./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/reducercommutativity/rangesum20.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/reducercommutativity/rangesum20.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E --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 66b03bf685aae9720ef4af0fb91907139a878375cd48373b4439b53b2302a22a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:24:31,117 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:24:31,211 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 05:24:31,218 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:24:31,218 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:24:31,267 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:24:31,268 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:24:31,268 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:24:31,270 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:24:31,271 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:24:31,272 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:24:31,272 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:24:31,273 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:24:31,273 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:24:31,273 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:24:31,274 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:24:31,274 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:24:31,274 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:24:31,274 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:24:31,275 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:24:31,275 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:24:31,275 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:24:31,276 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:24:31,276 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:24:31,277 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:24:31,277 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:24:31,277 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:24:31,277 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:24:31,277 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:24:31,277 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:24:31,278 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:24:31,278 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:24:31,278 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:24:31,278 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:24:31,278 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:24:31,279 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:24:31,280 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:24:31,280 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:24:31,280 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:24:31,280 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:24:31,280 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:24:31,280 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:24:31,280 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:24:31,281 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:24:31,281 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:24:31,281 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:24:31,281 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:24:31,281 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E 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 -> 66b03bf685aae9720ef4af0fb91907139a878375cd48373b4439b53b2302a22a [2024-11-14 05:24:31,700 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:24:31,711 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:24:31,714 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:24:31,716 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:24:31,717 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:24:31,718 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/reducercommutativity/rangesum20.i Unable to find full path for "g++" [2024-11-14 05:24:34,184 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:24:34,607 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:24:34,611 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/sv-benchmarks/c/reducercommutativity/rangesum20.i [2024-11-14 05:24:34,629 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/data/725d4d08d/8319a400ed6748ac8b6f7d671b513dd9/FLAG69154c3c9 [2024-11-14 05:24:34,780 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/data/725d4d08d/8319a400ed6748ac8b6f7d671b513dd9 [2024-11-14 05:24:34,783 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:24:34,785 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:24:34,787 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:24:34,787 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:24:34,793 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:24:34,794 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:24:34" (1/1) ... [2024-11-14 05:24:34,796 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60be5feb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:34, skipping insertion in model container [2024-11-14 05:24:34,796 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:24:34" (1/1) ... [2024-11-14 05:24:34,821 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:24:35,054 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_403b4d54-79b5-42ac-b496-e1ffd2906e49/sv-benchmarks/c/reducercommutativity/rangesum20.i[1465,1478] [2024-11-14 05:24:35,059 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:24:35,069 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:24:35,096 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_403b4d54-79b5-42ac-b496-e1ffd2906e49/sv-benchmarks/c/reducercommutativity/rangesum20.i[1465,1478] [2024-11-14 05:24:35,097 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:24:35,116 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:24:35,116 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:35 WrapperNode [2024-11-14 05:24:35,117 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:24:35,118 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:24:35,118 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:24:35,119 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:24:35,128 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:35" (1/1) ... [2024-11-14 05:24:35,136 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:35" (1/1) ... [2024-11-14 05:24:35,158 INFO L138 Inliner]: procedures = 17, calls = 23, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 69 [2024-11-14 05:24:35,159 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:24:35,160 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:24:35,160 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:24:35,160 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:24:35,170 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:35" (1/1) ... [2024-11-14 05:24:35,170 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:35" (1/1) ... [2024-11-14 05:24:35,173 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:35" (1/1) ... [2024-11-14 05:24:35,173 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:35" (1/1) ... [2024-11-14 05:24:35,180 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:35" (1/1) ... [2024-11-14 05:24:35,185 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:35" (1/1) ... [2024-11-14 05:24:35,186 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:35" (1/1) ... [2024-11-14 05:24:35,187 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:35" (1/1) ... [2024-11-14 05:24:35,190 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:24:35,195 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:24:35,195 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:24:35,195 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:24:35,196 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:35" (1/1) ... [2024-11-14 05:24:35,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:24:35,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:24:35,246 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:24:35,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:24:35,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:24:35,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 05:24:35,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 05:24:35,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 05:24:35,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:24:35,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:24:35,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 05:24:35,294 INFO L130 BoogieDeclarations]: Found specification of procedure rangesum [2024-11-14 05:24:35,295 INFO L138 BoogieDeclarations]: Found implementation of procedure rangesum [2024-11-14 05:24:35,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 05:24:35,420 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:24:35,424 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:24:35,743 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-14 05:24:35,743 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:24:35,859 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:24:35,859 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-14 05:24:35,859 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:24:35 BoogieIcfgContainer [2024-11-14 05:24:35,860 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:24:35,863 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:24:35,863 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:24:35,869 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:24:35,870 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:24:34" (1/3) ... [2024-11-14 05:24:35,871 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4788369a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:24:35, skipping insertion in model container [2024-11-14 05:24:35,871 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:35" (2/3) ... [2024-11-14 05:24:35,871 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4788369a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:24:35, skipping insertion in model container [2024-11-14 05:24:35,871 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:24:35" (3/3) ... [2024-11-14 05:24:35,873 INFO L112 eAbstractionObserver]: Analyzing ICFG rangesum20.i [2024-11-14 05:24:35,895 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:24:35,897 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG rangesum20.i that has 2 procedures, 17 locations, 1 initial locations, 3 loop locations, and 1 error locations. [2024-11-14 05:24:35,981 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:24:36,001 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;@38fa0503, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:24:36,001 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 05:24:36,006 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 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) [2024-11-14 05:24:36,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-14 05:24:36,017 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:24:36,018 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:24:36,018 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:24:36,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:24:36,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1044973024, now seen corresponding path program 1 times [2024-11-14 05:24:36,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:24:36,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199154987] [2024-11-14 05:24:36,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:36,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:24:36,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:36,608 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-14 05:24:36,609 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:24:36,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199154987] [2024-11-14 05:24:36,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199154987] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:24:36,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:24:36,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:24:36,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584142710] [2024-11-14 05:24:36,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:24:36,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:24:36,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:24:36,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:24:36,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:24:36,648 INFO L87 Difference]: Start difference. First operand has 17 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 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 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2024-11-14 05:24:36,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:24:36,736 INFO L93 Difference]: Finished difference Result 33 states and 43 transitions. [2024-11-14 05:24:36,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:24:36,741 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 20 [2024-11-14 05:24:36,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:24:36,749 INFO L225 Difference]: With dead ends: 33 [2024-11-14 05:24:36,749 INFO L226 Difference]: Without dead ends: 16 [2024-11-14 05:24:36,754 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 [2024-11-14 05:24:36,761 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:24:36,762 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:24:36,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2024-11-14 05:24:36,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2024-11-14 05:24:36,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 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) [2024-11-14 05:24:36,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2024-11-14 05:24:36,805 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 20 transitions. Word has length 20 [2024-11-14 05:24:36,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:24:36,805 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 20 transitions. [2024-11-14 05:24:36,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2024-11-14 05:24:36,806 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2024-11-14 05:24:36,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-14 05:24:36,808 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:24:36,808 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:24:36,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 05:24:36,809 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:24:36,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:24:36,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1095982348, now seen corresponding path program 1 times [2024-11-14 05:24:36,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:24:36,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057164210] [2024-11-14 05:24:36,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:36,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:24:36,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:37,089 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-14 05:24:37,089 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:24:37,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057164210] [2024-11-14 05:24:37,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057164210] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:24:37,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1191029538] [2024-11-14 05:24:37,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:37,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:24:37,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:24:37,096 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:24:37,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 05:24:37,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:37,328 INFO L255 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-14 05:24:37,337 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:24:37,372 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 05:24:37,375 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:24:37,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1191029538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:24:37,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:24:37,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-14 05:24:37,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903424204] [2024-11-14 05:24:37,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:24:37,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:24:37,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:24:37,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:24:37,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:24:37,382 INFO L87 Difference]: Start difference. First operand 16 states and 20 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 05:24:37,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:24:37,422 INFO L93 Difference]: Finished difference Result 29 states and 39 transitions. [2024-11-14 05:24:37,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:24:37,423 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 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 21 [2024-11-14 05:24:37,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:24:37,424 INFO L225 Difference]: With dead ends: 29 [2024-11-14 05:24:37,424 INFO L226 Difference]: Without dead ends: 17 [2024-11-14 05:24:37,425 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:24:37,426 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:24:37,427 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:24:37,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2024-11-14 05:24:37,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2024-11-14 05:24:37,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 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) [2024-11-14 05:24:37,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2024-11-14 05:24:37,436 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 21 [2024-11-14 05:24:37,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:24:37,436 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2024-11-14 05:24:37,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 05:24:37,436 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2024-11-14 05:24:37,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-14 05:24:37,438 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:24:37,439 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:24:37,465 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 05:24:37,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:24:37,643 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:24:37,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:24:37,644 INFO L85 PathProgramCache]: Analyzing trace with hash 254755254, now seen corresponding path program 1 times [2024-11-14 05:24:37,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:24:37,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795067702] [2024-11-14 05:24:37,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:37,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:24:37,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:37,937 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-14 05:24:37,937 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:24:37,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795067702] [2024-11-14 05:24:37,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795067702] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:24:37,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [564426940] [2024-11-14 05:24:37,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:37,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:24:37,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:24:37,940 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:24:37,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 05:24:38,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:38,069 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-14 05:24:38,071 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:24:38,100 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-14 05:24:38,104 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:24:38,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [564426940] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:24:38,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:24:38,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-14 05:24:38,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296897569] [2024-11-14 05:24:38,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:24:38,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:24:38,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:24:38,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:24:38,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:24:38,106 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 05:24:38,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:24:38,148 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2024-11-14 05:24:38,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:24:38,149 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 24 [2024-11-14 05:24:38,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:24:38,151 INFO L225 Difference]: With dead ends: 27 [2024-11-14 05:24:38,152 INFO L226 Difference]: Without dead ends: 18 [2024-11-14 05:24:38,153 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:24:38,154 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:24:38,155 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 25 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:24:38,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2024-11-14 05:24:38,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2024-11-14 05:24:38,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 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) [2024-11-14 05:24:38,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2024-11-14 05:24:38,167 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 24 [2024-11-14 05:24:38,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:24:38,169 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2024-11-14 05:24:38,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 05:24:38,170 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2024-11-14 05:24:38,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-14 05:24:38,171 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:24:38,171 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:24:38,190 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-14 05:24:38,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:24:38,372 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:24:38,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:24:38,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1151857616, now seen corresponding path program 1 times [2024-11-14 05:24:38,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:24:38,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134981746] [2024-11-14 05:24:38,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:38,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:24:38,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:38,564 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-14 05:24:38,565 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:24:38,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134981746] [2024-11-14 05:24:38,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134981746] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:24:38,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1965322664] [2024-11-14 05:24:38,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:38,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:24:38,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:24:38,571 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:24:38,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 05:24:38,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:38,734 INFO L255 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 05:24:38,736 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:24:38,791 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-14 05:24:38,791 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:24:38,867 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-14 05:24:38,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1965322664] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:24:38,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [821123625] [2024-11-14 05:24:38,903 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2024-11-14 05:24:38,907 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:24:38,913 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:24:38,919 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:24:38,920 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:24:45,169 INFO L197 IcfgInterpreter]: Interpreting procedure rangesum with input of size 10 for LOIs [2024-11-14 05:24:46,120 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:25:29,396 WARN L286 SmtUtils]: Spent 39.22s on a formula simplification. DAG size of input: 117 DAG size of output: 59 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:25:46,265 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '533#(and (<= 1 |#StackHeapBarrier|) (exists ((v_rangesum_~cnt~0_38 Int) (|v_ULTIMATE.start_main_~ret5~0#1_17| Int) (v_rangesum_~ret~0_38 Int) (|v_ULTIMATE.start_main_~ret2~0#1_17| Int) (|v_ULTIMATE.start_main_~ret~1#1_17| Int)) (and (or (and (= v_rangesum_~cnt~0_38 0) (= |v_ULTIMATE.start_main_~ret5~0#1_17| 0)) (and (or (and (or (= (mod v_rangesum_~ret~0_38 v_rangesum_~cnt~0_38) 0) (< 0 (+ v_rangesum_~ret~0_38 1))) (= (+ |v_ULTIMATE.start_main_~ret5~0#1_17| 4294967296) (mod (div v_rangesum_~ret~0_38 v_rangesum_~cnt~0_38) 4294967296))) (and (= (mod (+ (div v_rangesum_~ret~0_38 v_rangesum_~cnt~0_38) 1) 4294967296) |v_ULTIMATE.start_main_~ret5~0#1_17|) (not (= (mod v_rangesum_~ret~0_38 v_rangesum_~cnt~0_38) 0)) (<= (+ v_rangesum_~ret~0_38 1) 0)) (and (= (mod (+ (div v_rangesum_~ret~0_38 v_rangesum_~cnt~0_38) 1) 4294967296) (+ |v_ULTIMATE.start_main_~ret5~0#1_17| 4294967296)) (not (= (mod v_rangesum_~ret~0_38 v_rangesum_~cnt~0_38) 0)) (<= (+ v_rangesum_~ret~0_38 1) 0)) (and (= |v_ULTIMATE.start_main_~ret5~0#1_17| (mod (div v_rangesum_~ret~0_38 v_rangesum_~cnt~0_38) 4294967296)) (or (= (mod v_rangesum_~ret~0_38 v_rangesum_~cnt~0_38) 0) (< 0 (+ v_rangesum_~ret~0_38 1))))) (not (= v_rangesum_~cnt~0_38 0)))) (<= 0 (+ |v_ULTIMATE.start_main_~ret~1#1_17| 2147483648)) (<= 0 (+ |v_ULTIMATE.start_main_~ret5~0#1_17| 2147483648)) (<= |v_ULTIMATE.start_main_~ret5~0#1_17| 2147483647) (or (not (= |v_ULTIMATE.start_main_~ret~1#1_17| |v_ULTIMATE.start_main_~ret5~0#1_17|)) (not (= |v_ULTIMATE.start_main_~ret2~0#1_17| |v_ULTIMATE.start_main_~ret~1#1_17|))) (<= 0 v_rangesum_~cnt~0_38) (<= 0 (+ |v_ULTIMATE.start_main_~ret2~0#1_17| 2147483648)) (<= |v_ULTIMATE.start_main_~ret2~0#1_17| 2147483647) (<= |v_ULTIMATE.start_main_~ret~1#1_17| 2147483647))) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (exists ((|v_#memory_int_33| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_33| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_33| |ULTIMATE.start_main_~#x~0#1.base|) 76 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 76))))))' at error location [2024-11-14 05:25:46,266 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:25:46,266 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:25:46,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 4] total 7 [2024-11-14 05:25:46,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891222963] [2024-11-14 05:25:46,267 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:25:46,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 05:25:46,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:25:46,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 05:25:46,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=284, Unknown=32, NotChecked=0, Total=380 [2024-11-14 05:25:46,269 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. Second operand has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 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) [2024-11-14 05:25:46,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:25:46,313 INFO L93 Difference]: Finished difference Result 36 states and 46 transitions. [2024-11-14 05:25:46,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 05:25:46,314 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 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 25 [2024-11-14 05:25:46,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:25:46,315 INFO L225 Difference]: With dead ends: 36 [2024-11-14 05:25:46,315 INFO L226 Difference]: Without dead ends: 21 [2024-11-14 05:25:46,315 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 60.2s TimeCoverageRelationStatistics Valid=64, Invalid=284, Unknown=32, NotChecked=0, Total=380 [2024-11-14 05:25:46,316 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:25:46,317 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 39 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:25:46,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2024-11-14 05:25:46,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2024-11-14 05:25:46,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 16 states have (on average 1.1875) internal successors, (19), 16 states have internal predecessors, (19), 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) [2024-11-14 05:25:46,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2024-11-14 05:25:46,324 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 25 [2024-11-14 05:25:46,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:25:46,325 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2024-11-14 05:25:46,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 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) [2024-11-14 05:25:46,325 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2024-11-14 05:25:46,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-14 05:25:46,326 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:25:46,326 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:25:46,347 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-14 05:25:46,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:25:46,527 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:25:46,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:25:46,528 INFO L85 PathProgramCache]: Analyzing trace with hash 627098084, now seen corresponding path program 2 times [2024-11-14 05:25:46,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:25:46,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045686369] [2024-11-14 05:25:46,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:25:46,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:25:46,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:25:46,737 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-14 05:25:46,737 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:25:46,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045686369] [2024-11-14 05:25:46,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045686369] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:25:46,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [899436741] [2024-11-14 05:25:46,738 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 05:25:46,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:25:46,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:25:46,741 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:25:46,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 05:25:46,867 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-14 05:25:46,867 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:25:46,872 INFO L255 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 05:25:46,876 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:25:46,898 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-14 05:25:46,899 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:25:46,949 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-14 05:25:46,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [899436741] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:25:46,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [289134646] [2024-11-14 05:25:46,953 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2024-11-14 05:25:46,954 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:25:46,954 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:25:46,954 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:25:46,954 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:25:49,552 INFO L197 IcfgInterpreter]: Interpreting procedure rangesum with input of size 10 for LOIs [2024-11-14 05:25:49,689 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:26:03,020 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '809#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~ret2~0#1_18| Int) (|v_ULTIMATE.start_main_~ret5~0#1_19| Int) (v_rangesum_~ret~0_64 Int) (v_rangesum_~cnt~0_64 Int) (|v_ULTIMATE.start_main_~ret~1#1_18| Int)) (and (or (and (= |v_ULTIMATE.start_main_~ret5~0#1_19| 0) (= v_rangesum_~cnt~0_64 0)) (and (or (and (or (= (+ |v_ULTIMATE.start_main_~ret5~0#1_19| 4294967296) (mod (div v_rangesum_~ret~0_64 v_rangesum_~cnt~0_64) 4294967296)) (= |v_ULTIMATE.start_main_~ret5~0#1_19| (mod (div v_rangesum_~ret~0_64 v_rangesum_~cnt~0_64) 4294967296))) (or (= (mod v_rangesum_~ret~0_64 v_rangesum_~cnt~0_64) 0) (< 0 (+ v_rangesum_~ret~0_64 1)))) (and (<= (+ v_rangesum_~ret~0_64 1) 0) (or (= (mod (+ 1 (div v_rangesum_~ret~0_64 v_rangesum_~cnt~0_64)) 4294967296) |v_ULTIMATE.start_main_~ret5~0#1_19|) (= (mod (+ 1 (div v_rangesum_~ret~0_64 v_rangesum_~cnt~0_64)) 4294967296) (+ |v_ULTIMATE.start_main_~ret5~0#1_19| 4294967296))) (not (= (mod v_rangesum_~ret~0_64 v_rangesum_~cnt~0_64) 0)))) (not (= v_rangesum_~cnt~0_64 0)))) (<= 0 (+ |v_ULTIMATE.start_main_~ret5~0#1_19| 2147483648)) (<= 0 (+ |v_ULTIMATE.start_main_~ret2~0#1_18| 2147483648)) (<= |v_ULTIMATE.start_main_~ret2~0#1_18| 2147483647) (<= |v_ULTIMATE.start_main_~ret5~0#1_19| 2147483647) (<= |v_ULTIMATE.start_main_~ret~1#1_18| 2147483647) (<= 0 v_rangesum_~cnt~0_64) (<= 0 (+ |v_ULTIMATE.start_main_~ret~1#1_18| 2147483648)) (or (not (= |v_ULTIMATE.start_main_~ret~1#1_18| |v_ULTIMATE.start_main_~ret5~0#1_19|)) (not (= |v_ULTIMATE.start_main_~ret2~0#1_18| |v_ULTIMATE.start_main_~ret~1#1_18|))))) (exists ((|v_#memory_int_40| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_40| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_40| |ULTIMATE.start_main_~#x~0#1.base|) 76 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 76))))) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (= |ULTIMATE.start_main_~#x~0#1.offset| 0))' at error location [2024-11-14 05:26:03,020 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:26:03,020 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:26:03,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-14 05:26:03,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539685698] [2024-11-14 05:26:03,020 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:26:03,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 05:26:03,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:26:03,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 05:26:03,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=281, Unknown=35, NotChecked=0, Total=380 [2024-11-14 05:26:03,022 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 05:26:03,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:26:03,057 INFO L93 Difference]: Finished difference Result 38 states and 50 transitions. [2024-11-14 05:26:03,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 05:26:03,059 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 28 [2024-11-14 05:26:03,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:26:03,060 INFO L225 Difference]: With dead ends: 38 [2024-11-14 05:26:03,060 INFO L226 Difference]: Without dead ends: 24 [2024-11-14 05:26:03,060 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 13.4s TimeCoverageRelationStatistics Valid=64, Invalid=281, Unknown=35, NotChecked=0, Total=380 [2024-11-14 05:26:03,061 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:26:03,061 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:26:03,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2024-11-14 05:26:03,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2024-11-14 05:26:03,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 19 states have internal predecessors, (22), 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) [2024-11-14 05:26:03,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2024-11-14 05:26:03,072 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 28 [2024-11-14 05:26:03,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:26:03,073 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2024-11-14 05:26:03,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 05:26:03,073 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2024-11-14 05:26:03,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-14 05:26:03,075 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:26:03,076 INFO L215 NwaCegarLoop]: trace histogram [12, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:26:03,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-14 05:26:03,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:26:03,277 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:26:03,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:26:03,277 INFO L85 PathProgramCache]: Analyzing trace with hash 997500398, now seen corresponding path program 3 times [2024-11-14 05:26:03,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:26:03,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850655705] [2024-11-14 05:26:03,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:26:03,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:26:03,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:26:03,462 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2024-11-14 05:26:03,462 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:26:03,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850655705] [2024-11-14 05:26:03,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850655705] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:26:03,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [784434507] [2024-11-14 05:26:03,462 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 05:26:03,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:26:03,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:26:03,465 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:26:03,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 05:26:03,578 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 05:26:03,578 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:26:03,580 INFO L255 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 05:26:03,582 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:26:03,633 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-14 05:26:03,634 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:26:03,719 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-14 05:26:03,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [784434507] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:26:03,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [986292571] [2024-11-14 05:26:03,722 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2024-11-14 05:26:03,722 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:26:03,722 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:26:03,722 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:26:03,722 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:26:05,515 INFO L197 IcfgInterpreter]: Interpreting procedure rangesum with input of size 10 for LOIs [2024-11-14 05:26:05,782 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:26:41,157 WARN L286 SmtUtils]: Spent 34.61s on a formula simplification. DAG size of input: 113 DAG size of output: 59 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:26:57,955 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1156#(and (<= 1 |#StackHeapBarrier|) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (exists ((v_rangesum_~ret~0_97 Int) (v_rangesum_~cnt~0_97 Int) (|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_22| Int)) (and (<= 0 v_rangesum_~cnt~0_97) (<= 0 (+ |v_ULTIMATE.start_main_~ret5~0#1_22| 2147483648)) (<= |v_ULTIMATE.start_main_~ret2~0#1_21| 2147483647) (<= |v_ULTIMATE.start_main_~ret5~0#1_22| 2147483647) (<= |v_ULTIMATE.start_main_~ret~1#1_21| 2147483647) (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_22|))) (<= 0 (+ |v_ULTIMATE.start_main_~ret~1#1_21| 2147483648)) (or (and (or (and (= |v_ULTIMATE.start_main_~ret5~0#1_22| (mod (div v_rangesum_~ret~0_97 v_rangesum_~cnt~0_97) 4294967296)) (or (= (mod v_rangesum_~ret~0_97 v_rangesum_~cnt~0_97) 0) (< 0 (+ v_rangesum_~ret~0_97 1)))) (and (= (+ |v_ULTIMATE.start_main_~ret5~0#1_22| 4294967296) (mod (div v_rangesum_~ret~0_97 v_rangesum_~cnt~0_97) 4294967296)) (or (= (mod v_rangesum_~ret~0_97 v_rangesum_~cnt~0_97) 0) (< 0 (+ v_rangesum_~ret~0_97 1)))) (and (not (= (mod v_rangesum_~ret~0_97 v_rangesum_~cnt~0_97) 0)) (<= (+ v_rangesum_~ret~0_97 1) 0) (= (+ |v_ULTIMATE.start_main_~ret5~0#1_22| 4294967296) (mod (+ (div v_rangesum_~ret~0_97 v_rangesum_~cnt~0_97) 1) 4294967296))) (and (not (= (mod v_rangesum_~ret~0_97 v_rangesum_~cnt~0_97) 0)) (= |v_ULTIMATE.start_main_~ret5~0#1_22| (mod (+ (div v_rangesum_~ret~0_97 v_rangesum_~cnt~0_97) 1) 4294967296)) (<= (+ v_rangesum_~ret~0_97 1) 0))) (not (= v_rangesum_~cnt~0_97 0))) (and (= v_rangesum_~cnt~0_97 0) (= |v_ULTIMATE.start_main_~ret5~0#1_22| 0))) (<= 0 (+ |v_ULTIMATE.start_main_~ret2~0#1_21| 2147483648)))) (exists ((|v_#memory_int_54| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_54| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_54| |ULTIMATE.start_main_~#x~0#1.base|) 76 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 76))))))' at error location [2024-11-14 05:26:57,956 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:26:57,956 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:26:57,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 7] total 14 [2024-11-14 05:26:57,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584293940] [2024-11-14 05:26:57,956 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:26:57,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-14 05:26:57,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:26:57,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-14 05:26:57,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=559, Unknown=22, NotChecked=0, Total=702 [2024-11-14 05:26:57,958 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-14 05:26:58,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:26:58,021 INFO L93 Difference]: Finished difference Result 49 states and 63 transitions. [2024-11-14 05:26:58,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-14 05:26:58,022 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 37 [2024-11-14 05:26:58,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:26:58,022 INFO L225 Difference]: With dead ends: 49 [2024-11-14 05:26:58,023 INFO L226 Difference]: Without dead ends: 31 [2024-11-14 05:26:58,023 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 52.3s TimeCoverageRelationStatistics Valid=121, Invalid=559, Unknown=22, NotChecked=0, Total=702 [2024-11-14 05:26:58,024 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:26:58,024 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:26:58,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-11-14 05:26:58,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2024-11-14 05:26:58,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 26 states have (on average 1.1153846153846154) internal successors, (29), 26 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) [2024-11-14 05:26:58,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2024-11-14 05:26:58,030 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 37 [2024-11-14 05:26:58,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:26:58,030 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2024-11-14 05:26:58,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-14 05:26:58,030 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2024-11-14 05:26:58,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-14 05:26:58,031 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:26:58,032 INFO L215 NwaCegarLoop]: trace histogram [12, 10, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:26:58,054 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-14 05:26:58,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:26:58,232 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:26:58,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:26:58,233 INFO L85 PathProgramCache]: Analyzing trace with hash -723846688, now seen corresponding path program 4 times [2024-11-14 05:26:58,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:26:58,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210144619] [2024-11-14 05:26:58,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:26:58,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:26:58,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:26:58,656 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-14 05:26:58,656 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:26:58,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210144619] [2024-11-14 05:26:58,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210144619] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:26:58,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [874555684] [2024-11-14 05:26:58,657 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-14 05:26:58,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:26:58,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:26:58,660 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:26:58,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-14 05:26:58,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:26:58,785 INFO L255 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-14 05:26:58,787 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:26:58,825 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-14 05:26:58,825 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:26:59,108 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-14 05:26:59,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [874555684] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:26:59,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [676948857] [2024-11-14 05:26:59,110 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2024-11-14 05:26:59,110 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:26:59,111 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:26:59,111 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:26:59,111 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:26:59,965 INFO L197 IcfgInterpreter]: Interpreting procedure rangesum with input of size 10 for LOIs [2024-11-14 05:27:00,032 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:27:13,634 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1590#(and (exists ((v_rangesum_~ret~0_130 Int) (v_rangesum_~cnt~0_130 Int) (|v_ULTIMATE.start_main_~ret2~0#1_24| Int) (|v_ULTIMATE.start_main_~ret~1#1_24| Int) (|v_ULTIMATE.start_main_~ret5~0#1_25| Int)) (and (<= |v_ULTIMATE.start_main_~ret5~0#1_25| 2147483647) (or (and (or (and (or (= (+ |v_ULTIMATE.start_main_~ret5~0#1_25| 4294967296) (mod (div v_rangesum_~ret~0_130 v_rangesum_~cnt~0_130) 4294967296)) (= |v_ULTIMATE.start_main_~ret5~0#1_25| (mod (div v_rangesum_~ret~0_130 v_rangesum_~cnt~0_130) 4294967296))) (or (< 0 (+ v_rangesum_~ret~0_130 1)) (= (mod v_rangesum_~ret~0_130 v_rangesum_~cnt~0_130) 0))) (and (or (= (mod (+ (div v_rangesum_~ret~0_130 v_rangesum_~cnt~0_130) 1) 4294967296) (+ |v_ULTIMATE.start_main_~ret5~0#1_25| 4294967296)) (= (mod (+ (div v_rangesum_~ret~0_130 v_rangesum_~cnt~0_130) 1) 4294967296) |v_ULTIMATE.start_main_~ret5~0#1_25|)) (<= (+ v_rangesum_~ret~0_130 1) 0) (not (= (mod v_rangesum_~ret~0_130 v_rangesum_~cnt~0_130) 0)))) (not (= v_rangesum_~cnt~0_130 0))) (and (= |v_ULTIMATE.start_main_~ret5~0#1_25| 0) (= v_rangesum_~cnt~0_130 0))) (<= 0 v_rangesum_~cnt~0_130) (<= 0 (+ |v_ULTIMATE.start_main_~ret~1#1_24| 2147483648)) (<= |v_ULTIMATE.start_main_~ret~1#1_24| 2147483647) (<= 0 (+ |v_ULTIMATE.start_main_~ret2~0#1_24| 2147483648)) (<= 0 (+ |v_ULTIMATE.start_main_~ret5~0#1_25| 2147483648)) (or (not (= |v_ULTIMATE.start_main_~ret~1#1_24| |v_ULTIMATE.start_main_~ret5~0#1_25|)) (not (= |v_ULTIMATE.start_main_~ret2~0#1_24| |v_ULTIMATE.start_main_~ret~1#1_24|))) (<= |v_ULTIMATE.start_main_~ret2~0#1_24| 2147483647))) (<= 1 |#StackHeapBarrier|) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (exists ((|v_#memory_int_75| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_75| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_75| |ULTIMATE.start_main_~#x~0#1.base|) 76 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 76))))))' at error location [2024-11-14 05:27:13,634 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:27:13,635 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:27:13,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 13] total 23 [2024-11-14 05:27:13,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081887265] [2024-11-14 05:27:13,635 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:27:13,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-14 05:27:13,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:27:13,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-14 05:27:13,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=303, Invalid=931, Unknown=26, NotChecked=0, Total=1260 [2024-11-14 05:27:13,637 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand has 23 states, 23 states have (on average 1.6521739130434783) internal successors, (38), 23 states have internal predecessors, (38), 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) [2024-11-14 05:27:13,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:27:13,732 INFO L93 Difference]: Finished difference Result 60 states and 77 transitions. [2024-11-14 05:27:13,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-14 05:27:13,733 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 1.6521739130434783) internal successors, (38), 23 states have internal predecessors, (38), 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 44 [2024-11-14 05:27:13,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:27:13,735 INFO L225 Difference]: With dead ends: 60 [2024-11-14 05:27:13,735 INFO L226 Difference]: Without dead ends: 41 [2024-11-14 05:27:13,736 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 107 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 475 ImplicationChecksByTransitivity, 13.9s TimeCoverageRelationStatistics Valid=303, Invalid=931, Unknown=26, NotChecked=0, Total=1260 [2024-11-14 05:27:13,737 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:27:13,737 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 65 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:27:13,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-11-14 05:27:13,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2024-11-14 05:27:13,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 36 states have (on average 1.0833333333333333) internal successors, (39), 36 states have internal predecessors, (39), 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) [2024-11-14 05:27:13,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2024-11-14 05:27:13,750 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 44 [2024-11-14 05:27:13,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:27:13,750 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2024-11-14 05:27:13,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 1.6521739130434783) internal successors, (38), 23 states have internal predecessors, (38), 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) [2024-11-14 05:27:13,750 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2024-11-14 05:27:13,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-14 05:27:13,751 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:27:13,752 INFO L215 NwaCegarLoop]: trace histogram [20, 12, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:27:13,772 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-14 05:27:13,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:27:13,961 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:27:13,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:27:13,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1654164832, now seen corresponding path program 5 times [2024-11-14 05:27:13,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:27:13,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613430326] [2024-11-14 05:27:13,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:27:13,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:27:14,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:27:14,221 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2024-11-14 05:27:14,221 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:27:14,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613430326] [2024-11-14 05:27:14,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613430326] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:27:14,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [403239096] [2024-11-14 05:27:14,223 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 05:27:14,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:27:14,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:27:14,225 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:27:14,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-14 05:27:14,362 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-14 05:27:14,362 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:27:14,364 INFO L255 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:27:14,366 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:27:14,411 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 54 proven. 3 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2024-11-14 05:27:14,412 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:27:14,482 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2024-11-14 05:27:14,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [403239096] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:27:14,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1858666985] [2024-11-14 05:27:14,484 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2024-11-14 05:27:14,484 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:27:14,485 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:27:14,485 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:27:14,485 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:27:20,184 INFO L197 IcfgInterpreter]: Interpreting procedure rangesum with input of size 10 for LOIs [2024-11-14 05:27:20,367 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:28:00,745 WARN L286 SmtUtils]: Spent 36.50s on a formula simplification. DAG size of input: 73 DAG size of output: 62 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:28:52,498 WARN L286 SmtUtils]: Spent 39.74s on a formula simplification. DAG size of input: 205 DAG size of output: 158 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:29:09,732 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2116#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~ret2~0#1_26| Int) (v_rangesum_~cnt~0_163 Int) (v_rangesum_~ret~0_163 Int) (|v_ULTIMATE.start_main_~ret~1#1_25| Int) (|v_ULTIMATE.start_main_~ret5~0#1_27| Int)) (and (or (not (= |v_ULTIMATE.start_main_~ret~1#1_25| |v_ULTIMATE.start_main_~ret5~0#1_27|)) (not (= |v_ULTIMATE.start_main_~ret2~0#1_26| |v_ULTIMATE.start_main_~ret~1#1_25|))) (or (and (not (= v_rangesum_~cnt~0_163 0)) (or (and (or (< 0 (+ v_rangesum_~ret~0_163 1)) (= (mod v_rangesum_~ret~0_163 v_rangesum_~cnt~0_163) 0)) (= (+ |v_ULTIMATE.start_main_~ret5~0#1_27| 4294967296) (mod (div v_rangesum_~ret~0_163 v_rangesum_~cnt~0_163) 4294967296))) (and (= |v_ULTIMATE.start_main_~ret5~0#1_27| (mod (+ (div v_rangesum_~ret~0_163 v_rangesum_~cnt~0_163) 1) 4294967296)) (<= (+ v_rangesum_~ret~0_163 1) 0) (not (= (mod v_rangesum_~ret~0_163 v_rangesum_~cnt~0_163) 0))) (and (or (< 0 (+ v_rangesum_~ret~0_163 1)) (= (mod v_rangesum_~ret~0_163 v_rangesum_~cnt~0_163) 0)) (= |v_ULTIMATE.start_main_~ret5~0#1_27| (mod (div v_rangesum_~ret~0_163 v_rangesum_~cnt~0_163) 4294967296))) (and (<= (+ v_rangesum_~ret~0_163 1) 0) (= (+ |v_ULTIMATE.start_main_~ret5~0#1_27| 4294967296) (mod (+ (div v_rangesum_~ret~0_163 v_rangesum_~cnt~0_163) 1) 4294967296)) (not (= (mod v_rangesum_~ret~0_163 v_rangesum_~cnt~0_163) 0))))) (and (= |v_ULTIMATE.start_main_~ret5~0#1_27| 0) (= v_rangesum_~cnt~0_163 0))) (<= |v_ULTIMATE.start_main_~ret2~0#1_26| 2147483647) (<= |v_ULTIMATE.start_main_~ret~1#1_25| 2147483647) (<= 0 v_rangesum_~cnt~0_163) (<= 0 (+ |v_ULTIMATE.start_main_~ret2~0#1_26| 2147483648)) (<= 0 (+ |v_ULTIMATE.start_main_~ret5~0#1_27| 2147483648)) (<= 0 (+ |v_ULTIMATE.start_main_~ret~1#1_25| 2147483648)) (<= |v_ULTIMATE.start_main_~ret5~0#1_27| 2147483647))) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (exists ((|v_#memory_int_86| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_86| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_86| |ULTIMATE.start_main_~#x~0#1.base|) 76 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 76))))))' at error location [2024-11-14 05:29:09,732 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:29:09,732 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:29:09,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 13 [2024-11-14 05:29:09,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19698456] [2024-11-14 05:29:09,733 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:29:09,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-14 05:29:09,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:29:09,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-14 05:29:09,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=527, Unknown=25, NotChecked=0, Total=650 [2024-11-14 05:29:09,738 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand has 13 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 05:29:09,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:29:09,827 INFO L93 Difference]: Finished difference Result 64 states and 78 transitions. [2024-11-14 05:29:09,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-14 05:29:09,832 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 54 [2024-11-14 05:29:09,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:29:09,837 INFO L225 Difference]: With dead ends: 64 [2024-11-14 05:29:09,837 INFO L226 Difference]: Without dead ends: 46 [2024-11-14 05:29:09,838 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 109.5s TimeCoverageRelationStatistics Valid=98, Invalid=527, Unknown=25, NotChecked=0, Total=650 [2024-11-14 05:29:09,839 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:29:09,839 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 73 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:29:09,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-11-14 05:29:09,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-11-14 05:29:09,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 41 states have (on average 1.0731707317073171) internal successors, (44), 41 states have internal predecessors, (44), 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) [2024-11-14 05:29:09,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2024-11-14 05:29:09,852 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 54 [2024-11-14 05:29:09,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:29:09,856 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2024-11-14 05:29:09,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 05:29:09,857 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2024-11-14 05:29:09,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-14 05:29:09,858 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:29:09,858 INFO L215 NwaCegarLoop]: trace histogram [20, 15, 6, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:29:09,886 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-14 05:29:10,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:29:10,059 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:29:10,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:29:10,060 INFO L85 PathProgramCache]: Analyzing trace with hash 526738274, now seen corresponding path program 6 times [2024-11-14 05:29:10,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:29:10,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562713146] [2024-11-14 05:29:10,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:29:10,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:29:10,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:29:10,472 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 0 proven. 89 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2024-11-14 05:29:10,472 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:29:10,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562713146] [2024-11-14 05:29:10,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562713146] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:29:10,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [95035326] [2024-11-14 05:29:10,473 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 05:29:10,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:29:10,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:29:10,475 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:29:10,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-14 05:29:10,692 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 05:29:10,692 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:29:10,696 INFO L255 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 05:29:10,701 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:29:10,740 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 74 proven. 15 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2024-11-14 05:29:10,740 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:29:10,897 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 0 proven. 89 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2024-11-14 05:29:10,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [95035326] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:29:10,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [747170341] [2024-11-14 05:29:10,900 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2024-11-14 05:29:10,900 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:29:10,900 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:29:10,901 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:29:10,901 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:29:11,936 INFO L197 IcfgInterpreter]: Interpreting procedure rangesum with input of size 10 for LOIs [2024-11-14 05:29:12,257 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:29:56,756 WARN L286 SmtUtils]: Spent 43.28s on a formula simplification. DAG size of input: 115 DAG size of output: 65 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:30:02,549 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2704#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_#memory_int_101| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_101| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_101| |ULTIMATE.start_main_~#x~0#1.base|) 76 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 76))))) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (exists ((|v_ULTIMATE.start_main_~ret5~0#1_29| Int) (|v_ULTIMATE.start_main_~ret2~0#1_28| Int) (|v_ULTIMATE.start_main_~ret~1#1_27| Int) (v_rangesum_~cnt~0_205 Int) (v_rangesum_~ret~0_205 Int)) (and (<= |v_ULTIMATE.start_main_~ret2~0#1_28| 2147483647) (<= 0 (+ |v_ULTIMATE.start_main_~ret~1#1_27| 2147483648)) (<= |v_ULTIMATE.start_main_~ret5~0#1_29| 2147483647) (<= 0 (+ |v_ULTIMATE.start_main_~ret5~0#1_29| 2147483648)) (<= 0 (+ |v_ULTIMATE.start_main_~ret2~0#1_28| 2147483648)) (<= 0 v_rangesum_~cnt~0_205) (or (and (not (= v_rangesum_~cnt~0_205 0)) (or (and (or (= (mod v_rangesum_~ret~0_205 v_rangesum_~cnt~0_205) 0) (< 0 (+ v_rangesum_~ret~0_205 1))) (or (= (mod (div v_rangesum_~ret~0_205 v_rangesum_~cnt~0_205) 4294967296) (+ |v_ULTIMATE.start_main_~ret5~0#1_29| 4294967296)) (= (mod (div v_rangesum_~ret~0_205 v_rangesum_~cnt~0_205) 4294967296) |v_ULTIMATE.start_main_~ret5~0#1_29|))) (and (not (= (mod v_rangesum_~ret~0_205 v_rangesum_~cnt~0_205) 0)) (<= (+ v_rangesum_~ret~0_205 1) 0) (or (= (mod (+ (div v_rangesum_~ret~0_205 v_rangesum_~cnt~0_205) 1) 4294967296) |v_ULTIMATE.start_main_~ret5~0#1_29|) (= (mod (+ (div v_rangesum_~ret~0_205 v_rangesum_~cnt~0_205) 1) 4294967296) (+ |v_ULTIMATE.start_main_~ret5~0#1_29| 4294967296)))))) (and (= v_rangesum_~cnt~0_205 0) (= |v_ULTIMATE.start_main_~ret5~0#1_29| 0))) (or (not (= |v_ULTIMATE.start_main_~ret~1#1_27| |v_ULTIMATE.start_main_~ret5~0#1_29|)) (not (= |v_ULTIMATE.start_main_~ret2~0#1_28| |v_ULTIMATE.start_main_~ret~1#1_27|))) (<= |v_ULTIMATE.start_main_~ret~1#1_27| 2147483647))))' at error location [2024-11-14 05:30:02,549 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:30:02,549 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:30:02,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2024-11-14 05:30:02,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147963136] [2024-11-14 05:30:02,550 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:30:02,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-14 05:30:02,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:30:02,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-14 05:30:02,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=575, Unknown=26, NotChecked=0, Total=756 [2024-11-14 05:30:02,551 INFO L87 Difference]: Start difference. First operand 46 states and 50 transitions. Second operand has 15 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 05:30:02,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:30:02,609 INFO L93 Difference]: Finished difference Result 76 states and 92 transitions. [2024-11-14 05:30:02,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-14 05:30:02,610 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 61 [2024-11-14 05:30:02,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:30:02,611 INFO L225 Difference]: With dead ends: 76 [2024-11-14 05:30:02,611 INFO L226 Difference]: Without dead ends: 53 [2024-11-14 05:30:02,612 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 50.5s TimeCoverageRelationStatistics Valid=155, Invalid=575, Unknown=26, NotChecked=0, Total=756 [2024-11-14 05:30:02,612 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:30:02,613 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:30:02,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-11-14 05:30:02,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2024-11-14 05:30:02,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 48 states have (on average 1.0625) internal successors, (51), 48 states have internal predecessors, (51), 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) [2024-11-14 05:30:02,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 57 transitions. [2024-11-14 05:30:02,623 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 57 transitions. Word has length 61 [2024-11-14 05:30:02,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:30:02,623 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 57 transitions. [2024-11-14 05:30:02,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 05:30:02,623 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 57 transitions. [2024-11-14 05:30:02,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-14 05:30:02,625 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:30:02,625 INFO L215 NwaCegarLoop]: trace histogram [36, 20, 6, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:30:02,639 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-14 05:30:02,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:30:02,825 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:30:02,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:30:02,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1541941792, now seen corresponding path program 7 times [2024-11-14 05:30:02,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:30:02,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490090681] [2024-11-14 05:30:02,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:30:02,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:30:02,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:30:03,443 INFO L134 CoverageAnalysis]: Checked inductivity of 978 backedges. 0 proven. 418 refuted. 0 times theorem prover too weak. 560 trivial. 0 not checked. [2024-11-14 05:30:03,443 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:30:03,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490090681] [2024-11-14 05:30:03,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490090681] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:30:03,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [254648039] [2024-11-14 05:30:03,444 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-14 05:30:03,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:30:03,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:30:03,446 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:30:03,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-14 05:30:03,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:30:03,685 INFO L255 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-14 05:30:03,690 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:30:03,746 INFO L134 CoverageAnalysis]: Checked inductivity of 978 backedges. 340 proven. 78 refuted. 0 times theorem prover too weak. 560 trivial. 0 not checked. [2024-11-14 05:30:03,746 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:30:04,122 INFO L134 CoverageAnalysis]: Checked inductivity of 978 backedges. 0 proven. 418 refuted. 0 times theorem prover too weak. 560 trivial. 0 not checked. [2024-11-14 05:30:04,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [254648039] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:30:04,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2053716814] [2024-11-14 05:30:04,125 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2024-11-14 05:30:04,125 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:30:04,126 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:30:04,126 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:30:04,126 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:30:05,693 INFO L197 IcfgInterpreter]: Interpreting procedure rangesum with input of size 10 for LOIs [2024-11-14 05:30:05,766 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:30:32,558 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3464#(and (<= 1 |#StackHeapBarrier|) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (exists ((|v_#memory_int_116| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_116| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_116| |ULTIMATE.start_main_~#x~0#1.base|) 76 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 76))))) (exists ((v_rangesum_~ret~0_275 Int) (v_rangesum_~cnt~0_275 Int) (|v_ULTIMATE.start_main_~ret5~0#1_31| Int) (|v_ULTIMATE.start_main_~ret~1#1_29| Int) (|v_ULTIMATE.start_main_~ret2~0#1_30| Int)) (and (<= 0 (+ |v_ULTIMATE.start_main_~ret5~0#1_31| 2147483648)) (or (and (= |v_ULTIMATE.start_main_~ret5~0#1_31| 0) (= v_rangesum_~cnt~0_275 0)) (and (not (= v_rangesum_~cnt~0_275 0)) (or (and (= (+ |v_ULTIMATE.start_main_~ret5~0#1_31| 4294967296) (mod (div v_rangesum_~ret~0_275 v_rangesum_~cnt~0_275) 4294967296)) (or (= (mod v_rangesum_~ret~0_275 v_rangesum_~cnt~0_275) 0) (< 0 (+ v_rangesum_~ret~0_275 1)))) (and (= (+ |v_ULTIMATE.start_main_~ret5~0#1_31| 4294967296) (mod (+ (div v_rangesum_~ret~0_275 v_rangesum_~cnt~0_275) 1) 4294967296)) (<= (+ v_rangesum_~ret~0_275 1) 0) (not (= (mod v_rangesum_~ret~0_275 v_rangesum_~cnt~0_275) 0))) (and (<= (+ v_rangesum_~ret~0_275 1) 0) (= |v_ULTIMATE.start_main_~ret5~0#1_31| (mod (+ (div v_rangesum_~ret~0_275 v_rangesum_~cnt~0_275) 1) 4294967296)) (not (= (mod v_rangesum_~ret~0_275 v_rangesum_~cnt~0_275) 0))) (and (= |v_ULTIMATE.start_main_~ret5~0#1_31| (mod (div v_rangesum_~ret~0_275 v_rangesum_~cnt~0_275) 4294967296)) (or (= (mod v_rangesum_~ret~0_275 v_rangesum_~cnt~0_275) 0) (< 0 (+ v_rangesum_~ret~0_275 1))))))) (or (not (= |v_ULTIMATE.start_main_~ret2~0#1_30| |v_ULTIMATE.start_main_~ret~1#1_29|)) (not (= |v_ULTIMATE.start_main_~ret~1#1_29| |v_ULTIMATE.start_main_~ret5~0#1_31|))) (<= |v_ULTIMATE.start_main_~ret5~0#1_31| 2147483647) (<= 0 v_rangesum_~cnt~0_275) (<= |v_ULTIMATE.start_main_~ret~1#1_29| 2147483647) (<= |v_ULTIMATE.start_main_~ret2~0#1_30| 2147483647) (<= 0 (+ |v_ULTIMATE.start_main_~ret2~0#1_30| 2147483648)) (<= 0 (+ |v_ULTIMATE.start_main_~ret~1#1_29| 2147483648)))))' at error location [2024-11-14 05:30:32,558 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:30:32,558 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:30:32,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 23 [2024-11-14 05:30:32,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057174603] [2024-11-14 05:30:32,559 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:30:32,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-14 05:30:32,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:30:32,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-14 05:30:32,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=303, Invalid=934, Unknown=23, NotChecked=0, Total=1260 [2024-11-14 05:30:32,561 INFO L87 Difference]: Start difference. First operand 53 states and 57 transitions. Second operand has 23 states, 23 states have (on average 1.7826086956521738) internal successors, (41), 23 states have internal predecessors, (41), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 05:30:32,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:30:32,655 INFO L93 Difference]: Finished difference Result 91 states and 108 transitions. [2024-11-14 05:30:32,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-14 05:30:32,656 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 1.7826086956521738) internal successors, (41), 23 states have internal predecessors, (41), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 82 [2024-11-14 05:30:32,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:30:32,658 INFO L225 Difference]: With dead ends: 91 [2024-11-14 05:30:32,659 INFO L226 Difference]: Without dead ends: 61 [2024-11-14 05:30:32,660 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 219 SyntacticMatches, 6 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 496 ImplicationChecksByTransitivity, 27.3s TimeCoverageRelationStatistics Valid=303, Invalid=934, Unknown=23, NotChecked=0, Total=1260 [2024-11-14 05:30:32,662 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:30:32,662 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 53 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:30:32,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-11-14 05:30:32,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2024-11-14 05:30:32,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 56 states have (on average 1.0535714285714286) internal successors, (59), 56 states have internal predecessors, (59), 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) [2024-11-14 05:30:32,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 65 transitions. [2024-11-14 05:30:32,677 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 65 transitions. Word has length 82 [2024-11-14 05:30:32,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:30:32,677 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 65 transitions. [2024-11-14 05:30:32,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 1.7826086956521738) internal successors, (41), 23 states have internal predecessors, (41), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 05:30:32,677 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 65 transitions. [2024-11-14 05:30:32,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-14 05:30:32,683 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:30:32,683 INFO L215 NwaCegarLoop]: trace histogram [60, 20, 6, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:30:32,711 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-14 05:30:32,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-14 05:30:32,884 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:30:32,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:30:32,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1976640800, now seen corresponding path program 8 times [2024-11-14 05:30:32,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:30:32,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333739572] [2024-11-14 05:30:32,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:30:32,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:30:32,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:30:33,448 INFO L134 CoverageAnalysis]: Checked inductivity of 2190 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 2169 trivial. 0 not checked. [2024-11-14 05:30:33,449 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:30:33,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333739572] [2024-11-14 05:30:33,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333739572] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:30:33,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1947368523] [2024-11-14 05:30:33,449 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 05:30:33,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:30:33,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:30:33,452 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:30:33,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-14 05:30:33,730 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-14 05:30:33,730 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:30:33,734 INFO L255 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 05:30:33,737 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:30:33,767 INFO L134 CoverageAnalysis]: Checked inductivity of 2190 backedges. 886 proven. 21 refuted. 0 times theorem prover too weak. 1283 trivial. 0 not checked. [2024-11-14 05:30:33,767 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:30:33,919 INFO L134 CoverageAnalysis]: Checked inductivity of 2190 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 2169 trivial. 0 not checked. [2024-11-14 05:30:33,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1947368523] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:30:33,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1972405387] [2024-11-14 05:30:33,921 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2024-11-14 05:30:33,921 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:30:33,922 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:30:33,922 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:30:33,922 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:30:39,114 INFO L197 IcfgInterpreter]: Interpreting procedure rangesum with input of size 10 for LOIs [2024-11-14 05:30:39,425 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:30:54,617 WARN L286 SmtUtils]: Spent 10.86s on a formula simplification. DAG size of input: 111 DAG size of output: 59 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:31:37,448 WARN L286 SmtUtils]: Spent 36.60s on a formula simplification. DAG size of input: 70 DAG size of output: 62 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:33:01,917 WARN L286 SmtUtils]: Spent 1.28m on a formula simplification. DAG size of input: 225 DAG size of output: 172 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:33:46,595 WARN L286 SmtUtils]: Spent 36.76s on a formula simplification. DAG size of input: 88 DAG size of output: 80 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:33:54,879 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4408#(and (<= 1 |#StackHeapBarrier|) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (exists ((|v_#memory_int_130| (Array Int (Array Int Int)))) (= (store |v_#memory_int_130| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_130| |ULTIMATE.start_main_~#x~0#1.base|) 76 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 76))) |#memory_int|)) (exists ((|v_ULTIMATE.start_main_~ret~1#1_30| Int) (|v_ULTIMATE.start_main_~ret2~0#1_32| Int) (v_rangesum_~ret~0_356 Int) (v_rangesum_~cnt~0_356 Int) (|v_ULTIMATE.start_main_~ret5~0#1_33| Int)) (and (or (and (= v_rangesum_~cnt~0_356 0) (= |v_ULTIMATE.start_main_~ret5~0#1_33| 0)) (and (or (and (<= (+ v_rangesum_~ret~0_356 1) 0) (= (mod (+ (div v_rangesum_~ret~0_356 v_rangesum_~cnt~0_356) 1) 4294967296) (+ |v_ULTIMATE.start_main_~ret5~0#1_33| 4294967296)) (not (= (mod v_rangesum_~ret~0_356 v_rangesum_~cnt~0_356) 0))) (and (= (mod (div v_rangesum_~ret~0_356 v_rangesum_~cnt~0_356) 4294967296) |v_ULTIMATE.start_main_~ret5~0#1_33|) (or (< 0 (+ v_rangesum_~ret~0_356 1)) (= (mod v_rangesum_~ret~0_356 v_rangesum_~cnt~0_356) 0))) (and (or (< 0 (+ v_rangesum_~ret~0_356 1)) (= (mod v_rangesum_~ret~0_356 v_rangesum_~cnt~0_356) 0)) (= (mod (div v_rangesum_~ret~0_356 v_rangesum_~cnt~0_356) 4294967296) (+ |v_ULTIMATE.start_main_~ret5~0#1_33| 4294967296))) (and (<= (+ v_rangesum_~ret~0_356 1) 0) (= (mod (+ (div v_rangesum_~ret~0_356 v_rangesum_~cnt~0_356) 1) 4294967296) |v_ULTIMATE.start_main_~ret5~0#1_33|) (not (= (mod v_rangesum_~ret~0_356 v_rangesum_~cnt~0_356) 0)))) (not (= v_rangesum_~cnt~0_356 0)))) (<= |v_ULTIMATE.start_main_~ret2~0#1_32| 2147483647) (<= |v_ULTIMATE.start_main_~ret5~0#1_33| 2147483647) (<= 0 (+ |v_ULTIMATE.start_main_~ret~1#1_30| 2147483648)) (<= 0 v_rangesum_~cnt~0_356) (or (not (= |v_ULTIMATE.start_main_~ret2~0#1_32| |v_ULTIMATE.start_main_~ret~1#1_30|)) (not (= |v_ULTIMATE.start_main_~ret~1#1_30| |v_ULTIMATE.start_main_~ret5~0#1_33|))) (<= 0 (+ |v_ULTIMATE.start_main_~ret2~0#1_32| 2147483648)) (<= |v_ULTIMATE.start_main_~ret~1#1_30| 2147483647) (<= 0 (+ |v_ULTIMATE.start_main_~ret5~0#1_33| 2147483648)))))' at error location [2024-11-14 05:33:54,879 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:33:54,879 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:33:54,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 17 [2024-11-14 05:33:54,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382674028] [2024-11-14 05:33:54,879 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:33:54,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-14 05:33:54,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:33:54,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-14 05:33:54,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=661, Unknown=23, NotChecked=0, Total=870 [2024-11-14 05:33:54,881 INFO L87 Difference]: Start difference. First operand 61 states and 65 transitions. Second operand has 17 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 17 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-14 05:33:54,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:33:54,947 INFO L93 Difference]: Finished difference Result 97 states and 109 transitions. [2024-11-14 05:33:54,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-14 05:33:54,947 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 17 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 106 [2024-11-14 05:33:54,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:33:54,949 INFO L225 Difference]: With dead ends: 97 [2024-11-14 05:33:54,949 INFO L226 Difference]: Without dead ends: 69 [2024-11-14 05:33:54,949 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 337 ImplicationChecksByTransitivity, 195.6s TimeCoverageRelationStatistics Valid=186, Invalid=661, Unknown=23, NotChecked=0, Total=870 [2024-11-14 05:33:54,950 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:33:54,950 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 61 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:33:54,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2024-11-14 05:33:54,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2024-11-14 05:33:54,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 64 states have (on average 1.046875) internal successors, (67), 64 states have internal predecessors, (67), 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) [2024-11-14 05:33:54,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 73 transitions. [2024-11-14 05:33:54,960 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 73 transitions. Word has length 106 [2024-11-14 05:33:54,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:33:54,961 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 73 transitions. [2024-11-14 05:33:54,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 17 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-14 05:33:54,962 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 73 transitions. [2024-11-14 05:33:54,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-14 05:33:54,966 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:33:54,966 INFO L215 NwaCegarLoop]: trace histogram [60, 20, 14, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:33:54,985 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-14 05:33:55,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:33:55,167 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:33:55,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:33:55,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1359356384, now seen corresponding path program 9 times [2024-11-14 05:33:55,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:33:55,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178023391] [2024-11-14 05:33:55,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:33:55,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:33:55,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:33:56,223 INFO L134 CoverageAnalysis]: Checked inductivity of 2274 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 2169 trivial. 0 not checked. [2024-11-14 05:33:56,223 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:33:56,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178023391] [2024-11-14 05:33:56,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178023391] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:33:56,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1092432875] [2024-11-14 05:33:56,224 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 05:33:56,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:33:56,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:33:56,228 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:33:56,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-14 05:33:56,528 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 05:33:56,528 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:33:56,535 INFO L255 TraceCheckSpWp]: Trace formula consists of 645 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-14 05:33:56,539 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:33:56,611 INFO L134 CoverageAnalysis]: Checked inductivity of 2274 backedges. 886 proven. 105 refuted. 0 times theorem prover too weak. 1283 trivial. 0 not checked. [2024-11-14 05:33:56,613 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:33:57,142 INFO L134 CoverageAnalysis]: Checked inductivity of 2274 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 2169 trivial. 0 not checked. [2024-11-14 05:33:57,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1092432875] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:33:57,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1960045410] [2024-11-14 05:33:57,144 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2024-11-14 05:33:57,144 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:33:57,145 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:33:57,145 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:33:57,145 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:33:58,277 INFO L197 IcfgInterpreter]: Interpreting procedure rangesum with input of size 10 for LOIs [2024-11-14 05:33:58,635 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:34:12,011 WARN L286 SmtUtils]: Spent 10.43s on a formula simplification. DAG size of input: 112 DAG size of output: 57 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:34:23,934 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5435#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_#memory_int_152| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_152| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_152| |ULTIMATE.start_main_~#x~0#1.base|) 76 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 76))))) (exists ((|v_ULTIMATE.start_main_~ret~1#1_31| Int) (|v_ULTIMATE.start_main_~ret2~0#1_34| Int) (v_rangesum_~cnt~0_437 Int) (v_rangesum_~ret~0_437 Int) (|v_ULTIMATE.start_main_~ret5~0#1_35| Int)) (and (<= 0 v_rangesum_~cnt~0_437) (or (and (or (and (<= (+ v_rangesum_~ret~0_437 1) 0) (or (= |v_ULTIMATE.start_main_~ret5~0#1_35| (mod (+ (div v_rangesum_~ret~0_437 v_rangesum_~cnt~0_437) 1) 4294967296)) (= (+ |v_ULTIMATE.start_main_~ret5~0#1_35| 4294967296) (mod (+ (div v_rangesum_~ret~0_437 v_rangesum_~cnt~0_437) 1) 4294967296))) (not (= (mod v_rangesum_~ret~0_437 v_rangesum_~cnt~0_437) 0))) (and (or (= (mod v_rangesum_~ret~0_437 v_rangesum_~cnt~0_437) 0) (< 0 (+ v_rangesum_~ret~0_437 1))) (or (= (+ |v_ULTIMATE.start_main_~ret5~0#1_35| 4294967296) (mod (div v_rangesum_~ret~0_437 v_rangesum_~cnt~0_437) 4294967296)) (= |v_ULTIMATE.start_main_~ret5~0#1_35| (mod (div v_rangesum_~ret~0_437 v_rangesum_~cnt~0_437) 4294967296))))) (not (= v_rangesum_~cnt~0_437 0))) (and (= v_rangesum_~cnt~0_437 0) (= |v_ULTIMATE.start_main_~ret5~0#1_35| 0))) (<= 0 (+ |v_ULTIMATE.start_main_~ret2~0#1_34| 2147483648)) (<= 0 (+ |v_ULTIMATE.start_main_~ret5~0#1_35| 2147483648)) (or (not (= |v_ULTIMATE.start_main_~ret2~0#1_34| |v_ULTIMATE.start_main_~ret~1#1_31|)) (not (= |v_ULTIMATE.start_main_~ret~1#1_31| |v_ULTIMATE.start_main_~ret5~0#1_35|))) (<= |v_ULTIMATE.start_main_~ret~1#1_31| 2147483647) (<= 0 (+ |v_ULTIMATE.start_main_~ret~1#1_31| 2147483648)) (<= |v_ULTIMATE.start_main_~ret5~0#1_35| 2147483647) (<= |v_ULTIMATE.start_main_~ret2~0#1_34| 2147483647))) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (= |ULTIMATE.start_main_~#x~0#1.offset| 0))' at error location [2024-11-14 05:34:23,934 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:34:23,934 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:34:23,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 22 [2024-11-14 05:34:23,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117200306] [2024-11-14 05:34:23,934 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:34:23,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-14 05:34:23,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:34:23,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-14 05:34:23,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=281, Invalid=880, Unknown=29, NotChecked=0, Total=1190 [2024-11-14 05:34:23,936 INFO L87 Difference]: Start difference. First operand 69 states and 73 transitions. Second operand has 22 states, 22 states have (on average 1.6818181818181819) internal successors, (37), 22 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-14 05:34:24,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:34:24,024 INFO L93 Difference]: Finished difference Result 102 states and 111 transitions. [2024-11-14 05:34:24,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-14 05:34:24,025 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 1.6818181818181819) internal successors, (37), 22 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 114 [2024-11-14 05:34:24,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:34:24,026 INFO L225 Difference]: With dead ends: 102 [2024-11-14 05:34:24,026 INFO L226 Difference]: Without dead ends: 74 [2024-11-14 05:34:24,026 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 313 SyntacticMatches, 11 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 488 ImplicationChecksByTransitivity, 26.0s TimeCoverageRelationStatistics Valid=281, Invalid=880, Unknown=29, NotChecked=0, Total=1190 [2024-11-14 05:34:24,027 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:34:24,027 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 85 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:34:24,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-11-14 05:34:24,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2024-11-14 05:34:24,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 69 states have (on average 1.0434782608695652) internal successors, (72), 69 states have internal predecessors, (72), 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) [2024-11-14 05:34:24,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 78 transitions. [2024-11-14 05:34:24,034 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 78 transitions. Word has length 114 [2024-11-14 05:34:24,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:34:24,035 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 78 transitions. [2024-11-14 05:34:24,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 1.6818181818181819) internal successors, (37), 22 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-14 05:34:24,035 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 78 transitions. [2024-11-14 05:34:24,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-14 05:34:24,036 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:34:24,037 INFO L215 NwaCegarLoop]: trace histogram [60, 20, 19, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:34:24,057 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-14 05:34:24,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:34:24,237 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:34:24,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:34:24,238 INFO L85 PathProgramCache]: Analyzing trace with hash 257738798, now seen corresponding path program 10 times [2024-11-14 05:34:24,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:34:24,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528993685] [2024-11-14 05:34:24,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:34:24,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:34:27,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:34:27,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [117326926] [2024-11-14 05:34:27,120 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-14 05:34:27,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:34:27,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:34:27,123 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:34:27,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-14 05:34:34,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 05:34:34,709 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 05:34:38,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 05:34:39,137 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 05:34:39,137 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 05:34:39,138 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 05:34:39,173 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-14 05:34:39,342 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:34:39,345 INFO L407 BasicCegarLoop]: Path program histogram: [10, 1, 1, 1] [2024-11-14 05:34:39,476 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 05:34:39,480 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 05:34:39 BoogieIcfgContainer [2024-11-14 05:34:39,480 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 05:34:39,481 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 05:34:39,481 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 05:34:39,481 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 05:34:39,483 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:24:35" (3/4) ... [2024-11-14 05:34:39,484 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-14 05:34:39,627 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-14 05:34:39,627 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 05:34:39,628 INFO L158 Benchmark]: Toolchain (without parser) took 604843.80ms. Allocated memory was 142.6MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 104.6MB in the beginning and 648.4MB in the end (delta: -543.8MB). Peak memory consumption was 762.7MB. Max. memory is 16.1GB. [2024-11-14 05:34:39,629 INFO L158 Benchmark]: CDTParser took 0.56ms. Allocated memory is still 167.8MB. Free memory is still 103.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:34:39,629 INFO L158 Benchmark]: CACSL2BoogieTranslator took 330.64ms. Allocated memory is still 142.6MB. Free memory was 104.6MB in the beginning and 93.3MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:34:39,629 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.11ms. Allocated memory is still 142.6MB. Free memory was 93.3MB in the beginning and 91.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:34:39,630 INFO L158 Benchmark]: Boogie Preprocessor took 29.93ms. Allocated memory is still 142.6MB. Free memory was 91.9MB in the beginning and 90.9MB in the end (delta: 955.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:34:39,631 INFO L158 Benchmark]: RCFGBuilder took 664.92ms. Allocated memory is still 142.6MB. Free memory was 90.9MB in the beginning and 75.2MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 05:34:39,632 INFO L158 Benchmark]: TraceAbstraction took 603616.98ms. Allocated memory was 142.6MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 74.6MB in the beginning and 656.8MB in the end (delta: -582.2MB). Peak memory consumption was 729.2MB. Max. memory is 16.1GB. [2024-11-14 05:34:39,632 INFO L158 Benchmark]: Witness Printer took 146.85ms. Allocated memory is still 1.5GB. Free memory was 656.8MB in the beginning and 648.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:34:39,637 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.56ms. Allocated memory is still 167.8MB. Free memory is still 103.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 330.64ms. Allocated memory is still 142.6MB. Free memory was 104.6MB in the beginning and 93.3MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.11ms. Allocated memory is still 142.6MB. Free memory was 93.3MB in the beginning and 91.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 29.93ms. Allocated memory is still 142.6MB. Free memory was 91.9MB in the beginning and 90.9MB in the end (delta: 955.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 664.92ms. Allocated memory is still 142.6MB. Free memory was 90.9MB in the beginning and 75.2MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 603616.98ms. Allocated memory was 142.6MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 74.6MB in the beginning and 656.8MB in the end (delta: -582.2MB). Peak memory consumption was 729.2MB. Max. memory is 16.1GB. * Witness Printer took 146.85ms. Allocated memory is still 1.5GB. Free memory was 656.8MB in the beginning and 648.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 61]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L42] int x[20]; [L43] CALL init_nondet(x) [L16] int i; [L17] i = 0 VAL [i=0, x={4:0}] [L17] COND TRUE i < 20 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=1, x={4:0}] [L17] COND TRUE i < 20 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=2, x={4:0}] [L17] COND TRUE i < 20 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=3, x={4:0}] [L17] COND TRUE i < 20 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=4, x={4:0}] [L17] COND TRUE i < 20 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=5, x={4:0}] [L17] COND TRUE i < 20 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=6, x={4:0}] [L17] COND TRUE i < 20 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=7, x={4:0}] [L17] COND TRUE i < 20 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=8, x={4:0}] [L17] COND TRUE i < 20 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=9, x={4:0}] [L17] COND TRUE i < 20 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=10, x={4:0}] [L17] COND TRUE i < 20 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=11, x={4:0}] [L17] COND TRUE i < 20 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=12, x={4:0}] [L17] COND TRUE i < 20 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=13, x={4:0}] [L17] COND TRUE i < 20 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=14, x={4:0}] [L17] COND TRUE i < 20 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=15, x={4:0}] [L17] COND TRUE i < 20 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=16, x={4:0}] [L17] COND TRUE i < 20 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=17, x={4:0}] [L17] COND TRUE i < 20 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=18, x={4:0}] [L17] COND TRUE i < 20 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=19, x={4:0}] [L17] COND TRUE i < 20 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=20, x={4:0}] [L17] COND FALSE !(i < 20) [L43] RET init_nondet(x) [L44] int temp; [L45] int ret; [L46] int ret2; [L47] int ret5; VAL [x={4:0}] [L49] CALL, EXPR rangesum(x) VAL [\old(x)={4:0}] [L24] int i; [L25] long long ret; [L26] ret = 0 [L27] int cnt = 0; [L28] i = 0 VAL [\old(x)={4:0}, cnt=0, i=0, ret=0, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [\old(x)={4:0}, cnt=0, i=1, ret=0, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [\old(x)={4:0}, cnt=0, i=2, ret=0, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [\old(x)={4:0}, cnt=0, i=3, ret=0, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [\old(x)={4:0}, cnt=0, i=4, ret=0, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [\old(x)={4:0}, cnt=0, i=5, ret=0, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [\old(x)={4:0}, cnt=0, i=6, ret=0, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [\old(x)={4:0}, cnt=0, i=7, ret=0, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [\old(x)={4:0}, cnt=0, i=8, ret=0, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [\old(x)={4:0}, cnt=0, i=9, ret=0, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [\old(x)={4:0}, cnt=0, i=10, ret=0, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [\old(x)={4:0}, cnt=0, i=11, ret=0, x={4:0}] [L28] COND TRUE i < 20 [L29] COND TRUE i > 20/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [\old(x)={4:0}, cnt=1, i=12, ret=19, x={4:0}] [L28] COND TRUE i < 20 [L29] COND TRUE i > 20/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [\old(x)={4:0}, cnt=2, i=13, ret=37, x={4:0}] [L28] COND TRUE i < 20 [L29] COND TRUE i > 20/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [\old(x)={4:0}, cnt=3, i=14, ret=40, x={4:0}] [L28] COND TRUE i < 20 [L29] COND TRUE i > 20/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [\old(x)={4:0}, cnt=4, i=15, ret=45, x={4:0}] [L28] COND TRUE i < 20 [L29] COND TRUE i > 20/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [\old(x)={4:0}, cnt=5, i=16, ret=51, x={4:0}] [L28] COND TRUE i < 20 [L29] COND TRUE i > 20/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [\old(x)={4:0}, cnt=6, i=17, ret=58, x={4:0}] [L28] COND TRUE i < 20 [L29] COND TRUE i > 20/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [\old(x)={4:0}, cnt=7, i=18, ret=66, x={4:0}] [L28] COND TRUE i < 20 [L29] COND TRUE i > 20/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [\old(x)={4:0}, cnt=8, i=19, ret=-19, x={4:0}] [L28] COND TRUE i < 20 [L29] COND TRUE i > 20/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [\old(x)={4:0}, cnt=9, i=20, ret=-10, x={4:0}] [L28] COND FALSE !(i < 20) [L34] COND TRUE cnt !=0 [L35] return ret / cnt; [L49] RET, EXPR rangesum(x) VAL [x={4:0}] [L49] ret = rangesum(x) [L51] EXPR x[0] [L51] temp=x[0] [L51] EXPR x[1] [L51] x[0] = x[1] [L51] x[1] = temp VAL [ret=-1, x={4:0}] [L52] CALL, EXPR rangesum(x) VAL [\old(x)={4:0}] [L24] int i; [L25] long long ret; [L26] ret = 0 [L27] int cnt = 0; [L28] i = 0 VAL [\old(x)={4:0}, cnt=0, i=0, ret=0, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [\old(x)={4:0}, cnt=0, i=1, ret=0, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [\old(x)={4:0}, cnt=0, i=2, ret=0, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [\old(x)={4:0}, cnt=0, i=3, ret=0, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [\old(x)={4:0}, cnt=0, i=4, ret=0, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [\old(x)={4:0}, cnt=0, i=5, ret=0, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [\old(x)={4:0}, cnt=0, i=6, ret=0, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [\old(x)={4:0}, cnt=0, i=7, ret=0, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [\old(x)={4:0}, cnt=0, i=8, ret=0, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [\old(x)={4:0}, cnt=0, i=9, ret=0, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [\old(x)={4:0}, cnt=0, i=10, ret=0, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [\old(x)={4:0}, cnt=0, i=11, ret=0, x={4:0}] [L28] COND TRUE i < 20 [L29] COND TRUE i > 20/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [\old(x)={4:0}, cnt=1, i=12, ret=19, x={4:0}] [L28] COND TRUE i < 20 [L29] COND TRUE i > 20/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [\old(x)={4:0}, cnt=2, i=13, ret=37, x={4:0}] [L28] COND TRUE i < 20 [L29] COND TRUE i > 20/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [\old(x)={4:0}, cnt=3, i=14, ret=40, x={4:0}] [L28] COND TRUE i < 20 [L29] COND TRUE i > 20/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [\old(x)={4:0}, cnt=4, i=15, ret=45, x={4:0}] [L28] COND TRUE i < 20 [L29] COND TRUE i > 20/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [\old(x)={4:0}, cnt=5, i=16, ret=51, x={4:0}] [L28] COND TRUE i < 20 [L29] COND TRUE i > 20/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [\old(x)={4:0}, cnt=6, i=17, ret=58, x={4:0}] [L28] COND TRUE i < 20 [L29] COND TRUE i > 20/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [\old(x)={4:0}, cnt=7, i=18, ret=66, x={4:0}] [L28] COND TRUE i < 20 [L29] COND TRUE i > 20/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [\old(x)={4:0}, cnt=8, i=19, ret=-19, x={4:0}] [L28] COND TRUE i < 20 [L29] COND TRUE i > 20/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [\old(x)={4:0}, cnt=9, i=20, ret=-10, x={4:0}] [L28] COND FALSE !(i < 20) [L34] COND TRUE cnt !=0 [L35] return ret / cnt; [L52] RET, EXPR rangesum(x) VAL [ret=-1, x={4:0}] [L52] ret2 = rangesum(x) [L53] EXPR x[0] [L53] temp=x[0] [L54] int i =0 ; VAL [i=0, ret2=-1, ret=-1, temp=-2147483644, x={4:0}] [L54] COND TRUE i<20 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=1, ret2=-1, ret=-1, temp=-2147483644, x={4:0}] [L54] COND TRUE i<20 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=2, ret2=-1, ret=-1, temp=-2147483644, x={4:0}] [L54] COND TRUE i<20 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=3, ret2=-1, ret=-1, temp=-2147483644, x={4:0}] [L54] COND TRUE i<20 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=4, ret2=-1, ret=-1, temp=-2147483644, x={4:0}] [L54] COND TRUE i<20 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=5, ret2=-1, ret=-1, temp=-2147483644, x={4:0}] [L54] COND TRUE i<20 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=6, ret2=-1, ret=-1, temp=-2147483644, x={4:0}] [L54] COND TRUE i<20 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=7, ret2=-1, ret=-1, temp=-2147483644, x={4:0}] [L54] COND TRUE i<20 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=8, ret2=-1, ret=-1, temp=-2147483644, x={4:0}] [L54] COND TRUE i<20 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=9, ret2=-1, ret=-1, temp=-2147483644, x={4:0}] [L54] COND TRUE i<20 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=10, ret2=-1, ret=-1, temp=-2147483644, x={4:0}] [L54] COND TRUE i<20 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=11, ret2=-1, ret=-1, temp=-2147483644, x={4:0}] [L54] COND TRUE i<20 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=12, ret2=-1, ret=-1, temp=-2147483644, x={4:0}] [L54] COND TRUE i<20 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=13, ret2=-1, ret=-1, temp=-2147483644, x={4:0}] [L54] COND TRUE i<20 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=14, ret2=-1, ret=-1, temp=-2147483644, x={4:0}] [L54] COND TRUE i<20 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=15, ret2=-1, ret=-1, temp=-2147483644, x={4:0}] [L54] COND TRUE i<20 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=16, ret2=-1, ret=-1, temp=-2147483644, x={4:0}] [L54] COND TRUE i<20 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=17, ret2=-1, ret=-1, temp=-2147483644, x={4:0}] [L54] COND TRUE i<20 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=18, ret2=-1, ret=-1, temp=-2147483644, x={4:0}] [L54] COND TRUE i<20 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=19, ret2=-1, ret=-1, temp=-2147483644, x={4:0}] [L54] COND FALSE !(i<20 -1) [L57] x[20 -1] = temp VAL [ret2=-1, ret=-1, x={4:0}] [L58] CALL, EXPR rangesum(x) VAL [\old(x)={4:0}] [L24] int i; [L25] long long ret; [L26] ret = 0 [L27] int cnt = 0; [L28] i = 0 VAL [\old(x)={4:0}, cnt=0, i=0, ret=0, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [\old(x)={4:0}, cnt=0, i=1, ret=0, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [\old(x)={4:0}, cnt=0, i=2, ret=0, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [\old(x)={4:0}, cnt=0, i=3, ret=0, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [\old(x)={4:0}, cnt=0, i=4, ret=0, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [\old(x)={4:0}, cnt=0, i=5, ret=0, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [\old(x)={4:0}, cnt=0, i=6, ret=0, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [\old(x)={4:0}, cnt=0, i=7, ret=0, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [\old(x)={4:0}, cnt=0, i=8, ret=0, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [\old(x)={4:0}, cnt=0, i=9, ret=0, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [\old(x)={4:0}, cnt=0, i=10, ret=0, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [\old(x)={4:0}, cnt=0, i=11, ret=0, x={4:0}] [L28] COND TRUE i < 20 [L29] COND TRUE i > 20/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [\old(x)={4:0}, cnt=1, i=12, ret=18, x={4:0}] [L28] COND TRUE i < 20 [L29] COND TRUE i > 20/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [\old(x)={4:0}, cnt=2, i=13, ret=21, x={4:0}] [L28] COND TRUE i < 20 [L29] COND TRUE i > 20/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [\old(x)={4:0}, cnt=3, i=14, ret=26, x={4:0}] [L28] COND TRUE i < 20 [L29] COND TRUE i > 20/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [\old(x)={4:0}, cnt=4, i=15, ret=32, x={4:0}] [L28] COND TRUE i < 20 [L29] COND TRUE i > 20/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [\old(x)={4:0}, cnt=5, i=16, ret=39, x={4:0}] [L28] COND TRUE i < 20 [L29] COND TRUE i > 20/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [\old(x)={4:0}, cnt=6, i=17, ret=47, x={4:0}] [L28] COND TRUE i < 20 [L29] COND TRUE i > 20/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [\old(x)={4:0}, cnt=7, i=18, ret=-38, x={4:0}] [L28] COND TRUE i < 20 [L29] COND TRUE i > 20/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [\old(x)={4:0}, cnt=8, i=19, ret=-29, x={4:0}] [L28] COND TRUE i < 20 [L29] COND TRUE i > 20/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [\old(x)={4:0}, cnt=9, i=20, ret=-2147483673, x={4:0}] [L28] COND FALSE !(i < 20) [L34] COND TRUE cnt !=0 [L35] return ret / cnt; [L58] RET, EXPR rangesum(x) VAL [ret2=-1, ret=-1, x={4:0}] [L58] ret5 = rangesum(x) [L60] COND TRUE ret != ret2 || ret !=ret5 VAL [x={4:0}] [L61] reach_error() VAL [x={4:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 603.4s, OverallIterations: 13, TraceHistogramMax: 60, PathProgramHistogramMax: 10, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 607 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 447 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 359 IncrementalHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 160 mSDtfsCounter, 359 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1770 GetRequests, 1504 SyntacticMatches, 19 SemanticMatches, 247 ConstructedPredicates, 0 IntricatePredicates, 7 DeprecatedPredicates, 2743 ImplicationChecksByTransitivity, 548.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred in iteration=12, InterpolantAutomatonStates: 143, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 11.4s SatisfiabilityAnalysisTime, 6.6s InterpolantComputationTime, 1450 NumberOfCodeBlocks, 1350 NumberOfCodeBlocksAsserted, 35 NumberOfCheckSat, 1731 ConstructedInterpolants, 0 QuantifiedInterpolants, 2127 SizeOfPredicates, 0 NumberOfNonLiveVariables, 3034 ConjunctsInSsa, 77 ConjunctsInUnsatCore, 32 InterpolantComputations, 3 PerfectInterpolantSequences, 17822/19579 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-14 05:34:39,857 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2024-11-14 05:34:40,016 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_403b4d54-79b5-42ac-b496-e1ffd2906e49/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE