./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/float-benchs/divmul_diverge.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d029125-3315-4cc4-96af-4ec5056a66d8/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d029125-3315-4cc4-96af-4ec5056a66d8/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_3d029125-3315-4cc4-96af-4ec5056a66d8/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d029125-3315-4cc4-96af-4ec5056a66d8/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/divmul_diverge.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d029125-3315-4cc4-96af-4ec5056a66d8/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d029125-3315-4cc4-96af-4ec5056a66d8/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 32bit --witnessprinter.graph.data.programhash 6ffdc119181aa2456330d740041ecbf5eb23a58830499150b547bc21d0f8f549 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 14:17:20,927 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 14:17:21,040 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d029125-3315-4cc4-96af-4ec5056a66d8/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-13 14:17:21,054 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 14:17:21,055 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 14:17:21,093 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 14:17:21,094 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 14:17:21,094 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 14:17:21,095 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 14:17:21,095 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 14:17:21,095 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 14:17:21,095 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 14:17:21,096 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 14:17:21,096 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 14:17:21,096 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 14:17:21,096 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 14:17:21,097 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 14:17:21,097 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 14:17:21,097 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 14:17:21,097 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 14:17:21,097 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 14:17:21,098 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 14:17:21,098 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 14:17:21,098 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 14:17:21,098 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 14:17:21,098 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 14:17:21,098 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 14:17:21,099 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 14:17:21,099 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 14:17:21,099 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 14:17:21,099 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 14:17:21,099 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 14:17:21,099 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 14:17:21,100 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 14:17:21,101 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:17:21,101 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 14:17:21,101 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 14:17:21,102 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 14:17:21,102 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 14:17:21,102 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 14:17:21,102 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 14:17:21,102 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 14:17:21,102 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 14:17:21,102 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 14:17:21,103 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_3d029125-3315-4cc4-96af-4ec5056a66d8/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6ffdc119181aa2456330d740041ecbf5eb23a58830499150b547bc21d0f8f549 [2024-11-13 14:17:21,507 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 14:17:21,523 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 14:17:21,526 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 14:17:21,527 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 14:17:21,528 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 14:17:21,529 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d029125-3315-4cc4-96af-4ec5056a66d8/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/float-benchs/divmul_diverge.c Unable to find full path for "g++" [2024-11-13 14:17:23,820 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 14:17:24,187 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 14:17:24,188 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d029125-3315-4cc4-96af-4ec5056a66d8/sv-benchmarks/c/float-benchs/divmul_diverge.c [2024-11-13 14:17:24,202 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d029125-3315-4cc4-96af-4ec5056a66d8/bin/uautomizer-verify-qhAvR1uOyd/data/0b25493cd/230382935acd4ce390f428ca12051258/FLAGb90c69ea6 [2024-11-13 14:17:24,221 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d029125-3315-4cc4-96af-4ec5056a66d8/bin/uautomizer-verify-qhAvR1uOyd/data/0b25493cd/230382935acd4ce390f428ca12051258 [2024-11-13 14:17:24,224 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 14:17:24,226 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 14:17:24,228 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 14:17:24,228 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 14:17:24,234 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 14:17:24,235 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:17:24" (1/1) ... [2024-11-13 14:17:24,236 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e49504a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:17:24, skipping insertion in model container [2024-11-13 14:17:24,236 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:17:24" (1/1) ... [2024-11-13 14:17:24,254 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 14:17:24,478 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:17:24,493 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 14:17:24,515 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:17:24,534 INFO L204 MainTranslator]: Completed translation [2024-11-13 14:17:24,535 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:17:24 WrapperNode [2024-11-13 14:17:24,536 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 14:17:24,537 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 14:17:24,538 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 14:17:24,539 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 14:17:24,551 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:17:24" (1/1) ... [2024-11-13 14:17:24,560 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:17:24" (1/1) ... [2024-11-13 14:17:24,582 INFO L138 Inliner]: procedures = 16, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 46 [2024-11-13 14:17:24,583 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 14:17:24,584 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 14:17:24,584 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 14:17:24,584 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 14:17:24,594 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:17:24" (1/1) ... [2024-11-13 14:17:24,595 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:17:24" (1/1) ... [2024-11-13 14:17:24,596 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:17:24" (1/1) ... [2024-11-13 14:17:24,606 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-13 14:17:24,606 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:17:24" (1/1) ... [2024-11-13 14:17:24,606 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:17:24" (1/1) ... [2024-11-13 14:17:24,610 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:17:24" (1/1) ... [2024-11-13 14:17:24,614 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:17:24" (1/1) ... [2024-11-13 14:17:24,615 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:17:24" (1/1) ... [2024-11-13 14:17:24,616 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:17:24" (1/1) ... [2024-11-13 14:17:24,618 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 14:17:24,619 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 14:17:24,619 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 14:17:24,619 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 14:17:24,620 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:17:24" (1/1) ... [2024-11-13 14:17:24,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:17:24,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d029125-3315-4cc4-96af-4ec5056a66d8/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:17:24,653 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d029125-3315-4cc4-96af-4ec5056a66d8/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 14:17:24,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d029125-3315-4cc4-96af-4ec5056a66d8/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 14:17:24,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 14:17:24,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 14:17:24,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 14:17:24,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 14:17:24,757 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 14:17:24,759 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 14:17:24,897 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-13 14:17:24,897 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 14:17:24,911 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 14:17:24,911 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 14:17:24,911 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:17:24 BoogieIcfgContainer [2024-11-13 14:17:24,912 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 14:17:24,915 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 14:17:24,915 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 14:17:24,920 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 14:17:24,920 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:17:24" (1/3) ... [2024-11-13 14:17:24,921 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d9f110 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:17:24, skipping insertion in model container [2024-11-13 14:17:24,921 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:17:24" (2/3) ... [2024-11-13 14:17:24,922 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d9f110 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:17:24, skipping insertion in model container [2024-11-13 14:17:24,922 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:17:24" (3/3) ... [2024-11-13 14:17:24,923 INFO L112 eAbstractionObserver]: Analyzing ICFG divmul_diverge.c [2024-11-13 14:17:24,942 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 14:17:24,944 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG divmul_diverge.c that has 1 procedures, 20 locations, 1 initial locations, 1 loop locations, and 2 error locations. [2024-11-13 14:17:25,027 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 14:17:25,051 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;@45f1203, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 14:17:25,051 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-13 14:17:25,057 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 17 states have (on average 1.411764705882353) internal successors, (24), 19 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:17:25,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-13 14:17:25,065 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:17:25,066 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:17:25,068 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-13 14:17:25,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:17:25,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1809983146, now seen corresponding path program 1 times [2024-11-13 14:17:25,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:17:25,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165249856] [2024-11-13 14:17:25,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:17:25,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:17:25,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:17:25,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:17:25,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:17:25,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165249856] [2024-11-13 14:17:25,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165249856] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:17:25,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:17:25,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:17:25,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742022950] [2024-11-13 14:17:25,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:17:25,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:17:25,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:17:25,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:17:25,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:17:25,427 INFO L87 Difference]: Start difference. First operand has 20 states, 17 states have (on average 1.411764705882353) internal successors, (24), 19 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:17:25,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:17:25,513 INFO L93 Difference]: Finished difference Result 45 states and 59 transitions. [2024-11-13 14:17:25,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:17:25,517 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-13 14:17:25,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:17:25,526 INFO L225 Difference]: With dead ends: 45 [2024-11-13 14:17:25,526 INFO L226 Difference]: Without dead ends: 20 [2024-11-13 14:17:25,530 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:17:25,534 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 4 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:17:25,535 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 41 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:17:25,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2024-11-13 14:17:25,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2024-11-13 14:17:25,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 19 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:17:25,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2024-11-13 14:17:25,582 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 7 [2024-11-13 14:17:25,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:17:25,583 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2024-11-13 14:17:25,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:17:25,584 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2024-11-13 14:17:25,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-13 14:17:25,584 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:17:25,584 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-13 14:17:25,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 14:17:25,585 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-13 14:17:25,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:17:25,587 INFO L85 PathProgramCache]: Analyzing trace with hash 817882522, now seen corresponding path program 1 times [2024-11-13 14:17:25,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:17:25,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126440009] [2024-11-13 14:17:25,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:17:25,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:17:25,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:17:25,787 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:17:25,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:17:25,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126440009] [2024-11-13 14:17:25,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126440009] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:17:25,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1885146907] [2024-11-13 14:17:25,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:17:25,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:17:25,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d029125-3315-4cc4-96af-4ec5056a66d8/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:17:25,792 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d029125-3315-4cc4-96af-4ec5056a66d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:17:25,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d029125-3315-4cc4-96af-4ec5056a66d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 14:17:25,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:17:25,860 INFO L255 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 14:17:25,865 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:17:25,977 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:17:25,978 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:17:25,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1885146907] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:17:25,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:17:25,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-13 14:17:25,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293720267] [2024-11-13 14:17:25,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:17:25,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:17:25,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:17:25,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:17:25,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-13 14:17:25,981 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:17:26,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:17:26,058 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2024-11-13 14:17:26,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:17:26,061 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-13 14:17:26,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:17:26,061 INFO L225 Difference]: With dead ends: 20 [2024-11-13 14:17:26,061 INFO L226 Difference]: Without dead ends: 19 [2024-11-13 14:17:26,062 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-13 14:17:26,063 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 4 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:17:26,063 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 20 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:17:26,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2024-11-13 14:17:26,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2024-11-13 14:17:26,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:17:26,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2024-11-13 14:17:26,068 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 13 [2024-11-13 14:17:26,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:17:26,069 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2024-11-13 14:17:26,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:17:26,069 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2024-11-13 14:17:26,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-13 14:17:26,070 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:17:26,070 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1] [2024-11-13 14:17:26,091 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d029125-3315-4cc4-96af-4ec5056a66d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 14:17:26,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d029125-3315-4cc4-96af-4ec5056a66d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:17:26,274 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-13 14:17:26,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:17:26,275 INFO L85 PathProgramCache]: Analyzing trace with hash -415445534, now seen corresponding path program 1 times [2024-11-13 14:17:26,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:17:26,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248009699] [2024-11-13 14:17:26,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:17:26,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:17:26,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:17:26,343 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 14:17:26,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:17:26,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248009699] [2024-11-13 14:17:26,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248009699] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:17:26,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:17:26,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:17:26,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662740643] [2024-11-13 14:17:26,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:17:26,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:17:26,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:17:26,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:17:26,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:17:26,345 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:17:26,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:17:26,364 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2024-11-13 14:17:26,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:17:26,365 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-13 14:17:26,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:17:26,365 INFO L225 Difference]: With dead ends: 19 [2024-11-13 14:17:26,365 INFO L226 Difference]: Without dead ends: 0 [2024-11-13 14:17:26,366 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:17:26,367 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 3 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:17:26,368 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 14 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:17:26,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-13 14:17:26,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-13 14:17:26,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:17:26,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-13 14:17:26,369 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2024-11-13 14:17:26,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:17:26,370 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 14:17:26,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:17:26,370 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-13 14:17:26,370 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-13 14:17:26,373 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-13 14:17:26,374 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-13 14:17:26,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 14:17:26,378 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-13 14:17:26,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-13 14:17:26,409 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 14:17:26,427 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 02:17:26 BoogieIcfgContainer [2024-11-13 14:17:26,427 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 14:17:26,428 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 14:17:26,428 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 14:17:26,429 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 14:17:26,429 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:17:24" (3/4) ... [2024-11-13 14:17:26,432 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 14:17:26,441 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-13 14:17:26,441 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-13 14:17:26,441 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-13 14:17:26,442 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-13 14:17:26,551 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d029125-3315-4cc4-96af-4ec5056a66d8/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 14:17:26,551 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d029125-3315-4cc4-96af-4ec5056a66d8/bin/uautomizer-verify-qhAvR1uOyd/witness.yml [2024-11-13 14:17:26,551 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 14:17:26,552 INFO L158 Benchmark]: Toolchain (without parser) took 2326.50ms. Allocated memory is still 117.4MB. Free memory was 95.0MB in the beginning and 80.5MB in the end (delta: 14.5MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. [2024-11-13 14:17:26,553 INFO L158 Benchmark]: CDTParser took 1.79ms. Allocated memory is still 142.6MB. Free memory is still 80.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:17:26,553 INFO L158 Benchmark]: CACSL2BoogieTranslator took 308.86ms. Allocated memory is still 117.4MB. Free memory was 95.0MB in the beginning and 84.3MB in the end (delta: 10.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 14:17:26,553 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.64ms. Allocated memory is still 117.4MB. Free memory was 84.3MB in the beginning and 82.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:17:26,554 INFO L158 Benchmark]: Boogie Preprocessor took 34.26ms. Allocated memory is still 117.4MB. Free memory was 82.9MB in the beginning and 81.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:17:26,554 INFO L158 Benchmark]: RCFGBuilder took 292.78ms. Allocated memory is still 117.4MB. Free memory was 81.9MB in the beginning and 72.0MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 14:17:26,554 INFO L158 Benchmark]: TraceAbstraction took 1513.04ms. Allocated memory is still 117.4MB. Free memory was 71.3MB in the beginning and 85.6MB in the end (delta: -14.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:17:26,555 INFO L158 Benchmark]: Witness Printer took 123.10ms. Allocated memory is still 117.4MB. Free memory was 85.6MB in the beginning and 80.5MB in the end (delta: 5.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 14:17:26,561 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.79ms. Allocated memory is still 142.6MB. Free memory is still 80.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 308.86ms. Allocated memory is still 117.4MB. Free memory was 95.0MB in the beginning and 84.3MB in the end (delta: 10.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.64ms. Allocated memory is still 117.4MB. Free memory was 84.3MB in the beginning and 82.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 34.26ms. Allocated memory is still 117.4MB. Free memory was 82.9MB in the beginning and 81.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 292.78ms. Allocated memory is still 117.4MB. Free memory was 81.9MB in the beginning and 72.0MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1513.04ms. Allocated memory is still 117.4MB. Free memory was 71.3MB in the beginning and 85.6MB in the end (delta: -14.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 123.10ms. Allocated memory is still 117.4MB. Free memory was 85.6MB in the beginning and 80.5MB in the end (delta: 5.1MB). 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 - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 75 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 45 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 44 IncrementalHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 30 mSDtfsCounter, 44 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 109 SizeOfPredicates, 0 NumberOfNonLiveVariables, 44 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 11/16 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: (0 < (2147483649 + i)) RESULT: Ultimate proved your program to be correct! [2024-11-13 14:17:26,602 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d029125-3315-4cc4-96af-4ec5056a66d8/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: TRUE