#memory_int_415| .cse35) .cse36 (select (select |v_#memory_int_128| .cse35) .cse36))) |v_#memory_int_128|) (let ((.cse37 (exists ((|v_#memory_$Pointer$.offset_314| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_315| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_21| (Array Int (Array Int Int)))) (let ((.cse51 (select |v_#memory_$Pointer$.offset_21| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|))) (and (= (store |v_#memory_$Pointer$.offset_314| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13| (store (select |v_#memory_$Pointer$.offset_314| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|) 36 (select .cse51 36))) |v_#memory_$Pointer$.offset_21|) (= |v_#memory_$Pointer$.offset_315| (store |v_#memory_$Pointer$.offset_21| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13| (store (store .cse51 28 0) 32 (select (select |v_#memory_$Pointer$.offset_315| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|) 32)))))))) (.cse41 (exists ((|v_#Ultimate.C_memset_#t~loopctr226_27| Int)) (and (<= 0 |v_#Ultimate.C_memset_#t~loopctr226_27|) (<= 44 (mod |v_#Ultimate.C_memset_#t~loopctr226_27| 4294967296)))))) (or (and .cse37 (exists ((|v_#memory_int_412| (Array Int (Array Int Int))) (|v_#memory_int_34| (Array Int (Array Int Int))) (|v_#memory_int_414| (Array Int (Array Int Int))) (|v_#memory_int_127| (Array Int (Array Int Int))) (|v_#memory_int_BEFORE_CALL_18| (Array Int (Array Int Int)))) (let ((.cse40 (select |v_#memory_int_127| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|)) (.cse38 (select |v_#memory_int_414| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|)) (.cse39 (select |v_#memory_int_34| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|))) (and (= (store |v_#memory_int_414| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13| (store .cse38 8 (select (select |v_#memory_int_BEFORE_CALL_18| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|) 8))) |v_#memory_int_BEFORE_CALL_18|) (= (store |v_#memory_int_34| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13| (store (store .cse39 32 4) 16 (select .cse40 16))) |v_#memory_int_127|) (= (store |v_#memory_int_127| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13| (store .cse40 12 (select .cse38 12))) |v_#memory_int_414|) (= |v_#memory_int_34| (store |v_#memory_int_412| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13| (store (store (select |v_#memory_int_412| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|) 36 |v_ULTIMATE.start_main_~_ha_hashv~0#1_BEFORE_CALL_13|) 28 (select .cse39 28))))))) .cse41 (exists ((|v_#memory_$Pointer$.base_21| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_315| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_314| (Array Int (Array Int Int))) (|v_#length_32| (Array Int Int)) (|v_old(#memory_$Pointer$.base)_AFTER_CALL_13| (Array Int (Array Int Int))) (|v_#valid_48| (Array Int Int))) (let ((.cse43 (select |v_#memory_$Pointer$.base_21| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|)) (.cse44 (select |v_#memory_$Pointer$.base_315| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|)) (.cse42 (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_13| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|) 8))) (and (= (store |v_#length_32| .cse42 44) |v_#length_33|) (not (= .cse42 0)) (= (select |v_#valid_48| .cse42) 0) (<= (+ .cse42 1) |c_#StackHeapBarrier|) (= (store |v_#memory_$Pointer$.base_314| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13| (store (select |v_#memory_$Pointer$.base_314| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|) 36 (select .cse43 36))) |v_#memory_$Pointer$.base_21|) (= (store |v_#memory_$Pointer$.base_315| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13| (store (store (store .cse44 16 0) 12 0) 8 .cse42)) |v_old(#memory_$Pointer$.base)_AFTER_CALL_13|) (= (store |v_#valid_48| .cse42 1) |v_#valid_49|) (= |v_#memory_$Pointer$.base_315| (store |v_#memory_$Pointer$.base_21| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13| (store (store .cse43 28 |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|) 32 (select .cse44 32)))) (= |v_ULTIMATE.start_main_#t~mem54#1.base_13| .cse42))))) (and .cse37 .cse41 (exists ((|v_#memory_$Pointer$.base_21| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_315| (Array Int (Array Int Int))) (|v_old(#memory_$Pointer$.base)_AFTER_CALL_14| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_314| (Array Int (Array Int Int))) (|v_#length_32| (Array Int Int)) (|v_#valid_48| (Array Int Int))) (let ((.cse45 (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_14| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|) 8)) (.cse46 (select |v_#memory_$Pointer$.base_21| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|)) (.cse47 (select |v_#memory_$Pointer$.base_315| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|))) (and (<= (+ .cse45 1) |c_#StackHeapBarrier|) (= (store |v_#valid_48| .cse45 1) |v_#valid_49|) (= (store |v_#length_32| .cse45 44) |v_#length_33|) (= (select |v_#valid_48| .cse45) 0) (not (= .cse45 0)) (= (store |v_#memory_$Pointer$.base_314| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13| (store (select |v_#memory_$Pointer$.base_314| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|) 36 (select .cse46 36))) |v_#memory_$Pointer$.base_21|) (= .cse45 |v_ULTIMATE.start_main_#t~mem54#1.base_13|) (= (store |v_#memory_$Pointer$.base_315| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13| (store (store (store .cse47 16 0) 12 0) 8 .cse45)) |v_old(#memory_$Pointer$.base)_AFTER_CALL_14|) (= |v_#memory_$Pointer$.base_315| (store |v_#memory_$Pointer$.base_21| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13| (store (store .cse46 28 |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|) 32 (select .cse47 32))))))) (exists ((|v_#memory_int_412| (Array Int (Array Int Int))) (|v_#memory_int_34| (Array Int (Array Int Int))) (|v_#memory_int_127| (Array Int (Array Int Int))) (|v_#memory_int_414| (Array Int (Array Int Int))) (|v_#memory_int_BEFORE_CALL_20| (Array Int (Array Int Int)))) (let ((.cse50 (select |v_#memory_int_127| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|)) (.cse48 (select |v_#memory_int_414| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|)) (.cse49 (select |v_#memory_int_34| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|))) (and (= (store |v_#memory_int_414| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13| (store .cse48 8 (select (select |v_#memory_int_BEFORE_CALL_20| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|) 8))) |v_#memory_int_BEFORE_CALL_20|) (= (store |v_#memory_int_34| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13| (store (store .cse49 32 4) 16 (select .cse50 16))) |v_#memory_int_127|) (= (store |v_#memory_int_127| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13| (store .cse50 12 (select .cse48 12))) |v_#memory_int_414|) (= |v_#memory_int_34| (store |v_#memory_int_412| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13| (store (store (select |v_#memory_int_412| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|) 36 |v_ULTIMATE.start_main_~_ha_hashv~0#1_BEFORE_CALL_13|) 28 (select .cse49 28)))))))))) (= (store |v_#memory_$Pointer$.base_106| .cse21 (store (select |v_#memory_$Pointer$.base_106| .cse21) .cse22 (select (select |v_#memory_$Pointer$.base_108| .cse21) .cse22))) |v_#memory_$Pointer$.base_108|) (= |c_#Ultimate.C_memset_#ptr.offset| .cse24) (= .cse25 |c_#Ultimate.C_memset_#ptr.base|) (= (store |v_#length_33| |v_ULTIMATE.start_main_#t~malloc61#1.base_6| 384) |c_#length|)))))) .cse15 .cse1 .cse2))))) is different from false [2024-11-09 04:38:10,325 WARN L286 SmtUtils]: Spent 2.77m on a formula simplification that was a NOOP. DAG size: 307 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 04:41:49,724 WARN L286 SmtUtils]: Spent 3.10m on a formula simplification that was a NOOP. DAG size: 312 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 04:43:56,330 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3372#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~tmp~0#1.base| 0) (= |ULTIMATE.start_main_~users~0#1.offset| 0) (= |ULTIMATE.start_main_~tmp~0#1.offset| 0) (<= 2 |ULTIMATE.start_main_~#i~0#1.base|) (= |ULTIMATE.start_main_~user~0#1.offset| 0) (= |ULTIMATE.start_main_~#i~0#1.offset| 0))' at error location [2024-11-09 04:43:56,330 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 04:43:56,330 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:43:56,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 5] total 11 [2024-11-09 04:43:56,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399917328] [2024-11-09 04:43:56,330 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 04:43:56,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 04:43:56,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:43:56,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 04:43:56,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=1542, Unknown=93, NotChecked=82, Total=1892 [2024-11-09 04:43:56,334 INFO L87 Difference]: Start difference. First operand 126 states and 147 transitions. Second operand has 11 states, 8 states have (on average 10.375) internal successors, (83), 11 states have internal predecessors, (83), 2 states have call successors, (3), 1 states have call predecessors, (3), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 04:43:59,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:44:01,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:44:03,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:44:05,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:44:07,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:44:09,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:44:10,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:44:16,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:44:18,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:44:20,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:44:22,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:44:24,743 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:44:26,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:44:28,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:44:30,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:44:32,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:44:34,762 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:44:36,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:44:38,770 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:44:40,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:44:42,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:44:44,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:44:46,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:44:48,800 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:44:50,803 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:44:52,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:44:54,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:44:56,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:44:59,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:45:01,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:45:03,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:45:05,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:45:07,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:45:09,306 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:45:11,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:45:13,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:45:15,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:45:17,334 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:45:19,349 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:45:21,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []