./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/list-simple/sll2c_update_all_reverse.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ba2228-e625-4fd3-b48a-f1598af3c23f/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ba2228-e625-4fd3-b48a-f1598af3c23f/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_21ba2228-e625-4fd3-b48a-f1598af3c23f/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ba2228-e625-4fd3-b48a-f1598af3c23f/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/list-simple/sll2c_update_all_reverse.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ba2228-e625-4fd3-b48a-f1598af3c23f/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ba2228-e625-4fd3-b48a-f1598af3c23f/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4fecbd384f63aa34e01807a3a6735a322a2435f1312f0df3ed763fde7f43fe0a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:37:03,177 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:37:03,250 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ba2228-e625-4fd3-b48a-f1598af3c23f/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-14 04:37:03,255 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:37:03,256 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:37:03,280 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:37:03,280 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:37:03,281 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:37:03,281 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:37:03,281 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:37:03,281 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:37:03,282 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:37:03,282 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:37:03,282 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 04:37:03,282 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:37:03,282 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:37:03,282 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 04:37:03,282 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 04:37:03,283 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:37:03,283 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 04:37:03,283 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 04:37:03,283 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 04:37:03,284 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:37:03,284 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:37:03,284 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 04:37:03,284 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 04:37:03,284 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 04:37:03,284 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:37:03,284 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:37:03,285 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:37:03,285 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:37:03,285 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:37:03,285 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 04:37:03,285 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 04:37:03,285 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 04:37:03,285 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:37:03,286 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:37:03,286 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:37:03,286 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:37:03,286 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:37:03,286 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:37:03,286 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:37:03,287 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:37:03,287 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:37:03,287 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 04:37:03,287 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 04:37:03,287 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:37:03,287 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:37:03,288 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 04:37:03,288 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_21ba2228-e625-4fd3-b48a-f1598af3c23f/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 ! overflow) ) 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 -> 4fecbd384f63aa34e01807a3a6735a322a2435f1312f0df3ed763fde7f43fe0a [2024-11-14 04:37:03,604 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:37:03,613 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:37:03,616 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:37:03,617 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:37:03,618 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:37:03,619 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ba2228-e625-4fd3-b48a-f1598af3c23f/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/list-simple/sll2c_update_all_reverse.i Unable to find full path for "g++" [2024-11-14 04:37:05,557 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:37:06,071 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:37:06,072 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ba2228-e625-4fd3-b48a-f1598af3c23f/sv-benchmarks/c/list-simple/sll2c_update_all_reverse.i [2024-11-14 04:37:06,094 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ba2228-e625-4fd3-b48a-f1598af3c23f/bin/utaipan-verify-sOmjnqqW8E/data/7ab612488/9cf545690b654aa0b25361a52b14d3e7/FLAG863a3420b [2024-11-14 04:37:06,117 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ba2228-e625-4fd3-b48a-f1598af3c23f/bin/utaipan-verify-sOmjnqqW8E/data/7ab612488/9cf545690b654aa0b25361a52b14d3e7 [2024-11-14 04:37:06,121 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:37:06,123 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:37:06,126 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:37:06,126 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:37:06,136 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:37:06,137 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:37:06" (1/1) ... [2024-11-14 04:37:06,138 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@248cf131 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:37:06, skipping insertion in model container [2024-11-14 04:37:06,138 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:37:06" (1/1) ... [2024-11-14 04:37:06,195 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:37:06,635 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:37:06,645 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:37:06,741 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:37:06,787 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:37:06,788 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:37:06 WrapperNode [2024-11-14 04:37:06,790 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:37:06,792 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:37:06,792 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:37:06,793 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:37:06,801 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:37:06" (1/1) ... [2024-11-14 04:37:06,825 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:37:06" (1/1) ... [2024-11-14 04:37:06,860 INFO L138 Inliner]: procedures = 126, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 146 [2024-11-14 04:37:06,865 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:37:06,865 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:37:06,866 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:37:06,867 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:37:06,875 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:37:06" (1/1) ... [2024-11-14 04:37:06,875 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:37:06" (1/1) ... [2024-11-14 04:37:06,879 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:37:06" (1/1) ... [2024-11-14 04:37:06,881 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:37:06" (1/1) ... [2024-11-14 04:37:06,896 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:37:06" (1/1) ... [2024-11-14 04:37:06,902 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:37:06" (1/1) ... [2024-11-14 04:37:06,904 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:37:06" (1/1) ... [2024-11-14 04:37:06,908 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:37:06" (1/1) ... [2024-11-14 04:37:06,914 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:37:06,915 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:37:06,915 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:37:06,915 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:37:06,916 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:37:06" (1/1) ... [2024-11-14 04:37:06,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:37:06,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ba2228-e625-4fd3-b48a-f1598af3c23f/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:37:06,970 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ba2228-e625-4fd3-b48a-f1598af3c23f/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:37:06,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ba2228-e625-4fd3-b48a-f1598af3c23f/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:37:07,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 04:37:07,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 04:37:07,009 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2024-11-14 04:37:07,009 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2024-11-14 04:37:07,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-14 04:37:07,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:37:07,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-14 04:37:07,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-14 04:37:07,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 04:37:07,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 04:37:07,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:37:07,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:37:07,157 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:37:07,159 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:37:07,513 INFO L? ?]: Removed 78 outVars from TransFormulas that were not future-live. [2024-11-14 04:37:07,513 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:37:07,578 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:37:07,578 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-14 04:37:07,579 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:37:07 BoogieIcfgContainer [2024-11-14 04:37:07,579 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:37:07,582 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:37:07,582 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:37:07,588 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:37:07,588 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:37:06" (1/3) ... [2024-11-14 04:37:07,589 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bff27bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:37:07, skipping insertion in model container [2024-11-14 04:37:07,590 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:37:06" (2/3) ... [2024-11-14 04:37:07,590 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bff27bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:37:07, skipping insertion in model container [2024-11-14 04:37:07,590 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:37:07" (3/3) ... [2024-11-14 04:37:07,591 INFO L112 eAbstractionObserver]: Analyzing ICFG sll2c_update_all_reverse.i [2024-11-14 04:37:07,610 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:37:07,612 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG sll2c_update_all_reverse.i that has 2 procedures, 56 locations, 1 initial locations, 6 loop locations, and 18 error locations. [2024-11-14 04:37:07,675 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:37:07,691 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;@7b268c0d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:37:07,691 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-14 04:37:07,696 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 34 states have (on average 1.7941176470588236) internal successors, (61), 52 states have internal predecessors, (61), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 04:37:07,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-14 04:37:07,705 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:37:07,705 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:37:07,706 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-14 04:37:07,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:37:07,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1464654212, now seen corresponding path program 1 times [2024-11-14 04:37:07,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:37:07,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036067253] [2024-11-14 04:37:07,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:37:07,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:37:07,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:37:08,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:37:08,130 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:37:08,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036067253] [2024-11-14 04:37:08,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036067253] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:37:08,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:37:08,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:37:08,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982060581] [2024-11-14 04:37:08,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:37:08,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:37:08,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:37:08,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:37:08,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:37:08,166 INFO L87 Difference]: Start difference. First operand has 56 states, 34 states have (on average 1.7941176470588236) internal successors, (61), 52 states have internal predecessors, (61), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 04:37:08,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:37:08,235 INFO L93 Difference]: Finished difference Result 101 states and 118 transitions. [2024-11-14 04:37:08,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:37:08,237 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 8 [2024-11-14 04:37:08,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:37:08,244 INFO L225 Difference]: With dead ends: 101 [2024-11-14 04:37:08,244 INFO L226 Difference]: Without dead ends: 53 [2024-11-14 04:37:08,248 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 04:37:08,251 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 1 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:37:08,252 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 103 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:37:08,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-11-14 04:37:08,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 51. [2024-11-14 04:37:08,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 30 states have (on average 1.7333333333333334) internal successors, (52), 47 states have internal predecessors, (52), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 04:37:08,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 56 transitions. [2024-11-14 04:37:08,291 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 56 transitions. Word has length 8 [2024-11-14 04:37:08,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:37:08,292 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 56 transitions. [2024-11-14 04:37:08,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 04:37:08,292 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 56 transitions. [2024-11-14 04:37:08,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-14 04:37:08,293 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:37:08,293 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:37:08,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 04:37:08,294 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-14 04:37:08,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:37:08,294 INFO L85 PathProgramCache]: Analyzing trace with hash 700573728, now seen corresponding path program 1 times [2024-11-14 04:37:08,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:37:08,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248066995] [2024-11-14 04:37:08,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:37:08,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:37:08,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:37:08,513 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-14 04:37:08,513 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:37:08,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248066995] [2024-11-14 04:37:08,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248066995] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:37:08,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:37:08,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:37:08,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836565141] [2024-11-14 04:37:08,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:37:08,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:37:08,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:37:08,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:37:08,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:37:08,518 INFO L87 Difference]: Start difference. First operand 51 states and 56 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 04:37:08,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:37:08,607 INFO L93 Difference]: Finished difference Result 57 states and 63 transitions. [2024-11-14 04:37:08,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:37:08,607 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2024-11-14 04:37:08,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:37:08,609 INFO L225 Difference]: With dead ends: 57 [2024-11-14 04:37:08,609 INFO L226 Difference]: Without dead ends: 55 [2024-11-14 04:37:08,609 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:37:08,610 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 1 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:37:08,612 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 131 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:37:08,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-11-14 04:37:08,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2024-11-14 04:37:08,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 33 states have (on average 1.6666666666666667) internal successors, (55), 50 states have internal predecessors, (55), 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 04:37:08,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 61 transitions. [2024-11-14 04:37:08,623 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 61 transitions. Word has length 13 [2024-11-14 04:37:08,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:37:08,624 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 61 transitions. [2024-11-14 04:37:08,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 04:37:08,626 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 61 transitions. [2024-11-14 04:37:08,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-14 04:37:08,627 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:37:08,627 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:37:08,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 04:37:08,627 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-14 04:37:08,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:37:08,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1545892061, now seen corresponding path program 1 times [2024-11-14 04:37:08,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:37:08,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519608894] [2024-11-14 04:37:08,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:37:08,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:37:08,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:37:08,803 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 04:37:08,806 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:37:08,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519608894] [2024-11-14 04:37:08,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519608894] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:37:08,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:37:08,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:37:08,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959824692] [2024-11-14 04:37:08,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:37:08,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:37:08,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:37:08,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:37:08,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:37:08,808 INFO L87 Difference]: Start difference. First operand 55 states and 61 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 04:37:08,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:37:08,896 INFO L93 Difference]: Finished difference Result 55 states and 61 transitions. [2024-11-14 04:37:08,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:37:08,898 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2024-11-14 04:37:08,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:37:08,901 INFO L225 Difference]: With dead ends: 55 [2024-11-14 04:37:08,901 INFO L226 Difference]: Without dead ends: 51 [2024-11-14 04:37:08,901 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:37:08,902 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 34 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:37:08,902 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 36 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:37:08,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-11-14 04:37:08,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2024-11-14 04:37:08,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 33 states have (on average 1.5454545454545454) internal successors, (51), 46 states have internal predecessors, (51), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 04:37:08,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 57 transitions. [2024-11-14 04:37:08,922 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 57 transitions. Word has length 16 [2024-11-14 04:37:08,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:37:08,923 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 57 transitions. [2024-11-14 04:37:08,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 04:37:08,923 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 57 transitions. [2024-11-14 04:37:08,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-14 04:37:08,924 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:37:08,924 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:37:08,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 04:37:08,925 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-14 04:37:08,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:37:08,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1263867905, now seen corresponding path program 1 times [2024-11-14 04:37:08,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:37:08,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131607308] [2024-11-14 04:37:08,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:37:08,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:37:08,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:37:09,096 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 04:37:09,097 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:37:09,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131607308] [2024-11-14 04:37:09,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131607308] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:37:09,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:37:09,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:37:09,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650035486] [2024-11-14 04:37:09,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:37:09,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:37:09,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:37:09,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:37:09,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:37:09,102 INFO L87 Difference]: Start difference. First operand 51 states and 57 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 04:37:09,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:37:09,208 INFO L93 Difference]: Finished difference Result 69 states and 78 transitions. [2024-11-14 04:37:09,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:37:09,208 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2024-11-14 04:37:09,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:37:09,209 INFO L225 Difference]: With dead ends: 69 [2024-11-14 04:37:09,211 INFO L226 Difference]: Without dead ends: 51 [2024-11-14 04:37:09,212 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:37:09,212 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 30 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:37:09,213 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 49 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:37:09,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-11-14 04:37:09,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 50. [2024-11-14 04:37:09,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 34 states have (on average 1.4705882352941178) internal successors, (50), 45 states have internal predecessors, (50), 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 04:37:09,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 56 transitions. [2024-11-14 04:37:09,227 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 56 transitions. Word has length 19 [2024-11-14 04:37:09,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:37:09,228 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 56 transitions. [2024-11-14 04:37:09,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 04:37:09,228 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 56 transitions. [2024-11-14 04:37:09,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-14 04:37:09,229 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:37:09,229 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:37:09,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 04:37:09,230 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-14 04:37:09,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:37:09,230 INFO L85 PathProgramCache]: Analyzing trace with hash -688914329, now seen corresponding path program 1 times [2024-11-14 04:37:09,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:37:09,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072783058] [2024-11-14 04:37:09,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:37:09,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:37:09,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:37:09,447 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-14 04:37:09,447 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:37:09,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072783058] [2024-11-14 04:37:09,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072783058] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:37:09,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1217531112] [2024-11-14 04:37:09,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:37:09,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:37:09,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ba2228-e625-4fd3-b48a-f1598af3c23f/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:37:09,453 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ba2228-e625-4fd3-b48a-f1598af3c23f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:37:09,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ba2228-e625-4fd3-b48a-f1598af3c23f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 04:37:09,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:37:09,656 INFO L255 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 04:37:09,664 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:37:09,757 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-14 04:37:09,758 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:37:09,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1217531112] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:37:09,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:37:09,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-14 04:37:09,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316139167] [2024-11-14 04:37:09,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:37:09,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:37:09,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:37:09,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:37:09,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-14 04:37:09,762 INFO L87 Difference]: Start difference. First operand 50 states and 56 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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 04:37:09,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:37:09,846 INFO L93 Difference]: Finished difference Result 86 states and 95 transitions. [2024-11-14 04:37:09,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:37:09,847 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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 21 [2024-11-14 04:37:09,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:37:09,847 INFO L225 Difference]: With dead ends: 86 [2024-11-14 04:37:09,847 INFO L226 Difference]: Without dead ends: 44 [2024-11-14 04:37:09,848 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-14 04:37:09,849 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 0 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 143 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 04:37:09,850 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 143 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:37:09,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-11-14 04:37:09,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2024-11-14 04:37:09,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 31 states have (on average 1.4193548387096775) internal successors, (44), 40 states have internal predecessors, (44), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 04:37:09,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2024-11-14 04:37:09,862 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 21 [2024-11-14 04:37:09,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:37:09,864 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2024-11-14 04:37:09,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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 04:37:09,864 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2024-11-14 04:37:09,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-14 04:37:09,865 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:37:09,865 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:37:09,886 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ba2228-e625-4fd3-b48a-f1598af3c23f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 04:37:10,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ba2228-e625-4fd3-b48a-f1598af3c23f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:37:10,066 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-14 04:37:10,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:37:10,066 INFO L85 PathProgramCache]: Analyzing trace with hash -525199321, now seen corresponding path program 1 times [2024-11-14 04:37:10,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:37:10,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8644227] [2024-11-14 04:37:10,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:37:10,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:37:10,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:37:10,207 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 04:37:10,207 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:37:10,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8644227] [2024-11-14 04:37:10,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8644227] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:37:10,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:37:10,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:37:10,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275741489] [2024-11-14 04:37:10,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:37:10,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:37:10,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:37:10,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:37:10,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:37:10,209 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 04:37:10,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:37:10,308 INFO L93 Difference]: Finished difference Result 62 states and 68 transitions. [2024-11-14 04:37:10,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:37:10,309 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2024-11-14 04:37:10,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:37:10,310 INFO L225 Difference]: With dead ends: 62 [2024-11-14 04:37:10,312 INFO L226 Difference]: Without dead ends: 60 [2024-11-14 04:37:10,313 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:37:10,314 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 62 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:37:10,314 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 52 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:37:10,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2024-11-14 04:37:10,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 49. [2024-11-14 04:37:10,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 45 states have internal predecessors, (49), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 04:37:10,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 53 transitions. [2024-11-14 04:37:10,327 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 53 transitions. Word has length 20 [2024-11-14 04:37:10,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:37:10,328 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 53 transitions. [2024-11-14 04:37:10,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 04:37:10,328 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 53 transitions. [2024-11-14 04:37:10,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-14 04:37:10,329 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:37:10,330 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:37:10,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-14 04:37:10,331 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-14 04:37:10,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:37:10,332 INFO L85 PathProgramCache]: Analyzing trace with hash 2089595945, now seen corresponding path program 1 times [2024-11-14 04:37:10,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:37:10,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638358215] [2024-11-14 04:37:10,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:37:10,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:37:10,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:37:10,436 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 04:37:10,436 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:37:10,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638358215] [2024-11-14 04:37:10,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638358215] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:37:10,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:37:10,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:37:10,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350629262] [2024-11-14 04:37:10,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:37:10,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:37:10,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:37:10,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:37:10,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:37:10,437 INFO L87 Difference]: Start difference. First operand 49 states and 53 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 04:37:10,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:37:10,478 INFO L93 Difference]: Finished difference Result 49 states and 53 transitions. [2024-11-14 04:37:10,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:37:10,479 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2024-11-14 04:37:10,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:37:10,480 INFO L225 Difference]: With dead ends: 49 [2024-11-14 04:37:10,480 INFO L226 Difference]: Without dead ends: 48 [2024-11-14 04:37:10,480 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:37:10,481 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 1 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:37:10,482 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 72 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:37:10,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2024-11-14 04:37:10,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2024-11-14 04:37:10,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 36 states have (on average 1.3333333333333333) internal successors, (48), 44 states have internal predecessors, (48), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 04:37:10,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2024-11-14 04:37:10,489 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 22 [2024-11-14 04:37:10,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:37:10,489 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2024-11-14 04:37:10,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 04:37:10,489 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2024-11-14 04:37:10,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-14 04:37:10,490 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:37:10,490 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:37:10,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-14 04:37:10,491 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-14 04:37:10,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:37:10,491 INFO L85 PathProgramCache]: Analyzing trace with hash 2089599892, now seen corresponding path program 1 times [2024-11-14 04:37:10,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:37:10,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717845817] [2024-11-14 04:37:10,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:37:10,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:37:10,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:37:10,608 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 04:37:10,609 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:37:10,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717845817] [2024-11-14 04:37:10,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717845817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:37:10,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:37:10,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:37:10,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106495565] [2024-11-14 04:37:10,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:37:10,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:37:10,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:37:10,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:37:10,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:37:10,612 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 04:37:10,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:37:10,688 INFO L93 Difference]: Finished difference Result 48 states and 52 transitions. [2024-11-14 04:37:10,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:37:10,689 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2024-11-14 04:37:10,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:37:10,690 INFO L225 Difference]: With dead ends: 48 [2024-11-14 04:37:10,691 INFO L226 Difference]: Without dead ends: 47 [2024-11-14 04:37:10,692 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:37:10,692 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 13 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:37:10,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 73 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:37:10,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-11-14 04:37:10,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2024-11-14 04:37:10,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 36 states have (on average 1.3055555555555556) internal successors, (47), 43 states have internal predecessors, (47), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 04:37:10,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 51 transitions. [2024-11-14 04:37:10,705 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 51 transitions. Word has length 22 [2024-11-14 04:37:10,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:37:10,705 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 51 transitions. [2024-11-14 04:37:10,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 04:37:10,708 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2024-11-14 04:37:10,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-14 04:37:10,709 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:37:10,709 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:37:10,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-14 04:37:10,709 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-14 04:37:10,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:37:10,710 INFO L85 PathProgramCache]: Analyzing trace with hash 352964937, now seen corresponding path program 1 times [2024-11-14 04:37:10,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:37:10,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932892566] [2024-11-14 04:37:10,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:37:10,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:37:10,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:37:10,903 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 04:37:10,903 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:37:10,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932892566] [2024-11-14 04:37:10,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932892566] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:37:10,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:37:10,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 04:37:10,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721979136] [2024-11-14 04:37:10,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:37:10,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 04:37:10,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:37:10,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 04:37:10,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-14 04:37:10,906 INFO L87 Difference]: Start difference. First operand 47 states and 51 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 04:37:11,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:37:11,035 INFO L93 Difference]: Finished difference Result 57 states and 63 transitions. [2024-11-14 04:37:11,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 04:37:11,035 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2024-11-14 04:37:11,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:37:11,036 INFO L225 Difference]: With dead ends: 57 [2024-11-14 04:37:11,036 INFO L226 Difference]: Without dead ends: 56 [2024-11-14 04:37:11,036 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-14 04:37:11,037 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 42 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:37:11,037 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 93 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:37:11,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-11-14 04:37:11,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 50. [2024-11-14 04:37:11,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 39 states have (on average 1.3076923076923077) internal successors, (51), 46 states have internal predecessors, (51), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 04:37:11,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 55 transitions. [2024-11-14 04:37:11,043 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 55 transitions. Word has length 23 [2024-11-14 04:37:11,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:37:11,043 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 55 transitions. [2024-11-14 04:37:11,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 04:37:11,043 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 55 transitions. [2024-11-14 04:37:11,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-14 04:37:11,044 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:37:11,044 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:37:11,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-14 04:37:11,044 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-14 04:37:11,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:37:11,045 INFO L85 PathProgramCache]: Analyzing trace with hash 353087304, now seen corresponding path program 1 times [2024-11-14 04:37:11,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:37:11,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883351735] [2024-11-14 04:37:11,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:37:11,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:37:11,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:37:11,196 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 04:37:11,197 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:37:11,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883351735] [2024-11-14 04:37:11,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883351735] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:37:11,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:37:11,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 04:37:11,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124407710] [2024-11-14 04:37:11,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:37:11,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 04:37:11,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:37:11,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 04:37:11,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-14 04:37:11,198 INFO L87 Difference]: Start difference. First operand 50 states and 55 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 04:37:11,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:37:11,297 INFO L93 Difference]: Finished difference Result 56 states and 62 transitions. [2024-11-14 04:37:11,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:37:11,298 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2024-11-14 04:37:11,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:37:11,298 INFO L225 Difference]: With dead ends: 56 [2024-11-14 04:37:11,298 INFO L226 Difference]: Without dead ends: 54 [2024-11-14 04:37:11,299 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-14 04:37:11,299 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 62 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:37:11,300 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 67 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:37:11,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-11-14 04:37:11,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 48. [2024-11-14 04:37:11,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 44 states have internal predecessors, (49), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 04:37:11,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 53 transitions. [2024-11-14 04:37:11,307 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 53 transitions. Word has length 23 [2024-11-14 04:37:11,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:37:11,307 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 53 transitions. [2024-11-14 04:37:11,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 04:37:11,307 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 53 transitions. [2024-11-14 04:37:11,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-14 04:37:11,308 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:37:11,308 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:37:11,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-14 04:37:11,308 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-14 04:37:11,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:37:11,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1735642796, now seen corresponding path program 1 times [2024-11-14 04:37:11,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:37:11,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556588614] [2024-11-14 04:37:11,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:37:11,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:37:11,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:37:11,491 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 04:37:11,491 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:37:11,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556588614] [2024-11-14 04:37:11,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556588614] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:37:11,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:37:11,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 04:37:11,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96546334] [2024-11-14 04:37:11,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:37:11,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:37:11,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:37:11,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:37:11,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:37:11,493 INFO L87 Difference]: Start difference. First operand 48 states and 53 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 04:37:11,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:37:11,618 INFO L93 Difference]: Finished difference Result 83 states and 93 transitions. [2024-11-14 04:37:11,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:37:11,619 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 29 [2024-11-14 04:37:11,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:37:11,620 INFO L225 Difference]: With dead ends: 83 [2024-11-14 04:37:11,620 INFO L226 Difference]: Without dead ends: 55 [2024-11-14 04:37:11,621 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-14 04:37:11,621 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 42 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:37:11,622 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 69 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:37:11,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-11-14 04:37:11,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 49. [2024-11-14 04:37:11,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 40 states have (on average 1.25) internal successors, (50), 45 states have internal predecessors, (50), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 04:37:11,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 54 transitions. [2024-11-14 04:37:11,638 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 54 transitions. Word has length 29 [2024-11-14 04:37:11,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:37:11,639 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 54 transitions. [2024-11-14 04:37:11,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 04:37:11,639 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 54 transitions. [2024-11-14 04:37:11,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-14 04:37:11,640 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:37:11,640 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:37:11,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-14 04:37:11,640 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-14 04:37:11,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:37:11,641 INFO L85 PathProgramCache]: Analyzing trace with hash -627728782, now seen corresponding path program 1 times [2024-11-14 04:37:11,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:37:11,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192924447] [2024-11-14 04:37:11,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:37:11,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:37:11,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:37:12,099 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 04:37:12,100 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:37:12,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192924447] [2024-11-14 04:37:12,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192924447] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:37:12,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [554754533] [2024-11-14 04:37:12,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:37:12,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:37:12,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ba2228-e625-4fd3-b48a-f1598af3c23f/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:37:12,105 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ba2228-e625-4fd3-b48a-f1598af3c23f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:37:12,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ba2228-e625-4fd3-b48a-f1598af3c23f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 04:37:12,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:37:12,299 INFO L255 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 04:37:12,302 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:37:12,453 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-14 04:37:12,453 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:37:12,594 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-14 04:37:12,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [554754533] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:37:12,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [248532455] [2024-11-14 04:37:12,628 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2024-11-14 04:37:12,628 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:37:12,632 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:37:12,638 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:37:12,639 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:37:14,329 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 43 for LOIs [2024-11-14 04:37:14,395 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:37:27,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [248532455] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:37:27,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:37:27,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [8, 7, 7] total 28 [2024-11-14 04:37:27,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598982004] [2024-11-14 04:37:27,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:37:27,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-14 04:37:27,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:37:27,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-14 04:37:27,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=633, Unknown=6, NotChecked=0, Total=756 [2024-11-14 04:37:27,754 INFO L87 Difference]: Start difference. First operand 49 states and 54 transitions. Second operand has 18 states, 14 states have (on average 1.5) internal successors, (21), 14 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 04:37:35,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:37:37,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:37:40,262 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:37:42,537 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:37:44,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:37:46,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:37:48,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:37:48,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:37:48,990 INFO L93 Difference]: Finished difference Result 49 states and 54 transitions. [2024-11-14 04:37:48,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-14 04:37:48,990 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 14 states have (on average 1.5) internal successors, (21), 14 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 32 [2024-11-14 04:37:48,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:37:48,991 INFO L225 Difference]: With dead ends: 49 [2024-11-14 04:37:48,991 INFO L226 Difference]: Without dead ends: 48 [2024-11-14 04:37:48,992 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 70 SyntacticMatches, 6 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 296 ImplicationChecksByTransitivity, 18.7s TimeCoverageRelationStatistics Valid=170, Invalid=941, Unknown=11, NotChecked=0, Total=1122 [2024-11-14 04:37:48,992 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 9 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 4 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:37:48,993 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 151 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 362 Invalid, 9 Unknown, 0 Unchecked, 16.1s Time] [2024-11-14 04:37:48,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2024-11-14 04:37:49,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 45. [2024-11-14 04:37:49,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 37 states have (on average 1.2162162162162162) internal successors, (45), 41 states have internal predecessors, (45), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 04:37:49,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2024-11-14 04:37:49,002 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 32 [2024-11-14 04:37:49,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:37:49,003 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2024-11-14 04:37:49,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 14 states have (on average 1.5) internal successors, (21), 14 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 04:37:49,003 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2024-11-14 04:37:49,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-14 04:37:49,004 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:37:49,004 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:37:49,020 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ba2228-e625-4fd3-b48a-f1598af3c23f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-14 04:37:49,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ba2228-e625-4fd3-b48a-f1598af3c23f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-14 04:37:49,208 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-14 04:37:49,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:37:49,208 INFO L85 PathProgramCache]: Analyzing trace with hash -2070018038, now seen corresponding path program 1 times [2024-11-14 04:37:49,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:37:49,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074547852] [2024-11-14 04:37:49,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:37:49,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:37:49,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:37:49,293 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 04:37:49,293 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:37:49,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074547852] [2024-11-14 04:37:49,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074547852] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:37:49,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:37:49,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:37:49,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968862080] [2024-11-14 04:37:49,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:37:49,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:37:49,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:37:49,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:37:49,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:37:49,296 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 04:37:49,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:37:49,342 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2024-11-14 04:37:49,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:37:49,343 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 34 [2024-11-14 04:37:49,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:37:49,344 INFO L225 Difference]: With dead ends: 45 [2024-11-14 04:37:49,345 INFO L226 Difference]: Without dead ends: 44 [2024-11-14 04:37:49,346 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:37:49,347 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 1 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:37:49,347 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 62 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:37:49,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-11-14 04:37:49,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2024-11-14 04:37:49,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 37 states have (on average 1.1891891891891893) internal successors, (44), 40 states have internal predecessors, (44), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 04:37:49,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2024-11-14 04:37:49,363 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 34 [2024-11-14 04:37:49,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:37:49,364 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2024-11-14 04:37:49,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 04:37:49,364 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2024-11-14 04:37:49,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-14 04:37:49,365 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:37:49,365 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:37:49,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-14 04:37:49,365 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-14 04:37:49,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:37:49,366 INFO L85 PathProgramCache]: Analyzing trace with hash 254038252, now seen corresponding path program 1 times [2024-11-14 04:37:49,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:37:49,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144898866] [2024-11-14 04:37:49,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:37:49,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:37:49,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:37:49,561 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 04:37:49,562 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:37:49,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144898866] [2024-11-14 04:37:49,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144898866] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:37:49,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [77484986] [2024-11-14 04:37:49,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:37:49,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:37:49,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ba2228-e625-4fd3-b48a-f1598af3c23f/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:37:49,566 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ba2228-e625-4fd3-b48a-f1598af3c23f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:37:49,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ba2228-e625-4fd3-b48a-f1598af3c23f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 04:37:49,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:37:49,751 INFO L255 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 04:37:49,753 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:37:49,819 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-14 04:37:49,820 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:37:49,903 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-14 04:37:49,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [77484986] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:37:49,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [722163275] [2024-11-14 04:37:49,908 INFO L159 IcfgInterpreter]: Started Sifa with 30 locations of interest [2024-11-14 04:37:49,908 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:37:49,909 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:37:49,909 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:37:49,909 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:37:50,847 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 43 for LOIs [2024-11-14 04:37:50,880 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:38:02,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [722163275] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:38:02,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:38:02,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [6, 6, 6] total 27 [2024-11-14 04:38:02,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892539411] [2024-11-14 04:38:02,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:38:02,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-14 04:38:02,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:38:02,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-14 04:38:02,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=589, Unknown=8, NotChecked=0, Total=702 [2024-11-14 04:38:02,067 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand has 22 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 18 states have internal predecessors, (29), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 04:38:05,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:38:07,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:38:10,329 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:38:12,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:38:14,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:38:16,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:38:27,462 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:38:29,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:38:37,976 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:38:40,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:38:42,263 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:38:44,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:38:46,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:38:48,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:38:50,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:38:51,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:38:51,006 INFO L93 Difference]: Finished difference Result 68 states and 77 transitions. [2024-11-14 04:38:51,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-14 04:38:51,007 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 18 states have internal predecessors, (29), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 35 [2024-11-14 04:38:51,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:38:51,008 INFO L225 Difference]: With dead ends: 68 [2024-11-14 04:38:51,008 INFO L226 Difference]: Without dead ends: 55 [2024-11-14 04:38:51,009 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 79 SyntacticMatches, 5 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 27.1s TimeCoverageRelationStatistics Valid=208, Invalid=1105, Unknown=19, NotChecked=0, Total=1332 [2024-11-14 04:38:51,009 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 50 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 5 mSolverCounterUnsat, 24 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 24 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:38:51,010 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 103 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 498 Invalid, 24 Unknown, 0 Unchecked, 33.1s Time] [2024-11-14 04:38:51,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-11-14 04:38:51,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 45. [2024-11-14 04:38:51,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 38 states have (on average 1.1842105263157894) internal successors, (45), 41 states have internal predecessors, (45), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 04:38:51,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2024-11-14 04:38:51,018 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 35 [2024-11-14 04:38:51,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:38:51,019 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2024-11-14 04:38:51,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 18 states have internal predecessors, (29), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 04:38:51,019 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2024-11-14 04:38:51,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-14 04:38:51,020 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:38:51,020 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:38:51,045 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ba2228-e625-4fd3-b48a-f1598af3c23f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-14 04:38:51,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ba2228-e625-4fd3-b48a-f1598af3c23f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-14 04:38:51,221 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-14 04:38:51,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:38:51,221 INFO L85 PathProgramCache]: Analyzing trace with hash 253950385, now seen corresponding path program 1 times [2024-11-14 04:38:51,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:38:51,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713381251] [2024-11-14 04:38:51,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:38:51,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:38:51,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:38:51,398 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-14 04:38:51,398 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:38:51,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713381251] [2024-11-14 04:38:51,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713381251] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:38:51,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1018905432] [2024-11-14 04:38:51,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:38:51,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:38:51,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ba2228-e625-4fd3-b48a-f1598af3c23f/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:38:51,401 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ba2228-e625-4fd3-b48a-f1598af3c23f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:38:51,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ba2228-e625-4fd3-b48a-f1598af3c23f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 04:38:51,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:38:51,582 INFO L255 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 04:38:51,585 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:38:51,658 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-14 04:38:51,658 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:38:51,740 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-14 04:38:51,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1018905432] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:38:51,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1634583757] [2024-11-14 04:38:51,742 INFO L159 IcfgInterpreter]: Started Sifa with 30 locations of interest [2024-11-14 04:38:51,744 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:38:51,745 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:38:51,745 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:38:51,745 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:38:52,592 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 43 for LOIs [2024-11-14 04:38:52,629 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:39:05,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1634583757] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:39:05,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:39:05,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [6, 6, 6] total 31 [2024-11-14 04:39:05,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565833996] [2024-11-14 04:39:05,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:39:05,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-14 04:39:05,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:39:05,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-14 04:39:05,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=760, Unknown=9, NotChecked=0, Total=930 [2024-11-14 04:39:05,743 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand has 23 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 19 states have internal predecessors, (29), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 04:39:11,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:39:13,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:39:15,794 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:39:18,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:39:20,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:39:22,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:39:32,965 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:39:35,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:39:43,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:39:45,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:39:47,908 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:39:50,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:39:52,142 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:39:54,262 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:39:56,360 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:39:58,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:40:00,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:40:00,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:40:00,746 INFO L93 Difference]: Finished difference Result 58 states and 65 transitions. [2024-11-14 04:40:00,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-14 04:40:00,747 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 19 states have internal predecessors, (29), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 35 [2024-11-14 04:40:00,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:40:00,747 INFO L225 Difference]: With dead ends: 58 [2024-11-14 04:40:00,747 INFO L226 Difference]: Without dead ends: 57 [2024-11-14 04:40:00,748 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 76 SyntacticMatches, 5 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 355 ImplicationChecksByTransitivity, 31.3s TimeCoverageRelationStatistics Valid=288, Invalid=1331, Unknown=21, NotChecked=0, Total=1640 [2024-11-14 04:40:00,749 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 50 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 5 mSolverCounterUnsat, 25 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 25 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.9s IncrementalHoareTripleChecker+Time [2024-11-14 04:40:00,749 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 66 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 500 Invalid, 25 Unknown, 0 Unchecked, 36.9s Time] [2024-11-14 04:40:00,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2024-11-14 04:40:00,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 47. [2024-11-14 04:40:00,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 40 states have (on average 1.175) internal successors, (47), 43 states have internal predecessors, (47), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 04:40:00,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 51 transitions. [2024-11-14 04:40:00,756 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 51 transitions. Word has length 35 [2024-11-14 04:40:00,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:40:00,757 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 51 transitions. [2024-11-14 04:40:00,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 19 states have internal predecessors, (29), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 04:40:00,757 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2024-11-14 04:40:00,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-14 04:40:00,757 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:40:00,758 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:40:00,775 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ba2228-e625-4fd3-b48a-f1598af3c23f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-14 04:40:00,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ba2228-e625-4fd3-b48a-f1598af3c23f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-14 04:40:00,958 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-14 04:40:00,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:40:00,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1998717379, now seen corresponding path program 1 times [2024-11-14 04:40:00,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:40:00,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345536978] [2024-11-14 04:40:00,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:40:00,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:40:00,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:40:01,051 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-14 04:40:01,052 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:40:01,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345536978] [2024-11-14 04:40:01,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345536978] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:40:01,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:40:01,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:40:01,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843862598] [2024-11-14 04:40:01,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:40:01,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:40:01,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:40:01,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:40:01,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:40:01,055 INFO L87 Difference]: Start difference. First operand 47 states and 51 transitions. Second operand has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 04:40:01,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:40:01,109 INFO L93 Difference]: Finished difference Result 47 states and 51 transitions. [2024-11-14 04:40:01,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:40:01,110 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 38 [2024-11-14 04:40:01,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:40:01,110 INFO L225 Difference]: With dead ends: 47 [2024-11-14 04:40:01,110 INFO L226 Difference]: Without dead ends: 46 [2024-11-14 04:40:01,110 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:40:01,111 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 7 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:40:01,111 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 63 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:40:01,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-11-14 04:40:01,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-11-14 04:40:01,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 40 states have (on average 1.15) internal successors, (46), 42 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 04:40:01,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2024-11-14 04:40:01,118 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 38 [2024-11-14 04:40:01,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:40:01,118 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2024-11-14 04:40:01,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 04:40:01,119 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2024-11-14 04:40:01,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-14 04:40:01,120 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:40:01,120 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:40:01,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-14 04:40:01,120 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-14 04:40:01,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:40:01,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1998629512, now seen corresponding path program 1 times [2024-11-14 04:40:01,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:40:01,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753348031] [2024-11-14 04:40:01,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:40:01,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:40:01,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:40:01,267 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-14 04:40:01,267 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:40:01,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753348031] [2024-11-14 04:40:01,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753348031] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:40:01,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [258767060] [2024-11-14 04:40:01,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:40:01,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:40:01,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ba2228-e625-4fd3-b48a-f1598af3c23f/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:40:01,270 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ba2228-e625-4fd3-b48a-f1598af3c23f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:40:01,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ba2228-e625-4fd3-b48a-f1598af3c23f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 04:40:01,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:40:01,430 INFO L255 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 04:40:01,432 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:40:01,473 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-14 04:40:01,473 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:40:01,528 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-14 04:40:01,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [258767060] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:40:01,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1235891352] [2024-11-14 04:40:01,530 INFO L159 IcfgInterpreter]: Started Sifa with 30 locations of interest [2024-11-14 04:40:01,531 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:40:01,531 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:40:01,531 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:40:01,531 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:40:02,081 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 43 for LOIs [2024-11-14 04:40:02,099 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:40:19,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1235891352] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:40:19,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:40:19,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [6, 6, 6] total 28 [2024-11-14 04:40:19,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173050292] [2024-11-14 04:40:19,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:40:19,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-14 04:40:19,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:40:19,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-14 04:40:19,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=630, Unknown=11, NotChecked=0, Total=756 [2024-11-14 04:40:19,154 INFO L87 Difference]: Start difference. First operand 46 states and 50 transitions. Second operand has 23 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 19 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 04:40:31,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:40:33,263 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:40:35,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:40:38,056 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:40:40,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:40:42,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:40:44,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:40:46,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:40:55,142 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:40:57,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:40:59,507 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:41:01,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:41:03,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:41:06,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:41:08,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:41:10,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:41:10,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:41:10,487 INFO L93 Difference]: Finished difference Result 56 states and 63 transitions. [2024-11-14 04:41:10,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-14 04:41:10,488 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 19 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 38 [2024-11-14 04:41:10,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:41:10,489 INFO L225 Difference]: With dead ends: 56 [2024-11-14 04:41:10,489 INFO L226 Difference]: Without dead ends: 55 [2024-11-14 04:41:10,489 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 87 SyntacticMatches, 5 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 32.9s TimeCoverageRelationStatistics Valid=206, Invalid=1105, Unknown=21, NotChecked=0, Total=1332 [2024-11-14 04:41:10,490 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 31 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 4 mSolverCounterUnsat, 22 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 22 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.5s IncrementalHoareTripleChecker+Time [2024-11-14 04:41:10,490 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 55 Invalid, 559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 533 Invalid, 22 Unknown, 0 Unchecked, 35.5s Time] [2024-11-14 04:41:10,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-11-14 04:41:10,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 47. [2024-11-14 04:41:10,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 41 states have (on average 1.170731707317073) internal successors, (48), 43 states have internal predecessors, (48), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 04:41:10,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 52 transitions. [2024-11-14 04:41:10,498 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 52 transitions. Word has length 38 [2024-11-14 04:41:10,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:41:10,500 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 52 transitions. [2024-11-14 04:41:10,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 19 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 04:41:10,500 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 52 transitions. [2024-11-14 04:41:10,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-14 04:41:10,501 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:41:10,501 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:41:10,525 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ba2228-e625-4fd3-b48a-f1598af3c23f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-14 04:41:10,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ba2228-e625-4fd3-b48a-f1598af3c23f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-14 04:41:10,702 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-14 04:41:10,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:41:10,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1830696743, now seen corresponding path program 1 times [2024-11-14 04:41:10,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:41:10,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090397384] [2024-11-14 04:41:10,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:41:10,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:41:10,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:41:10,812 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 04:41:10,812 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:41:10,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090397384] [2024-11-14 04:41:10,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090397384] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:41:10,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1639344130] [2024-11-14 04:41:10,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:41:10,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:41:10,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ba2228-e625-4fd3-b48a-f1598af3c23f/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:41:10,814 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ba2228-e625-4fd3-b48a-f1598af3c23f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:41:10,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ba2228-e625-4fd3-b48a-f1598af3c23f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-14 04:41:10,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:41:10,992 INFO L255 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 04:41:10,994 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:41:11,055 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 04:41:11,056 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:41:11,128 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 04:41:11,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1639344130] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:41:11,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1083070215] [2024-11-14 04:41:11,130 INFO L159 IcfgInterpreter]: Started Sifa with 33 locations of interest [2024-11-14 04:41:11,130 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:41:11,131 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:41:11,131 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:41:11,131 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:41:11,760 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 43 for LOIs [2024-11-14 04:41:11,787 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:41:33,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1083070215] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:41:33,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:41:33,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [6, 6, 6] total 33 [2024-11-14 04:41:33,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200806243] [2024-11-14 04:41:33,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:41:33,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-14 04:41:33,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:41:33,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-14 04:41:33,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=866, Unknown=13, NotChecked=0, Total=1056 [2024-11-14 04:41:33,441 INFO L87 Difference]: Start difference. First operand 47 states and 52 transitions. Second operand has 25 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 21 states have internal predecessors, (33), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 04:41:41,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:41:43,420 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:41:48,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:41:50,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:41:52,929 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:41:55,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:42:05,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:42:08,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:42:16,537 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:42:18,769 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:42:20,888 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:42:23,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:42:25,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:42:27,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:42:29,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:42:31,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:42:33,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:42:36,064 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:42:38,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:42:40,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:42:42,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:42:42,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:42:42,747 INFO L93 Difference]: Finished difference Result 65 states and 73 transitions. [2024-11-14 04:42:42,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-14 04:42:42,747 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 21 states have internal predecessors, (33), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 39 [2024-11-14 04:42:42,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:42:42,748 INFO L225 Difference]: With dead ends: 65 [2024-11-14 04:42:42,748 INFO L226 Difference]: Without dead ends: 63 [2024-11-14 04:42:42,749 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 86 SyntacticMatches, 6 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 397 ImplicationChecksByTransitivity, 44.6s TimeCoverageRelationStatistics Valid=304, Invalid=1477, Unknown=25, NotChecked=0, Total=1806 [2024-11-14 04:42:42,749 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 40 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 6 mSolverCounterUnsat, 30 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 30 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.4s IncrementalHoareTripleChecker+Time [2024-11-14 04:42:42,750 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 47 Invalid, 753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 717 Invalid, 30 Unknown, 0 Unchecked, 46.4s Time] [2024-11-14 04:42:42,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-11-14 04:42:42,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 53. [2024-11-14 04:42:42,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 47 states have (on average 1.148936170212766) internal successors, (54), 49 states have internal predecessors, (54), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 04:42:42,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 58 transitions. [2024-11-14 04:42:42,758 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 58 transitions. Word has length 39 [2024-11-14 04:42:42,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:42:42,758 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 58 transitions. [2024-11-14 04:42:42,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 21 states have internal predecessors, (33), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 04:42:42,758 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 58 transitions. [2024-11-14 04:42:42,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-14 04:42:42,759 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:42:42,759 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:42:42,780 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ba2228-e625-4fd3-b48a-f1598af3c23f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-14 04:42:42,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ba2228-e625-4fd3-b48a-f1598af3c23f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-14 04:42:42,959 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-14 04:42:42,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:42:42,960 INFO L85 PathProgramCache]: Analyzing trace with hash -516502189, now seen corresponding path program 1 times [2024-11-14 04:42:42,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:42:42,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280313324] [2024-11-14 04:42:42,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:42:42,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:42:42,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:42:43,090 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 04:42:43,090 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:42:43,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280313324] [2024-11-14 04:42:43,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280313324] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:42:43,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2120037197] [2024-11-14 04:42:43,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:42:43,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:42:43,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ba2228-e625-4fd3-b48a-f1598af3c23f/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:42:43,093 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ba2228-e625-4fd3-b48a-f1598af3c23f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:42:43,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ba2228-e625-4fd3-b48a-f1598af3c23f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-14 04:42:43,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:42:43,276 INFO L255 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 04:42:43,278 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:42:43,328 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-14 04:42:43,328 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:42:43,390 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-14 04:42:43,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2120037197] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:42:43,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [211163744] [2024-11-14 04:42:43,392 INFO L159 IcfgInterpreter]: Started Sifa with 33 locations of interest [2024-11-14 04:42:43,392 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:42:43,393 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:42:43,393 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:42:43,393 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:42:44,227 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 43 for LOIs [2024-11-14 04:42:44,255 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:43:07,187 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4221#(and (<= |ULTIMATE.start_main_~len~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~i~0#1|) (exists ((|v_ULTIMATE.start_sll_circular_get_data_at_~head#1.offset_49| Int) (|v_ULTIMATE.start_sll_circular_get_data_at_~head#1.base_49| Int)) (and (= |ULTIMATE.start_sll_circular_get_data_at_~head#1.base| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_get_data_at_~head#1.base_49|) |v_ULTIMATE.start_sll_circular_get_data_at_~head#1.offset_49|)) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_sll_circular_get_data_at_~head#1.base_49|) |v_ULTIMATE.start_sll_circular_get_data_at_~head#1.offset_49|) |ULTIMATE.start_sll_circular_get_data_at_~head#1.offset|))))' at error location [2024-11-14 04:43:07,187 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:43:07,187 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:43:07,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 7 [2024-11-14 04:43:07,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037909287] [2024-11-14 04:43:07,188 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 04:43:07,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 04:43:07,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:43:07,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 04:43:07,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=866, Unknown=14, NotChecked=0, Total=992 [2024-11-14 04:43:07,189 INFO L87 Difference]: Start difference. First operand 53 states and 58 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-14 04:43:07,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:43:07,420 INFO L93 Difference]: Finished difference Result 84 states and 93 transitions. [2024-11-14 04:43:07,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 04:43:07,421 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 45 [2024-11-14 04:43:07,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:43:07,421 INFO L225 Difference]: With dead ends: 84 [2024-11-14 04:43:07,421 INFO L226 Difference]: Without dead ends: 57 [2024-11-14 04:43:07,422 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 104 SyntacticMatches, 7 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 271 ImplicationChecksByTransitivity, 23.1s TimeCoverageRelationStatistics Valid=150, Invalid=1168, Unknown=14, NotChecked=0, Total=1332 [2024-11-14 04:43:07,422 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 59 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:43:07,422 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 86 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:43:07,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2024-11-14 04:43:07,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2024-11-14 04:43:07,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 51 states have (on average 1.1568627450980393) internal successors, (59), 53 states have internal predecessors, (59), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 04:43:07,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 63 transitions. [2024-11-14 04:43:07,432 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 63 transitions. Word has length 45 [2024-11-14 04:43:07,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:43:07,433 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 63 transitions. [2024-11-14 04:43:07,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-14 04:43:07,433 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 63 transitions. [2024-11-14 04:43:07,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-14 04:43:07,433 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:43:07,434 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:43:07,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ba2228-e625-4fd3-b48a-f1598af3c23f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-14 04:43:07,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ba2228-e625-4fd3-b48a-f1598af3c23f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:43:07,634 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-14 04:43:07,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:43:07,635 INFO L85 PathProgramCache]: Analyzing trace with hash 401859048, now seen corresponding path program 2 times [2024-11-14 04:43:07,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:43:07,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490855752] [2024-11-14 04:43:07,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:43:07,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:43:07,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:43:07,800 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-14 04:43:07,801 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:43:07,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490855752] [2024-11-14 04:43:07,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490855752] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:43:07,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1120787689] [2024-11-14 04:43:07,801 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 04:43:07,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:43:07,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ba2228-e625-4fd3-b48a-f1598af3c23f/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:43:07,804 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ba2228-e625-4fd3-b48a-f1598af3c23f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:43:07,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ba2228-e625-4fd3-b48a-f1598af3c23f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-14 04:43:07,978 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-14 04:43:07,978 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:43:07,981 INFO L255 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 04:43:07,985 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:43:08,091 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-14 04:43:08,091 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:43:08,201 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-14 04:43:08,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1120787689] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:43:08,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [640606782] [2024-11-14 04:43:08,203 INFO L159 IcfgInterpreter]: Started Sifa with 33 locations of interest [2024-11-14 04:43:08,204 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:43:08,204 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:43:08,204 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:43:08,204 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:43:09,000 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 43 for LOIs [2024-11-14 04:43:09,046 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:43:32,744 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4754#(and (<= |ULTIMATE.start_main_~len~0#1| 2147483647) (exists ((|v_ULTIMATE.start_sll_circular_get_data_at_~head#1.base_68| Int) (|v_ULTIMATE.start_sll_circular_get_data_at_~head#1.offset_68| Int)) (and (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_get_data_at_~head#1.base_68|) |v_ULTIMATE.start_sll_circular_get_data_at_~head#1.offset_68|) |ULTIMATE.start_sll_circular_get_data_at_~head#1.base|) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_sll_circular_get_data_at_~head#1.base_68|) |v_ULTIMATE.start_sll_circular_get_data_at_~head#1.offset_68|) |ULTIMATE.start_sll_circular_get_data_at_~head#1.offset|))) (<= 0 |ULTIMATE.start_main_~i~0#1|))' at error location [2024-11-14 04:43:32,744 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:43:32,744 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:43:32,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 13 [2024-11-14 04:43:32,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712736236] [2024-11-14 04:43:32,744 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 04:43:32,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-14 04:43:32,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:43:32,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-14 04:43:32,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=1292, Unknown=13, NotChecked=0, Total=1482 [2024-11-14 04:43:32,745 INFO L87 Difference]: Start difference. First operand 57 states and 63 transitions. Second operand has 13 states, 13 states have (on average 8.384615384615385) internal successors, (109), 13 states have internal predecessors, (109), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-14 04:43:32,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:43:32,944 INFO L93 Difference]: Finished difference Result 67 states and 77 transitions. [2024-11-14 04:43:32,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-14 04:43:32,945 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.384615384615385) internal successors, (109), 13 states have internal predecessors, (109), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 51 [2024-11-14 04:43:32,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:43:32,945 INFO L225 Difference]: With dead ends: 67 [2024-11-14 04:43:32,945 INFO L226 Difference]: Without dead ends: 0 [2024-11-14 04:43:32,946 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 119 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 470 ImplicationChecksByTransitivity, 23.9s TimeCoverageRelationStatistics Valid=204, Invalid=1505, Unknown=13, NotChecked=0, Total=1722 [2024-11-14 04:43:32,946 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 8 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:43:32,947 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 94 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:43:32,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-14 04:43:32,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-14 04:43:32,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:43:32,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-14 04:43:32,947 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51 [2024-11-14 04:43:32,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:43:32,947 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-14 04:43:32,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.384615384615385) internal successors, (109), 13 states have internal predecessors, (109), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-14 04:43:32,948 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-14 04:43:32,948 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-14 04:43:32,953 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2024-11-14 04:43:32,954 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2024-11-14 04:43:32,954 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2024-11-14 04:43:32,954 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2024-11-14 04:43:32,955 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2024-11-14 04:43:32,955 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2024-11-14 04:43:32,955 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2024-11-14 04:43:32,955 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2024-11-14 04:43:32,955 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 18 remaining) [2024-11-14 04:43:32,955 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 18 remaining) [2024-11-14 04:43:32,955 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2024-11-14 04:43:32,955 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2024-11-14 04:43:32,956 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2024-11-14 04:43:32,956 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2024-11-14 04:43:32,956 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2024-11-14 04:43:32,956 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2024-11-14 04:43:32,956 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2024-11-14 04:43:32,956 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2024-11-14 04:43:32,977 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ba2228-e625-4fd3-b48a-f1598af3c23f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-14 04:43:33,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ba2228-e625-4fd3-b48a-f1598af3c23f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:43:33,163 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:43:33,165 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-14 04:43:33,967 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 04:43:33,977 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-14 04:43:33,979 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~s~0!offset [2024-11-14 04:43:33,979 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-14 04:43:33,980 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~s~0!offset [2024-11-14 04:43:33,986 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-14 04:43:33,986 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~s~0!offset [2024-11-14 04:43:33,987 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-14 04:43:33,987 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~head~0!offset [2024-11-14 04:43:33,988 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~last~0!offset [2024-11-14 04:43:33,988 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-14 04:43:33,988 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-14 04:43:33,988 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 04:43:33,988 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 04:43:33,990 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 04:43:33,990 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 04:43:33,990 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 04:43:33,990 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 04:43:33,990 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-14 04:43:33,990 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-14 04:43:33,990 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-14 04:43:33,990 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-14 04:43:33,990 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-14 04:43:33,990 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-14 04:43:33,991 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-14 04:43:33,991 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-14 04:43:33,991 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-14 04:43:33,991 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~head~0!offset [2024-11-14 04:43:33,991 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~last~0!offset [2024-11-14 04:43:33,992 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-14 04:43:33,992 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~i~0 [2024-11-14 04:43:33,994 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~len~0 [2024-11-14 04:43:33,994 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~s~0!offset [2024-11-14 04:43:33,994 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-14 04:43:33,994 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~len~0 [2024-11-14 04:43:33,995 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~i~0 [2024-11-14 04:43:33,995 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~i~0 [2024-11-14 04:43:33,995 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~s~0!offset [2024-11-14 04:43:34,004 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-14 04:43:34,004 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~i~0 [2024-11-14 04:43:34,004 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~expected~0 [2024-11-14 04:43:34,004 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~head!base [2024-11-14 04:43:34,004 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base [2024-11-14 04:43:34,004 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] [2024-11-14 04:43:34,004 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~s~0!base,]]] [2024-11-14 04:43:34,004 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.offset [2024-11-14 04:43:34,004 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.offset,GLOBAL] [2024-11-14 04:43:34,005 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.offset,GLOBAL],[IdentifierExpression[~s~0!base,]]] [2024-11-14 04:43:34,005 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~head!offset [2024-11-14 04:43:34,005 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~head!base [2024-11-14 04:43:34,005 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~s~0!base [2024-11-14 04:43:34,005 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~head!offset [2024-11-14 04:43:34,005 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~len~0 [2024-11-14 04:43:34,005 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~s~0!offset [2024-11-14 04:43:34,005 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-14 04:43:34,005 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~i~0 [2024-11-14 04:43:34,005 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~len~0 [2024-11-14 04:43:34,005 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~s~0!offset [2024-11-14 04:43:34,008 WARN L162 FloydHoareUtils]: Requires clause for node_create contained old-variable. Original clause: (and (= |old(#length)| |#length|) (<= 1 |#StackHeapBarrier|) (= |node_create_#in~data#1| 1) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#valid)| |#valid|)) Eliminated clause: (and (<= 1 |#StackHeapBarrier|) (= |node_create_#in~data#1| 1)) [2024-11-14 04:43:34,020 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-14 04:43:34,020 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-14 04:43:34,020 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-14 04:43:34,021 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 04:43:34,021 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array UnaryExpression[OLD,IdentifierExpression[#valid,GLOBAL]] [2024-11-14 04:43:34,021 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #res!base [2024-11-14 04:43:34,021 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-14 04:43:34,021 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: ArrayStoreExpression [2024-11-14 04:43:34,021 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 04:43:34,021 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: ArrayStoreExpression [2024-11-14 04:43:34,021 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base [2024-11-14 04:43:34,021 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #res!base [2024-11-14 04:43:34,022 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #res!offset [2024-11-14 04:43:34,022 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.offset [2024-11-14 04:43:34,022 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: ArrayStoreExpression [2024-11-14 04:43:34,022 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-14 04:43:34,023 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: ArrayStoreExpression [2024-11-14 04:43:34,025 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_ALL [2024-11-14 04:43:34,025 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PID [2024-11-14 04:43:34,025 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PGID [2024-11-14 04:43:34,026 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 04:43:34 BoogieIcfgContainer [2024-11-14 04:43:34,027 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 04:43:34,027 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 04:43:34,028 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 04:43:34,028 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 04:43:34,028 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:37:07" (3/4) ... [2024-11-14 04:43:34,031 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-14 04:43:34,034 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure node_create [2024-11-14 04:43:34,042 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2024-11-14 04:43:34,042 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-14 04:43:34,045 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-14 04:43:34,045 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-14 04:43:34,142 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ba2228-e625-4fd3-b48a-f1598af3c23f/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-14 04:43:34,143 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ba2228-e625-4fd3-b48a-f1598af3c23f/bin/utaipan-verify-sOmjnqqW8E/witness.yml [2024-11-14 04:43:34,143 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 04:43:34,144 INFO L158 Benchmark]: Toolchain (without parser) took 388021.15ms. Allocated memory was 142.6MB in the beginning and 469.8MB in the end (delta: 327.2MB). Free memory was 117.5MB in the beginning and 276.8MB in the end (delta: -159.2MB). Peak memory consumption was 163.6MB. Max. memory is 16.1GB. [2024-11-14 04:43:34,146 INFO L158 Benchmark]: CDTParser took 0.45ms. Allocated memory is still 167.8MB. Free memory is still 105.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:43:34,146 INFO L158 Benchmark]: CACSL2BoogieTranslator took 665.47ms. Allocated memory is still 142.6MB. Free memory was 117.2MB in the beginning and 99.7MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 04:43:34,147 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.05ms. Allocated memory is still 142.6MB. Free memory was 99.7MB in the beginning and 97.6MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:43:34,147 INFO L158 Benchmark]: Boogie Preprocessor took 48.70ms. Allocated memory is still 142.6MB. Free memory was 97.6MB in the beginning and 96.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:43:34,147 INFO L158 Benchmark]: RCFGBuilder took 664.11ms. Allocated memory is still 142.6MB. Free memory was 96.4MB in the beginning and 74.0MB in the end (delta: 22.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-14 04:43:34,148 INFO L158 Benchmark]: TraceAbstraction took 386444.86ms. Allocated memory was 142.6MB in the beginning and 469.8MB in the end (delta: 327.2MB). Free memory was 73.6MB in the beginning and 280.9MB in the end (delta: -207.3MB). Peak memory consumption was 121.7MB. Max. memory is 16.1GB. [2024-11-14 04:43:34,148 INFO L158 Benchmark]: Witness Printer took 115.71ms. Allocated memory is still 469.8MB. Free memory was 280.9MB in the beginning and 276.8MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:43:34,149 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45ms. Allocated memory is still 167.8MB. Free memory is still 105.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 665.47ms. Allocated memory is still 142.6MB. Free memory was 117.2MB in the beginning and 99.7MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.05ms. Allocated memory is still 142.6MB. Free memory was 99.7MB in the beginning and 97.6MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 48.70ms. Allocated memory is still 142.6MB. Free memory was 97.6MB in the beginning and 96.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 664.11ms. Allocated memory is still 142.6MB. Free memory was 96.4MB in the beginning and 74.0MB in the end (delta: 22.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 386444.86ms. Allocated memory was 142.6MB in the beginning and 469.8MB in the end (delta: 327.2MB). Free memory was 73.6MB in the beginning and 280.9MB in the end (delta: -207.3MB). Peak memory consumption was 121.7MB. Max. memory is 16.1GB. * Witness Printer took 115.71ms. Allocated memory is still 469.8MB. Free memory was 280.9MB in the beginning and 276.8MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~s~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~s~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~s~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~head~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~last~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~head~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~last~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~i~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~len~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~s~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~len~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~i~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~i~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~s~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~i~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~expected~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~head!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~s~0!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.offset,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.offset,GLOBAL],[IdentifierExpression[~s~0!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~head!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~head!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~s~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~head!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~len~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~s~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~i~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~len~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~s~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array UnaryExpression[OLD,IdentifierExpression[#valid,GLOBAL]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #res!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: ArrayStoreExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: ArrayStoreExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #res!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #res!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: ArrayStoreExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: ArrayStoreExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_ALL - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PID - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PGID * 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 - PositiveResult [Line: 590]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 590]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 625]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 625]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 626]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 626]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 616]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 616]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 625]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 625]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 629]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 629]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 630]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 630]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 609]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 609]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 629]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 629]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 56 locations, 18 error locations. Started 1 CEGAR loops. OverallTime: 385.5s, OverallIterations: 20, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 247.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 110 mSolverCounterUnknown, 544 SdHoareTripleChecker+Valid, 168.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 543 mSDsluCounter, 1615 SdHoareTripleChecker+Invalid, 162.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1118 mSDsCounter, 53 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3388 IncrementalHoareTripleChecker+Invalid, 3551 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 53 mSolverCounterUnsat, 497 mSDtfsCounter, 3388 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 983 GetRequests, 656 SyntacticMatches, 36 SemanticMatches, 291 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2127 ImplicationChecksByTransitivity, 201.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred in iteration=19, InterpolantAutomatonStates: 208, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 20 MinimizatonAttempts, 73 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 859 NumberOfCodeBlocks, 828 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 1099 ConstructedInterpolants, 0 QuantifiedInterpolants, 2578 SizeOfPredicates, 11 NumberOfNonLiveVariables, 2094 ConjunctsInSsa, 43 ConjunctsInUnsatCore, 35 InterpolantComputations, 13 PerfectInterpolantSequences, 273/306 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: OVERALL_TIME: 4.9s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 10, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 170, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 380, TOOLS_POST_TIME: 1.9s, TOOLS_POST_CALL_APPLICATIONS: 50, TOOLS_POST_CALL_TIME: 0.6s, TOOLS_POST_RETURN_APPLICATIONS: 40, TOOLS_POST_RETURN_TIME: 1.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 421, TOOLS_QUANTIFIERELIM_TIME: 3.3s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 716, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 93, DOMAIN_JOIN_TIME: 0.5s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 14, DOMAIN_WIDEN_TIME: 0.1s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 46, DOMAIN_ISSUBSETEQ_TIME: 0.1s, DOMAIN_ISBOTTOM_APPLICATIONS: 170, DOMAIN_ISBOTTOM_TIME: 0.4s, LOOP_SUMMARIZER_APPLICATIONS: 32, LOOP_SUMMARIZER_CACHE_MISSES: 32, LOOP_SUMMARIZER_OVERALL_TIME: 2.4s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 2.4s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 46, CALL_SUMMARIZER_APPLICATIONS: 40, CALL_SUMMARIZER_CACHE_MISSES: 5, CALL_SUMMARIZER_OVERALL_TIME: 0.1s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.1s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.1s, DAG_COMPRESSION_PROCESSED_NODES: 4703, DAG_COMPRESSION_RETAINED_NODES: 522, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 18 specifications checked. All of them hold - InvariantResult [Line: 629]: Loop Invariant Derived loop invariant: (((i <= 0) && (len == 2)) || ((i == 1) && (len == 2))) - InvariantResult [Line: 625]: Loop Invariant Derived loop invariant: (((0 <= ((long long) i + 1)) && (len == 2)) && (i <= 1)) - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: ((((2 == len) && (len == 2)) && (data == 1)) || (((len == 1) && (len == 2)) && (data == 1))) - InvariantResult [Line: 614]: Loop Invariant Derived loop invariant: (((((0 <= index) && (index <= 1)) && (data <= 3)) && (2 <= data)) || (((0 <= index) && (data <= 3)) && (2 <= data))) - InvariantResult [Line: 607]: Loop Invariant Derived loop invariant: (((index == 0) || (index == 1)) || (index <= 0)) - ProcedureContractResult [Line: 574]: Procedure Contract for node_create Derived contract for procedure node_create. Requires: (data == 1) Ensures: (data == 1) RESULT: Ultimate proved your program to be correct! [2024-11-14 04:43:34,378 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ba2228-e625-4fd3-b48a-f1598af3c23f/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2024-11-14 04:43:34,400 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ba2228-e625-4fd3-b48a-f1598af3c23f/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE