./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_multiply_17_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d0bc94-93e4-430a-abee-ecb94f22392c/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d0bc94-93e4-430a-abee-ecb94f22392c/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d0bc94-93e4-430a-abee-ecb94f22392c/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d0bc94-93e4-430a-abee-ecb94f22392c/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_multiply_17_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d0bc94-93e4-430a-abee-ecb94f22392c/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d0bc94-93e4-430a-abee-ecb94f22392c/bin/uautomizer-verify-jihMAELWvX --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a0f9943518c6721d9e6c1d0bc444caec6ec81ec7ab33ad823efb20af4787efc7 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 16:31:18,423 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:31:18,514 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d0bc94-93e4-430a-abee-ecb94f22392c/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-08 16:31:18,520 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:31:18,521 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:31:18,550 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:31:18,550 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:31:18,551 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:31:18,552 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 16:31:18,552 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 16:31:18,553 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:31:18,553 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:31:18,554 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:31:18,555 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:31:18,555 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:31:18,556 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:31:18,556 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 16:31:18,557 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 16:31:18,557 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:31:18,558 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 16:31:18,558 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:31:18,559 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 16:31:18,560 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:31:18,560 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 16:31:18,561 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 16:31:18,561 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 16:31:18,562 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:31:18,562 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:31:18,563 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:31:18,563 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 16:31:18,564 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:31:18,564 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:31:18,565 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:31:18,565 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:31:18,566 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 16:31:18,566 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 16:31:18,566 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 16:31:18,567 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:31:18,567 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:31:18,568 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:31:18,568 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:31:18,569 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_77d0bc94-93e4-430a-abee-ecb94f22392c/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d0bc94-93e4-430a-abee-ecb94f22392c/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a0f9943518c6721d9e6c1d0bc444caec6ec81ec7ab33ad823efb20af4787efc7 [2024-11-08 16:31:18,988 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:31:19,030 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:31:19,039 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:31:19,041 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:31:19,042 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:31:19,044 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d0bc94-93e4-430a-abee-ecb94f22392c/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_multiply_17_bad.i Unable to find full path for "g++" [2024-11-08 16:31:21,543 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:31:22,156 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:31:22,157 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d0bc94-93e4-430a-abee-ecb94f22392c/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_multiply_17_bad.i [2024-11-08 16:31:22,196 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d0bc94-93e4-430a-abee-ecb94f22392c/bin/uautomizer-verify-jihMAELWvX/data/c21351627/4b5f20b0a253485289bd31543e640b5f/FLAGdaf007057 [2024-11-08 16:31:22,666 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d0bc94-93e4-430a-abee-ecb94f22392c/bin/uautomizer-verify-jihMAELWvX/data/c21351627/4b5f20b0a253485289bd31543e640b5f [2024-11-08 16:31:22,673 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:31:22,678 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:31:22,680 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:31:22,684 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:31:22,691 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:31:22,693 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:31:22" (1/1) ... [2024-11-08 16:31:22,694 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5343004f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:31:22, skipping insertion in model container [2024-11-08 16:31:22,694 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:31:22" (1/1) ... [2024-11-08 16:31:22,773 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:31:24,143 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:31:24,155 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:31:24,281 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:31:24,503 INFO L204 MainTranslator]: Completed translation [2024-11-08 16:31:24,503 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:31:24 WrapperNode [2024-11-08 16:31:24,504 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:31:24,506 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 16:31:24,506 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 16:31:24,506 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 16:31:24,517 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:31:24" (1/1) ... [2024-11-08 16:31:24,595 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:31:24" (1/1) ... [2024-11-08 16:31:24,641 INFO L138 Inliner]: procedures = 497, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2024-11-08 16:31:24,642 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 16:31:24,643 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 16:31:24,643 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 16:31:24,643 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 16:31:24,658 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:31:24" (1/1) ... [2024-11-08 16:31:24,659 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:31:24" (1/1) ... [2024-11-08 16:31:24,662 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:31:24" (1/1) ... [2024-11-08 16:31:24,676 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-08 16:31:24,676 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:31:24" (1/1) ... [2024-11-08 16:31:24,677 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:31:24" (1/1) ... [2024-11-08 16:31:24,682 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:31:24" (1/1) ... [2024-11-08 16:31:24,686 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:31:24" (1/1) ... [2024-11-08 16:31:24,688 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:31:24" (1/1) ... [2024-11-08 16:31:24,689 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:31:24" (1/1) ... [2024-11-08 16:31:24,692 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 16:31:24,693 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 16:31:24,693 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 16:31:24,694 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 16:31:24,695 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:31:24" (1/1) ... [2024-11-08 16:31:24,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:31:24,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d0bc94-93e4-430a-abee-ecb94f22392c/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:31:24,743 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d0bc94-93e4-430a-abee-ecb94f22392c/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 16:31:24,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d0bc94-93e4-430a-abee-ecb94f22392c/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 16:31:24,785 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 16:31:24,785 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 16:31:24,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 16:31:24,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 16:31:24,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 16:31:24,956 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 16:31:24,960 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 16:31:25,158 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2024-11-08 16:31:25,159 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 16:31:25,175 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 16:31:25,175 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 16:31:25,176 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:31:25 BoogieIcfgContainer [2024-11-08 16:31:25,176 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 16:31:25,179 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 16:31:25,179 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 16:31:25,183 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 16:31:25,187 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:31:22" (1/3) ... [2024-11-08 16:31:25,188 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c6c0857 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:31:25, skipping insertion in model container [2024-11-08 16:31:25,188 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:31:24" (2/3) ... [2024-11-08 16:31:25,188 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c6c0857 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:31:25, skipping insertion in model container [2024-11-08 16:31:25,188 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:31:25" (3/3) ... [2024-11-08 16:31:25,191 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_min_multiply_17_bad.i [2024-11-08 16:31:25,211 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 16:31:25,211 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-08 16:31:25,288 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:31:25,296 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=PETRI_NET, 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;@72108cd6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:31:25,296 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-08 16:31:25,302 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 24 states have (on average 1.5) internal successors, (36), 30 states have internal predecessors, (36), 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) [2024-11-08 16:31:25,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 16:31:25,313 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:31:25,314 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:31:25,317 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-08 16:31:25,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:31:25,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1922943391, now seen corresponding path program 1 times [2024-11-08 16:31:25,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:31:25,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082309690] [2024-11-08 16:31:25,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:31:25,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:31:25,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:31:25,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 16:31:25,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:31:25,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:31:25,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:31:25,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082309690] [2024-11-08 16:31:25,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082309690] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:31:25,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:31:25,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:31:25,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673143052] [2024-11-08 16:31:25,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:31:25,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:31:25,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:31:25,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:31:25,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:31:25,856 INFO L87 Difference]: Start difference. First operand has 34 states, 24 states have (on average 1.5) internal successors, (36), 30 states have internal predecessors, (36), 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 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 16:31:25,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:31:25,935 INFO L93 Difference]: Finished difference Result 64 states and 75 transitions. [2024-11-08 16:31:25,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:31:25,942 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-11-08 16:31:25,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:31:25,952 INFO L225 Difference]: With dead ends: 64 [2024-11-08 16:31:25,952 INFO L226 Difference]: Without dead ends: 32 [2024-11-08 16:31:25,956 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:31:25,961 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 1 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:31:25,962 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 100 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:31:25,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-11-08 16:31:26,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2024-11-08 16:31:26,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 29 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 16:31:26,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2024-11-08 16:31:26,010 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 11 [2024-11-08 16:31:26,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:31:26,011 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2024-11-08 16:31:26,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 16:31:26,011 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2024-11-08 16:31:26,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-08 16:31:26,012 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:31:26,012 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:31:26,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 16:31:26,013 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-08 16:31:26,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:31:26,014 INFO L85 PathProgramCache]: Analyzing trace with hash 180867418, now seen corresponding path program 1 times [2024-11-08 16:31:26,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:31:26,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993483251] [2024-11-08 16:31:26,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:31:26,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:31:26,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:31:26,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 16:31:26,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:31:26,240 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:31:26,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:31:26,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993483251] [2024-11-08 16:31:26,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993483251] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:31:26,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1320639688] [2024-11-08 16:31:26,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:31:26,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:31:26,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d0bc94-93e4-430a-abee-ecb94f22392c/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:31:26,245 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d0bc94-93e4-430a-abee-ecb94f22392c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:31:26,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d0bc94-93e4-430a-abee-ecb94f22392c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 16:31:26,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:31:26,381 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 16:31:26,391 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:31:26,527 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:31:26,531 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:31:26,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1320639688] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:31:26,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 16:31:26,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-08 16:31:26,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742774763] [2024-11-08 16:31:26,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:31:26,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:31:26,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:31:26,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:31:26,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:31:26,540 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 16:31:26,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:31:26,585 INFO L93 Difference]: Finished difference Result 47 states and 53 transitions. [2024-11-08 16:31:26,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:31:26,588 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2024-11-08 16:31:26,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:31:26,589 INFO L225 Difference]: With dead ends: 47 [2024-11-08 16:31:26,589 INFO L226 Difference]: Without dead ends: 27 [2024-11-08 16:31:26,590 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:31:26,593 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:31:26,594 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 70 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:31:26,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-11-08 16:31:26,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-11-08 16:31:26,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 24 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 16:31:26,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2024-11-08 16:31:26,604 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 15 [2024-11-08 16:31:26,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:31:26,604 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2024-11-08 16:31:26,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 16:31:26,605 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2024-11-08 16:31:26,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-08 16:31:26,605 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:31:26,606 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:31:26,624 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d0bc94-93e4-430a-abee-ecb94f22392c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 16:31:26,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d0bc94-93e4-430a-abee-ecb94f22392c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-08 16:31:26,810 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-08 16:31:26,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:31:26,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1640032481, now seen corresponding path program 1 times [2024-11-08 16:31:26,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:31:26,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364704461] [2024-11-08 16:31:26,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:31:26,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:31:26,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 16:31:26,839 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 16:31:26,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 16:31:26,882 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 16:31:26,883 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 16:31:26,884 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2024-11-08 16:31:26,887 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2024-11-08 16:31:26,888 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2024-11-08 16:31:26,888 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2024-11-08 16:31:26,889 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2024-11-08 16:31:26,889 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2024-11-08 16:31:26,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 16:31:26,894 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-08 16:31:26,947 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 16:31:26,951 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 04:31:26 BoogieIcfgContainer [2024-11-08 16:31:26,951 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 16:31:26,952 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 16:31:26,953 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 16:31:26,953 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 16:31:26,954 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:31:25" (3/4) ... [2024-11-08 16:31:26,958 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 16:31:26,959 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 16:31:26,961 INFO L158 Benchmark]: Toolchain (without parser) took 4282.88ms. Allocated memory was 144.7MB in the beginning and 201.3MB in the end (delta: 56.6MB). Free memory was 109.4MB in the beginning and 150.1MB in the end (delta: -40.7MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. [2024-11-08 16:31:26,961 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 144.7MB. Free memory was 113.3MB in the beginning and 113.2MB in the end (delta: 132.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 16:31:26,962 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1825.15ms. Allocated memory is still 144.7MB. Free memory was 109.4MB in the beginning and 110.6MB in the end (delta: -1.2MB). Peak memory consumption was 74.0MB. Max. memory is 16.1GB. [2024-11-08 16:31:26,963 INFO L158 Benchmark]: Boogie Procedure Inliner took 136.50ms. Allocated memory is still 144.7MB. Free memory was 110.5MB in the beginning and 109.2MB in the end (delta: 1.3MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. [2024-11-08 16:31:26,964 INFO L158 Benchmark]: Boogie Preprocessor took 49.62ms. Allocated memory is still 144.7MB. Free memory was 109.2MB in the beginning and 107.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 16:31:26,964 INFO L158 Benchmark]: RCFGBuilder took 483.13ms. Allocated memory is still 144.7MB. Free memory was 107.5MB in the beginning and 93.7MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 16:31:26,965 INFO L158 Benchmark]: TraceAbstraction took 1772.81ms. Allocated memory was 144.7MB in the beginning and 201.3MB in the end (delta: 56.6MB). Free memory was 93.7MB in the beginning and 151.1MB in the end (delta: -57.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 16:31:26,966 INFO L158 Benchmark]: Witness Printer took 7.24ms. Allocated memory is still 201.3MB. Free memory was 151.1MB in the beginning and 150.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 16:31:26,972 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 144.7MB. Free memory was 113.3MB in the beginning and 113.2MB in the end (delta: 132.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1825.15ms. Allocated memory is still 144.7MB. Free memory was 109.4MB in the beginning and 110.6MB in the end (delta: -1.2MB). Peak memory consumption was 74.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 136.50ms. Allocated memory is still 144.7MB. Free memory was 110.5MB in the beginning and 109.2MB in the end (delta: 1.3MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.62ms. Allocated memory is still 144.7MB. Free memory was 109.2MB in the beginning and 107.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 483.13ms. Allocated memory is still 144.7MB. Free memory was 107.5MB in the beginning and 93.7MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1772.81ms. Allocated memory was 144.7MB in the beginning and 201.3MB in the end (delta: 56.6MB). Free memory was 93.7MB in the beginning and 151.1MB in the end (delta: -57.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 7.24ms. Allocated memory is still 201.3MB. Free memory was 151.1MB in the beginning and 150.1MB in the end (delta: 1.0MB). There was no memory consumed. 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 - UnprovableResult [Line: 1561]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of large string literal at line 1569. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1569] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE191_Integer_Underflow__int_min_multiply_17_bad() [L1550] int i,j; [L1551] int data; [L1552] data = 0 [L1553] i = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, i=0] [L1553] COND FALSE !(i < 1) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, i=0] [L1553] COND TRUE i < 1 [L1555] data = (-0x7fffffff - 1) [L1553] i++ VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, i=1] [L1553] COND TRUE i < 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1557] j = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, j=0] [L1557] COND FALSE !(j < 1) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, j=0] [L1557] COND TRUE j < 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, j=0] [L1559] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, j=0] [L1561] data * 2 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, j=0] - UnprovableResult [Line: 1553]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1553]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1561]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1557]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1557]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 34 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 170 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 110 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 33 IncrementalHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 60 mSDtfsCounter, 33 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 SizeOfPredicates, 0 NumberOfNonLiveVariables, 79 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 5/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 16:31:27,019 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d0bc94-93e4-430a-abee-ecb94f22392c/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d0bc94-93e4-430a-abee-ecb94f22392c/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d0bc94-93e4-430a-abee-ecb94f22392c/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d0bc94-93e4-430a-abee-ecb94f22392c/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d0bc94-93e4-430a-abee-ecb94f22392c/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_multiply_17_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d0bc94-93e4-430a-abee-ecb94f22392c/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d0bc94-93e4-430a-abee-ecb94f22392c/bin/uautomizer-verify-jihMAELWvX --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a0f9943518c6721d9e6c1d0bc444caec6ec81ec7ab33ad823efb20af4787efc7 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 16:31:30,022 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:31:30,165 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d0bc94-93e4-430a-abee-ecb94f22392c/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2024-11-08 16:31:30,176 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:31:30,176 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:31:30,177 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-11-08 16:31:30,229 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:31:30,230 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:31:30,233 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:31:30,233 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 16:31:30,234 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 16:31:30,234 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:31:30,235 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:31:30,238 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:31:30,238 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:31:30,239 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:31:30,240 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:31:30,241 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 16:31:30,241 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:31:30,246 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 16:31:30,246 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:31:30,247 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 16:31:30,247 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 16:31:30,248 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 16:31:30,248 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:31:30,248 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 16:31:30,249 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 16:31:30,249 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 16:31:30,249 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 16:31:30,250 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:31:30,252 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:31:30,253 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:31:30,253 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 16:31:30,253 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:31:30,254 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:31:30,254 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:31:30,255 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:31:30,255 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 16:31:30,255 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-08 16:31:30,255 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 16:31:30,257 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:31:30,258 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:31:30,258 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:31:30,258 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:31:30,259 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_77d0bc94-93e4-430a-abee-ecb94f22392c/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d0bc94-93e4-430a-abee-ecb94f22392c/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a0f9943518c6721d9e6c1d0bc444caec6ec81ec7ab33ad823efb20af4787efc7 [2024-11-08 16:31:30,760 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:31:30,805 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:31:30,808 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:31:30,810 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:31:30,811 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:31:30,813 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d0bc94-93e4-430a-abee-ecb94f22392c/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_multiply_17_bad.i Unable to find full path for "g++" [2024-11-08 16:31:33,529 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:31:34,035 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:31:34,036 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d0bc94-93e4-430a-abee-ecb94f22392c/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_multiply_17_bad.i [2024-11-08 16:31:34,062 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d0bc94-93e4-430a-abee-ecb94f22392c/bin/uautomizer-verify-jihMAELWvX/data/67c98815f/e60077703a684be5a625a2a32bdc8612/FLAGaf8a78ef8 [2024-11-08 16:31:34,137 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d0bc94-93e4-430a-abee-ecb94f22392c/bin/uautomizer-verify-jihMAELWvX/data/67c98815f/e60077703a684be5a625a2a32bdc8612 [2024-11-08 16:31:34,141 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:31:34,144 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:31:34,148 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:31:34,148 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:31:34,156 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:31:34,157 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:31:34" (1/1) ... [2024-11-08 16:31:34,158 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2602d225 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:31:34, skipping insertion in model container [2024-11-08 16:31:34,158 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:31:34" (1/1) ... [2024-11-08 16:31:34,270 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:31:35,669 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:31:35,691 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:31:35,894 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:31:36,124 INFO L204 MainTranslator]: Completed translation [2024-11-08 16:31:36,128 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:31:36 WrapperNode [2024-11-08 16:31:36,128 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:31:36,130 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 16:31:36,132 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 16:31:36,132 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 16:31:36,142 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:31:36" (1/1) ... [2024-11-08 16:31:36,193 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:31:36" (1/1) ... [2024-11-08 16:31:36,229 INFO L138 Inliner]: procedures = 502, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2024-11-08 16:31:36,230 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 16:31:36,231 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 16:31:36,231 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 16:31:36,231 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 16:31:36,247 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:31:36" (1/1) ... [2024-11-08 16:31:36,248 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:31:36" (1/1) ... [2024-11-08 16:31:36,256 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:31:36" (1/1) ... [2024-11-08 16:31:36,284 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-08 16:31:36,288 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:31:36" (1/1) ... [2024-11-08 16:31:36,292 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:31:36" (1/1) ... [2024-11-08 16:31:36,305 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:31:36" (1/1) ... [2024-11-08 16:31:36,312 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:31:36" (1/1) ... [2024-11-08 16:31:36,321 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:31:36" (1/1) ... [2024-11-08 16:31:36,323 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:31:36" (1/1) ... [2024-11-08 16:31:36,331 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 16:31:36,334 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 16:31:36,335 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 16:31:36,335 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 16:31:36,339 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:31:36" (1/1) ... [2024-11-08 16:31:36,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:31:36,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d0bc94-93e4-430a-abee-ecb94f22392c/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:31:36,391 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d0bc94-93e4-430a-abee-ecb94f22392c/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 16:31:36,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d0bc94-93e4-430a-abee-ecb94f22392c/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 16:31:36,429 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 16:31:36,430 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 16:31:36,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 16:31:36,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 16:31:36,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 16:31:36,667 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 16:31:36,670 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 16:31:36,930 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2024-11-08 16:31:36,930 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 16:31:36,949 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 16:31:36,950 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 16:31:36,951 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:31:36 BoogieIcfgContainer [2024-11-08 16:31:36,951 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 16:31:36,953 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 16:31:36,954 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 16:31:36,959 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 16:31:36,959 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:31:34" (1/3) ... [2024-11-08 16:31:36,961 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fd183af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:31:36, skipping insertion in model container [2024-11-08 16:31:36,961 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:31:36" (2/3) ... [2024-11-08 16:31:36,961 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fd183af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:31:36, skipping insertion in model container [2024-11-08 16:31:36,962 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:31:36" (3/3) ... [2024-11-08 16:31:36,963 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_min_multiply_17_bad.i [2024-11-08 16:31:36,988 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 16:31:36,989 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-08 16:31:37,090 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:31:37,098 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=PETRI_NET, 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;@69d23a6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:31:37,098 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-08 16:31:37,103 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 24 states have (on average 1.5) internal successors, (36), 30 states have internal predecessors, (36), 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) [2024-11-08 16:31:37,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 16:31:37,115 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:31:37,115 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:31:37,116 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-08 16:31:37,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:31:37,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1922943391, now seen corresponding path program 1 times [2024-11-08 16:31:37,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 16:31:37,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [167526164] [2024-11-08 16:31:37,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:31:37,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:31:37,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d0bc94-93e4-430a-abee-ecb94f22392c/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:31:37,138 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d0bc94-93e4-430a-abee-ecb94f22392c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:31:37,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d0bc94-93e4-430a-abee-ecb94f22392c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 16:31:37,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:31:37,290 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-08 16:31:37,295 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:31:37,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:31:37,324 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:31:37,325 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 16:31:37,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [167526164] [2024-11-08 16:31:37,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [167526164] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:31:37,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:31:37,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-08 16:31:37,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244005399] [2024-11-08 16:31:37,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:31:37,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 16:31:37,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 16:31:37,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 16:31:37,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 16:31:37,371 INFO L87 Difference]: Start difference. First operand has 34 states, 24 states have (on average 1.5) internal successors, (36), 30 states have internal predecessors, (36), 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 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 16:31:37,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:31:37,392 INFO L93 Difference]: Finished difference Result 34 states and 40 transitions. [2024-11-08 16:31:37,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 16:31:37,395 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-11-08 16:31:37,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:31:37,405 INFO L225 Difference]: With dead ends: 34 [2024-11-08 16:31:37,405 INFO L226 Difference]: Without dead ends: 26 [2024-11-08 16:31:37,409 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 16:31:37,418 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:31:37,420 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:31:37,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-08 16:31:37,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2024-11-08 16:31:37,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 20 states have (on average 1.4) internal successors, (28), 23 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 16:31:37,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2024-11-08 16:31:37,471 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 11 [2024-11-08 16:31:37,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:31:37,471 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2024-11-08 16:31:37,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 16:31:37,472 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2024-11-08 16:31:37,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-08 16:31:37,473 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:31:37,473 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:31:37,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d0bc94-93e4-430a-abee-ecb94f22392c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 16:31:37,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d0bc94-93e4-430a-abee-ecb94f22392c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:31:37,675 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-08 16:31:37,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:31:37,676 INFO L85 PathProgramCache]: Analyzing trace with hash 518297078, now seen corresponding path program 1 times [2024-11-08 16:31:37,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 16:31:37,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1418354944] [2024-11-08 16:31:37,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:31:37,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:31:37,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d0bc94-93e4-430a-abee-ecb94f22392c/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:31:37,680 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d0bc94-93e4-430a-abee-ecb94f22392c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:31:37,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d0bc94-93e4-430a-abee-ecb94f22392c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 16:31:37,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:31:37,831 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 16:31:37,833 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:31:37,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:31:37,925 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:31:37,925 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 16:31:37,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1418354944] [2024-11-08 16:31:37,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1418354944] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:31:37,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:31:37,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:31:37,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381526643] [2024-11-08 16:31:37,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:31:37,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:31:37,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 16:31:37,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:31:37,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:31:37,935 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 16:31:37,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:31:37,992 INFO L93 Difference]: Finished difference Result 44 states and 51 transitions. [2024-11-08 16:31:37,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:31:37,993 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2024-11-08 16:31:37,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:31:37,994 INFO L225 Difference]: With dead ends: 44 [2024-11-08 16:31:37,994 INFO L226 Difference]: Without dead ends: 30 [2024-11-08 16:31:37,995 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:31:37,999 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:31:38,000 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 73 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:31:38,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-11-08 16:31:38,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2024-11-08 16:31:38,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 27 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 16:31:38,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2024-11-08 16:31:38,013 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 12 [2024-11-08 16:31:38,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:31:38,014 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2024-11-08 16:31:38,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 16:31:38,014 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2024-11-08 16:31:38,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-08 16:31:38,015 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:31:38,015 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:31:38,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d0bc94-93e4-430a-abee-ecb94f22392c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-08 16:31:38,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d0bc94-93e4-430a-abee-ecb94f22392c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:31:38,220 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-08 16:31:38,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:31:38,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1311922717, now seen corresponding path program 1 times [2024-11-08 16:31:38,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 16:31:38,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1281249256] [2024-11-08 16:31:38,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:31:38,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:31:38,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d0bc94-93e4-430a-abee-ecb94f22392c/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:31:38,225 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d0bc94-93e4-430a-abee-ecb94f22392c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:31:38,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d0bc94-93e4-430a-abee-ecb94f22392c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 16:31:38,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:31:38,362 INFO L255 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 16:31:38,364 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:31:38,426 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:31:38,426 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:31:38,530 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:31:38,530 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 16:31:38,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1281249256] [2024-11-08 16:31:38,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1281249256] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:31:38,531 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 16:31:38,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-08 16:31:38,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383967853] [2024-11-08 16:31:38,532 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 16:31:38,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 16:31:38,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 16:31:38,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 16:31:38,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:31:38,535 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 16:31:38,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:31:38,585 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2024-11-08 16:31:38,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:31:38,587 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2024-11-08 16:31:38,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:31:38,588 INFO L225 Difference]: With dead ends: 44 [2024-11-08 16:31:38,588 INFO L226 Difference]: Without dead ends: 26 [2024-11-08 16:31:38,589 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:31:38,590 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 0 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:31:38,591 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 133 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:31:38,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-08 16:31:38,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2024-11-08 16:31:38,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 23 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 16:31:38,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2024-11-08 16:31:38,599 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 16 [2024-11-08 16:31:38,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:31:38,599 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2024-11-08 16:31:38,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 16:31:38,600 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2024-11-08 16:31:38,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-08 16:31:38,601 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:31:38,602 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:31:38,630 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d0bc94-93e4-430a-abee-ecb94f22392c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 16:31:38,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d0bc94-93e4-430a-abee-ecb94f22392c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:31:38,807 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-08 16:31:38,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:31:38,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1640032481, now seen corresponding path program 1 times [2024-11-08 16:31:38,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 16:31:38,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [584284794] [2024-11-08 16:31:38,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:31:38,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:31:38,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d0bc94-93e4-430a-abee-ecb94f22392c/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:31:38,817 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d0bc94-93e4-430a-abee-ecb94f22392c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:31:38,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d0bc94-93e4-430a-abee-ecb94f22392c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 16:31:38,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 16:31:38,945 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 16:31:38,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 16:31:39,010 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-08 16:31:39,010 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 16:31:39,012 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2024-11-08 16:31:39,015 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2024-11-08 16:31:39,015 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2024-11-08 16:31:39,016 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2024-11-08 16:31:39,016 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2024-11-08 16:31:39,017 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2024-11-08 16:31:39,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d0bc94-93e4-430a-abee-ecb94f22392c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-08 16:31:39,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d0bc94-93e4-430a-abee-ecb94f22392c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:31:39,222 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-08 16:31:39,277 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 16:31:39,286 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 04:31:39 BoogieIcfgContainer [2024-11-08 16:31:39,287 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 16:31:39,288 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 16:31:39,288 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 16:31:39,289 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 16:31:39,289 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:31:36" (3/4) ... [2024-11-08 16:31:39,293 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 16:31:39,295 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 16:31:39,299 INFO L158 Benchmark]: Toolchain (without parser) took 5152.41ms. Allocated memory was 65.0MB in the beginning and 119.5MB in the end (delta: 54.5MB). Free memory was 37.3MB in the beginning and 68.9MB in the end (delta: -31.6MB). Peak memory consumption was 23.9MB. Max. memory is 16.1GB. [2024-11-08 16:31:39,300 INFO L158 Benchmark]: CDTParser took 1.71ms. Allocated memory is still 65.0MB. Free memory was 40.9MB in the beginning and 40.8MB in the end (delta: 81.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 16:31:39,301 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1981.22ms. Allocated memory was 65.0MB in the beginning and 90.2MB in the end (delta: 25.2MB). Free memory was 37.2MB in the beginning and 56.8MB in the end (delta: -19.7MB). Peak memory consumption was 33.8MB. Max. memory is 16.1GB. [2024-11-08 16:31:39,302 INFO L158 Benchmark]: Boogie Procedure Inliner took 100.09ms. Allocated memory is still 90.2MB. Free memory was 56.8MB in the beginning and 54.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 16:31:39,303 INFO L158 Benchmark]: Boogie Preprocessor took 103.10ms. Allocated memory is still 90.2MB. Free memory was 54.1MB in the beginning and 51.5MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 16:31:39,303 INFO L158 Benchmark]: RCFGBuilder took 616.69ms. Allocated memory is still 90.2MB. Free memory was 51.1MB in the beginning and 37.5MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-08 16:31:39,308 INFO L158 Benchmark]: TraceAbstraction took 2333.90ms. Allocated memory was 90.2MB in the beginning and 119.5MB in the end (delta: 29.4MB). Free memory was 36.4MB in the beginning and 69.6MB in the end (delta: -33.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 16:31:39,308 INFO L158 Benchmark]: Witness Printer took 7.38ms. Allocated memory is still 119.5MB. Free memory was 69.6MB in the beginning and 68.9MB in the end (delta: 699.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 16:31:39,311 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.71ms. Allocated memory is still 65.0MB. Free memory was 40.9MB in the beginning and 40.8MB in the end (delta: 81.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1981.22ms. Allocated memory was 65.0MB in the beginning and 90.2MB in the end (delta: 25.2MB). Free memory was 37.2MB in the beginning and 56.8MB in the end (delta: -19.7MB). Peak memory consumption was 33.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 100.09ms. Allocated memory is still 90.2MB. Free memory was 56.8MB in the beginning and 54.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 103.10ms. Allocated memory is still 90.2MB. Free memory was 54.1MB in the beginning and 51.5MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 616.69ms. Allocated memory is still 90.2MB. Free memory was 51.1MB in the beginning and 37.5MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2333.90ms. Allocated memory was 90.2MB in the beginning and 119.5MB in the end (delta: 29.4MB). Free memory was 36.4MB in the beginning and 69.6MB in the end (delta: -33.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 7.38ms. Allocated memory is still 119.5MB. Free memory was 69.6MB in the beginning and 68.9MB in the end (delta: 699.5kB). There was no memory consumed. 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 - UnprovableResult [Line: 1561]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of large string literal at line 1569. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1569] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE191_Integer_Underflow__int_min_multiply_17_bad() [L1550] int i,j; [L1551] int data; [L1552] data = 0 [L1553] i = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, i=0] [L1553] COND FALSE !(i < 1) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, i=0] [L1553] COND TRUE i < 1 [L1555] data = (-0x7fffffff - 1) [L1553] i++ VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, i=1] [L1553] COND TRUE i < 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1557] j = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, j=0] [L1557] COND FALSE !(j < 1) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, j=0] [L1557] COND TRUE j < 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, j=0] [L1559] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, j=0] [L1561] data * 2 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, j=0] - UnprovableResult [Line: 1553]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1553]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1561]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1557]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1557]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 34 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 244 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 157 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 41 IncrementalHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 87 mSDtfsCounter, 41 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 92 SizeOfPredicates, 0 NumberOfNonLiveVariables, 129 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 6/8 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 16:31:39,361 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d0bc94-93e4-430a-abee-ecb94f22392c/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample