./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-invgen/NetBSD_loop.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef878be-2106-4d02-a5f8-10656e56f770/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef878be-2106-4d02-a5f8-10656e56f770/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef878be-2106-4d02-a5f8-10656e56f770/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef878be-2106-4d02-a5f8-10656e56f770/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-invgen/NetBSD_loop.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef878be-2106-4d02-a5f8-10656e56f770/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef878be-2106-4d02-a5f8-10656e56f770/bin/utaipan-verify-YMUCfTKeje --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 b38f47c3dcd7731e15cfc2cee00261f352bac0ed4fe94aeeb81a5c76defb252d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:16:34,678 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:16:34,755 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef878be-2106-4d02-a5f8-10656e56f770/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-09 06:16:34,759 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:16:34,760 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:16:34,781 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:16:34,781 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:16:34,782 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:16:34,782 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:16:34,783 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:16:34,783 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:16:34,783 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:16:34,784 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:16:34,784 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:16:34,785 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:16:34,785 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:16:34,785 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:16:34,786 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:16:34,786 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:16:34,786 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:16:34,791 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:16:34,792 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:16:34,792 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:16:34,793 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:16:34,793 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:16:34,793 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:16:34,793 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:16:34,794 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:16:34,794 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:16:34,794 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:16:34,794 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:16:34,795 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:16:34,795 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 06:16:34,797 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 06:16:34,797 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:16:34,798 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:16:34,798 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:16:34,799 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:16:34,799 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:16:34,800 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:16:34,800 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:16:34,800 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:16:34,800 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:16:34,801 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:16:34,801 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:16:34,801 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:16:34,802 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:16:34,802 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:16:34,802 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:16:34,803 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef878be-2106-4d02-a5f8-10656e56f770/bin/utaipan-verify-YMUCfTKeje/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef878be-2106-4d02-a5f8-10656e56f770/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b38f47c3dcd7731e15cfc2cee00261f352bac0ed4fe94aeeb81a5c76defb252d [2024-11-09 06:16:35,071 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:16:35,097 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:16:35,100 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:16:35,101 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:16:35,102 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:16:35,103 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef878be-2106-4d02-a5f8-10656e56f770/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/loop-invgen/NetBSD_loop.i Unable to find full path for "g++" [2024-11-09 06:16:37,142 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:16:37,344 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:16:37,344 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef878be-2106-4d02-a5f8-10656e56f770/sv-benchmarks/c/loop-invgen/NetBSD_loop.i [2024-11-09 06:16:37,351 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef878be-2106-4d02-a5f8-10656e56f770/bin/utaipan-verify-YMUCfTKeje/data/335373b3b/f4b0f64a58084333846a00fa68daeabd/FLAG00ba8dde4 [2024-11-09 06:16:37,365 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef878be-2106-4d02-a5f8-10656e56f770/bin/utaipan-verify-YMUCfTKeje/data/335373b3b/f4b0f64a58084333846a00fa68daeabd [2024-11-09 06:16:37,368 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:16:37,370 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:16:37,371 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:16:37,371 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:16:37,379 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:16:37,380 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:16:37" (1/1) ... [2024-11-09 06:16:37,382 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dfb1c84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:16:37, skipping insertion in model container [2024-11-09 06:16:37,382 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:16:37" (1/1) ... [2024-11-09 06:16:37,404 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:16:37,600 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:16:37,611 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:16:37,628 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:16:37,647 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:16:37,647 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:16:37 WrapperNode [2024-11-09 06:16:37,648 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:16:37,649 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:16:37,649 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:16:37,649 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:16:37,658 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:16:37" (1/1) ... [2024-11-09 06:16:37,666 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:16:37" (1/1) ... [2024-11-09 06:16:37,687 INFO L138 Inliner]: procedures = 16, calls = 9, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 54 [2024-11-09 06:16:37,687 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:16:37,688 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:16:37,688 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:16:37,689 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:16:37,702 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:16:37" (1/1) ... [2024-11-09 06:16:37,702 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:16:37" (1/1) ... [2024-11-09 06:16:37,703 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:16:37" (1/1) ... [2024-11-09 06:16:37,704 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:16:37" (1/1) ... [2024-11-09 06:16:37,706 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:16:37" (1/1) ... [2024-11-09 06:16:37,710 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:16:37" (1/1) ... [2024-11-09 06:16:37,711 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:16:37" (1/1) ... [2024-11-09 06:16:37,715 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:16:37" (1/1) ... [2024-11-09 06:16:37,717 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:16:37,718 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:16:37,718 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:16:37,718 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:16:37,719 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:16:37" (1/1) ... [2024-11-09 06:16:37,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:16:37,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef878be-2106-4d02-a5f8-10656e56f770/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:16:37,762 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef878be-2106-4d02-a5f8-10656e56f770/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:16:37,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef878be-2106-4d02-a5f8-10656e56f770/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:16:37,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:16:37,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:16:37,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:16:37,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:16:37,801 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 06:16:37,803 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 06:16:37,880 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:16:37,883 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:16:38,129 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-11-09 06:16:38,130 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:16:38,204 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:16:38,205 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 06:16:38,206 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:16:38 BoogieIcfgContainer [2024-11-09 06:16:38,206 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:16:38,209 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:16:38,210 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:16:38,215 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:16:38,216 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:16:37" (1/3) ... [2024-11-09 06:16:38,217 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46d43ad4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:16:38, skipping insertion in model container [2024-11-09 06:16:38,218 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:16:37" (2/3) ... [2024-11-09 06:16:38,218 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46d43ad4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:16:38, skipping insertion in model container [2024-11-09 06:16:38,219 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:16:38" (3/3) ... [2024-11-09 06:16:38,221 INFO L112 eAbstractionObserver]: Analyzing ICFG NetBSD_loop.i [2024-11-09 06:16:38,241 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:16:38,241 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2024-11-09 06:16:38,316 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:16:38,324 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;@3d49d6ac, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:16:38,326 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-11-09 06:16:38,331 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 17 states have (on average 1.7647058823529411) internal successors, (30), 27 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) [2024-11-09 06:16:38,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-09 06:16:38,338 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:16:38,339 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-09 06:16:38,339 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-09 06:16:38,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:16:38,347 INFO L85 PathProgramCache]: Analyzing trace with hash 101163, now seen corresponding path program 1 times [2024-11-09 06:16:38,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:16:38,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521599221] [2024-11-09 06:16:38,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:16:38,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:16:38,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:16:38,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:16:38,606 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:16:38,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521599221] [2024-11-09 06:16:38,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521599221] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:16:38,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:16:38,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 06:16:38,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989574017] [2024-11-09 06:16:38,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:16:38,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:16:38,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:16:38,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:16:38,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:16:38,644 INFO L87 Difference]: Start difference. First operand has 31 states, 17 states have (on average 1.7647058823529411) internal successors, (30), 27 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) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:16:38,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:16:38,743 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2024-11-09 06:16:38,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:16:38,749 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-09 06:16:38,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:16:38,757 INFO L225 Difference]: With dead ends: 32 [2024-11-09 06:16:38,757 INFO L226 Difference]: Without dead ends: 27 [2024-11-09 06:16:38,760 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:16:38,766 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 17 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:16:38,768 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 15 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:16:38,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-11-09 06:16:38,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-11-09 06:16:38,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 16 states have (on average 1.5) internal successors, (24), 23 states have internal predecessors, (24), 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) [2024-11-09 06:16:38,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2024-11-09 06:16:38,814 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 3 [2024-11-09 06:16:38,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:16:38,815 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2024-11-09 06:16:38,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:16:38,816 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2024-11-09 06:16:38,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-09 06:16:38,818 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:16:38,818 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-09 06:16:38,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:16:38,819 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-09 06:16:38,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:16:38,819 INFO L85 PathProgramCache]: Analyzing trace with hash 3136096, now seen corresponding path program 1 times [2024-11-09 06:16:38,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:16:38,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725896779] [2024-11-09 06:16:38,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:16:38,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:16:38,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:16:38,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:16:38,877 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:16:38,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725896779] [2024-11-09 06:16:38,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725896779] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:16:38,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:16:38,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:16:38,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307533343] [2024-11-09 06:16:38,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:16:38,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:16:38,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:16:38,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:16:38,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:16:38,883 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:16:38,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:16:38,931 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2024-11-09 06:16:38,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:16:38,934 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-09 06:16:38,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:16:38,935 INFO L225 Difference]: With dead ends: 27 [2024-11-09 06:16:38,935 INFO L226 Difference]: Without dead ends: 25 [2024-11-09 06:16:38,935 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:16:38,937 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 14 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:16:38,937 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 13 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:16:38,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2024-11-09 06:16:38,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2024-11-09 06:16:38,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 16 states have (on average 1.375) internal successors, (22), 21 states have internal predecessors, (22), 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) [2024-11-09 06:16:38,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2024-11-09 06:16:38,949 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 4 [2024-11-09 06:16:38,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:16:38,950 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2024-11-09 06:16:38,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:16:38,951 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2024-11-09 06:16:38,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-09 06:16:38,951 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:16:38,952 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-09 06:16:38,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 06:16:38,952 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-09 06:16:38,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:16:38,954 INFO L85 PathProgramCache]: Analyzing trace with hash 97219021, now seen corresponding path program 1 times [2024-11-09 06:16:38,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:16:38,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177542778] [2024-11-09 06:16:38,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:16:38,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:16:38,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:16:39,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:16:39,034 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:16:39,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177542778] [2024-11-09 06:16:39,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177542778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:16:39,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:16:39,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:16:39,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909889931] [2024-11-09 06:16:39,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:16:39,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:16:39,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:16:39,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:16:39,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:16:39,040 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:16:39,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:16:39,077 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2024-11-09 06:16:39,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:16:39,078 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-09 06:16:39,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:16:39,079 INFO L225 Difference]: With dead ends: 25 [2024-11-09 06:16:39,079 INFO L226 Difference]: Without dead ends: 23 [2024-11-09 06:16:39,080 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:16:39,082 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 3 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:16:39,083 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 24 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:16:39,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-11-09 06:16:39,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2024-11-09 06:16:39,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 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) [2024-11-09 06:16:39,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2024-11-09 06:16:39,092 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 5 [2024-11-09 06:16:39,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:16:39,093 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2024-11-09 06:16:39,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:16:39,094 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2024-11-09 06:16:39,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-09 06:16:39,095 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:16:39,095 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-09 06:16:39,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 06:16:39,096 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-09 06:16:39,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:16:39,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1281177598, now seen corresponding path program 1 times [2024-11-09 06:16:39,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:16:39,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299707889] [2024-11-09 06:16:39,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:16:39,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:16:39,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:16:39,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:16:39,189 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:16:39,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299707889] [2024-11-09 06:16:39,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299707889] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:16:39,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:16:39,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:16:39,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722984536] [2024-11-09 06:16:39,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:16:39,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:16:39,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:16:39,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:16:39,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:16:39,193 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:16:39,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:16:39,225 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2024-11-09 06:16:39,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:16:39,226 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-09 06:16:39,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:16:39,227 INFO L225 Difference]: With dead ends: 23 [2024-11-09 06:16:39,227 INFO L226 Difference]: Without dead ends: 21 [2024-11-09 06:16:39,227 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:16:39,228 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 2 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:16:39,229 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 24 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:16:39,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2024-11-09 06:16:39,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2024-11-09 06:16:39,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 16 states have (on average 1.125) internal successors, (18), 17 states have internal predecessors, (18), 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) [2024-11-09 06:16:39,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2024-11-09 06:16:39,234 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 6 [2024-11-09 06:16:39,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:16:39,235 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2024-11-09 06:16:39,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:16:39,235 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2024-11-09 06:16:39,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-09 06:16:39,236 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:16:39,236 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:16:39,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 06:16:39,237 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-09 06:16:39,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:16:39,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1100881005, now seen corresponding path program 1 times [2024-11-09 06:16:39,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:16:39,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24700698] [2024-11-09 06:16:39,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:16:39,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:16:39,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:16:39,422 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:16:39,422 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:16:39,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24700698] [2024-11-09 06:16:39,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24700698] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:16:39,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:16:39,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:16:39,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689365446] [2024-11-09 06:16:39,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:16:39,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:16:39,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:16:39,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:16:39,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:16:39,427 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 06:16:39,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:16:39,503 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2024-11-09 06:16:39,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:16:39,504 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 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 [2024-11-09 06:16:39,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:16:39,505 INFO L225 Difference]: With dead ends: 32 [2024-11-09 06:16:39,505 INFO L226 Difference]: Without dead ends: 30 [2024-11-09 06:16:39,505 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:16:39,506 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 1 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:16:39,507 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 36 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:16:39,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-11-09 06:16:39,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2024-11-09 06:16:39,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 23 states have (on average 1.0869565217391304) internal successors, (25), 24 states have internal predecessors, (25), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 06:16:39,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2024-11-09 06:16:39,523 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 20 [2024-11-09 06:16:39,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:16:39,525 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2024-11-09 06:16:39,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 06:16:39,525 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2024-11-09 06:16:39,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-09 06:16:39,528 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:16:39,528 INFO L215 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:16:39,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 06:16:39,529 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-09 06:16:39,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:16:39,530 INFO L85 PathProgramCache]: Analyzing trace with hash 371828547, now seen corresponding path program 1 times [2024-11-09 06:16:39,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:16:39,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079674874] [2024-11-09 06:16:39,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:16:39,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:16:39,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:16:39,796 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 06:16:39,797 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:16:39,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079674874] [2024-11-09 06:16:39,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079674874] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:16:39,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [886351911] [2024-11-09 06:16:39,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:16:39,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:16:39,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef878be-2106-4d02-a5f8-10656e56f770/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:16:39,806 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef878be-2106-4d02-a5f8-10656e56f770/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:16:39,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef878be-2106-4d02-a5f8-10656e56f770/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 06:16:39,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:16:39,879 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 06:16:39,887 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:16:40,029 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 06:16:40,029 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:16:40,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [886351911] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:16:40,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:16:40,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2024-11-09 06:16:40,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609277881] [2024-11-09 06:16:40,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:16:40,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 06:16:40,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:16:40,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 06:16:40,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-09 06:16:40,035 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 7 states have internal predecessors, (22), 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) [2024-11-09 06:16:40,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:16:40,124 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2024-11-09 06:16:40,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 06:16:40,126 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 7 states have internal predecessors, (22), 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 33 [2024-11-09 06:16:40,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:16:40,127 INFO L225 Difference]: With dead ends: 30 [2024-11-09 06:16:40,127 INFO L226 Difference]: Without dead ends: 29 [2024-11-09 06:16:40,128 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-09 06:16:40,129 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 1 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:16:40,129 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 48 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:16:40,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2024-11-09 06:16:40,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2024-11-09 06:16:40,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 23 states have (on average 1.0434782608695652) internal successors, (24), 23 states have internal predecessors, (24), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 06:16:40,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2024-11-09 06:16:40,141 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 33 [2024-11-09 06:16:40,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:16:40,141 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2024-11-09 06:16:40,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 7 states have internal predecessors, (22), 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) [2024-11-09 06:16:40,141 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2024-11-09 06:16:40,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-09 06:16:40,143 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:16:40,144 INFO L215 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:16:40,166 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef878be-2106-4d02-a5f8-10656e56f770/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 06:16:40,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef878be-2106-4d02-a5f8-10656e56f770/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:16:40,348 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-09 06:16:40,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:16:40,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1358216860, now seen corresponding path program 1 times [2024-11-09 06:16:40,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:16:40,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424543807] [2024-11-09 06:16:40,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:16:40,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:16:40,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:16:40,548 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 06:16:40,548 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:16:40,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424543807] [2024-11-09 06:16:40,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424543807] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:16:40,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1359429517] [2024-11-09 06:16:40,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:16:40,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:16:40,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef878be-2106-4d02-a5f8-10656e56f770/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:16:40,551 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef878be-2106-4d02-a5f8-10656e56f770/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:16:40,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef878be-2106-4d02-a5f8-10656e56f770/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 06:16:40,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:16:40,622 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 06:16:40,624 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:16:40,736 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 06:16:40,736 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:16:40,910 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 06:16:40,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1359429517] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:16:40,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [821729100] [2024-11-09 06:16:40,931 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2024-11-09 06:16:40,932 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:16:40,935 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:16:40,942 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:16:40,943 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:16:42,079 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 20 for LOIs [2024-11-09 06:16:42,084 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:16:42,713 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '768#(and (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~glob2_pathlim_off~0#1|) (<= |ULTIMATE.start_main_~glob2_pathlim_off~0#1| 2147483646) (<= 1 |ULTIMATE.start_main_~MAXPATHLEN~0#1|) (<= |ULTIMATE.start_main_~MAXPATHLEN~0#1| 2147483646))' at error location [2024-11-09 06:16:42,714 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:16:42,714 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:16:42,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2024-11-09 06:16:42,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166750710] [2024-11-09 06:16:42,714 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:16:42,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-09 06:16:42,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:16:42,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-09 06:16:42,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=471, Unknown=0, NotChecked=0, Total=552 [2024-11-09 06:16:42,717 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand has 15 states, 14 states have (on average 4.142857142857143) internal successors, (58), 15 states have internal predecessors, (58), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-09 06:16:42,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:16:42,844 INFO L93 Difference]: Finished difference Result 57 states and 68 transitions. [2024-11-09 06:16:42,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 06:16:42,846 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.142857142857143) internal successors, (58), 15 states have internal predecessors, (58), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 34 [2024-11-09 06:16:42,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:16:42,847 INFO L225 Difference]: With dead ends: 57 [2024-11-09 06:16:42,848 INFO L226 Difference]: Without dead ends: 56 [2024-11-09 06:16:42,848 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=81, Invalid=471, Unknown=0, NotChecked=0, Total=552 [2024-11-09 06:16:42,849 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:16:42,849 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 57 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:16:42,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-11-09 06:16:42,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2024-11-09 06:16:42,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 44 states have (on average 1.0227272727272727) internal successors, (45), 44 states have internal predecessors, (45), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-09 06:16:42,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 65 transitions. [2024-11-09 06:16:42,887 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 65 transitions. Word has length 34 [2024-11-09 06:16:42,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:16:42,887 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 65 transitions. [2024-11-09 06:16:42,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.142857142857143) internal successors, (58), 15 states have internal predecessors, (58), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-09 06:16:42,888 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 65 transitions. [2024-11-09 06:16:42,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-09 06:16:42,890 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:16:42,890 INFO L215 NwaCegarLoop]: trace histogram [10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:16:42,911 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef878be-2106-4d02-a5f8-10656e56f770/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 06:16:43,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef878be-2106-4d02-a5f8-10656e56f770/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:16:43,095 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-09 06:16:43,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:16:43,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1425013242, now seen corresponding path program 2 times [2024-11-09 06:16:43,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:16:43,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146122340] [2024-11-09 06:16:43,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:16:43,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:16:43,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:16:43,474 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-09 06:16:43,476 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:16:43,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146122340] [2024-11-09 06:16:43,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146122340] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:16:43,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1892162817] [2024-11-09 06:16:43,476 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 06:16:43,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:16:43,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef878be-2106-4d02-a5f8-10656e56f770/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:16:43,480 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef878be-2106-4d02-a5f8-10656e56f770/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:16:43,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef878be-2106-4d02-a5f8-10656e56f770/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 06:16:43,547 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-09 06:16:43,547 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:16:43,548 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 06:16:43,555 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:16:43,719 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-09 06:16:43,719 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:16:43,899 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-09 06:16:43,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1892162817] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:16:43,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1280682609] [2024-11-09 06:16:43,902 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2024-11-09 06:16:43,902 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:16:43,902 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:16:43,903 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:16:43,903 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:16:44,485 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 20 for LOIs [2024-11-09 06:16:44,492 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:16:45,121 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1375#(and (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~glob2_pathlim_off~0#1|) (<= |ULTIMATE.start_main_~glob2_pathlim_off~0#1| 2147483646) (<= 1 |ULTIMATE.start_main_~MAXPATHLEN~0#1|) (<= |ULTIMATE.start_main_~MAXPATHLEN~0#1| 2147483646))' at error location [2024-11-09 06:16:45,121 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:16:45,121 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:16:45,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 6, 6] total 18 [2024-11-09 06:16:45,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5898806] [2024-11-09 06:16:45,122 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:16:45,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-09 06:16:45,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:16:45,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-09 06:16:45,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=651, Unknown=0, NotChecked=0, Total=756 [2024-11-09 06:16:45,124 INFO L87 Difference]: Start difference. First operand 56 states and 65 transitions. Second operand has 19 states, 18 states have (on average 3.888888888888889) internal successors, (70), 19 states have internal predecessors, (70), 7 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2024-11-09 06:16:45,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:16:45,485 INFO L93 Difference]: Finished difference Result 66 states and 78 transitions. [2024-11-09 06:16:45,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 06:16:45,486 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.888888888888889) internal successors, (70), 19 states have internal predecessors, (70), 7 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) Word has length 73 [2024-11-09 06:16:45,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:16:45,487 INFO L225 Difference]: With dead ends: 66 [2024-11-09 06:16:45,487 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 06:16:45,488 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 200 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 408 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=222, Invalid=1418, Unknown=0, NotChecked=0, Total=1640 [2024-11-09 06:16:45,489 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 1 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:16:45,490 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 52 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:16:45,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 06:16:45,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 06:16:45,491 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) [2024-11-09 06:16:45,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 06:16:45,491 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 73 [2024-11-09 06:16:45,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:16:45,491 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 06:16:45,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.888888888888889) internal successors, (70), 19 states have internal predecessors, (70), 7 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2024-11-09 06:16:45,492 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 06:16:45,492 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 06:16:45,495 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2024-11-09 06:16:45,495 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2024-11-09 06:16:45,495 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2024-11-09 06:16:45,496 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2024-11-09 06:16:45,496 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2024-11-09 06:16:45,496 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2024-11-09 06:16:45,496 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2024-11-09 06:16:45,497 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2024-11-09 06:16:45,497 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2024-11-09 06:16:45,497 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2024-11-09 06:16:45,518 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef878be-2106-4d02-a5f8-10656e56f770/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-09 06:16:45,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef878be-2106-4d02-a5f8-10656e56f770/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:16:45,703 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1] [2024-11-09 06:16:45,706 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 06:16:45,894 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 06:16:45,921 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 06:16:45 BoogieIcfgContainer [2024-11-09 06:16:45,921 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 06:16:45,922 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 06:16:45,922 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 06:16:45,922 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 06:16:45,923 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:16:38" (3/4) ... [2024-11-09 06:16:45,925 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 06:16:45,929 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-09 06:16:45,933 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2024-11-09 06:16:45,933 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-09 06:16:45,933 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 06:16:45,933 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 06:16:46,013 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef878be-2106-4d02-a5f8-10656e56f770/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 06:16:46,014 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef878be-2106-4d02-a5f8-10656e56f770/bin/utaipan-verify-YMUCfTKeje/witness.yml [2024-11-09 06:16:46,014 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 06:16:46,015 INFO L158 Benchmark]: Toolchain (without parser) took 8645.27ms. Allocated memory was 172.0MB in the beginning and 251.7MB in the end (delta: 79.7MB). Free memory was 136.9MB in the beginning and 124.5MB in the end (delta: 12.5MB). Peak memory consumption was 94.6MB. Max. memory is 16.1GB. [2024-11-09 06:16:46,015 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 113.2MB. Free memory was 60.1MB in the beginning and 60.0MB in the end (delta: 97.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:16:46,015 INFO L158 Benchmark]: CACSL2BoogieTranslator took 276.99ms. Allocated memory is still 172.0MB. Free memory was 136.9MB in the beginning and 124.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 06:16:46,016 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.78ms. Allocated memory is still 172.0MB. Free memory was 124.4MB in the beginning and 123.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:16:46,016 INFO L158 Benchmark]: Boogie Preprocessor took 29.11ms. Allocated memory is still 172.0MB. Free memory was 123.2MB in the beginning and 121.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:16:46,016 INFO L158 Benchmark]: RCFGBuilder took 488.64ms. Allocated memory is still 172.0MB. Free memory was 121.8MB in the beginning and 109.2MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 06:16:46,017 INFO L158 Benchmark]: TraceAbstraction took 7712.29ms. Allocated memory was 172.0MB in the beginning and 251.7MB in the end (delta: 79.7MB). Free memory was 108.5MB in the beginning and 128.7MB in the end (delta: -20.1MB). Peak memory consumption was 61.1MB. Max. memory is 16.1GB. [2024-11-09 06:16:46,017 INFO L158 Benchmark]: Witness Printer took 92.00ms. Allocated memory is still 251.7MB. Free memory was 128.7MB in the beginning and 124.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 06:16:46,019 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 113.2MB. Free memory was 60.1MB in the beginning and 60.0MB in the end (delta: 97.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 276.99ms. Allocated memory is still 172.0MB. Free memory was 136.9MB in the beginning and 124.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.78ms. Allocated memory is still 172.0MB. Free memory was 124.4MB in the beginning and 123.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.11ms. Allocated memory is still 172.0MB. Free memory was 123.2MB in the beginning and 121.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 488.64ms. Allocated memory is still 172.0MB. Free memory was 121.8MB in the beginning and 109.2MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 7712.29ms. Allocated memory was 172.0MB in the beginning and 251.7MB in the end (delta: 79.7MB). Free memory was 108.5MB in the beginning and 128.7MB in the end (delta: -20.1MB). Peak memory consumption was 61.1MB. Max. memory is 16.1GB. * Witness Printer took 92.00ms. Allocated memory is still 251.7MB. Free memory was 128.7MB in the beginning and 124.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 42]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 42]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: 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, 31 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 7.4s, OverallIterations: 8, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 43 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 39 mSDsluCounter, 269 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 180 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 424 IncrementalHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 89 mSDtfsCounter, 424 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 397 GetRequests, 318 SyntacticMatches, 3 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 606 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=7, InterpolantAutomatonStates: 51, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 318 NumberOfCodeBlocks, 261 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 412 ConstructedInterpolants, 0 QuantifiedInterpolants, 1060 SizeOfPredicates, 4 NumberOfNonLiveVariables, 242 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 13 InterpolantComputations, 6 PerfectInterpolantSequences, 456/645 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: (((((glob2_p_off == 0) && (0 <= (MAXPATHLEN + 2147483648))) && (glob2_pathlim_off <= 2147483646)) && (MAXPATHLEN <= 2147483646)) || ((((0 <= (MAXPATHLEN + 2147483648)) && (1 <= glob2_p_off)) && (glob2_pathlim_off <= 2147483646)) && (MAXPATHLEN <= 2147483646))) RESULT: Ultimate proved your program to be correct! [2024-11-09 06:16:46,050 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ef878be-2106-4d02-a5f8-10656e56f770/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE