./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_08_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec67618-46bb-4370-9eca-5e43bebc66ab/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec67618-46bb-4370-9eca-5e43bebc66ab/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec67618-46bb-4370-9eca-5e43bebc66ab/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec67618-46bb-4370-9eca-5e43bebc66ab/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_08_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec67618-46bb-4370-9eca-5e43bebc66ab/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec67618-46bb-4370-9eca-5e43bebc66ab/bin/uautomizer-verify-qhAvR1uOyd --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 2e4fb4b63bcdd58b6328d3d8ac7e686ad7215cae7de56dced0453676ba573c19 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 14:00:59,666 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 14:00:59,741 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec67618-46bb-4370-9eca-5e43bebc66ab/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-13 14:00:59,748 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 14:00:59,748 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 14:00:59,777 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 14:00:59,778 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 14:00:59,778 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 14:00:59,779 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 14:00:59,779 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 14:00:59,779 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 14:00:59,779 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 14:00:59,780 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 14:00:59,780 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 14:00:59,780 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 14:00:59,780 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 14:00:59,780 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 14:00:59,781 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 14:00:59,781 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 14:00:59,781 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 14:00:59,781 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 14:00:59,781 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 14:00:59,782 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 14:00:59,782 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 14:00:59,782 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 14:00:59,782 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 14:00:59,782 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 14:00:59,783 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 14:00:59,783 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 14:00:59,783 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 14:00:59,783 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 14:00:59,783 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:00:59,784 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 14:00:59,784 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 14:00:59,784 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 14:00:59,784 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 14:00:59,784 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 14:00:59,784 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 14:00:59,785 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 14:00:59,785 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 14:00:59,785 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 14:00:59,785 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_3ec67618-46bb-4370-9eca-5e43bebc66ab/bin/uautomizer-verify-qhAvR1uOyd 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 -> 2e4fb4b63bcdd58b6328d3d8ac7e686ad7215cae7de56dced0453676ba573c19 [2024-11-13 14:01:00,208 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 14:01:00,226 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 14:01:00,231 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 14:01:00,233 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 14:01:00,234 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 14:01:00,237 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec67618-46bb-4370-9eca-5e43bebc66ab/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_08_bad.i Unable to find full path for "g++" [2024-11-13 14:01:02,638 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 14:01:03,159 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 14:01:03,160 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec67618-46bb-4370-9eca-5e43bebc66ab/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_08_bad.i [2024-11-13 14:01:03,200 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec67618-46bb-4370-9eca-5e43bebc66ab/bin/uautomizer-verify-qhAvR1uOyd/data/f4ea1b018/8e0252ae660e4df99f2aec993d268bcd/FLAG3a62ccfac [2024-11-13 14:01:03,218 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec67618-46bb-4370-9eca-5e43bebc66ab/bin/uautomizer-verify-qhAvR1uOyd/data/f4ea1b018/8e0252ae660e4df99f2aec993d268bcd [2024-11-13 14:01:03,221 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 14:01:03,223 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 14:01:03,224 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 14:01:03,224 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 14:01:03,230 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 14:01:03,231 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:01:03" (1/1) ... [2024-11-13 14:01:03,232 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@429c7c3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:01:03, skipping insertion in model container [2024-11-13 14:01:03,232 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:01:03" (1/1) ... [2024-11-13 14:01:03,285 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 14:01:04,573 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:01:04,584 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 14:01:04,754 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:01:04,958 INFO L204 MainTranslator]: Completed translation [2024-11-13 14:01:04,960 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:01:04 WrapperNode [2024-11-13 14:01:04,960 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 14:01:04,962 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 14:01:04,962 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 14:01:04,963 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 14:01:04,971 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:01:04" (1/1) ... [2024-11-13 14:01:05,013 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:01:04" (1/1) ... [2024-11-13 14:01:05,055 INFO L138 Inliner]: procedures = 499, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 109 [2024-11-13 14:01:05,056 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 14:01:05,057 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 14:01:05,058 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 14:01:05,058 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 14:01:05,068 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:01:04" (1/1) ... [2024-11-13 14:01:05,069 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:01:04" (1/1) ... [2024-11-13 14:01:05,075 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:01:04" (1/1) ... [2024-11-13 14:01:05,097 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-13 14:01:05,101 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:01:04" (1/1) ... [2024-11-13 14:01:05,102 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:01:04" (1/1) ... [2024-11-13 14:01:05,116 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:01:04" (1/1) ... [2024-11-13 14:01:05,121 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:01:04" (1/1) ... [2024-11-13 14:01:05,123 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:01:04" (1/1) ... [2024-11-13 14:01:05,124 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:01:04" (1/1) ... [2024-11-13 14:01:05,126 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 14:01:05,127 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 14:01:05,127 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 14:01:05,128 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 14:01:05,129 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:01:04" (1/1) ... [2024-11-13 14:01:05,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:01:05,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec67618-46bb-4370-9eca-5e43bebc66ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:01:05,165 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec67618-46bb-4370-9eca-5e43bebc66ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 14:01:05,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec67618-46bb-4370-9eca-5e43bebc66ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 14:01:05,194 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 14:01:05,194 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 14:01:05,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 14:01:05,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 14:01:05,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 14:01:05,195 INFO L130 BoogieDeclarations]: Found specification of procedure staticReturnsTrue [2024-11-13 14:01:05,195 INFO L138 BoogieDeclarations]: Found implementation of procedure staticReturnsTrue [2024-11-13 14:01:05,387 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 14:01:05,390 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 14:01:05,734 INFO L? ?]: Removed 56 outVars from TransFormulas that were not future-live. [2024-11-13 14:01:05,736 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 14:01:05,750 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 14:01:05,750 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 14:01:05,750 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:01:05 BoogieIcfgContainer [2024-11-13 14:01:05,751 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 14:01:05,753 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 14:01:05,753 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 14:01:05,759 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 14:01:05,759 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:01:03" (1/3) ... [2024-11-13 14:01:05,760 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@700c4751 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:01:05, skipping insertion in model container [2024-11-13 14:01:05,760 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:01:04" (2/3) ... [2024-11-13 14:01:05,761 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@700c4751 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:01:05, skipping insertion in model container [2024-11-13 14:01:05,761 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:01:05" (3/3) ... [2024-11-13 14:01:05,762 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_postdec_08_bad.i [2024-11-13 14:01:05,781 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 14:01:05,783 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_rand_postdec_08_bad.i that has 3 procedures, 50 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-11-13 14:01:05,846 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 14:01:05,863 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;@2327fa4e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 14:01:05,864 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-13 14:01:05,870 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 41 states have (on average 1.4390243902439024) internal successors, (59), 43 states have internal predecessors, (59), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 14:01:05,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-13 14:01:05,881 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:01:05,882 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:01:05,883 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-13 14:01:05,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:01:05,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1648115636, now seen corresponding path program 1 times [2024-11-13 14:01:05,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:01:05,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822565209] [2024-11-13 14:01:05,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:01:05,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:01:06,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:01:06,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:01:06,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:01:06,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:01:06,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:01:06,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-13 14:01:06,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:01:06,384 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 14:01:06,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:01:06,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822565209] [2024-11-13 14:01:06,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822565209] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:01:06,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1761355272] [2024-11-13 14:01:06,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:01:06,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:01:06,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec67618-46bb-4370-9eca-5e43bebc66ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:01:06,394 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec67618-46bb-4370-9eca-5e43bebc66ab/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:01:06,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec67618-46bb-4370-9eca-5e43bebc66ab/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 14:01:06,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:01:06,537 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 14:01:06,542 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:01:06,610 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:01:06,612 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:01:06,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1761355272] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:01:06,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:01:06,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-13 14:01:06,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016775565] [2024-11-13 14:01:06,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:01:06,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:01:06,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:01:06,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:01:06,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:01:06,654 INFO L87 Difference]: Start difference. First operand has 50 states, 41 states have (on average 1.4390243902439024) internal successors, (59), 43 states have internal predecessors, (59), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-13 14:01:06,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:01:06,707 INFO L93 Difference]: Finished difference Result 71 states and 89 transitions. [2024-11-13 14:01:06,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:01:06,711 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 21 [2024-11-13 14:01:06,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:01:06,719 INFO L225 Difference]: With dead ends: 71 [2024-11-13 14:01:06,720 INFO L226 Difference]: Without dead ends: 43 [2024-11-13 14:01:06,724 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:01:06,729 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 0 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:01:06,732 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 187 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:01:06,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-11-13 14:01:06,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2024-11-13 14:01:06,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 36 states have (on average 1.4166666666666667) internal successors, (51), 37 states have internal predecessors, (51), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 14:01:06,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 57 transitions. [2024-11-13 14:01:06,792 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 57 transitions. Word has length 21 [2024-11-13 14:01:06,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:01:06,795 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 57 transitions. [2024-11-13 14:01:06,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-13 14:01:06,797 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 57 transitions. [2024-11-13 14:01:06,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-13 14:01:06,801 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:01:06,801 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:01:06,827 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec67618-46bb-4370-9eca-5e43bebc66ab/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-13 14:01:07,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec67618-46bb-4370-9eca-5e43bebc66ab/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-13 14:01:07,006 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-13 14:01:07,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:01:07,007 INFO L85 PathProgramCache]: Analyzing trace with hash 10447351, now seen corresponding path program 1 times [2024-11-13 14:01:07,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:01:07,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059736925] [2024-11-13 14:01:07,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:01:07,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:01:07,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:01:07,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:01:07,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:01:07,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:01:07,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:01:07,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-13 14:01:07,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:01:07,568 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-13 14:01:07,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:01:07,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059736925] [2024-11-13 14:01:07,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059736925] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:01:07,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:01:07,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 14:01:07,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628828317] [2024-11-13 14:01:07,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:01:07,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:01:07,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:01:07,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:01:07,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:01:07,571 INFO L87 Difference]: Start difference. First operand 43 states and 57 transitions. Second operand has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 7 states have internal predecessors, (19), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-13 14:01:07,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:01:07,716 INFO L93 Difference]: Finished difference Result 51 states and 66 transitions. [2024-11-13 14:01:07,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 14:01:07,716 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 7 states have internal predecessors, (19), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 27 [2024-11-13 14:01:07,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:01:07,718 INFO L225 Difference]: With dead ends: 51 [2024-11-13 14:01:07,718 INFO L226 Difference]: Without dead ends: 50 [2024-11-13 14:01:07,718 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-13 14:01:07,719 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 41 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:01:07,720 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 261 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:01:07,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-11-13 14:01:07,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 49. [2024-11-13 14:01:07,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 41 states have (on average 1.3658536585365855) internal successors, (56), 42 states have internal predecessors, (56), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 14:01:07,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 64 transitions. [2024-11-13 14:01:07,734 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 64 transitions. Word has length 27 [2024-11-13 14:01:07,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:01:07,734 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 64 transitions. [2024-11-13 14:01:07,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 7 states have internal predecessors, (19), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-13 14:01:07,734 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 64 transitions. [2024-11-13 14:01:07,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-13 14:01:07,735 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:01:07,735 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:01:07,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 14:01:07,736 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-13 14:01:07,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:01:07,739 INFO L85 PathProgramCache]: Analyzing trace with hash -344802659, now seen corresponding path program 1 times [2024-11-13 14:01:07,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:01:07,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094355404] [2024-11-13 14:01:07,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:01:07,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:01:07,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:01:07,776 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 14:01:07,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:01:07,818 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 14:01:07,819 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 14:01:07,820 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-13 14:01:07,825 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-13 14:01:07,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 14:01:07,832 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-13 14:01:07,864 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 14:01:07,869 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 02:01:07 BoogieIcfgContainer [2024-11-13 14:01:07,869 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 14:01:07,870 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 14:01:07,870 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 14:01:07,870 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 14:01:07,873 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:01:05" (3/4) ... [2024-11-13 14:01:07,876 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 14:01:07,877 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 14:01:07,879 INFO L158 Benchmark]: Toolchain (without parser) took 4655.78ms. Allocated memory is still 142.6MB. Free memory was 115.7MB in the beginning and 73.1MB in the end (delta: 42.6MB). Peak memory consumption was 41.3MB. Max. memory is 16.1GB. [2024-11-13 14:01:07,879 INFO L158 Benchmark]: CDTParser took 0.60ms. Allocated memory is still 142.6MB. Free memory is still 80.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:01:07,879 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1737.29ms. Allocated memory is still 142.6MB. Free memory was 115.5MB in the beginning and 105.9MB in the end (delta: 9.6MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. [2024-11-13 14:01:07,880 INFO L158 Benchmark]: Boogie Procedure Inliner took 93.96ms. Allocated memory is still 142.6MB. Free memory was 105.9MB in the beginning and 103.2MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 14:01:07,880 INFO L158 Benchmark]: Boogie Preprocessor took 69.88ms. Allocated memory is still 142.6MB. Free memory was 103.2MB in the beginning and 101.4MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:01:07,880 INFO L158 Benchmark]: RCFGBuilder took 623.61ms. Allocated memory is still 142.6MB. Free memory was 101.4MB in the beginning and 85.5MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 14:01:07,881 INFO L158 Benchmark]: TraceAbstraction took 2115.89ms. Allocated memory is still 142.6MB. Free memory was 84.9MB in the beginning and 73.1MB in the end (delta: 11.8MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2024-11-13 14:01:07,884 INFO L158 Benchmark]: Witness Printer took 7.80ms. Allocated memory is still 142.6MB. Free memory was 73.1MB in the beginning and 73.1MB in the end (delta: 15.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:01:07,886 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60ms. Allocated memory is still 142.6MB. Free memory is still 80.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1737.29ms. Allocated memory is still 142.6MB. Free memory was 115.5MB in the beginning and 105.9MB in the end (delta: 9.6MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 93.96ms. Allocated memory is still 142.6MB. Free memory was 105.9MB in the beginning and 103.2MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.88ms. Allocated memory is still 142.6MB. Free memory was 103.2MB in the beginning and 101.4MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 623.61ms. Allocated memory is still 142.6MB. Free memory was 101.4MB in the beginning and 85.5MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2115.89ms. Allocated memory is still 142.6MB. Free memory was 84.9MB in the beginning and 73.1MB in the end (delta: 11.8MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. * Witness Printer took 7.80ms. Allocated memory is still 142.6MB. Free memory was 73.1MB in the beginning and 73.1MB in the end (delta: 15.6kB). 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: 1567]: 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 1576. 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] [L1576] 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) [L1576] 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] [L1577] CALL CWE191_Integer_Underflow__int_rand_postdec_08_bad() [L1558] int data; [L1559] data = 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] [L1560] CALL staticReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1550] return 1; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \result=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] RET staticReturnsTrue() 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] [L1560] COND TRUE staticReturnsTrue() [L1562] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1562] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) 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] [L1562] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand() 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] [L1562] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 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] [L1562] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1564] CALL staticReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1550] return 1; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \result=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1564] RET staticReturnsTrue() 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] [L1564] COND TRUE staticReturnsTrue() [L1567] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1567]: 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 3 procedures, 50 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 42 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 41 mSDsluCounter, 448 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 333 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 70 IncrementalHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 115 mSDtfsCounter, 70 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred 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: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 66 ConstructedInterpolants, 0 QuantifiedInterpolants, 110 SizeOfPredicates, 0 NumberOfNonLiveVariables, 86 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 7/9 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 [2024-11-13 14:01:07,917 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec67618-46bb-4370-9eca-5e43bebc66ab/bin/uautomizer-verify-qhAvR1uOyd/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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec67618-46bb-4370-9eca-5e43bebc66ab/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec67618-46bb-4370-9eca-5e43bebc66ab/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec67618-46bb-4370-9eca-5e43bebc66ab/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec67618-46bb-4370-9eca-5e43bebc66ab/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_08_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec67618-46bb-4370-9eca-5e43bebc66ab/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec67618-46bb-4370-9eca-5e43bebc66ab/bin/uautomizer-verify-qhAvR1uOyd --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 2e4fb4b63bcdd58b6328d3d8ac7e686ad7215cae7de56dced0453676ba573c19 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 14:01:11,051 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 14:01:11,211 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec67618-46bb-4370-9eca-5e43bebc66ab/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2024-11-13 14:01:11,226 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 14:01:11,226 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 14:01:11,230 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-11-13 14:01:11,298 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 14:01:11,303 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 14:01:11,303 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 14:01:11,303 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 14:01:11,303 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 14:01:11,304 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 14:01:11,304 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 14:01:11,304 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 14:01:11,304 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 14:01:11,304 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 14:01:11,305 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 14:01:11,305 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 14:01:11,305 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 14:01:11,305 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 14:01:11,305 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 14:01:11,305 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 14:01:11,306 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 14:01:11,306 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 14:01:11,306 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 14:01:11,306 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 14:01:11,308 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 14:01:11,308 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 14:01:11,309 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 14:01:11,309 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 14:01:11,309 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 14:01:11,309 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 14:01:11,309 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 14:01:11,309 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 14:01:11,310 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:01:11,310 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 14:01:11,311 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 14:01:11,311 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 14:01:11,311 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-13 14:01:11,311 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 14:01:11,311 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 14:01:11,311 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 14:01:11,311 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 14:01:11,311 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 14:01:11,311 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_3ec67618-46bb-4370-9eca-5e43bebc66ab/bin/uautomizer-verify-qhAvR1uOyd 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 -> 2e4fb4b63bcdd58b6328d3d8ac7e686ad7215cae7de56dced0453676ba573c19 [2024-11-13 14:01:11,690 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 14:01:11,706 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 14:01:11,709 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 14:01:11,711 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 14:01:11,711 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 14:01:11,712 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec67618-46bb-4370-9eca-5e43bebc66ab/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_08_bad.i Unable to find full path for "g++" [2024-11-13 14:01:13,890 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 14:01:14,502 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 14:01:14,503 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec67618-46bb-4370-9eca-5e43bebc66ab/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_08_bad.i [2024-11-13 14:01:14,549 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec67618-46bb-4370-9eca-5e43bebc66ab/bin/uautomizer-verify-qhAvR1uOyd/data/6b308bc87/446edaca88e142cb8ff3a68be22e878d/FLAGf426fa140 [2024-11-13 14:01:14,579 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec67618-46bb-4370-9eca-5e43bebc66ab/bin/uautomizer-verify-qhAvR1uOyd/data/6b308bc87/446edaca88e142cb8ff3a68be22e878d [2024-11-13 14:01:14,586 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 14:01:14,588 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 14:01:14,589 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 14:01:14,590 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 14:01:14,597 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 14:01:14,597 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:01:14" (1/1) ... [2024-11-13 14:01:14,599 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@531f16c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:01:14, skipping insertion in model container [2024-11-13 14:01:14,599 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:01:14" (1/1) ... [2024-11-13 14:01:14,682 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 14:01:15,938 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:01:15,950 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 14:01:16,131 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:01:16,313 INFO L204 MainTranslator]: Completed translation [2024-11-13 14:01:16,314 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:01:16 WrapperNode [2024-11-13 14:01:16,314 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 14:01:16,316 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 14:01:16,316 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 14:01:16,316 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 14:01:16,326 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:01:16" (1/1) ... [2024-11-13 14:01:16,357 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:01:16" (1/1) ... [2024-11-13 14:01:16,385 INFO L138 Inliner]: procedures = 504, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 67 [2024-11-13 14:01:16,389 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 14:01:16,390 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 14:01:16,390 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 14:01:16,390 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 14:01:16,403 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:01:16" (1/1) ... [2024-11-13 14:01:16,404 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:01:16" (1/1) ... [2024-11-13 14:01:16,407 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:01:16" (1/1) ... [2024-11-13 14:01:16,430 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-13 14:01:16,434 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:01:16" (1/1) ... [2024-11-13 14:01:16,435 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:01:16" (1/1) ... [2024-11-13 14:01:16,454 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:01:16" (1/1) ... [2024-11-13 14:01:16,456 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:01:16" (1/1) ... [2024-11-13 14:01:16,463 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:01:16" (1/1) ... [2024-11-13 14:01:16,468 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:01:16" (1/1) ... [2024-11-13 14:01:16,472 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 14:01:16,473 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 14:01:16,473 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 14:01:16,473 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 14:01:16,474 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:01:16" (1/1) ... [2024-11-13 14:01:16,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:01:16,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec67618-46bb-4370-9eca-5e43bebc66ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:01:16,530 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec67618-46bb-4370-9eca-5e43bebc66ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 14:01:16,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec67618-46bb-4370-9eca-5e43bebc66ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 14:01:16,568 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 14:01:16,568 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 14:01:16,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 14:01:16,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 14:01:16,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 14:01:16,570 INFO L130 BoogieDeclarations]: Found specification of procedure staticReturnsTrue [2024-11-13 14:01:16,570 INFO L138 BoogieDeclarations]: Found implementation of procedure staticReturnsTrue [2024-11-13 14:01:16,805 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 14:01:16,808 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 14:01:16,964 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-11-13 14:01:16,965 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 14:01:16,976 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 14:01:16,977 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 14:01:16,977 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:01:16 BoogieIcfgContainer [2024-11-13 14:01:16,977 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 14:01:16,980 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 14:01:16,981 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 14:01:16,986 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 14:01:16,987 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:01:14" (1/3) ... [2024-11-13 14:01:16,988 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@673b1be8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:01:16, skipping insertion in model container [2024-11-13 14:01:16,988 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:01:16" (2/3) ... [2024-11-13 14:01:16,988 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@673b1be8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:01:16, skipping insertion in model container [2024-11-13 14:01:16,989 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:01:16" (3/3) ... [2024-11-13 14:01:16,990 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_postdec_08_bad.i [2024-11-13 14:01:17,005 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 14:01:17,007 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_rand_postdec_08_bad.i that has 3 procedures, 28 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-11-13 14:01:17,070 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 14:01:17,087 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;@2b022d03, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 14:01:17,087 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-13 14:01:17,092 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 21 states have internal predecessors, (25), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 14:01:17,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-13 14:01:17,101 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:01:17,101 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:01:17,102 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-13 14:01:17,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:01:17,106 INFO L85 PathProgramCache]: Analyzing trace with hash -894708504, now seen corresponding path program 1 times [2024-11-13 14:01:17,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:01:17,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2051775633] [2024-11-13 14:01:17,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:01:17,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:01:17,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec67618-46bb-4370-9eca-5e43bebc66ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:01:17,119 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec67618-46bb-4370-9eca-5e43bebc66ab/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:01:17,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec67618-46bb-4370-9eca-5e43bebc66ab/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 14:01:17,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:01:17,305 INFO L255 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 14:01:17,310 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:01:17,465 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:01:17,465 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:01:17,465 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:01:17,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2051775633] [2024-11-13 14:01:17,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2051775633] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:01:17,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:01:17,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 14:01:17,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69986438] [2024-11-13 14:01:17,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:01:17,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:01:17,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:01:17,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:01:17,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:01:17,496 INFO L87 Difference]: Start difference. First operand has 28 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 21 states have internal predecessors, (25), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-13 14:01:17,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:01:17,532 INFO L93 Difference]: Finished difference Result 47 states and 54 transitions. [2024-11-13 14:01:17,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:01:17,535 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 19 [2024-11-13 14:01:17,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:01:17,541 INFO L225 Difference]: With dead ends: 47 [2024-11-13 14:01:17,541 INFO L226 Difference]: Without dead ends: 19 [2024-11-13 14:01:17,544 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:01:17,547 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 0 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:01:17,548 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 85 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:01:17,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2024-11-13 14:01:17,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2024-11-13 14:01:17,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 states have internal predecessors, (15), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 14:01:17,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2024-11-13 14:01:17,582 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 19 [2024-11-13 14:01:17,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:01:17,584 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2024-11-13 14:01:17,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-13 14:01:17,584 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2024-11-13 14:01:17,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-13 14:01:17,585 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:01:17,586 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:01:17,607 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec67618-46bb-4370-9eca-5e43bebc66ab/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 14:01:17,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec67618-46bb-4370-9eca-5e43bebc66ab/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:01:17,792 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-13 14:01:17,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:01:17,792 INFO L85 PathProgramCache]: Analyzing trace with hash 2082070403, now seen corresponding path program 1 times [2024-11-13 14:01:17,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:01:17,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1186969283] [2024-11-13 14:01:17,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:01:17,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:01:17,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec67618-46bb-4370-9eca-5e43bebc66ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:01:17,796 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec67618-46bb-4370-9eca-5e43bebc66ab/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:01:17,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec67618-46bb-4370-9eca-5e43bebc66ab/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 14:01:17,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:01:17,936 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 14:01:17,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:01:18,032 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-13 14:01:18,033 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 14:01:18,035 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-13 14:01:18,037 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-13 14:01:18,060 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec67618-46bb-4370-9eca-5e43bebc66ab/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 14:01:18,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec67618-46bb-4370-9eca-5e43bebc66ab/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:01:18,241 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-13 14:01:18,274 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 14:01:18,278 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 02:01:18 BoogieIcfgContainer [2024-11-13 14:01:18,278 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 14:01:18,279 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 14:01:18,279 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 14:01:18,279 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 14:01:18,280 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:01:16" (3/4) ... [2024-11-13 14:01:18,283 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 14:01:18,284 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 14:01:18,285 INFO L158 Benchmark]: Toolchain (without parser) took 3696.91ms. Allocated memory is still 117.4MB. Free memory was 89.1MB in the beginning and 70.3MB in the end (delta: 18.8MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. [2024-11-13 14:01:18,285 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 117.4MB. Free memory is still 83.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:01:18,285 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1725.40ms. Allocated memory is still 117.4MB. Free memory was 88.9MB in the beginning and 68.2MB in the end (delta: 20.7MB). Peak memory consumption was 50.2MB. Max. memory is 16.1GB. [2024-11-13 14:01:18,286 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.64ms. Allocated memory is still 117.4MB. Free memory was 68.2MB in the beginning and 65.2MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:01:18,286 INFO L158 Benchmark]: Boogie Preprocessor took 81.99ms. Allocated memory is still 117.4MB. Free memory was 65.2MB in the beginning and 63.2MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:01:18,287 INFO L158 Benchmark]: RCFGBuilder took 504.76ms. Allocated memory is still 117.4MB. Free memory was 63.2MB in the beginning and 50.0MB in the end (delta: 13.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 14:01:18,287 INFO L158 Benchmark]: TraceAbstraction took 1297.66ms. Allocated memory is still 117.4MB. Free memory was 49.5MB in the beginning and 70.7MB in the end (delta: -21.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:01:18,287 INFO L158 Benchmark]: Witness Printer took 5.05ms. Allocated memory is still 117.4MB. Free memory was 70.4MB in the beginning and 70.3MB in the end (delta: 35.5kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 14:01:18,290 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 117.4MB. Free memory is still 83.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1725.40ms. Allocated memory is still 117.4MB. Free memory was 88.9MB in the beginning and 68.2MB in the end (delta: 20.7MB). Peak memory consumption was 50.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.64ms. Allocated memory is still 117.4MB. Free memory was 68.2MB in the beginning and 65.2MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 81.99ms. Allocated memory is still 117.4MB. Free memory was 65.2MB in the beginning and 63.2MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 504.76ms. Allocated memory is still 117.4MB. Free memory was 63.2MB in the beginning and 50.0MB in the end (delta: 13.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1297.66ms. Allocated memory is still 117.4MB. Free memory was 49.5MB in the beginning and 70.7MB in the end (delta: -21.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.05ms. Allocated memory is still 117.4MB. Free memory was 70.4MB in the beginning and 70.3MB in the end (delta: 35.5kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1567]: 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 1576. 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] [L1576] 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) [L1576] 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] [L1577] CALL CWE191_Integer_Underflow__int_rand_postdec_08_bad() [L1558] int data; [L1559] data = 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] [L1560] CALL staticReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1550] return 1; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \result=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] RET staticReturnsTrue() 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] [L1560] COND TRUE staticReturnsTrue() [L1562] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1562] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 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] [L1562] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1564] CALL staticReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1550] return 1; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \result=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1564] RET staticReturnsTrue() 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] [L1564] COND TRUE staticReturnsTrue() [L1567] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1567]: 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 3 procedures, 28 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 85 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 55 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 30 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=0, InterpolantAutomatonStates: 4, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 24 SizeOfPredicates, 0 NumberOfNonLiveVariables, 50 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 3/3 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 [2024-11-13 14:01:18,325 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec67618-46bb-4370-9eca-5e43bebc66ab/bin/uautomizer-verify-qhAvR1uOyd/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