./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/reducercommutativity/rangesum10.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_62d2ba94-64a5-42a0-a532-36f35759788b/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d2ba94-64a5-42a0-a532-36f35759788b/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_62d2ba94-64a5-42a0-a532-36f35759788b/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d2ba94-64a5-42a0-a532-36f35759788b/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/reducercommutativity/rangesum10.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d2ba94-64a5-42a0-a532-36f35759788b/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_62d2ba94-64a5-42a0-a532-36f35759788b/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 43671c88cb28f81a53d6c7fbea907e55b0f99c68f8a522c4103c0a12ddf9f652 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:10:39,298 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:10:39,386 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d2ba94-64a5-42a0-a532-36f35759788b/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 03:10:39,391 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:10:39,391 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:10:39,419 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:10:39,420 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:10:39,420 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:10:39,421 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:10:39,421 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:10:39,421 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:10:39,421 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:10:39,422 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:10:39,422 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:10:39,422 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:10:39,422 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:10:39,422 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:10:39,422 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:10:39,423 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:10:39,423 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:10:39,423 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:10:39,423 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:10:39,424 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:10:39,424 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:10:39,424 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:10:39,424 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:10:39,425 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:10:39,425 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:10:39,425 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:10:39,425 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:10:39,425 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:10:39,425 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:10:39,426 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:10:39,426 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:10:39,426 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:10:39,426 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:10:39,426 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:10:39,426 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:10:39,426 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:10:39,427 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:10:39,427 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:10:39,427 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:10:39,427 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:10:39,427 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:10:39,427 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:10:39,428 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:10:39,428 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:10:39,428 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_62d2ba94-64a5-42a0-a532-36f35759788b/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 -> 43671c88cb28f81a53d6c7fbea907e55b0f99c68f8a522c4103c0a12ddf9f652 [2024-11-14 03:10:39,820 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:10:39,835 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:10:39,838 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:10:39,839 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:10:39,841 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:10:39,842 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d2ba94-64a5-42a0-a532-36f35759788b/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/reducercommutativity/rangesum10.i Unable to find full path for "g++" [2024-11-14 03:10:42,013 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:10:42,282 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:10:42,283 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d2ba94-64a5-42a0-a532-36f35759788b/sv-benchmarks/c/reducercommutativity/rangesum10.i [2024-11-14 03:10:42,291 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d2ba94-64a5-42a0-a532-36f35759788b/bin/utaipan-verify-sOmjnqqW8E/data/28d93eb01/fbccaf4ae2644c87aa7ea38c035dbe4d/FLAGd0aab6269 [2024-11-14 03:10:42,307 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d2ba94-64a5-42a0-a532-36f35759788b/bin/utaipan-verify-sOmjnqqW8E/data/28d93eb01/fbccaf4ae2644c87aa7ea38c035dbe4d [2024-11-14 03:10:42,309 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:10:42,311 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:10:42,312 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:10:42,313 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:10:42,318 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:10:42,319 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:10:42" (1/1) ... [2024-11-14 03:10:42,320 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f60ac16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:10:42, skipping insertion in model container [2024-11-14 03:10:42,320 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:10:42" (1/1) ... [2024-11-14 03:10:42,336 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:10:42,546 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_62d2ba94-64a5-42a0-a532-36f35759788b/sv-benchmarks/c/reducercommutativity/rangesum10.i[1465,1478] [2024-11-14 03:10:42,553 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:10:42,562 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:10:42,596 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_62d2ba94-64a5-42a0-a532-36f35759788b/sv-benchmarks/c/reducercommutativity/rangesum10.i[1465,1478] [2024-11-14 03:10:42,597 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:10:42,619 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:10:42,620 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:10:42 WrapperNode [2024-11-14 03:10:42,620 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:10:42,622 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:10:42,623 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:10:42,623 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:10:42,630 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:10:42" (1/1) ... [2024-11-14 03:10:42,637 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:10:42" (1/1) ... [2024-11-14 03:10:42,658 INFO L138 Inliner]: procedures = 17, calls = 23, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 69 [2024-11-14 03:10:42,659 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:10:42,659 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:10:42,660 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:10:42,661 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:10:42,668 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:10:42" (1/1) ... [2024-11-14 03:10:42,668 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:10:42" (1/1) ... [2024-11-14 03:10:42,670 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:10:42" (1/1) ... [2024-11-14 03:10:42,670 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:10:42" (1/1) ... [2024-11-14 03:10:42,676 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:10:42" (1/1) ... [2024-11-14 03:10:42,680 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:10:42" (1/1) ... [2024-11-14 03:10:42,681 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:10:42" (1/1) ... [2024-11-14 03:10:42,682 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:10:42" (1/1) ... [2024-11-14 03:10:42,684 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:10:42,685 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:10:42,685 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:10:42,686 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:10:42,687 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:10:42" (1/1) ... [2024-11-14 03:10:42,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:10:42,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d2ba94-64a5-42a0-a532-36f35759788b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:10:42,723 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d2ba94-64a5-42a0-a532-36f35759788b/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:10:42,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d2ba94-64a5-42a0-a532-36f35759788b/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:10:42,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:10:42,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 03:10:42,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 03:10:42,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 03:10:42,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:10:42,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:10:42,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 03:10:42,758 INFO L130 BoogieDeclarations]: Found specification of procedure rangesum [2024-11-14 03:10:42,758 INFO L138 BoogieDeclarations]: Found implementation of procedure rangesum [2024-11-14 03:10:42,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 03:10:42,843 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:10:42,846 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:10:43,144 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-14 03:10:43,145 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:10:43,234 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:10:43,234 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-14 03:10:43,235 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:10:43 BoogieIcfgContainer [2024-11-14 03:10:43,235 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:10:43,238 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:10:43,238 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:10:43,243 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:10:43,244 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:10:42" (1/3) ... [2024-11-14 03:10:43,244 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34549c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:10:43, skipping insertion in model container [2024-11-14 03:10:43,245 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:10:42" (2/3) ... [2024-11-14 03:10:43,245 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34549c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:10:43, skipping insertion in model container [2024-11-14 03:10:43,245 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:10:43" (3/3) ... [2024-11-14 03:10:43,248 INFO L112 eAbstractionObserver]: Analyzing ICFG rangesum10.i [2024-11-14 03:10:43,266 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:10:43,268 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG rangesum10.i that has 2 procedures, 17 locations, 1 initial locations, 3 loop locations, and 1 error locations. [2024-11-14 03:10:43,339 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:10:43,362 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;@3404af3d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:10:43,362 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 03:10:43,366 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 03:10:43,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-14 03:10:43,376 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:10:43,377 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:10:43,378 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:10:43,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:10:43,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1044973024, now seen corresponding path program 1 times [2024-11-14 03:10:43,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:10:43,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96213991] [2024-11-14 03:10:43,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:10:43,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:10:43,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:10:43,792 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 03:10:43,793 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:10:43,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96213991] [2024-11-14 03:10:43,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96213991] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:10:43,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:10:43,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:10:43,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111758058] [2024-11-14 03:10:43,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:10:43,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:10:43,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:10:43,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:10:43,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:10:43,831 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 03:10:43,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:10:43,909 INFO L93 Difference]: Finished difference Result 33 states and 43 transitions. [2024-11-14 03:10:43,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:10:43,915 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 03:10:43,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:10:43,922 INFO L225 Difference]: With dead ends: 33 [2024-11-14 03:10:43,922 INFO L226 Difference]: Without dead ends: 16 [2024-11-14 03:10:43,927 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 03:10:43,932 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 03:10:43,932 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 03:10:43,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2024-11-14 03:10:43,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2024-11-14 03:10:44,000 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 03:10:44,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2024-11-14 03:10:44,010 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 20 transitions. Word has length 20 [2024-11-14 03:10:44,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:10:44,011 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 20 transitions. [2024-11-14 03:10:44,011 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 03:10:44,012 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2024-11-14 03:10:44,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-14 03:10:44,014 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:10:44,014 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 03:10:44,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 03:10:44,015 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:10:44,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:10:44,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1095982348, now seen corresponding path program 1 times [2024-11-14 03:10:44,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:10:44,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841308796] [2024-11-14 03:10:44,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:10:44,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:10:44,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:10:44,366 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 03:10:44,366 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:10:44,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841308796] [2024-11-14 03:10:44,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841308796] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:10:44,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1385188776] [2024-11-14 03:10:44,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:10:44,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:10:44,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d2ba94-64a5-42a0-a532-36f35759788b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:10:44,373 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d2ba94-64a5-42a0-a532-36f35759788b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:10:44,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d2ba94-64a5-42a0-a532-36f35759788b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 03:10:44,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:10:44,500 INFO L255 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-14 03:10:44,507 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:10:44,536 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 03:10:44,536 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:10:44,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1385188776] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:10:44,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:10:44,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-14 03:10:44,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270576833] [2024-11-14 03:10:44,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:10:44,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:10:44,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:10:44,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:10:44,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:10:44,539 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 03:10:44,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:10:44,564 INFO L93 Difference]: Finished difference Result 29 states and 39 transitions. [2024-11-14 03:10:44,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:10:44,565 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 03:10:44,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:10:44,566 INFO L225 Difference]: With dead ends: 29 [2024-11-14 03:10:44,566 INFO L226 Difference]: Without dead ends: 17 [2024-11-14 03:10:44,567 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 03:10:44,568 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 03:10:44,568 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 03:10:44,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2024-11-14 03:10:44,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2024-11-14 03:10:44,573 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 03:10:44,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2024-11-14 03:10:44,574 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 21 [2024-11-14 03:10:44,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:10:44,574 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2024-11-14 03:10:44,574 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 03:10:44,575 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2024-11-14 03:10:44,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-14 03:10:44,575 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:10:44,576 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 03:10:44,595 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d2ba94-64a5-42a0-a532-36f35759788b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 03:10:44,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d2ba94-64a5-42a0-a532-36f35759788b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-14 03:10:44,777 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:10:44,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:10:44,777 INFO L85 PathProgramCache]: Analyzing trace with hash 254755254, now seen corresponding path program 1 times [2024-11-14 03:10:44,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:10:44,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680161445] [2024-11-14 03:10:44,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:10:44,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:10:44,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:10:45,025 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 03:10:45,026 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:10:45,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680161445] [2024-11-14 03:10:45,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680161445] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:10:45,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2051711481] [2024-11-14 03:10:45,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:10:45,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:10:45,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d2ba94-64a5-42a0-a532-36f35759788b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:10:45,032 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d2ba94-64a5-42a0-a532-36f35759788b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:10:45,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d2ba94-64a5-42a0-a532-36f35759788b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 03:10:45,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:10:45,192 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-14 03:10:45,195 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:10:45,217 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 03:10:45,219 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:10:45,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2051711481] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:10:45,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:10:45,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-14 03:10:45,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828868710] [2024-11-14 03:10:45,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:10:45,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:10:45,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:10:45,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:10:45,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:10:45,223 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 03:10:45,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:10:45,254 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2024-11-14 03:10:45,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:10:45,256 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 03:10:45,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:10:45,257 INFO L225 Difference]: With dead ends: 27 [2024-11-14 03:10:45,257 INFO L226 Difference]: Without dead ends: 18 [2024-11-14 03:10:45,258 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 03:10:45,259 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 03:10:45,260 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 03:10:45,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2024-11-14 03:10:45,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2024-11-14 03:10:45,269 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 03:10:45,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2024-11-14 03:10:45,271 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 24 [2024-11-14 03:10:45,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:10:45,273 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2024-11-14 03:10:45,273 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 03:10:45,274 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2024-11-14 03:10:45,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-14 03:10:45,275 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:10:45,275 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 03:10:45,298 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d2ba94-64a5-42a0-a532-36f35759788b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-14 03:10:45,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d2ba94-64a5-42a0-a532-36f35759788b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-14 03:10:45,480 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:10:45,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:10:45,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1151857616, now seen corresponding path program 1 times [2024-11-14 03:10:45,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:10:45,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143017234] [2024-11-14 03:10:45,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:10:45,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:10:45,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:10:45,728 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 03:10:45,728 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:10:45,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143017234] [2024-11-14 03:10:45,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143017234] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:10:45,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2071063190] [2024-11-14 03:10:45,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:10:45,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:10:45,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d2ba94-64a5-42a0-a532-36f35759788b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:10:45,735 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d2ba94-64a5-42a0-a532-36f35759788b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:10:45,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d2ba94-64a5-42a0-a532-36f35759788b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 03:10:45,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:10:45,886 INFO L255 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:10:45,888 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:10:45,921 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 03:10:45,922 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:10:45,971 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 03:10:45,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2071063190] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:10:45,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [580168446] [2024-11-14 03:10:45,994 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2024-11-14 03:10:45,994 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:10:45,998 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:10:46,004 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:10:46,004 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:10:51,535 INFO L197 IcfgInterpreter]: Interpreting procedure rangesum with input of size 10 for LOIs [2024-11-14 03:10:52,498 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:11:32,515 WARN L286 SmtUtils]: Spent 39.16s 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 03:11:54,199 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|) 36 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 36))))))' at error location [2024-11-14 03:11:54,199 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:11:54,200 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:11:54,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 4] total 7 [2024-11-14 03:11:54,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285598171] [2024-11-14 03:11:54,200 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:11:54,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 03:11:54,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:11:54,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 03:11:54,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=284, Unknown=25, NotChecked=0, Total=380 [2024-11-14 03:11:54,205 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 03:11:54,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:11:54,249 INFO L93 Difference]: Finished difference Result 36 states and 46 transitions. [2024-11-14 03:11:54,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 03:11:54,250 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 03:11:54,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:11:54,251 INFO L225 Difference]: With dead ends: 36 [2024-11-14 03:11:54,251 INFO L226 Difference]: Without dead ends: 21 [2024-11-14 03:11:54,251 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 61.7s TimeCoverageRelationStatistics Valid=71, Invalid=284, Unknown=25, NotChecked=0, Total=380 [2024-11-14 03:11:54,253 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 03:11:54,253 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 03:11:54,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2024-11-14 03:11:54,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2024-11-14 03:11:54,259 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 03:11:54,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2024-11-14 03:11:54,260 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 25 [2024-11-14 03:11:54,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:11:54,260 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2024-11-14 03:11:54,260 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 03:11:54,260 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2024-11-14 03:11:54,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-14 03:11:54,261 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:11:54,261 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 03:11:54,283 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d2ba94-64a5-42a0-a532-36f35759788b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-14 03:11:54,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d2ba94-64a5-42a0-a532-36f35759788b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-14 03:11:54,468 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:11:54,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:11:54,468 INFO L85 PathProgramCache]: Analyzing trace with hash 627098084, now seen corresponding path program 2 times [2024-11-14 03:11:54,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:11:54,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314048309] [2024-11-14 03:11:54,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:11:54,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:11:54,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:11:54,641 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 03:11:54,641 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:11:54,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314048309] [2024-11-14 03:11:54,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314048309] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:11:54,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [446627553] [2024-11-14 03:11:54,645 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:11:54,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:11:54,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d2ba94-64a5-42a0-a532-36f35759788b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:11:54,649 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d2ba94-64a5-42a0-a532-36f35759788b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:11:54,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d2ba94-64a5-42a0-a532-36f35759788b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 03:11:54,755 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-14 03:11:54,756 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:11:54,760 INFO L255 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:11:54,762 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:11:54,783 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 03:11:54,783 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:11:54,825 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 03:11:54,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [446627553] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:11:54,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1304418412] [2024-11-14 03:11:54,827 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2024-11-14 03:11:54,828 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:11:54,828 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:11:54,828 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:11:54,828 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:11:57,245 INFO L197 IcfgInterpreter]: Interpreting procedure rangesum with input of size 10 for LOIs [2024-11-14 03:11:57,340 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:12:08,978 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|))))) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (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|) 36 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 36))))))' at error location [2024-11-14 03:12:08,978 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:12:08,978 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:12:08,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-14 03:12:08,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881983327] [2024-11-14 03:12:08,979 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:12:08,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 03:12:08,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:12:08,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 03:12:08,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=285, Unknown=31, NotChecked=0, Total=380 [2024-11-14 03:12:08,981 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 03:12:09,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:12:09,015 INFO L93 Difference]: Finished difference Result 38 states and 50 transitions. [2024-11-14 03:12:09,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 03:12:09,016 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 03:12:09,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:12:09,016 INFO L225 Difference]: With dead ends: 38 [2024-11-14 03:12:09,016 INFO L226 Difference]: Without dead ends: 24 [2024-11-14 03:12:09,017 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 11.7s TimeCoverageRelationStatistics Valid=64, Invalid=285, Unknown=31, NotChecked=0, Total=380 [2024-11-14 03:12:09,018 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 03:12:09,018 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 03:12:09,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2024-11-14 03:12:09,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2024-11-14 03:12:09,022 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 03:12:09,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2024-11-14 03:12:09,023 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 28 [2024-11-14 03:12:09,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:12:09,024 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2024-11-14 03:12:09,024 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 03:12:09,024 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2024-11-14 03:12:09,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-14 03:12:09,025 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:12:09,025 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 03:12:09,053 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d2ba94-64a5-42a0-a532-36f35759788b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-14 03:12:09,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d2ba94-64a5-42a0-a532-36f35759788b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:12:09,249 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:12:09,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:12:09,250 INFO L85 PathProgramCache]: Analyzing trace with hash 997500398, now seen corresponding path program 3 times [2024-11-14 03:12:09,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:12:09,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450819631] [2024-11-14 03:12:09,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:12:09,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:12:09,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:12:09,391 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 03:12:09,391 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:12:09,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450819631] [2024-11-14 03:12:09,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450819631] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:12:09,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [496948730] [2024-11-14 03:12:09,392 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 03:12:09,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:12:09,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d2ba94-64a5-42a0-a532-36f35759788b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:12:09,394 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d2ba94-64a5-42a0-a532-36f35759788b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:12:09,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d2ba94-64a5-42a0-a532-36f35759788b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 03:12:09,522 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 03:12:09,522 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:12:09,526 INFO L255 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 03:12:09,527 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:12:09,599 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 52 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-14 03:12:09,602 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:12:09,732 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-14 03:12:09,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [496948730] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:12:09,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1878787923] [2024-11-14 03:12:09,735 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2024-11-14 03:12:09,735 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:12:09,737 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:12:09,738 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:12:09,738 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:12:11,263 INFO L197 IcfgInterpreter]: Interpreting procedure rangesum with input of size 10 for LOIs [2024-11-14 03:12:11,357 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:12:30,014 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1156#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_#memory_int_50| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_50| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_50| |ULTIMATE.start_main_~#x~0#1.base|) 36 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 36))))) (exists ((|v_ULTIMATE.start_main_~ret~1#1_20| Int) (v_rangesum_~ret~0_102 Int) (v_rangesum_~cnt~0_102 Int) (|v_ULTIMATE.start_main_~ret5~0#1_21| Int) (|v_ULTIMATE.start_main_~ret2~0#1_20| Int)) (and (<= |v_ULTIMATE.start_main_~ret5~0#1_21| 2147483647) (<= 0 v_rangesum_~cnt~0_102) (<= 0 (+ |v_ULTIMATE.start_main_~ret2~0#1_20| 2147483648)) (<= 0 (+ |v_ULTIMATE.start_main_~ret~1#1_20| 2147483648)) (<= 0 (+ |v_ULTIMATE.start_main_~ret5~0#1_21| 2147483648)) (<= |v_ULTIMATE.start_main_~ret2~0#1_20| 2147483647) (or (and (not (= v_rangesum_~cnt~0_102 0)) (or (and (or (= (+ |v_ULTIMATE.start_main_~ret5~0#1_21| 4294967296) (mod (+ (div v_rangesum_~ret~0_102 v_rangesum_~cnt~0_102) 1) 4294967296)) (= |v_ULTIMATE.start_main_~ret5~0#1_21| (mod (+ (div v_rangesum_~ret~0_102 v_rangesum_~cnt~0_102) 1) 4294967296))) (not (= (mod v_rangesum_~ret~0_102 v_rangesum_~cnt~0_102) 0)) (<= (+ v_rangesum_~ret~0_102 1) 0)) (and (or (= (mod (div v_rangesum_~ret~0_102 v_rangesum_~cnt~0_102) 4294967296) |v_ULTIMATE.start_main_~ret5~0#1_21|) (= (mod (div v_rangesum_~ret~0_102 v_rangesum_~cnt~0_102) 4294967296) (+ |v_ULTIMATE.start_main_~ret5~0#1_21| 4294967296))) (or (< 0 (+ v_rangesum_~ret~0_102 1)) (= (mod v_rangesum_~ret~0_102 v_rangesum_~cnt~0_102) 0))))) (and (= |v_ULTIMATE.start_main_~ret5~0#1_21| 0) (= v_rangesum_~cnt~0_102 0))) (<= |v_ULTIMATE.start_main_~ret~1#1_20| 2147483647) (or (not (= |v_ULTIMATE.start_main_~ret~1#1_20| |v_ULTIMATE.start_main_~ret5~0#1_21|)) (not (= |v_ULTIMATE.start_main_~ret2~0#1_20| |v_ULTIMATE.start_main_~ret~1#1_20|))))) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (= |ULTIMATE.start_main_~#x~0#1.offset| 0))' at error location [2024-11-14 03:12:30,015 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:12:30,015 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:12:30,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 14 [2024-11-14 03:12:30,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623036680] [2024-11-14 03:12:30,015 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:12:30,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-14 03:12:30,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:12:30,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-14 03:12:30,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=556, Unknown=25, NotChecked=0, Total=702 [2024-11-14 03:12:30,017 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-14 03:12:30,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:12:30,080 INFO L93 Difference]: Finished difference Result 48 states and 64 transitions. [2024-11-14 03:12:30,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-14 03:12:30,081 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 37 [2024-11-14 03:12:30,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:12:30,082 INFO L225 Difference]: With dead ends: 48 [2024-11-14 03:12:30,082 INFO L226 Difference]: Without dead ends: 31 [2024-11-14 03:12:30,083 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 18.8s TimeCoverageRelationStatistics Valid=121, Invalid=556, Unknown=25, NotChecked=0, Total=702 [2024-11-14 03:12:30,084 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:12:30,084 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 61 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:12:30,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-11-14 03:12:30,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2024-11-14 03:12:30,089 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 03:12:30,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2024-11-14 03:12:30,090 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 37 [2024-11-14 03:12:30,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:12:30,091 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2024-11-14 03:12:30,091 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-14 03:12:30,091 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2024-11-14 03:12:30,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-14 03:12:30,093 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:12:30,093 INFO L215 NwaCegarLoop]: trace histogram [30, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:12:30,115 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d2ba94-64a5-42a0-a532-36f35759788b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-14 03:12:30,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d2ba94-64a5-42a0-a532-36f35759788b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-14 03:12:30,294 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:12:30,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:12:30,294 INFO L85 PathProgramCache]: Analyzing trace with hash -979411680, now seen corresponding path program 4 times [2024-11-14 03:12:30,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:12:30,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386215080] [2024-11-14 03:12:30,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:12:30,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:12:30,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:12:30,666 INFO L134 CoverageAnalysis]: Checked inductivity of 547 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 537 trivial. 0 not checked. [2024-11-14 03:12:30,668 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:12:30,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386215080] [2024-11-14 03:12:30,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386215080] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:12:30,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [473008430] [2024-11-14 03:12:30,669 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-14 03:12:30,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:12:30,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d2ba94-64a5-42a0-a532-36f35759788b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:12:30,675 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d2ba94-64a5-42a0-a532-36f35759788b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:12:30,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d2ba94-64a5-42a0-a532-36f35759788b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-14 03:12:30,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:12:30,837 INFO L255 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 03:12:30,841 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:12:30,871 INFO L134 CoverageAnalysis]: Checked inductivity of 547 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 537 trivial. 0 not checked. [2024-11-14 03:12:30,871 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:12:31,004 INFO L134 CoverageAnalysis]: Checked inductivity of 547 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 537 trivial. 0 not checked. [2024-11-14 03:12:31,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [473008430] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:12:31,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1399105353] [2024-11-14 03:12:31,006 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2024-11-14 03:12:31,007 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:12:31,008 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:12:31,008 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:12:31,009 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:12:35,735 INFO L197 IcfgInterpreter]: Interpreting procedure rangesum with input of size 10 for LOIs [2024-11-14 03:12:36,107 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:12:50,143 WARN L286 SmtUtils]: Spent 10.90s on a formula simplification. DAG size of input: 113 DAG size of output: 65 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:13:31,688 WARN L286 SmtUtils]: Spent 36.64s 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 03:14:53,940 WARN L286 SmtUtils]: Spent 1.25m on a formula simplification. DAG size of input: 196 DAG size of output: 158 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:15:38,411 WARN L286 SmtUtils]: Spent 38.87s 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 03:15:41,056 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1650#(and (<= 1 |#StackHeapBarrier|) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (exists ((|v_ULTIMATE.start_main_~ret~1#1_23| Int) (v_rangesum_~ret~0_153 Int) (v_rangesum_~cnt~0_153 Int) (|v_ULTIMATE.start_main_~ret2~0#1_23| Int) (|v_ULTIMATE.start_main_~ret5~0#1_24| Int)) (and (<= |v_ULTIMATE.start_main_~ret~1#1_23| 2147483647) (<= |v_ULTIMATE.start_main_~ret2~0#1_23| 2147483647) (or (not (= |v_ULTIMATE.start_main_~ret~1#1_23| |v_ULTIMATE.start_main_~ret5~0#1_24|)) (not (= |v_ULTIMATE.start_main_~ret2~0#1_23| |v_ULTIMATE.start_main_~ret~1#1_23|))) (<= 0 (+ |v_ULTIMATE.start_main_~ret~1#1_23| 2147483648)) (<= 0 v_rangesum_~cnt~0_153) (<= 0 (+ |v_ULTIMATE.start_main_~ret2~0#1_23| 2147483648)) (or (and (not (= v_rangesum_~cnt~0_153 0)) (or (and (not (= (mod v_rangesum_~ret~0_153 v_rangesum_~cnt~0_153) 0)) (= (mod (+ (div v_rangesum_~ret~0_153 v_rangesum_~cnt~0_153) 1) 4294967296) (+ |v_ULTIMATE.start_main_~ret5~0#1_24| 4294967296)) (<= (+ v_rangesum_~ret~0_153 1) 0)) (and (not (= (mod v_rangesum_~ret~0_153 v_rangesum_~cnt~0_153) 0)) (= |v_ULTIMATE.start_main_~ret5~0#1_24| (mod (+ (div v_rangesum_~ret~0_153 v_rangesum_~cnt~0_153) 1) 4294967296)) (<= (+ v_rangesum_~ret~0_153 1) 0)) (and (or (< 0 (+ v_rangesum_~ret~0_153 1)) (= (mod v_rangesum_~ret~0_153 v_rangesum_~cnt~0_153) 0)) (= (mod (div v_rangesum_~ret~0_153 v_rangesum_~cnt~0_153) 4294967296) (+ |v_ULTIMATE.start_main_~ret5~0#1_24| 4294967296))) (and (= |v_ULTIMATE.start_main_~ret5~0#1_24| (mod (div v_rangesum_~ret~0_153 v_rangesum_~cnt~0_153) 4294967296)) (or (< 0 (+ v_rangesum_~ret~0_153 1)) (= (mod v_rangesum_~ret~0_153 v_rangesum_~cnt~0_153) 0))))) (and (= v_rangesum_~cnt~0_153 0) (= |v_ULTIMATE.start_main_~ret5~0#1_24| 0))) (<= 0 (+ |v_ULTIMATE.start_main_~ret5~0#1_24| 2147483648)) (<= |v_ULTIMATE.start_main_~ret5~0#1_24| 2147483647))) (exists ((|v_#memory_int_65| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_65| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_65| |ULTIMATE.start_main_~#x~0#1.base|) 36 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 36))))))' at error location [2024-11-14 03:15:41,056 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:15:41,056 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:15:41,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 7] total 13 [2024-11-14 03:15:41,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882056883] [2024-11-14 03:15:41,056 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:15:41,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-14 03:15:41,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:15:41,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-14 03:15:41,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=499, Unknown=23, NotChecked=0, Total=650 [2024-11-14 03:15:41,058 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 13 states have internal predecessors, (27), 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 03:15:41,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:15:41,114 INFO L93 Difference]: Finished difference Result 62 states and 75 transitions. [2024-11-14 03:15:41,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 03:15:41,115 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 13 states have internal predecessors, (27), 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 56 [2024-11-14 03:15:41,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:15:41,115 INFO L225 Difference]: With dead ends: 62 [2024-11-14 03:15:41,116 INFO L226 Difference]: Without dead ends: 37 [2024-11-14 03:15:41,116 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 185.1s TimeCoverageRelationStatistics Valid=128, Invalid=499, Unknown=23, NotChecked=0, Total=650 [2024-11-14 03:15:41,117 INFO L432 NwaCegarLoop]: 13 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, 65 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 03:15:41,117 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 65 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:15:41,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-11-14 03:15:41,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2024-11-14 03:15:41,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 32 states have (on average 1.09375) internal successors, (35), 32 states have internal predecessors, (35), 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 03:15:41,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2024-11-14 03:15:41,123 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 56 [2024-11-14 03:15:41,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:15:41,123 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2024-11-14 03:15:41,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 13 states have internal predecessors, (27), 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 03:15:41,124 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2024-11-14 03:15:41,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-14 03:15:41,125 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:15:41,125 INFO L215 NwaCegarLoop]: trace histogram [30, 10, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:15:41,141 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d2ba94-64a5-42a0-a532-36f35759788b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-14 03:15:41,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d2ba94-64a5-42a0-a532-36f35759788b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-14 03:15:41,326 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:15:41,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:15:41,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1795560864, now seen corresponding path program 5 times [2024-11-14 03:15:41,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:15:41,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941614973] [2024-11-14 03:15:41,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:15:41,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:15:41,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:15:41,623 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 589 trivial. 0 not checked. [2024-11-14 03:15:41,623 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:15:41,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941614973] [2024-11-14 03:15:41,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941614973] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:15:41,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1300846724] [2024-11-14 03:15:41,624 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:15:41,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:15:41,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d2ba94-64a5-42a0-a532-36f35759788b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:15:41,626 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d2ba94-64a5-42a0-a532-36f35759788b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:15:41,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d2ba94-64a5-42a0-a532-36f35759788b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-14 03:15:41,752 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-14 03:15:41,752 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:15:41,753 INFO L255 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:15:41,755 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:15:41,774 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 246 proven. 3 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2024-11-14 03:15:41,774 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:15:41,824 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 589 trivial. 0 not checked. [2024-11-14 03:15:41,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1300846724] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:15:41,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1991712879] [2024-11-14 03:15:41,826 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2024-11-14 03:15:41,827 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:15:41,827 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:15:41,827 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:15:41,827 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:15:46,560 INFO L197 IcfgInterpreter]: Interpreting procedure rangesum with input of size 10 for LOIs [2024-11-14 03:15:46,623 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:17:13,487 WARN L286 SmtUtils]: Spent 1.19m on a formula simplification. DAG size of input: 261 DAG size of output: 172 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:17:25,699 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2216#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_#memory_int_76| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_76| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_76| |ULTIMATE.start_main_~#x~0#1.base|) 36 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 36))))) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (exists ((|v_ULTIMATE.start_main_~ret2~0#1_25| Int) (|v_ULTIMATE.start_main_~ret~1#1_24| Int) (|v_ULTIMATE.start_main_~ret5~0#1_26| Int) (v_rangesum_~cnt~0_204 Int) (v_rangesum_~ret~0_204 Int)) (and (<= 0 (+ |v_ULTIMATE.start_main_~ret2~0#1_25| 2147483648)) (<= 0 (+ |v_ULTIMATE.start_main_~ret~1#1_24| 2147483648)) (<= |v_ULTIMATE.start_main_~ret~1#1_24| 2147483647) (or (not (= |v_ULTIMATE.start_main_~ret2~0#1_25| |v_ULTIMATE.start_main_~ret~1#1_24|)) (not (= |v_ULTIMATE.start_main_~ret~1#1_24| |v_ULTIMATE.start_main_~ret5~0#1_26|))) (<= 0 (+ |v_ULTIMATE.start_main_~ret5~0#1_26| 2147483648)) (<= |v_ULTIMATE.start_main_~ret2~0#1_25| 2147483647) (or (and (= |v_ULTIMATE.start_main_~ret5~0#1_26| 0) (= v_rangesum_~cnt~0_204 0)) (and (not (= v_rangesum_~cnt~0_204 0)) (or (and (not (= (mod v_rangesum_~ret~0_204 v_rangesum_~cnt~0_204) 0)) (<= (+ v_rangesum_~ret~0_204 1) 0) (= |v_ULTIMATE.start_main_~ret5~0#1_26| (mod (+ (div v_rangesum_~ret~0_204 v_rangesum_~cnt~0_204) 1) 4294967296))) (and (or (< 0 (+ v_rangesum_~ret~0_204 1)) (= (mod v_rangesum_~ret~0_204 v_rangesum_~cnt~0_204) 0)) (= (mod (div v_rangesum_~ret~0_204 v_rangesum_~cnt~0_204) 4294967296) (+ |v_ULTIMATE.start_main_~ret5~0#1_26| 4294967296))) (and (= |v_ULTIMATE.start_main_~ret5~0#1_26| (mod (div v_rangesum_~ret~0_204 v_rangesum_~cnt~0_204) 4294967296)) (or (< 0 (+ v_rangesum_~ret~0_204 1)) (= (mod v_rangesum_~ret~0_204 v_rangesum_~cnt~0_204) 0))) (and (not (= (mod v_rangesum_~ret~0_204 v_rangesum_~cnt~0_204) 0)) (<= (+ v_rangesum_~ret~0_204 1) 0) (= (+ |v_ULTIMATE.start_main_~ret5~0#1_26| 4294967296) (mod (+ (div v_rangesum_~ret~0_204 v_rangesum_~cnt~0_204) 1) 4294967296)))))) (<= 0 v_rangesum_~cnt~0_204) (<= |v_ULTIMATE.start_main_~ret5~0#1_26| 2147483647))))' at error location [2024-11-14 03:17:25,699 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:17:25,699 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:17:25,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-11-14 03:17:25,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688251932] [2024-11-14 03:17:25,700 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:17:25,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-14 03:17:25,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:17:25,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-14 03:17:25,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=353, Unknown=23, NotChecked=0, Total=462 [2024-11-14 03:17:25,702 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 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 03:17:25,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:17:25,747 INFO L93 Difference]: Finished difference Result 59 states and 67 transitions. [2024-11-14 03:17:25,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 03:17:25,748 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 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 62 [2024-11-14 03:17:25,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:17:25,749 INFO L225 Difference]: With dead ends: 59 [2024-11-14 03:17:25,749 INFO L226 Difference]: Without dead ends: 41 [2024-11-14 03:17:25,750 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 99.1s TimeCoverageRelationStatistics Valid=86, Invalid=353, Unknown=23, NotChecked=0, Total=462 [2024-11-14 03:17:25,751 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:17:25,752 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 37 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:17:25,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-11-14 03:17:25,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2024-11-14 03:17:25,762 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 03:17:25,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2024-11-14 03:17:25,764 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 62 [2024-11-14 03:17:25,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:17:25,765 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2024-11-14 03:17:25,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 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 03:17:25,766 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2024-11-14 03:17:25,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-14 03:17:25,767 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:17:25,767 INFO L215 NwaCegarLoop]: trace histogram [30, 10, 6, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:17:25,795 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d2ba94-64a5-42a0-a532-36f35759788b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-14 03:17:25,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d2ba94-64a5-42a0-a532-36f35759788b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-14 03:17:25,968 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:17:25,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:17:25,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1496611104, now seen corresponding path program 6 times [2024-11-14 03:17:25,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:17:25,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045055074] [2024-11-14 03:17:25,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:17:25,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:17:26,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:17:26,444 INFO L134 CoverageAnalysis]: Checked inductivity of 610 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 589 trivial. 0 not checked. [2024-11-14 03:17:26,444 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:17:26,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045055074] [2024-11-14 03:17:26,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045055074] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:17:26,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [276778635] [2024-11-14 03:17:26,444 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 03:17:26,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:17:26,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d2ba94-64a5-42a0-a532-36f35759788b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:17:26,447 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d2ba94-64a5-42a0-a532-36f35759788b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:17:26,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d2ba94-64a5-42a0-a532-36f35759788b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-14 03:17:26,634 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 03:17:26,634 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:17:26,637 INFO L255 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 03:17:26,639 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:17:26,667 INFO L134 CoverageAnalysis]: Checked inductivity of 610 backedges. 246 proven. 21 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2024-11-14 03:17:26,667 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:17:26,747 INFO L134 CoverageAnalysis]: Checked inductivity of 610 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 589 trivial. 0 not checked. [2024-11-14 03:17:26,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [276778635] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:17:26,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1032649741] [2024-11-14 03:17:26,749 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2024-11-14 03:17:26,749 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:17:26,749 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:17:26,749 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:17:26,749 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:17:28,232 INFO L197 IcfgInterpreter]: Interpreting procedure rangesum with input of size 10 for LOIs [2024-11-14 03:17:28,344 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:17:52,281 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2813#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_#memory_int_91| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_91| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_91| |ULTIMATE.start_main_~#x~0#1.base|) 36 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 36))))) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (exists ((|v_ULTIMATE.start_main_~ret5~0#1_28| Int) (|v_ULTIMATE.start_main_~ret2~0#1_27| Int) (|v_ULTIMATE.start_main_~ret~1#1_25| Int) (v_rangesum_~ret~0_255 Int) (v_rangesum_~cnt~0_255 Int)) (and (<= 0 (+ |v_ULTIMATE.start_main_~ret5~0#1_28| 2147483648)) (or (and (= v_rangesum_~cnt~0_255 0) (= |v_ULTIMATE.start_main_~ret5~0#1_28| 0)) (and (not (= v_rangesum_~cnt~0_255 0)) (or (and (or (= (mod v_rangesum_~ret~0_255 v_rangesum_~cnt~0_255) 0) (< 0 (+ v_rangesum_~ret~0_255 1))) (= |v_ULTIMATE.start_main_~ret5~0#1_28| (mod (div v_rangesum_~ret~0_255 v_rangesum_~cnt~0_255) 4294967296))) (and (or (= (mod v_rangesum_~ret~0_255 v_rangesum_~cnt~0_255) 0) (< 0 (+ v_rangesum_~ret~0_255 1))) (= (+ |v_ULTIMATE.start_main_~ret5~0#1_28| 4294967296) (mod (div v_rangesum_~ret~0_255 v_rangesum_~cnt~0_255) 4294967296))) (and (not (= (mod v_rangesum_~ret~0_255 v_rangesum_~cnt~0_255) 0)) (= (+ |v_ULTIMATE.start_main_~ret5~0#1_28| 4294967296) (mod (+ (div v_rangesum_~ret~0_255 v_rangesum_~cnt~0_255) 1) 4294967296)) (<= (+ v_rangesum_~ret~0_255 1) 0)) (and (not (= (mod v_rangesum_~ret~0_255 v_rangesum_~cnt~0_255) 0)) (= (mod (+ (div v_rangesum_~ret~0_255 v_rangesum_~cnt~0_255) 1) 4294967296) |v_ULTIMATE.start_main_~ret5~0#1_28|) (<= (+ v_rangesum_~ret~0_255 1) 0))))) (<= |v_ULTIMATE.start_main_~ret5~0#1_28| 2147483647) (or (not (= |v_ULTIMATE.start_main_~ret~1#1_25| |v_ULTIMATE.start_main_~ret5~0#1_28|)) (not (= |v_ULTIMATE.start_main_~ret2~0#1_27| |v_ULTIMATE.start_main_~ret~1#1_25|))) (<= 0 v_rangesum_~cnt~0_255) (<= |v_ULTIMATE.start_main_~ret2~0#1_27| 2147483647) (<= |v_ULTIMATE.start_main_~ret~1#1_25| 2147483647) (<= 0 (+ |v_ULTIMATE.start_main_~ret~1#1_25| 2147483648)) (<= 0 (+ |v_ULTIMATE.start_main_~ret2~0#1_27| 2147483648)))))' at error location [2024-11-14 03:17:52,281 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:17:52,281 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:17:52,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 12 [2024-11-14 03:17:52,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857123651] [2024-11-14 03:17:52,282 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:17:52,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-14 03:17:52,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:17:52,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-14 03:17:52,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=459, Unknown=25, NotChecked=0, Total=600 [2024-11-14 03:17:52,283 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand has 12 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 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 03:17:52,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:17:52,341 INFO L93 Difference]: Finished difference Result 62 states and 69 transitions. [2024-11-14 03:17:52,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-14 03:17:52,343 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 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 66 [2024-11-14 03:17:52,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:17:52,343 INFO L225 Difference]: With dead ends: 62 [2024-11-14 03:17:52,343 INFO L226 Difference]: Without dead ends: 44 [2024-11-14 03:17:52,344 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 177 SyntacticMatches, 5 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 24.0s TimeCoverageRelationStatistics Valid=116, Invalid=459, Unknown=25, NotChecked=0, Total=600 [2024-11-14 03:17:52,345 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:17:52,345 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 61 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:17:52,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-11-14 03:17:52,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2024-11-14 03:17:52,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 39 states have (on average 1.0769230769230769) internal successors, (42), 39 states have internal predecessors, (42), 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 03:17:52,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2024-11-14 03:17:52,351 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 66 [2024-11-14 03:17:52,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:17:52,351 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2024-11-14 03:17:52,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 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 03:17:52,352 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2024-11-14 03:17:52,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-14 03:17:52,353 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:17:52,353 INFO L215 NwaCegarLoop]: trace histogram [30, 10, 9, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:17:52,372 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d2ba94-64a5-42a0-a532-36f35759788b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-14 03:17:52,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d2ba94-64a5-42a0-a532-36f35759788b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:17:52,553 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:17:52,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:17:52,554 INFO L85 PathProgramCache]: Analyzing trace with hash 219830190, now seen corresponding path program 7 times [2024-11-14 03:17:52,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:17:52,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081207799] [2024-11-14 03:17:52,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:17:52,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:17:53,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:17:53,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [149493858] [2024-11-14 03:17:53,741 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-14 03:17:53,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:17:53,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d2ba94-64a5-42a0-a532-36f35759788b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:17:53,744 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d2ba94-64a5-42a0-a532-36f35759788b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:17:53,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d2ba94-64a5-42a0-a532-36f35759788b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-14 03:17:54,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 03:17:54,689 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 03:17:55,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 03:17:55,421 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 03:17:55,421 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 03:17:55,422 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 03:17:55,435 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d2ba94-64a5-42a0-a532-36f35759788b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-14 03:17:55,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d2ba94-64a5-42a0-a532-36f35759788b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:17:55,627 INFO L407 BasicCegarLoop]: Path program histogram: [7, 1, 1, 1] [2024-11-14 03:17:55,692 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 03:17:55,694 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 03:17:55 BoogieIcfgContainer [2024-11-14 03:17:55,694 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 03:17:55,695 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 03:17:55,695 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 03:17:55,695 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 03:17:55,696 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:10:43" (3/4) ... [2024-11-14 03:17:55,697 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-14 03:17:55,790 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d2ba94-64a5-42a0-a532-36f35759788b/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-14 03:17:55,790 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 03:17:55,790 INFO L158 Benchmark]: Toolchain (without parser) took 433479.58ms. Allocated memory was 117.4MB in the beginning and 1.1GB in the end (delta: 1.0GB). Free memory was 92.9MB in the beginning and 626.3MB in the end (delta: -533.3MB). Peak memory consumption was 473.0MB. Max. memory is 16.1GB. [2024-11-14 03:17:55,791 INFO L158 Benchmark]: CDTParser took 1.54ms. Allocated memory is still 117.4MB. Free memory is still 74.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:17:55,791 INFO L158 Benchmark]: CACSL2BoogieTranslator took 309.38ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 81.4MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 03:17:55,791 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.43ms. Allocated memory is still 117.4MB. Free memory was 81.4MB in the beginning and 80.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:17:55,791 INFO L158 Benchmark]: Boogie Preprocessor took 24.46ms. Allocated memory is still 117.4MB. Free memory was 80.2MB in the beginning and 79.1MB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 03:17:55,791 INFO L158 Benchmark]: RCFGBuilder took 550.29ms. Allocated memory is still 117.4MB. Free memory was 79.1MB in the beginning and 64.4MB in the end (delta: 14.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 03:17:55,792 INFO L158 Benchmark]: TraceAbstraction took 432456.75ms. Allocated memory was 117.4MB in the beginning and 1.1GB in the end (delta: 1.0GB). Free memory was 63.9MB in the beginning and 630.6MB in the end (delta: -566.7MB). Peak memory consumption was 439.4MB. Max. memory is 16.1GB. [2024-11-14 03:17:55,792 INFO L158 Benchmark]: Witness Printer took 94.65ms. Allocated memory is still 1.1GB. Free memory was 630.6MB in the beginning and 626.3MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 03:17:55,798 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.54ms. Allocated memory is still 117.4MB. Free memory is still 74.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 309.38ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 81.4MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.43ms. Allocated memory is still 117.4MB. Free memory was 81.4MB in the beginning and 80.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.46ms. Allocated memory is still 117.4MB. Free memory was 80.2MB in the beginning and 79.1MB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 550.29ms. Allocated memory is still 117.4MB. Free memory was 79.1MB in the beginning and 64.4MB in the end (delta: 14.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 432456.75ms. Allocated memory was 117.4MB in the beginning and 1.1GB in the end (delta: 1.0GB). Free memory was 63.9MB in the beginning and 630.6MB in the end (delta: -566.7MB). Peak memory consumption was 439.4MB. Max. memory is 16.1GB. * Witness Printer took 94.65ms. Allocated memory is still 1.1GB. Free memory was 630.6MB in the beginning and 626.3MB in the end (delta: 4.3MB). 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[10]; [L43] CALL init_nondet(x) [L16] int i; [L17] i = 0 VAL [i=0, x={3:0}] [L17] COND TRUE i < 10 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=1, x={3:0}] [L17] COND TRUE i < 10 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=2, x={3:0}] [L17] COND TRUE i < 10 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=3, x={3:0}] [L17] COND TRUE i < 10 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=4, x={3:0}] [L17] COND TRUE i < 10 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=5, x={3:0}] [L17] COND TRUE i < 10 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=6, x={3:0}] [L17] COND TRUE i < 10 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=7, x={3:0}] [L17] COND TRUE i < 10 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=8, x={3:0}] [L17] COND TRUE i < 10 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=9, x={3:0}] [L17] COND TRUE i < 10 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=10, x={3:0}] [L17] COND FALSE !(i < 10) [L43] RET init_nondet(x) [L44] int temp; [L45] int ret; [L46] int ret2; [L47] int ret5; VAL [x={3:0}] [L49] CALL, EXPR rangesum(x) VAL [\old(x)={3:0}] [L24] int i; [L25] long long ret; [L26] ret = 0 [L27] int cnt = 0; [L28] i = 0 VAL [\old(x)={3:0}, cnt=0, i=0, ret=0, x={3:0}] [L28] COND TRUE i < 10 [L29] COND FALSE !(i > 10/2) [L28] i++ VAL [\old(x)={3:0}, cnt=0, i=1, ret=0, x={3:0}] [L28] COND TRUE i < 10 [L29] COND FALSE !(i > 10/2) [L28] i++ VAL [\old(x)={3:0}, cnt=0, i=2, ret=0, x={3:0}] [L28] COND TRUE i < 10 [L29] COND FALSE !(i > 10/2) [L28] i++ VAL [\old(x)={3:0}, cnt=0, i=3, ret=0, x={3:0}] [L28] COND TRUE i < 10 [L29] COND FALSE !(i > 10/2) [L28] i++ VAL [\old(x)={3:0}, cnt=0, i=4, ret=0, x={3:0}] [L28] COND TRUE i < 10 [L29] COND FALSE !(i > 10/2) [L28] i++ VAL [\old(x)={3:0}, cnt=0, i=5, ret=0, x={3:0}] [L28] COND TRUE i < 10 [L29] COND FALSE !(i > 10/2) [L28] i++ VAL [\old(x)={3:0}, cnt=0, i=6, ret=0, x={3:0}] [L28] COND TRUE i < 10 [L29] COND TRUE i > 10/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [\old(x)={3:0}, cnt=1, i=7, ret=1, x={3:0}] [L28] COND TRUE i < 10 [L29] COND TRUE i > 10/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [\old(x)={3:0}, cnt=2, i=8, ret=-2147483647, x={3:0}] [L28] COND TRUE i < 10 [L29] COND TRUE i > 10/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [\old(x)={3:0}, cnt=3, i=9, ret=-2147483645, x={3:0}] [L28] COND TRUE i < 10 [L29] COND TRUE i > 10/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [\old(x)={3:0}, cnt=4, i=10, ret=-11, x={3:0}] [L28] COND FALSE !(i < 10) [L34] COND TRUE cnt !=0 [L35] return ret / cnt; [L49] RET, EXPR rangesum(x) VAL [x={3:0}] [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=-2, x={3:0}] [L52] CALL, EXPR rangesum(x) VAL [\old(x)={3:0}] [L24] int i; [L25] long long ret; [L26] ret = 0 [L27] int cnt = 0; [L28] i = 0 VAL [\old(x)={3:0}, cnt=0, i=0, ret=0, x={3:0}] [L28] COND TRUE i < 10 [L29] COND FALSE !(i > 10/2) [L28] i++ VAL [\old(x)={3:0}, cnt=0, i=1, ret=0, x={3:0}] [L28] COND TRUE i < 10 [L29] COND FALSE !(i > 10/2) [L28] i++ VAL [\old(x)={3:0}, cnt=0, i=2, ret=0, x={3:0}] [L28] COND TRUE i < 10 [L29] COND FALSE !(i > 10/2) [L28] i++ VAL [\old(x)={3:0}, cnt=0, i=3, ret=0, x={3:0}] [L28] COND TRUE i < 10 [L29] COND FALSE !(i > 10/2) [L28] i++ VAL [\old(x)={3:0}, cnt=0, i=4, ret=0, x={3:0}] [L28] COND TRUE i < 10 [L29] COND FALSE !(i > 10/2) [L28] i++ VAL [\old(x)={3:0}, cnt=0, i=5, ret=0, x={3:0}] [L28] COND TRUE i < 10 [L29] COND FALSE !(i > 10/2) [L28] i++ VAL [\old(x)={3:0}, cnt=0, i=6, ret=0, x={3:0}] [L28] COND TRUE i < 10 [L29] COND TRUE i > 10/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [\old(x)={3:0}, cnt=1, i=7, ret=1, x={3:0}] [L28] COND TRUE i < 10 [L29] COND TRUE i > 10/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [\old(x)={3:0}, cnt=2, i=8, ret=-2147483647, x={3:0}] [L28] COND TRUE i < 10 [L29] COND TRUE i > 10/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [\old(x)={3:0}, cnt=3, i=9, ret=-2147483645, x={3:0}] [L28] COND TRUE i < 10 [L29] COND TRUE i > 10/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [\old(x)={3:0}, cnt=4, i=10, ret=-11, x={3:0}] [L28] COND FALSE !(i < 10) [L34] COND TRUE cnt !=0 [L35] return ret / cnt; [L52] RET, EXPR rangesum(x) VAL [ret=-2, x={3:0}] [L52] ret2 = rangesum(x) [L53] EXPR x[0] [L53] temp=x[0] [L54] int i =0 ; VAL [i=0, ret2=-2, ret=-2, temp=2147483633, x={3:0}] [L54] COND TRUE i<10 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=1, ret2=-2, ret=-2, temp=2147483633, x={3:0}] [L54] COND TRUE i<10 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=2, ret2=-2, ret=-2, temp=2147483633, x={3:0}] [L54] COND TRUE i<10 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=3, ret2=-2, ret=-2, temp=2147483633, x={3:0}] [L54] COND TRUE i<10 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=4, ret2=-2, ret=-2, temp=2147483633, x={3:0}] [L54] COND TRUE i<10 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=5, ret2=-2, ret=-2, temp=2147483633, x={3:0}] [L54] COND TRUE i<10 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=6, ret2=-2, ret=-2, temp=2147483633, x={3:0}] [L54] COND TRUE i<10 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=7, ret2=-2, ret=-2, temp=2147483633, x={3:0}] [L54] COND TRUE i<10 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=8, ret2=-2, ret=-2, temp=2147483633, x={3:0}] [L54] COND TRUE i<10 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=9, ret2=-2, ret=-2, temp=2147483633, x={3:0}] [L54] COND FALSE !(i<10 -1) [L57] x[10 -1] = temp VAL [ret2=-2, ret=-2, x={3:0}] [L58] CALL, EXPR rangesum(x) VAL [\old(x)={3:0}] [L24] int i; [L25] long long ret; [L26] ret = 0 [L27] int cnt = 0; [L28] i = 0 VAL [\old(x)={3:0}, cnt=0, i=0, ret=0, x={3:0}] [L28] COND TRUE i < 10 [L29] COND FALSE !(i > 10/2) [L28] i++ VAL [\old(x)={3:0}, cnt=0, i=1, ret=0, x={3:0}] [L28] COND TRUE i < 10 [L29] COND FALSE !(i > 10/2) [L28] i++ VAL [\old(x)={3:0}, cnt=0, i=2, ret=0, x={3:0}] [L28] COND TRUE i < 10 [L29] COND FALSE !(i > 10/2) [L28] i++ VAL [\old(x)={3:0}, cnt=0, i=3, ret=0, x={3:0}] [L28] COND TRUE i < 10 [L29] COND FALSE !(i > 10/2) [L28] i++ VAL [\old(x)={3:0}, cnt=0, i=4, ret=0, x={3:0}] [L28] COND TRUE i < 10 [L29] COND FALSE !(i > 10/2) [L28] i++ VAL [\old(x)={3:0}, cnt=0, i=5, ret=0, x={3:0}] [L28] COND TRUE i < 10 [L29] COND FALSE !(i > 10/2) [L28] i++ VAL [\old(x)={3:0}, cnt=0, i=6, ret=0, x={3:0}] [L28] COND TRUE i < 10 [L29] COND TRUE i > 10/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [\old(x)={3:0}, cnt=1, i=7, ret=-2147483648, x={3:0}] [L28] COND TRUE i < 10 [L29] COND TRUE i > 10/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [\old(x)={3:0}, cnt=2, i=8, ret=-2147483646, x={3:0}] [L28] COND TRUE i < 10 [L29] COND TRUE i > 10/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [\old(x)={3:0}, cnt=3, i=9, ret=-12, x={3:0}] [L28] COND TRUE i < 10 [L29] COND TRUE i > 10/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [\old(x)={3:0}, cnt=4, i=10, ret=2147483621, x={3:0}] [L28] COND FALSE !(i < 10) [L34] COND TRUE cnt !=0 [L35] return ret / cnt; [L58] RET, EXPR rangesum(x) VAL [ret2=-2, ret=-2, x={3:0}] [L58] ret5 = rangesum(x) [L60] COND TRUE ret != ret2 || ret !=ret5 VAL [x={3:0}] [L61] reach_error() VAL [x={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 432.3s, OverallIterations: 10, TraceHistogramMax: 30, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 370 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 250 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 196 IncrementalHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 120 mSDtfsCounter, 196 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 897 GetRequests, 757 SyntacticMatches, 5 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 5 DeprecatedPredicates, 1104 ImplicationChecksByTransitivity, 400.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=9, InterpolantAutomatonStates: 66, 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, 9 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.7s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 796 NumberOfCodeBlocks, 751 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 909 ConstructedInterpolants, 0 QuantifiedInterpolants, 1061 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1619 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 23 InterpolantComputations, 3 PerfectInterpolantSequences, 5658/5851 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 03:17:56,013 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d2ba94-64a5-42a0-a532-36f35759788b/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2024-11-14 03:17:56,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d2ba94-64a5-42a0-a532-36f35759788b/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