./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-crafted/mapsum5.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4272fe74-df1f-4282-9e77-579d05e5bb96/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4272fe74-df1f-4282-9e77-579d05e5bb96/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_4272fe74-df1f-4282-9e77-579d05e5bb96/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4272fe74-df1f-4282-9e77-579d05e5bb96/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-crafted/mapsum5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4272fe74-df1f-4282-9e77-579d05e5bb96/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_4272fe74-df1f-4282-9e77-579d05e5bb96/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 547252845d807a057f585b63b3488b50cdb63f4784535b1d9fe87f3af67ef42c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:10:10,227 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:10:10,306 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4272fe74-df1f-4282-9e77-579d05e5bb96/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 05:10:10,311 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:10:10,312 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:10:10,337 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:10:10,338 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:10:10,338 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:10:10,339 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:10:10,339 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:10:10,339 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:10:10,340 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:10:10,340 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:10:10,341 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:10:10,341 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:10:10,342 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:10:10,342 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:10:10,342 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:10:10,343 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:10:10,343 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:10:10,344 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:10:10,344 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:10:10,345 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:10:10,345 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:10:10,346 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:10:10,346 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:10:10,347 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:10:10,347 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:10:10,347 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:10:10,348 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:10:10,348 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:10:10,349 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:10:10,349 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:10:10,349 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:10:10,350 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:10:10,350 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:10:10,351 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:10:10,351 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:10:10,351 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:10:10,352 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:10:10,352 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:10:10,353 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:10:10,356 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:10:10,356 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:10:10,356 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:10:10,356 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:10:10,357 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:10:10,357 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_4272fe74-df1f-4282-9e77-579d05e5bb96/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4272fe74-df1f-4282-9e77-579d05e5bb96/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 547252845d807a057f585b63b3488b50cdb63f4784535b1d9fe87f3af67ef42c [2024-11-09 05:10:10,591 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:10:10,622 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:10:10,626 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:10:10,628 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:10:10,629 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:10:10,630 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4272fe74-df1f-4282-9e77-579d05e5bb96/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/array-crafted/mapsum5.i Unable to find full path for "g++" [2024-11-09 05:10:12,625 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:10:12,796 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:10:12,797 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4272fe74-df1f-4282-9e77-579d05e5bb96/sv-benchmarks/c/array-crafted/mapsum5.i [2024-11-09 05:10:12,804 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4272fe74-df1f-4282-9e77-579d05e5bb96/bin/utaipan-verify-YMUCfTKeje/data/6b70c5619/5824dff79eb948199a5121c0168fd16d/FLAG4a469d505 [2024-11-09 05:10:12,816 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4272fe74-df1f-4282-9e77-579d05e5bb96/bin/utaipan-verify-YMUCfTKeje/data/6b70c5619/5824dff79eb948199a5121c0168fd16d [2024-11-09 05:10:12,819 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:10:12,820 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:10:12,822 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:10:12,822 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:10:12,829 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:10:12,829 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:10:12" (1/1) ... [2024-11-09 05:10:12,833 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fe6566f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:12, skipping insertion in model container [2024-11-09 05:10:12,833 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:10:12" (1/1) ... [2024-11-09 05:10:12,855 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:10:13,070 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_4272fe74-df1f-4282-9e77-579d05e5bb96/sv-benchmarks/c/array-crafted/mapsum5.i[1380,1393] [2024-11-09 05:10:13,073 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:10:13,081 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:10:13,104 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_4272fe74-df1f-4282-9e77-579d05e5bb96/sv-benchmarks/c/array-crafted/mapsum5.i[1380,1393] [2024-11-09 05:10:13,105 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:10:13,122 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:10:13,123 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:13 WrapperNode [2024-11-09 05:10:13,123 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:10:13,124 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:10:13,124 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:10:13,125 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:10:13,133 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:13" (1/1) ... [2024-11-09 05:10:13,139 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:13" (1/1) ... [2024-11-09 05:10:13,159 INFO L138 Inliner]: procedures = 16, calls = 21, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 72 [2024-11-09 05:10:13,159 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:10:13,160 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:10:13,160 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:10:13,160 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:10:13,170 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:13" (1/1) ... [2024-11-09 05:10:13,171 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:13" (1/1) ... [2024-11-09 05:10:13,173 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:13" (1/1) ... [2024-11-09 05:10:13,173 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:13" (1/1) ... [2024-11-09 05:10:13,179 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:13" (1/1) ... [2024-11-09 05:10:13,182 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:13" (1/1) ... [2024-11-09 05:10:13,183 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:13" (1/1) ... [2024-11-09 05:10:13,184 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:13" (1/1) ... [2024-11-09 05:10:13,186 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:10:13,187 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:10:13,187 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:10:13,188 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:10:13,189 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:13" (1/1) ... [2024-11-09 05:10:13,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:10:13,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4272fe74-df1f-4282-9e77-579d05e5bb96/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:10:13,228 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4272fe74-df1f-4282-9e77-579d05e5bb96/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:10:13,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4272fe74-df1f-4282-9e77-579d05e5bb96/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:10:13,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:10:13,258 INFO L130 BoogieDeclarations]: Found specification of procedure mapsum [2024-11-09 05:10:13,258 INFO L138 BoogieDeclarations]: Found implementation of procedure mapsum [2024-11-09 05:10:13,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:10:13,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 05:10:13,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 05:10:13,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:10:13,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:10:13,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 05:10:13,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 05:10:13,335 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:10:13,338 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:10:13,580 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2024-11-09 05:10:13,580 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:10:13,614 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:10:13,617 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 05:10:13,618 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:10:13 BoogieIcfgContainer [2024-11-09 05:10:13,618 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:10:13,622 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:10:13,626 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:10:13,630 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:10:13,631 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:10:12" (1/3) ... [2024-11-09 05:10:13,632 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dd5799a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:10:13, skipping insertion in model container [2024-11-09 05:10:13,632 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:13" (2/3) ... [2024-11-09 05:10:13,633 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dd5799a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:10:13, skipping insertion in model container [2024-11-09 05:10:13,634 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:10:13" (3/3) ... [2024-11-09 05:10:13,636 INFO L112 eAbstractionObserver]: Analyzing ICFG mapsum5.i [2024-11-09 05:10:13,691 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:10:13,691 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 05:10:13,761 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:10:13,768 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;@38369cc2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:10:13,769 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 05:10:13,773 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 20 states have internal predecessors, (28), 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 05:10:13,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-09 05:10:13,782 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:10:13,783 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:10:13,784 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:10:13,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:10:13,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1160365444, now seen corresponding path program 1 times [2024-11-09 05:10:13,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:10:13,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483593226] [2024-11-09 05:10:13,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:10:13,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:10:14,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:10:14,403 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:10:14,404 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:10:14,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483593226] [2024-11-09 05:10:14,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483593226] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:10:14,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:10:14,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:10:14,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120293014] [2024-11-09 05:10:14,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:10:14,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:10:14,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:10:14,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:10:14,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:10:14,461 INFO L87 Difference]: Start difference. First operand has 25 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 20 states have internal predecessors, (28), 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 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 05:10:14,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:10:14,578 INFO L93 Difference]: Finished difference Result 48 states and 65 transitions. [2024-11-09 05:10:14,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:10:14,583 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 26 [2024-11-09 05:10:14,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:10:14,594 INFO L225 Difference]: With dead ends: 48 [2024-11-09 05:10:14,594 INFO L226 Difference]: Without dead ends: 24 [2024-11-09 05:10:14,599 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 05:10:14,607 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 1 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:10:14,609 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 42 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:10:14,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2024-11-09 05:10:14,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2024-11-09 05:10:14,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 19 states have internal predecessors, (25), 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 05:10:14,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 31 transitions. [2024-11-09 05:10:14,663 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 31 transitions. Word has length 26 [2024-11-09 05:10:14,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:10:14,663 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 31 transitions. [2024-11-09 05:10:14,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 05:10:14,665 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions. [2024-11-09 05:10:14,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-09 05:10:14,668 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:10:14,669 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:10:14,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 05:10:14,670 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:10:14,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:10:14,672 INFO L85 PathProgramCache]: Analyzing trace with hash -675408767, now seen corresponding path program 1 times [2024-11-09 05:10:14,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:10:14,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956647977] [2024-11-09 05:10:14,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:10:14,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:10:14,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:10:14,920 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-09 05:10:14,921 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:10:14,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956647977] [2024-11-09 05:10:14,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956647977] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:10:14,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1233091142] [2024-11-09 05:10:14,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:10:14,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:10:14,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4272fe74-df1f-4282-9e77-579d05e5bb96/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:10:14,927 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4272fe74-df1f-4282-9e77-579d05e5bb96/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:10:14,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4272fe74-df1f-4282-9e77-579d05e5bb96/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 05:10:15,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:10:15,038 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:10:15,044 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:10:15,126 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:10:15,127 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:10:15,194 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:10:15,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1233091142] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:10:15,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1231916167] [2024-11-09 05:10:15,224 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2024-11-09 05:10:15,225 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:10:15,230 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:10:15,237 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:10:15,239 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:10:15,939 INFO L197 IcfgInterpreter]: Interpreting procedure mapsum with input of size 14 for LOIs [2024-11-09 05:10:15,948 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:10:16,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1231916167] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:10:16,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:10:16,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5, 4, 4] total 15 [2024-11-09 05:10:16,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170416539] [2024-11-09 05:10:16,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:10:16,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 05:10:16,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:10:16,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 05:10:16,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-11-09 05:10:16,227 INFO L87 Difference]: Start difference. First operand 24 states and 31 transitions. Second operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 6 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 05:10:16,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:10:16,718 INFO L93 Difference]: Finished difference Result 42 states and 58 transitions. [2024-11-09 05:10:16,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 05:10:16,719 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 6 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 28 [2024-11-09 05:10:16,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:10:16,720 INFO L225 Difference]: With dead ends: 42 [2024-11-09 05:10:16,721 INFO L226 Difference]: Without dead ends: 26 [2024-11-09 05:10:16,722 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2024-11-09 05:10:16,725 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 39 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:10:16,727 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 14 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:10:16,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-09 05:10:16,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2024-11-09 05:10:16,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 21 states have internal predecessors, (27), 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 05:10:16,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2024-11-09 05:10:16,746 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 28 [2024-11-09 05:10:16,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:10:16,748 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2024-11-09 05:10:16,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 6 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 05:10:16,748 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2024-11-09 05:10:16,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-09 05:10:16,751 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:10:16,751 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:10:16,779 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4272fe74-df1f-4282-9e77-579d05e5bb96/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 05:10:16,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4272fe74-df1f-4282-9e77-579d05e5bb96/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:10:16,952 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:10:16,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:10:16,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1133599408, now seen corresponding path program 1 times [2024-11-09 05:10:16,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:10:16,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165174168] [2024-11-09 05:10:16,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:10:16,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:10:16,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:10:17,127 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-09 05:10:17,128 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:10:17,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165174168] [2024-11-09 05:10:17,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165174168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:10:17,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:10:17,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:10:17,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590573941] [2024-11-09 05:10:17,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:10:17,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:10:17,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:10:17,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:10:17,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:10:17,131 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 05:10:17,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:10:17,203 INFO L93 Difference]: Finished difference Result 41 states and 51 transitions. [2024-11-09 05:10:17,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:10:17,204 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 34 [2024-11-09 05:10:17,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:10:17,205 INFO L225 Difference]: With dead ends: 41 [2024-11-09 05:10:17,205 INFO L226 Difference]: Without dead ends: 28 [2024-11-09 05:10:17,206 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:10:17,207 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 22 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:10:17,208 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 20 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:10:17,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-11-09 05:10:17,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2024-11-09 05:10:17,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 23 states have internal predecessors, (29), 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 05:10:17,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2024-11-09 05:10:17,228 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 35 transitions. Word has length 34 [2024-11-09 05:10:17,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:10:17,230 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 35 transitions. [2024-11-09 05:10:17,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 05:10:17,230 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2024-11-09 05:10:17,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-09 05:10:17,232 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:10:17,233 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:10:17,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 05:10:17,234 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:10:17,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:10:17,235 INFO L85 PathProgramCache]: Analyzing trace with hash -2059717323, now seen corresponding path program 1 times [2024-11-09 05:10:17,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:10:17,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778895255] [2024-11-09 05:10:17,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:10:17,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:10:17,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:10:17,434 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-09 05:10:17,434 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:10:17,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778895255] [2024-11-09 05:10:17,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778895255] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:10:17,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1908722608] [2024-11-09 05:10:17,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:10:17,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:10:17,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4272fe74-df1f-4282-9e77-579d05e5bb96/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:10:17,444 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4272fe74-df1f-4282-9e77-579d05e5bb96/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:10:17,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4272fe74-df1f-4282-9e77-579d05e5bb96/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 05:10:17,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:10:17,569 INFO L255 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:10:17,571 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:10:17,613 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-09 05:10:17,614 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:10:17,667 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-09 05:10:17,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1908722608] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:10:17,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2032427121] [2024-11-09 05:10:17,672 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2024-11-09 05:10:17,674 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:10:17,675 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:10:17,676 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:10:17,676 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:10:18,737 INFO L197 IcfgInterpreter]: Interpreting procedure mapsum with input of size 3 for LOIs [2024-11-09 05:10:18,781 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:10:24,602 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '726#(and (exists ((|v_ULTIMATE.start_main_~ret2~0#1_18| Int) (|v_ULTIMATE.start_main_~ret5~0#1_18| Int) (|v_ULTIMATE.start_main_~ret~1#1_18| Int)) (and (or (not (= |v_ULTIMATE.start_main_~ret~1#1_18| |v_ULTIMATE.start_main_~ret5~0#1_18|)) (not (= |v_ULTIMATE.start_main_~ret2~0#1_18| |v_ULTIMATE.start_main_~ret~1#1_18|))) (<= 0 (+ |v_ULTIMATE.start_main_~ret5~0#1_18| 2147483648)) (or (and (exists ((v_mapsum_~ret~0_35 Int)) (= (mod v_mapsum_~ret~0_35 4294967296) (+ |v_ULTIMATE.start_main_~ret5~0#1_18| 4294967296))) (exists ((|v_#memory_int_34| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_34| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_34| |ULTIMATE.start_main_~#x~0#1.base|) (+ (* ~N~0 4) (- 4)) (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) (+ (* ~N~0 4) (- 4))))))) (exists ((|v_ULTIMATE.start_main_~i~2#1_24| Int)) (and (<= ~N~0 (+ |v_ULTIMATE.start_main_~i~2#1_24| 1)) (<= 1 |#StackHeapBarrier|) (<= 0 (+ |v_ULTIMATE.start_main_~ret2~0#1_18| 2147483648)) (<= |v_ULTIMATE.start_main_~ret2~0#1_18| 2147483647) (<= ~N~0 2147483647) (<= |v_ULTIMATE.start_main_~ret~1#1_18| 2147483647) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (<= 0 (+ |v_ULTIMATE.start_main_~ret~1#1_18| 2147483648)) (<= 2 ~N~0)))) (and (exists ((v_mapsum_~ret~0_35 Int)) (= (mod v_mapsum_~ret~0_35 4294967296) |v_ULTIMATE.start_main_~ret5~0#1_18|)) (exists ((|v_#memory_int_34| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_34| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_34| |ULTIMATE.start_main_~#x~0#1.base|) (+ (* ~N~0 4) (- 4)) (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) (+ (* ~N~0 4) (- 4))))))) (exists ((|v_ULTIMATE.start_main_~i~2#1_24| Int)) (and (<= ~N~0 (+ |v_ULTIMATE.start_main_~i~2#1_24| 1)) (<= 1 |#StackHeapBarrier|) (<= 0 (+ |v_ULTIMATE.start_main_~ret2~0#1_18| 2147483648)) (<= |v_ULTIMATE.start_main_~ret2~0#1_18| 2147483647) (<= ~N~0 2147483647) (<= |v_ULTIMATE.start_main_~ret~1#1_18| 2147483647) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (<= 0 (+ |v_ULTIMATE.start_main_~ret~1#1_18| 2147483648)) (<= 2 ~N~0))))) (<= |v_ULTIMATE.start_main_~ret5~0#1_18| 2147483647))) (= |ULTIMATE.start_main_~#x~0#1.offset| 0))' at error location [2024-11-09 05:10:24,602 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:10:24,602 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:10:24,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-09 05:10:24,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552515105] [2024-11-09 05:10:24,603 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:10:24,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 05:10:24,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:10:24,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 05:10:24,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=496, Unknown=5, NotChecked=0, Total=600 [2024-11-09 05:10:24,605 INFO L87 Difference]: Start difference. First operand 28 states and 35 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-09 05:10:24,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:10:24,686 INFO L93 Difference]: Finished difference Result 52 states and 66 transitions. [2024-11-09 05:10:24,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:10:24,687 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 36 [2024-11-09 05:10:24,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:10:24,688 INFO L225 Difference]: With dead ends: 52 [2024-11-09 05:10:24,688 INFO L226 Difference]: Without dead ends: 30 [2024-11-09 05:10:24,689 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 85 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=99, Invalid=496, Unknown=5, NotChecked=0, Total=600 [2024-11-09 05:10:24,690 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 1 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:10:24,691 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 60 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:10:24,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-11-09 05:10:24,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2024-11-09 05:10:24,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 24 states have internal predecessors, (29), 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 05:10:24,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 35 transitions. [2024-11-09 05:10:24,706 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 35 transitions. Word has length 36 [2024-11-09 05:10:24,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:10:24,706 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 35 transitions. [2024-11-09 05:10:24,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-09 05:10:24,707 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2024-11-09 05:10:24,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-09 05:10:24,708 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:10:24,708 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:10:24,733 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4272fe74-df1f-4282-9e77-579d05e5bb96/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-09 05:10:24,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4272fe74-df1f-4282-9e77-579d05e5bb96/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:10:24,913 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:10:24,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:10:24,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1777201926, now seen corresponding path program 2 times [2024-11-09 05:10:24,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:10:24,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529779993] [2024-11-09 05:10:24,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:10:24,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:10:24,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:10:25,022 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-09 05:10:25,022 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:10:25,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529779993] [2024-11-09 05:10:25,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529779993] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:10:25,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [274902914] [2024-11-09 05:10:25,023 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:10:25,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:10:25,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4272fe74-df1f-4282-9e77-579d05e5bb96/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:10:25,025 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4272fe74-df1f-4282-9e77-579d05e5bb96/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:10:25,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4272fe74-df1f-4282-9e77-579d05e5bb96/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 05:10:25,126 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 05:10:25,126 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:10:25,128 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:10:25,129 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:10:25,223 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-09 05:10:25,224 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:10:25,352 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-09 05:10:25,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [274902914] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:10:25,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1471100058] [2024-11-09 05:10:25,355 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2024-11-09 05:10:25,357 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:10:25,357 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:10:25,358 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:10:25,358 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:10:25,976 INFO L197 IcfgInterpreter]: Interpreting procedure mapsum with input of size 3 for LOIs [2024-11-09 05:10:26,008 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:10:27,611 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1090#(and (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (exists ((|v_ULTIMATE.start_main_~ret~1#1_21| Int) (|v_ULTIMATE.start_main_~ret2~0#1_21| Int) (|v_ULTIMATE.start_main_~ret5~0#1_21| Int)) (and (<= |v_ULTIMATE.start_main_~ret5~0#1_21| 2147483647) (or (and (exists ((|v_ULTIMATE.start_main_~i~2#1_31| Int)) (and (<= 1 |#StackHeapBarrier|) (<= ~N~0 2147483647) (<= |v_ULTIMATE.start_main_~ret2~0#1_21| 2147483647) (<= |v_ULTIMATE.start_main_~ret~1#1_21| 2147483647) (<= ~N~0 (+ |v_ULTIMATE.start_main_~i~2#1_31| 1)) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (<= 2 ~N~0) (<= 0 (+ |v_ULTIMATE.start_main_~ret~1#1_21| 2147483648)) (<= 0 (+ |v_ULTIMATE.start_main_~ret2~0#1_21| 2147483648)))) (exists ((v_mapsum_~ret~0_57 Int)) (= (+ |v_ULTIMATE.start_main_~ret5~0#1_21| 4294967296) (mod v_mapsum_~ret~0_57 4294967296))) (exists ((|v_#memory_int_48| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_48| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_48| |ULTIMATE.start_main_~#x~0#1.base|) (+ (* ~N~0 4) (- 4)) (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) (+ (* ~N~0 4) (- 4)))))))) (and (exists ((v_mapsum_~ret~0_57 Int)) (= (mod v_mapsum_~ret~0_57 4294967296) |v_ULTIMATE.start_main_~ret5~0#1_21|)) (exists ((|v_ULTIMATE.start_main_~i~2#1_31| Int)) (and (<= 1 |#StackHeapBarrier|) (<= ~N~0 2147483647) (<= |v_ULTIMATE.start_main_~ret2~0#1_21| 2147483647) (<= |v_ULTIMATE.start_main_~ret~1#1_21| 2147483647) (<= ~N~0 (+ |v_ULTIMATE.start_main_~i~2#1_31| 1)) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (<= 2 ~N~0) (<= 0 (+ |v_ULTIMATE.start_main_~ret~1#1_21| 2147483648)) (<= 0 (+ |v_ULTIMATE.start_main_~ret2~0#1_21| 2147483648)))) (exists ((|v_#memory_int_48| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_48| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_48| |ULTIMATE.start_main_~#x~0#1.base|) (+ (* ~N~0 4) (- 4)) (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) (+ (* ~N~0 4) (- 4))))))))) (or (not (= |v_ULTIMATE.start_main_~ret2~0#1_21| |v_ULTIMATE.start_main_~ret~1#1_21|)) (not (= |v_ULTIMATE.start_main_~ret~1#1_21| |v_ULTIMATE.start_main_~ret5~0#1_21|))) (<= 0 (+ |v_ULTIMATE.start_main_~ret5~0#1_21| 2147483648)))))' at error location [2024-11-09 05:10:27,611 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:10:27,611 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:10:27,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 6] total 10 [2024-11-09 05:10:27,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767880538] [2024-11-09 05:10:27,612 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:10:27,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 05:10:27,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:10:27,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 05:10:27,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=627, Unknown=4, NotChecked=0, Total=756 [2024-11-09 05:10:27,614 INFO L87 Difference]: Start difference. First operand 29 states and 35 transitions. Second operand has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-09 05:10:27,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:10:27,775 INFO L93 Difference]: Finished difference Result 51 states and 66 transitions. [2024-11-09 05:10:27,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:10:27,776 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 38 [2024-11-09 05:10:27,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:10:27,777 INFO L225 Difference]: With dead ends: 51 [2024-11-09 05:10:27,777 INFO L226 Difference]: Without dead ends: 31 [2024-11-09 05:10:27,778 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 88 SyntacticMatches, 4 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 307 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=141, Invalid=725, Unknown=4, NotChecked=0, Total=870 [2024-11-09 05:10:27,779 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 6 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:10:27,779 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 58 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:10:27,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-11-09 05:10:27,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2024-11-09 05:10:27,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 25 states have (on average 1.16) internal successors, (29), 25 states have internal predecessors, (29), 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 05:10:27,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2024-11-09 05:10:27,787 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 35 transitions. Word has length 38 [2024-11-09 05:10:27,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:10:27,787 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 35 transitions. [2024-11-09 05:10:27,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-09 05:10:27,788 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2024-11-09 05:10:27,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-09 05:10:27,789 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:10:27,789 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:10:27,810 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4272fe74-df1f-4282-9e77-579d05e5bb96/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 05:10:27,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4272fe74-df1f-4282-9e77-579d05e5bb96/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:10:27,993 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:10:27,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:10:27,993 INFO L85 PathProgramCache]: Analyzing trace with hash 737148681, now seen corresponding path program 3 times [2024-11-09 05:10:27,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:10:27,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868798926] [2024-11-09 05:10:27,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:10:27,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:10:28,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:10:35,700 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 3 proven. 54 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 05:10:35,701 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:10:35,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868798926] [2024-11-09 05:10:35,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868798926] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:10:35,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1549641470] [2024-11-09 05:10:35,701 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 05:10:35,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:10:35,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4272fe74-df1f-4282-9e77-579d05e5bb96/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:10:35,705 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4272fe74-df1f-4282-9e77-579d05e5bb96/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:10:35,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4272fe74-df1f-4282-9e77-579d05e5bb96/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 05:10:36,129 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 05:10:36,130 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:10:36,132 WARN L253 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 118 conjuncts are in the unsatisfiable core [2024-11-09 05:10:36,141 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:10:36,242 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-09 05:10:36,347 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 16 [2024-11-09 05:10:37,965 INFO L349 Elim1Store]: treesize reduction 24, result has 61.9 percent of original size [2024-11-09 05:10:37,966 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 156 treesize of output 122 [2024-11-09 05:10:39,659 INFO L349 Elim1Store]: treesize reduction 20, result has 50.0 percent of original size [2024-11-09 05:10:39,659 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 157 treesize of output 114 [2024-11-09 05:10:40,067 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 73 [2024-11-09 05:10:41,136 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 05:10:41,136 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 204 treesize of output 124 [2024-11-09 05:10:41,995 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 4 proven. 57 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 05:10:41,996 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:10:51,894 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 203 treesize of output 183 [2024-11-09 05:10:51,926 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 05:10:51,927 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 509 treesize of output 461 [2024-11-09 05:10:52,191 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 7 proven. 55 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 05:10:52,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1549641470] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:10:52,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [678695897] [2024-11-09 05:10:52,193 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2024-11-09 05:10:52,194 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:10:52,194 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:10:52,194 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:10:52,194 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:10:52,770 INFO L197 IcfgInterpreter]: Interpreting procedure mapsum with input of size 3 for LOIs [2024-11-09 05:10:52,830 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:11:10,313 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1560#(and (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (exists ((|v_ULTIMATE.start_main_~ret2~0#1_25| Int) (|v_ULTIMATE.start_main_~ret~1#1_25| Int) (|v_ULTIMATE.start_main_~ret5~0#1_25| Int)) (and (<= |v_ULTIMATE.start_main_~ret5~0#1_25| 2147483647) (or (not (= |v_ULTIMATE.start_main_~ret~1#1_25| |v_ULTIMATE.start_main_~ret5~0#1_25|)) (not (= |v_ULTIMATE.start_main_~ret2~0#1_25| |v_ULTIMATE.start_main_~ret~1#1_25|))) (<= 0 (+ |v_ULTIMATE.start_main_~ret5~0#1_25| 2147483648)) (or (and (exists ((|v_#memory_int_73| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_73| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_73| |ULTIMATE.start_main_~#x~0#1.base|) (+ (* ~N~0 4) (- 4)) (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) (+ (* ~N~0 4) (- 4))))))) (exists ((v_mapsum_~ret~0_101 Int)) (= (mod v_mapsum_~ret~0_101 4294967296) |v_ULTIMATE.start_main_~ret5~0#1_25|)) (exists ((|v_ULTIMATE.start_main_~i~2#1_38| Int)) (and (<= 0 (+ |v_ULTIMATE.start_main_~ret2~0#1_25| 2147483648)) (<= 1 |#StackHeapBarrier|) (<= ~N~0 2147483647) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (<= |v_ULTIMATE.start_main_~ret~1#1_25| 2147483647) (<= 2 ~N~0) (<= |v_ULTIMATE.start_main_~ret2~0#1_25| 2147483647) (<= 0 (+ |v_ULTIMATE.start_main_~ret~1#1_25| 2147483648)) (<= ~N~0 (+ |v_ULTIMATE.start_main_~i~2#1_38| 1))))) (and (exists ((v_mapsum_~ret~0_101 Int)) (= (mod v_mapsum_~ret~0_101 4294967296) (+ |v_ULTIMATE.start_main_~ret5~0#1_25| 4294967296))) (exists ((|v_#memory_int_73| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_73| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_73| |ULTIMATE.start_main_~#x~0#1.base|) (+ (* ~N~0 4) (- 4)) (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) (+ (* ~N~0 4) (- 4))))))) (exists ((|v_ULTIMATE.start_main_~i~2#1_38| Int)) (and (<= 0 (+ |v_ULTIMATE.start_main_~ret2~0#1_25| 2147483648)) (<= 1 |#StackHeapBarrier|) (<= ~N~0 2147483647) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (<= |v_ULTIMATE.start_main_~ret~1#1_25| 2147483647) (<= 2 ~N~0) (<= |v_ULTIMATE.start_main_~ret2~0#1_25| 2147483647) (<= 0 (+ |v_ULTIMATE.start_main_~ret~1#1_25| 2147483648)) (<= ~N~0 (+ |v_ULTIMATE.start_main_~i~2#1_38| 1)))))))))' at error location [2024-11-09 05:11:10,313 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:11:10,313 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:11:10,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 27, 27] total 75 [2024-11-09 05:11:10,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301268615] [2024-11-09 05:11:10,314 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:11:10,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2024-11-09 05:11:10,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:11:10,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2024-11-09 05:11:10,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=451, Invalid=8244, Unknown=47, NotChecked=0, Total=8742 [2024-11-09 05:11:10,321 INFO L87 Difference]: Start difference. First operand 30 states and 35 transitions. Second operand has 75 states, 61 states have (on average 1.6885245901639345) internal successors, (103), 63 states have internal predecessors, (103), 9 states have call successors, (9), 4 states have call predecessors, (9), 8 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-09 05:11:12,563 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 [0] [2024-11-09 05:11:17,084 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 05:11:23,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 05:11:25,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 05:11:29,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 05:11:31,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 05:11:33,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 05:11:35,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 05:11:37,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 05:11:42,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 05:11:44,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 05:11:46,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 05:11:49,190 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 05:11:51,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 05:11:53,202 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 05:11:55,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 05:11:57,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 05:12:00,056 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 05:12:02,064 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 05:12:04,119 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 [0] [2024-11-09 05:12:04,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:12:04,199 INFO L93 Difference]: Finished difference Result 104 states and 126 transitions. [2024-11-09 05:12:04,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-09 05:12:04,200 INFO L78 Accepts]: Start accepts. Automaton has has 75 states, 61 states have (on average 1.6885245901639345) internal successors, (103), 63 states have internal predecessors, (103), 9 states have call successors, (9), 4 states have call predecessors, (9), 8 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Word has length 44 [2024-11-09 05:12:04,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:12:04,203 INFO L225 Difference]: With dead ends: 104 [2024-11-09 05:12:04,203 INFO L226 Difference]: Without dead ends: 100 [2024-11-09 05:12:04,206 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 67 SyntacticMatches, 1 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4058 ImplicationChecksByTransitivity, 41.6s TimeCoverageRelationStatistics Valid=686, Invalid=11695, Unknown=51, NotChecked=0, Total=12432 [2024-11-09 05:12:04,208 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 102 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 1607 mSolverCounterSat, 58 mSolverCounterUnsat, 20 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 1685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1607 IncrementalHoareTripleChecker+Invalid, 20 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:12:04,208 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 368 Invalid, 1685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1607 Invalid, 20 Unknown, 0 Unchecked, 42.7s Time] [2024-11-09 05:12:04,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-11-09 05:12:04,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 69. [2024-11-09 05:12:04,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 57 states have (on average 1.2105263157894737) internal successors, (69), 59 states have internal predecessors, (69), 7 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (10), 6 states have call predecessors, (10), 7 states have call successors, (10) [2024-11-09 05:12:04,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 86 transitions. [2024-11-09 05:12:04,241 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 86 transitions. Word has length 44 [2024-11-09 05:12:04,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:12:04,242 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 86 transitions. [2024-11-09 05:12:04,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 75 states, 61 states have (on average 1.6885245901639345) internal successors, (103), 63 states have internal predecessors, (103), 9 states have call successors, (9), 4 states have call predecessors, (9), 8 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-09 05:12:04,242 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 86 transitions. [2024-11-09 05:12:04,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-09 05:12:04,244 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:12:04,244 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:12:04,266 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4272fe74-df1f-4282-9e77-579d05e5bb96/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-09 05:12:04,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4272fe74-df1f-4282-9e77-579d05e5bb96/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-09 05:12:04,445 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:12:04,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:12:04,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1733738034, now seen corresponding path program 4 times [2024-11-09 05:12:04,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:12:04,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803263760] [2024-11-09 05:12:04,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:12:04,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:12:04,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:12:04,625 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 1 proven. 42 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-09 05:12:04,625 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:12:04,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803263760] [2024-11-09 05:12:04,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803263760] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:12:04,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [727366500] [2024-11-09 05:12:04,626 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 05:12:04,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:12:04,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4272fe74-df1f-4282-9e77-579d05e5bb96/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:12:04,628 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4272fe74-df1f-4282-9e77-579d05e5bb96/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:12:04,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4272fe74-df1f-4282-9e77-579d05e5bb96/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 05:12:04,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:12:04,726 INFO L255 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 05:12:04,728 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:12:04,850 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 32 proven. 9 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-09 05:12:04,850 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:12:05,060 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 4 proven. 39 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-09 05:12:05,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [727366500] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:12:05,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1042245251] [2024-11-09 05:12:05,063 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2024-11-09 05:12:05,063 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:12:05,064 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:12:05,064 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:12:05,064 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:12:05,522 INFO L197 IcfgInterpreter]: Interpreting procedure mapsum with input of size 3 for LOIs [2024-11-09 05:12:05,552 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:12:11,476 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2151#(and (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (exists ((|v_ULTIMATE.start_main_~ret5~0#1_28| Int) (|v_ULTIMATE.start_main_~ret2~0#1_28| Int) (|v_ULTIMATE.start_main_~ret~1#1_28| Int)) (and (<= 0 (+ |v_ULTIMATE.start_main_~ret5~0#1_28| 2147483648)) (or (and (exists ((v_mapsum_~ret~0_127 Int)) (= (mod v_mapsum_~ret~0_127 4294967296) |v_ULTIMATE.start_main_~ret5~0#1_28|)) (exists ((|v_#memory_int_88| (Array Int (Array Int Int)))) (= (store |v_#memory_int_88| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_88| |ULTIMATE.start_main_~#x~0#1.base|) (+ (* ~N~0 4) (- 4)) (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) (+ (* ~N~0 4) (- 4))))) |#memory_int|)) (exists ((|v_ULTIMATE.start_main_~i~2#1_45| Int)) (and (<= |v_ULTIMATE.start_main_~ret2~0#1_28| 2147483647) (<= 1 |#StackHeapBarrier|) (<= |v_ULTIMATE.start_main_~ret~1#1_28| 2147483647) (<= ~N~0 2147483647) (<= 0 (+ |v_ULTIMATE.start_main_~ret~1#1_28| 2147483648)) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (<= 0 (+ |v_ULTIMATE.start_main_~ret2~0#1_28| 2147483648)) (<= ~N~0 (+ |v_ULTIMATE.start_main_~i~2#1_45| 1)) (<= 2 ~N~0)))) (and (exists ((v_mapsum_~ret~0_127 Int)) (= (+ |v_ULTIMATE.start_main_~ret5~0#1_28| 4294967296) (mod v_mapsum_~ret~0_127 4294967296))) (exists ((|v_#memory_int_88| (Array Int (Array Int Int)))) (= (store |v_#memory_int_88| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_88| |ULTIMATE.start_main_~#x~0#1.base|) (+ (* ~N~0 4) (- 4)) (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) (+ (* ~N~0 4) (- 4))))) |#memory_int|)) (exists ((|v_ULTIMATE.start_main_~i~2#1_45| Int)) (and (<= |v_ULTIMATE.start_main_~ret2~0#1_28| 2147483647) (<= 1 |#StackHeapBarrier|) (<= |v_ULTIMATE.start_main_~ret~1#1_28| 2147483647) (<= ~N~0 2147483647) (<= 0 (+ |v_ULTIMATE.start_main_~ret~1#1_28| 2147483648)) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (<= 0 (+ |v_ULTIMATE.start_main_~ret2~0#1_28| 2147483648)) (<= ~N~0 (+ |v_ULTIMATE.start_main_~i~2#1_45| 1)) (<= 2 ~N~0))))) (<= |v_ULTIMATE.start_main_~ret5~0#1_28| 2147483647) (or (not (= |v_ULTIMATE.start_main_~ret2~0#1_28| |v_ULTIMATE.start_main_~ret~1#1_28|)) (not (= |v_ULTIMATE.start_main_~ret~1#1_28| |v_ULTIMATE.start_main_~ret5~0#1_28|))))))' at error location [2024-11-09 05:12:11,477 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:12:11,477 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:12:11,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 10] total 17 [2024-11-09 05:12:11,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360193205] [2024-11-09 05:12:11,477 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:12:11,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-09 05:12:11,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:12:11,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-09 05:12:11,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=1089, Unknown=20, NotChecked=0, Total=1260 [2024-11-09 05:12:11,481 INFO L87 Difference]: Start difference. First operand 69 states and 86 transitions. Second operand has 17 states, 17 states have (on average 3.0) internal successors, (51), 17 states have internal predecessors, (51), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 05:12:11,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:12:11,863 INFO L93 Difference]: Finished difference Result 164 states and 204 transitions. [2024-11-09 05:12:11,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-09 05:12:11,863 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.0) internal successors, (51), 17 states have internal predecessors, (51), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) Word has length 46 [2024-11-09 05:12:11,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:12:11,866 INFO L225 Difference]: With dead ends: 164 [2024-11-09 05:12:11,869 INFO L226 Difference]: Without dead ends: 141 [2024-11-09 05:12:11,870 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 107 SyntacticMatches, 5 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 597 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=204, Invalid=1498, Unknown=20, NotChecked=0, Total=1722 [2024-11-09 05:12:11,871 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 57 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:12:11,871 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 139 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:12:11,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2024-11-09 05:12:11,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 113. [2024-11-09 05:12:11,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 95 states have (on average 1.2210526315789474) internal successors, (116), 98 states have internal predecessors, (116), 10 states have call successors, (10), 5 states have call predecessors, (10), 7 states have return successors, (17), 9 states have call predecessors, (17), 10 states have call successors, (17) [2024-11-09 05:12:11,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 143 transitions. [2024-11-09 05:12:11,919 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 143 transitions. Word has length 46 [2024-11-09 05:12:11,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:12:11,920 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 143 transitions. [2024-11-09 05:12:11,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.0) internal successors, (51), 17 states have internal predecessors, (51), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 05:12:11,920 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 143 transitions. [2024-11-09 05:12:11,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-09 05:12:11,922 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:12:11,922 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:12:11,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4272fe74-df1f-4282-9e77-579d05e5bb96/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-09 05:12:12,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4272fe74-df1f-4282-9e77-579d05e5bb96/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:12:12,126 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:12:12,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:12:12,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1793833512, now seen corresponding path program 5 times [2024-11-09 05:12:12,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:12:12,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960154615] [2024-11-09 05:12:12,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:12:12,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:12:12,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:12:12,334 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 9 proven. 80 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-09 05:12:12,334 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:12:12,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960154615] [2024-11-09 05:12:12,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960154615] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:12:12,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [720218049] [2024-11-09 05:12:12,335 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:12:12,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:12:12,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4272fe74-df1f-4282-9e77-579d05e5bb96/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:12:12,337 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4272fe74-df1f-4282-9e77-579d05e5bb96/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:12:12,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4272fe74-df1f-4282-9e77-579d05e5bb96/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 05:12:12,465 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-09 05:12:12,465 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:12:12,467 INFO L255 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 05:12:12,469 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:12:12,588 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 47 proven. 4 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-11-09 05:12:12,588 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:12:12,797 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 19 proven. 64 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-09 05:12:12,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [720218049] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:12:12,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [155283971] [2024-11-09 05:12:12,799 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2024-11-09 05:12:12,799 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:12:12,800 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:12:12,800 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:12:12,800 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:12:13,237 INFO L197 IcfgInterpreter]: Interpreting procedure mapsum with input of size 3 for LOIs [2024-11-09 05:12:13,265 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:12:21,193 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2906#(and (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (exists ((|v_ULTIMATE.start_main_~ret~1#1_31| Int) (|v_ULTIMATE.start_main_~ret5~0#1_31| Int) (|v_ULTIMATE.start_main_~ret2~0#1_31| Int)) (and (<= 0 (+ |v_ULTIMATE.start_main_~ret5~0#1_31| 2147483648)) (or (not (= |v_ULTIMATE.start_main_~ret~1#1_31| |v_ULTIMATE.start_main_~ret5~0#1_31|)) (not (= |v_ULTIMATE.start_main_~ret2~0#1_31| |v_ULTIMATE.start_main_~ret~1#1_31|))) (<= |v_ULTIMATE.start_main_~ret5~0#1_31| 2147483647) (or (and (exists ((|v_#memory_int_102| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_102| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_102| |ULTIMATE.start_main_~#x~0#1.base|) (+ (* ~N~0 4) (- 4)) (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) (+ (* ~N~0 4) (- 4))))))) (exists ((|v_ULTIMATE.start_main_~i~2#1_52| Int)) (and (<= ~N~0 (+ |v_ULTIMATE.start_main_~i~2#1_52| 1)) (<= |v_ULTIMATE.start_main_~ret2~0#1_31| 2147483647) (<= 1 |#StackHeapBarrier|) (<= ~N~0 2147483647) (<= 0 (+ |v_ULTIMATE.start_main_~ret2~0#1_31| 2147483648)) (<= |v_ULTIMATE.start_main_~ret~1#1_31| 2147483647) (<= 0 (+ |v_ULTIMATE.start_main_~ret~1#1_31| 2147483648)) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (<= 2 ~N~0))) (exists ((v_mapsum_~ret~0_159 Int)) (= (mod v_mapsum_~ret~0_159 4294967296) |v_ULTIMATE.start_main_~ret5~0#1_31|))) (and (exists ((v_mapsum_~ret~0_159 Int)) (= (mod v_mapsum_~ret~0_159 4294967296) (+ |v_ULTIMATE.start_main_~ret5~0#1_31| 4294967296))) (exists ((|v_#memory_int_102| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_102| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_102| |ULTIMATE.start_main_~#x~0#1.base|) (+ (* ~N~0 4) (- 4)) (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) (+ (* ~N~0 4) (- 4))))))) (exists ((|v_ULTIMATE.start_main_~i~2#1_52| Int)) (and (<= ~N~0 (+ |v_ULTIMATE.start_main_~i~2#1_52| 1)) (<= |v_ULTIMATE.start_main_~ret2~0#1_31| 2147483647) (<= 1 |#StackHeapBarrier|) (<= ~N~0 2147483647) (<= 0 (+ |v_ULTIMATE.start_main_~ret2~0#1_31| 2147483648)) (<= |v_ULTIMATE.start_main_~ret~1#1_31| 2147483647) (<= 0 (+ |v_ULTIMATE.start_main_~ret~1#1_31| 2147483648)) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (<= 2 ~N~0))))))))' at error location [2024-11-09 05:12:21,193 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:12:21,193 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:12:21,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 10] total 20 [2024-11-09 05:12:21,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957699086] [2024-11-09 05:12:21,194 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:12:21,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-09 05:12:21,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:12:21,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-09 05:12:21,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=1288, Unknown=28, NotChecked=0, Total=1482 [2024-11-09 05:12:21,196 INFO L87 Difference]: Start difference. First operand 113 states and 143 transitions. Second operand has 20 states, 20 states have (on average 2.95) internal successors, (59), 20 states have internal predecessors, (59), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-09 05:12:21,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:12:21,727 INFO L93 Difference]: Finished difference Result 173 states and 216 transitions. [2024-11-09 05:12:21,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-09 05:12:21,728 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.95) internal successors, (59), 20 states have internal predecessors, (59), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) Word has length 50 [2024-11-09 05:12:21,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:12:21,729 INFO L225 Difference]: With dead ends: 173 [2024-11-09 05:12:21,731 INFO L226 Difference]: Without dead ends: 79 [2024-11-09 05:12:21,733 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 119 SyntacticMatches, 4 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 723 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=282, Invalid=2140, Unknown=28, NotChecked=0, Total=2450 [2024-11-09 05:12:21,735 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 61 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:12:21,735 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 178 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 05:12:21,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-11-09 05:12:21,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 44. [2024-11-09 05:12:21,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 38 states have (on average 1.131578947368421) internal successors, (43), 38 states have internal predecessors, (43), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 05:12:21,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 49 transitions. [2024-11-09 05:12:21,764 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 49 transitions. Word has length 50 [2024-11-09 05:12:21,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:12:21,764 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 49 transitions. [2024-11-09 05:12:21,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.95) internal successors, (59), 20 states have internal predecessors, (59), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-09 05:12:21,765 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions. [2024-11-09 05:12:21,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-09 05:12:21,765 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:12:21,766 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:12:21,784 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4272fe74-df1f-4282-9e77-579d05e5bb96/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-09 05:12:21,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4272fe74-df1f-4282-9e77-579d05e5bb96/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:12:21,967 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:12:21,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:12:21,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1629758685, now seen corresponding path program 6 times [2024-11-09 05:12:21,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:12:21,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891008462] [2024-11-09 05:12:21,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:12:21,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:12:21,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:12:22,128 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-11-09 05:12:22,128 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:12:22,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891008462] [2024-11-09 05:12:22,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891008462] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:12:22,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2072212558] [2024-11-09 05:12:22,129 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 05:12:22,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:12:22,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4272fe74-df1f-4282-9e77-579d05e5bb96/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:12:22,132 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4272fe74-df1f-4282-9e77-579d05e5bb96/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:12:22,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4272fe74-df1f-4282-9e77-579d05e5bb96/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 05:12:22,243 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 05:12:22,243 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:12:22,245 INFO L255 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 05:12:22,247 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:12:22,379 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 61 proven. 24 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-09 05:12:22,379 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:12:22,536 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 4 proven. 60 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-11-09 05:12:22,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2072212558] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:12:22,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [384168411] [2024-11-09 05:12:22,539 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2024-11-09 05:12:22,539 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:12:22,539 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:12:22,539 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:12:22,539 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:12:23,052 INFO L197 IcfgInterpreter]: Interpreting procedure mapsum with input of size 3 for LOIs [2024-11-09 05:12:23,071 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:12:26,632 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3589#(and (exists ((|v_ULTIMATE.start_main_~ret~1#1_33| Int) (|v_ULTIMATE.start_main_~ret5~0#1_33| Int) (|v_ULTIMATE.start_main_~ret2~0#1_33| Int)) (and (<= |v_ULTIMATE.start_main_~ret5~0#1_33| 2147483647) (or (and (exists ((|v_#memory_int_114| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_114| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_114| |ULTIMATE.start_main_~#x~0#1.base|) (+ (* ~N~0 4) (- 4)) (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) (+ (* ~N~0 4) (- 4))))))) (exists ((|v_ULTIMATE.start_main_~i~2#1_61| Int)) (and (<= 1 |#StackHeapBarrier|) (<= 0 (+ |v_ULTIMATE.start_main_~ret~1#1_33| 2147483648)) (<= ~N~0 2147483647) (<= |v_ULTIMATE.start_main_~ret~1#1_33| 2147483647) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (<= 0 (+ |v_ULTIMATE.start_main_~ret2~0#1_33| 2147483648)) (<= |v_ULTIMATE.start_main_~ret2~0#1_33| 2147483647) (<= 2 ~N~0) (<= ~N~0 (+ |v_ULTIMATE.start_main_~i~2#1_61| 1)))) (exists ((v_mapsum_~ret~0_189 Int)) (= (+ |v_ULTIMATE.start_main_~ret5~0#1_33| 4294967296) (mod v_mapsum_~ret~0_189 4294967296)))) (and (exists ((|v_#memory_int_114| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_114| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_114| |ULTIMATE.start_main_~#x~0#1.base|) (+ (* ~N~0 4) (- 4)) (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) (+ (* ~N~0 4) (- 4))))))) (exists ((v_mapsum_~ret~0_189 Int)) (= |v_ULTIMATE.start_main_~ret5~0#1_33| (mod v_mapsum_~ret~0_189 4294967296))) (exists ((|v_ULTIMATE.start_main_~i~2#1_61| Int)) (and (<= 1 |#StackHeapBarrier|) (<= 0 (+ |v_ULTIMATE.start_main_~ret~1#1_33| 2147483648)) (<= ~N~0 2147483647) (<= |v_ULTIMATE.start_main_~ret~1#1_33| 2147483647) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (<= 0 (+ |v_ULTIMATE.start_main_~ret2~0#1_33| 2147483648)) (<= |v_ULTIMATE.start_main_~ret2~0#1_33| 2147483647) (<= 2 ~N~0) (<= ~N~0 (+ |v_ULTIMATE.start_main_~i~2#1_61| 1)))))) (or (not (= |v_ULTIMATE.start_main_~ret~1#1_33| |v_ULTIMATE.start_main_~ret5~0#1_33|)) (not (= |v_ULTIMATE.start_main_~ret2~0#1_33| |v_ULTIMATE.start_main_~ret~1#1_33|))) (<= 0 (+ |v_ULTIMATE.start_main_~ret5~0#1_33| 2147483648)))) (= |ULTIMATE.start_main_~#x~0#1.offset| 0))' at error location [2024-11-09 05:12:26,632 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:12:26,632 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:12:26,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 14 [2024-11-09 05:12:26,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834344968] [2024-11-09 05:12:26,633 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:12:26,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 05:12:26,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:12:26,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 05:12:26,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=906, Unknown=26, NotChecked=0, Total=1056 [2024-11-09 05:12:26,634 INFO L87 Difference]: Start difference. First operand 44 states and 49 transitions. Second operand has 14 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 14 states have internal predecessors, (52), 3 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-09 05:12:26,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:12:26,858 INFO L93 Difference]: Finished difference Result 62 states and 69 transitions. [2024-11-09 05:12:26,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 05:12:26,858 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 14 states have internal predecessors, (52), 3 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) Word has length 52 [2024-11-09 05:12:26,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:12:26,859 INFO L225 Difference]: With dead ends: 62 [2024-11-09 05:12:26,859 INFO L226 Difference]: Without dead ends: 46 [2024-11-09 05:12:26,860 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 126 SyntacticMatches, 5 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 459 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=154, Invalid=1226, Unknown=26, NotChecked=0, Total=1406 [2024-11-09 05:12:26,860 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 14 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:12:26,861 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 95 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:12:26,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-11-09 05:12:26,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 45. [2024-11-09 05:12:26,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 39 states have (on average 1.1025641025641026) internal successors, (43), 39 states have internal predecessors, (43), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 05:12:26,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2024-11-09 05:12:26,882 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 52 [2024-11-09 05:12:26,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:12:26,883 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2024-11-09 05:12:26,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 14 states have internal predecessors, (52), 3 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-09 05:12:26,883 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2024-11-09 05:12:26,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-09 05:12:26,884 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:12:26,884 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:12:26,900 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4272fe74-df1f-4282-9e77-579d05e5bb96/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-09 05:12:27,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4272fe74-df1f-4282-9e77-579d05e5bb96/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-09 05:12:27,085 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:12:27,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:12:27,085 INFO L85 PathProgramCache]: Analyzing trace with hash 622450050, now seen corresponding path program 7 times [2024-11-09 05:12:27,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:12:27,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542203451] [2024-11-09 05:12:27,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:12:27,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:12:27,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:12:33,278 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 11 proven. 97 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 05:12:33,278 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:12:33,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542203451] [2024-11-09 05:12:33,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542203451] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:12:33,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1189074068] [2024-11-09 05:12:33,279 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 05:12:33,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:12:33,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4272fe74-df1f-4282-9e77-579d05e5bb96/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:12:33,281 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4272fe74-df1f-4282-9e77-579d05e5bb96/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:12:33,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4272fe74-df1f-4282-9e77-579d05e5bb96/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 05:12:33,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:12:33,775 WARN L253 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 121 conjuncts are in the unsatisfiable core [2024-11-09 05:12:33,780 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:12:33,827 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-09 05:12:34,379 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 05:12:34,379 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 33 [2024-11-09 05:12:34,817 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 05:12:34,818 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 36 [2024-11-09 05:12:34,979 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 05:12:34,980 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 36 [2024-11-09 05:12:35,099 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 05:12:35,099 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 33 [2024-11-09 05:12:35,525 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 05:12:35,526 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 113 treesize of output 53 [2024-11-09 05:12:37,895 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 05:12:37,895 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:12:43,282 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 248 treesize of output 218 [2024-11-09 05:12:43,322 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 05:12:43,323 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 2880 treesize of output 2108 [2024-11-09 05:12:53,320 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:13:39,918 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:13:39,930 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:13:39,943 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:13:39,950 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:13:42,247 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:13:45,794 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:13:45,814 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:13:46,044 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:13:46,055 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:13:46,062 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:13:47,971 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:13:48,265 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:13:50,581 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:13:50,588 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:13:50,867 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:14:16,426 WARN L286 SmtUtils]: Spent 6.06s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 05:14:26,550 WARN L286 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 05:14:33,985 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-11-09 05:14:34,259 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:14:34,421 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:14:42,741 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-11-09 05:14:42,756 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-11-09 05:14:42,766 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-11-09 05:14:43,009 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-11-09 05:14:45,477 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-11-09 05:14:45,734 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-11-09 05:14:45,746 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-11-09 05:14:46,102 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-11-09 05:14:46,118 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-11-09 05:14:46,127 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-11-09 05:14:47,254 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-11-09 05:14:47,264 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-11-09 05:14:49,650 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-11-09 05:14:54,018 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-11-09 05:14:56,176 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:14:56,185 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:14:56,191 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:15:05,337 WARN L286 SmtUtils]: Spent 5.30s on a formula simplification that was a NOOP. DAG size: 18 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 05:15:05,384 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:15:05,537 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:15:05,798 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:15:05,810 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:15:06,104 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:15:06,113 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:15:06,385 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:15:06,394 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:15:06,402 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:15:06,628 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:15:07,007 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:15:07,296 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-11-09 05:15:07,305 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-11-09 05:15:07,312 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-11-09 05:15:07,663 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-11-09 05:15:07,894 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-11-09 05:15:10,143 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-11-09 05:15:10,157 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-11-09 05:15:12,484 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-11-09 05:15:12,496 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-11-09 05:15:12,504 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-11-09 05:15:12,796 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-11-09 05:15:12,812 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-11-09 05:15:15,560 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-11-09 05:15:19,421 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-11-09 05:15:21,260 WARN L672 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2024-11-09 05:15:21,273 WARN L672 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2024-11-09 05:15:21,284 WARN L672 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2024-11-09 05:15:29,095 WARN L286 SmtUtils]: Spent 5.52s on a formula simplification that was a NOOP. DAG size: 18 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 05:15:31,654 WARN L672 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2024-11-09 05:15:31,664 WARN L672 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2024-11-09 05:15:31,672 WARN L672 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2024-11-09 05:15:34,174 WARN L672 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2024-11-09 05:15:36,626 WARN L672 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2024-11-09 05:15:37,110 WARN L672 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2024-11-09 05:15:37,632 WARN L672 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2024-11-09 05:15:37,640 WARN L672 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2024-11-09 05:15:37,646 WARN L672 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2024-11-09 05:15:37,883 WARN L672 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2024-11-09 05:15:38,137 WARN L672 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2024-11-09 05:15:38,504 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:15:38,516 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:15:38,525 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:15:40,827 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:15:40,836 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:15:43,059 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:15:43,068 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:15:50,002 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:15:55,482 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:15:58,369 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:15:58,378 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:15:58,505 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:15:58,512 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:15:58,744 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:15:59,949 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:15:59,956 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:15:59,963 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:16:00,098 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:16:00,227 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:16:03,160 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:16:05,748 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:16:05,764 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:16:05,772 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:16:05,937 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:16:05,944 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:16:06,138 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:16:06,364 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:16:06,378 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:16:06,613 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:16:06,625 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:16:06,635 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:16:06,644 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:16:06,969 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:16:07,800 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:16:08,080 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:16:08,485 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-11-09 05:16:08,498 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-11-09 05:16:08,512 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-11-09 05:16:08,519 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-11-09 05:16:09,113 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-11-09 05:16:09,312 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-11-09 05:16:09,329 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-11-09 05:16:09,585 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-11-09 05:16:09,593 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-11-09 05:16:09,602 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-11-09 05:16:10,174 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-11-09 05:16:10,408 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-11-09 05:16:10,712 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-11-09 05:16:10,720 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-11-09 05:16:10,940 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-11-09 05:16:15,213 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:16:15,225 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:16:15,233 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:16:15,382 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:16:15,626 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:16:15,650 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:16:15,659 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:16:15,787 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:16:15,981 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:16:15,993 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:16:16,237 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:16:16,247 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:16:16,255 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:16:16,551 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:16:16,855 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-09 05:16:34,648 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts.