./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loops/sum04-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d60a7309-52ae-4798-bbf0-c2fd988d4a14/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d60a7309-52ae-4798-bbf0-c2fd988d4a14/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_d60a7309-52ae-4798-bbf0-c2fd988d4a14/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d60a7309-52ae-4798-bbf0-c2fd988d4a14/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/sum04-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d60a7309-52ae-4798-bbf0-c2fd988d4a14/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_d60a7309-52ae-4798-bbf0-c2fd988d4a14/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 363837b614bad810335bbe0c369ca77c24cc87938da6245b414371c201391312 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:12:38,890 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:12:38,971 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d60a7309-52ae-4798-bbf0-c2fd988d4a14/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-13 13:12:38,980 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:12:38,983 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:12:39,021 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:12:39,022 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:12:39,022 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:12:39,022 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 13:12:39,022 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 13:12:39,023 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 13:12:39,023 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 13:12:39,024 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:12:39,025 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:12:39,026 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:12:39,026 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:12:39,027 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 13:12:39,027 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 13:12:39,027 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 13:12:39,028 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 13:12:39,028 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:12:39,028 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 13:12:39,028 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 13:12:39,028 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 13:12:39,028 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:12:39,028 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 13:12:39,029 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 13:12:39,029 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 13:12:39,029 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 13:12:39,029 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:12:39,029 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:12:39,029 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:12:39,029 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 13:12:39,030 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 13:12:39,030 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:12:39,031 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:12:39,031 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 13:12:39,031 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 13:12:39,031 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 13:12:39,031 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 13:12:39,031 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 13:12:39,031 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 13:12:39,032 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 13:12:39,032 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 13:12:39,032 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_d60a7309-52ae-4798-bbf0-c2fd988d4a14/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 -> 363837b614bad810335bbe0c369ca77c24cc87938da6245b414371c201391312 [2024-11-13 13:12:39,360 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:12:39,374 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:12:39,377 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:12:39,379 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:12:39,379 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:12:39,382 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d60a7309-52ae-4798-bbf0-c2fd988d4a14/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/loops/sum04-1.i Unable to find full path for "g++" [2024-11-13 13:12:41,376 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:12:41,670 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:12:41,672 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d60a7309-52ae-4798-bbf0-c2fd988d4a14/sv-benchmarks/c/loops/sum04-1.i [2024-11-13 13:12:41,682 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d60a7309-52ae-4798-bbf0-c2fd988d4a14/bin/uautomizer-verify-qhAvR1uOyd/data/dc8eb23d4/e21cc8f88b4d4c52a0856f19cb740b7e/FLAG23e2eeca3 [2024-11-13 13:12:41,701 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d60a7309-52ae-4798-bbf0-c2fd988d4a14/bin/uautomizer-verify-qhAvR1uOyd/data/dc8eb23d4/e21cc8f88b4d4c52a0856f19cb740b7e [2024-11-13 13:12:41,703 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:12:41,706 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:12:41,708 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:12:41,708 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:12:41,713 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:12:41,714 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:12:41" (1/1) ... [2024-11-13 13:12:41,717 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38cf7ac8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:41, skipping insertion in model container [2024-11-13 13:12:41,717 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:12:41" (1/1) ... [2024-11-13 13:12:41,735 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:12:41,921 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:12:41,930 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:12:41,943 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:12:41,959 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:12:41,959 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:41 WrapperNode [2024-11-13 13:12:41,960 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:12:41,963 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:12:41,963 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:12:41,963 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:12:41,972 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:41" (1/1) ... [2024-11-13 13:12:41,980 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:41" (1/1) ... [2024-11-13 13:12:42,000 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 32 [2024-11-13 13:12:42,001 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:12:42,002 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:12:42,003 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:12:42,003 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:12:42,012 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:41" (1/1) ... [2024-11-13 13:12:42,013 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:41" (1/1) ... [2024-11-13 13:12:42,014 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:41" (1/1) ... [2024-11-13 13:12:42,030 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 13:12:42,030 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:41" (1/1) ... [2024-11-13 13:12:42,030 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:41" (1/1) ... [2024-11-13 13:12:42,033 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:41" (1/1) ... [2024-11-13 13:12:42,042 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:41" (1/1) ... [2024-11-13 13:12:42,043 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:41" (1/1) ... [2024-11-13 13:12:42,046 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:41" (1/1) ... [2024-11-13 13:12:42,048 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:12:42,049 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:12:42,050 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:12:42,050 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:12:42,052 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:41" (1/1) ... [2024-11-13 13:12:42,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:12:42,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d60a7309-52ae-4798-bbf0-c2fd988d4a14/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:12:42,097 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d60a7309-52ae-4798-bbf0-c2fd988d4a14/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 13:12:42,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d60a7309-52ae-4798-bbf0-c2fd988d4a14/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 13:12:42,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 13:12:42,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 13:12:42,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:12:42,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:12:42,204 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:12:42,207 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:12:42,342 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-13 13:12:42,342 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:12:42,352 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:12:42,352 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 13:12:42,353 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:12:42 BoogieIcfgContainer [2024-11-13 13:12:42,353 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:12:42,356 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 13:12:42,356 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 13:12:42,361 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 13:12:42,362 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:12:41" (1/3) ... [2024-11-13 13:12:42,362 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@484ea2fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:12:42, skipping insertion in model container [2024-11-13 13:12:42,363 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:41" (2/3) ... [2024-11-13 13:12:42,363 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@484ea2fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:12:42, skipping insertion in model container [2024-11-13 13:12:42,363 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:12:42" (3/3) ... [2024-11-13 13:12:42,365 INFO L112 eAbstractionObserver]: Analyzing ICFG sum04-1.i [2024-11-13 13:12:42,384 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 13:12:42,387 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG sum04-1.i that has 1 procedures, 22 locations, 1 initial locations, 1 loop locations, and 4 error locations. [2024-11-13 13:12:42,445 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 13:12:42,457 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;@7211c9a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 13:12:42,457 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-13 13:12:42,461 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 21 states have internal predecessors, (26), 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 13:12:42,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-13 13:12:42,467 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:12:42,468 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-13 13:12:42,468 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-13 13:12:42,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:12:42,473 INFO L85 PathProgramCache]: Analyzing trace with hash 28698760, now seen corresponding path program 1 times [2024-11-13 13:12:42,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:12:42,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36827674] [2024-11-13 13:12:42,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:12:42,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:12:42,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:12:42,691 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 13:12:42,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:12:42,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36827674] [2024-11-13 13:12:42,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36827674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:12:42,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:12:42,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:12:42,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505092344] [2024-11-13 13:12:42,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:12:42,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:12:42,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:12:42,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:12:42,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:12:42,717 INFO L87 Difference]: Start difference. First operand has 22 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 21 states have internal predecessors, (26), 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 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:12:42,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:12:42,757 INFO L93 Difference]: Finished difference Result 42 states and 50 transitions. [2024-11-13 13:12:42,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:12:42,761 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-13 13:12:42,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:12:42,767 INFO L225 Difference]: With dead ends: 42 [2024-11-13 13:12:42,767 INFO L226 Difference]: Without dead ends: 22 [2024-11-13 13:12:42,770 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:12:42,773 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 8 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:12:42,774 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 34 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:12:42,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2024-11-13 13:12:42,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 20. [2024-11-13 13:12:42,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 16 states have (on average 1.5) 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 13:12:42,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions. [2024-11-13 13:12:42,805 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 24 transitions. Word has length 5 [2024-11-13 13:12:42,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:12:42,806 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 24 transitions. [2024-11-13 13:12:42,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:12:42,806 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2024-11-13 13:12:42,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-13 13:12:42,807 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:12:42,807 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-13 13:12:42,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 13:12:42,807 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-13 13:12:42,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:12:42,808 INFO L85 PathProgramCache]: Analyzing trace with hash 889667565, now seen corresponding path program 1 times [2024-11-13 13:12:42,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:12:42,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422138971] [2024-11-13 13:12:42,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:12:42,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:12:42,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:12:42,875 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 13:12:42,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:12:42,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422138971] [2024-11-13 13:12:42,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422138971] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:12:42,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:12:42,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:12:42,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195638862] [2024-11-13 13:12:42,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:12:42,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:12:42,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:12:42,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:12:42,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:12:42,878 INFO L87 Difference]: Start difference. First operand 20 states and 24 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:12:42,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:12:42,907 INFO L93 Difference]: Finished difference Result 36 states and 42 transitions. [2024-11-13 13:12:42,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:12:42,908 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-13 13:12:42,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:12:42,914 INFO L225 Difference]: With dead ends: 36 [2024-11-13 13:12:42,914 INFO L226 Difference]: Without dead ends: 18 [2024-11-13 13:12:42,915 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:12:42,916 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 3 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:12:42,916 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 19 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:12:42,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2024-11-13 13:12:42,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2024-11-13 13:12:42,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 16 states have internal predecessors, (18), 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 13:12:42,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2024-11-13 13:12:42,922 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 6 [2024-11-13 13:12:42,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:12:42,922 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2024-11-13 13:12:42,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 13:12:42,923 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2024-11-13 13:12:42,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 13:12:42,923 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:12:42,923 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:12:42,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 13:12:42,924 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-13 13:12:42,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:12:42,924 INFO L85 PathProgramCache]: Analyzing trace with hash 266314057, now seen corresponding path program 1 times [2024-11-13 13:12:42,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:12:42,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085305198] [2024-11-13 13:12:42,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:12:42,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:12:42,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:12:43,036 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 13:12:43,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:12:43,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085305198] [2024-11-13 13:12:43,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085305198] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:12:43,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:12:43,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:12:43,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865180657] [2024-11-13 13:12:43,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:12:43,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:12:43,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:12:43,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:12:43,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:12:43,038 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 13:12:43,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:12:43,081 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2024-11-13 13:12:43,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:12:43,081 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 8 [2024-11-13 13:12:43,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:12:43,082 INFO L225 Difference]: With dead ends: 22 [2024-11-13 13:12:43,082 INFO L226 Difference]: Without dead ends: 20 [2024-11-13 13:12:43,082 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 13:12:43,083 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 1 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:12:43,084 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 22 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:12:43,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2024-11-13 13:12:43,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2024-11-13 13:12:43,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 16 states have (on average 1.3125) internal successors, (21), 19 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 13:12:43,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2024-11-13 13:12:43,088 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 8 [2024-11-13 13:12:43,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:12:43,088 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2024-11-13 13:12:43,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 13:12:43,088 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2024-11-13 13:12:43,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-13 13:12:43,089 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:12:43,089 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:12:43,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 13:12:43,089 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-13 13:12:43,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:12:43,090 INFO L85 PathProgramCache]: Analyzing trace with hash -381325124, now seen corresponding path program 1 times [2024-11-13 13:12:43,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:12:43,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002439826] [2024-11-13 13:12:43,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:12:43,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:12:43,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:12:43,193 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:12:43,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:12:43,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002439826] [2024-11-13 13:12:43,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002439826] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:12:43,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1794929056] [2024-11-13 13:12:43,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:12:43,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:12:43,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d60a7309-52ae-4798-bbf0-c2fd988d4a14/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:12:43,196 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d60a7309-52ae-4798-bbf0-c2fd988d4a14/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:12:43,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d60a7309-52ae-4798-bbf0-c2fd988d4a14/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 13:12:43,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:12:43,258 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 13:12:43,271 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:12:43,350 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 13:12:43,350 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:12:43,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1794929056] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:12:43,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:12:43,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-11-13 13:12:43,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009722936] [2024-11-13 13:12:43,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:12:43,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:12:43,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:12:43,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:12:43,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:12:43,352 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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 13:12:43,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:12:43,388 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2024-11-13 13:12:43,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:12:43,389 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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 12 [2024-11-13 13:12:43,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:12:43,390 INFO L225 Difference]: With dead ends: 20 [2024-11-13 13:12:43,390 INFO L226 Difference]: Without dead ends: 19 [2024-11-13 13:12:43,391 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:12:43,392 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 4 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:12:43,396 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 16 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:12:43,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2024-11-13 13:12:43,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2024-11-13 13:12:43,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 16 states have (on average 1.25) internal successors, (20), 18 states have internal predecessors, (20), 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 13:12:43,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2024-11-13 13:12:43,404 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 12 [2024-11-13 13:12:43,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:12:43,404 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2024-11-13 13:12:43,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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 13:12:43,404 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2024-11-13 13:12:43,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-13 13:12:43,405 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:12:43,405 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:12:43,428 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d60a7309-52ae-4798-bbf0-c2fd988d4a14/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 13:12:43,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d60a7309-52ae-4798-bbf0-c2fd988d4a14/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:12:43,606 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-13 13:12:43,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:12:43,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1063829049, now seen corresponding path program 1 times [2024-11-13 13:12:43,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:12:43,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307965588] [2024-11-13 13:12:43,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:12:43,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:12:43,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:12:43,729 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:12:43,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:12:43,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307965588] [2024-11-13 13:12:43,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307965588] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:12:43,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2031181105] [2024-11-13 13:12:43,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:12:43,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:12:43,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d60a7309-52ae-4798-bbf0-c2fd988d4a14/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:12:43,733 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d60a7309-52ae-4798-bbf0-c2fd988d4a14/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:12:43,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d60a7309-52ae-4798-bbf0-c2fd988d4a14/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 13:12:43,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:12:43,791 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 13:12:43,792 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:12:43,865 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:12:43,865 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:12:43,934 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:12:43,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2031181105] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:12:43,935 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:12:43,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-11-13 13:12:43,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368086912] [2024-11-13 13:12:43,935 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:12:43,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 13:12:43,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:12:43,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 13:12:43,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-13 13:12:43,939 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 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 13:12:44,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:12:44,029 INFO L93 Difference]: Finished difference Result 40 states and 46 transitions. [2024-11-13 13:12:44,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 13:12:44,030 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 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 13:12:44,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:12:44,030 INFO L225 Difference]: With dead ends: 40 [2024-11-13 13:12:44,030 INFO L226 Difference]: Without dead ends: 30 [2024-11-13 13:12:44,031 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-13 13:12:44,032 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 6 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:12:44,032 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 37 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:12:44,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-11-13 13:12:44,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2024-11-13 13:12:44,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 25 states have (on average 1.24) internal successors, (31), 27 states have internal predecessors, (31), 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 13:12:44,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2024-11-13 13:12:44,037 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 13 [2024-11-13 13:12:44,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:12:44,037 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2024-11-13 13:12:44,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 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 13:12:44,037 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2024-11-13 13:12:44,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-13 13:12:44,038 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:12:44,038 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:12:44,060 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d60a7309-52ae-4798-bbf0-c2fd988d4a14/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 13:12:44,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d60a7309-52ae-4798-bbf0-c2fd988d4a14/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:12:44,239 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-13 13:12:44,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:12:44,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1063823091, now seen corresponding path program 1 times [2024-11-13 13:12:44,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:12:44,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491274911] [2024-11-13 13:12:44,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:12:44,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:12:44,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:12:44,298 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:12:44,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:12:44,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491274911] [2024-11-13 13:12:44,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491274911] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:12:44,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [365810156] [2024-11-13 13:12:44,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:12:44,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:12:44,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d60a7309-52ae-4798-bbf0-c2fd988d4a14/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:12:44,302 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d60a7309-52ae-4798-bbf0-c2fd988d4a14/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:12:44,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d60a7309-52ae-4798-bbf0-c2fd988d4a14/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 13:12:44,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:12:44,346 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 13:12:44,347 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:12:44,383 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:12:44,383 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:12:44,429 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:12:44,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [365810156] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:12:44,430 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:12:44,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-13 13:12:44,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545136638] [2024-11-13 13:12:44,430 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:12:44,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:12:44,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:12:44,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:12:44,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:12:44,431 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand has 7 states, 6 states have (on average 5.0) internal successors, (30), 7 states have internal predecessors, (30), 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 13:12:44,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:12:44,468 INFO L93 Difference]: Finished difference Result 41 states and 45 transitions. [2024-11-13 13:12:44,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 13:12:44,468 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 7 states have internal predecessors, (30), 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 13:12:44,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:12:44,469 INFO L225 Difference]: With dead ends: 41 [2024-11-13 13:12:44,471 INFO L226 Difference]: Without dead ends: 40 [2024-11-13 13:12:44,471 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:12:44,472 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:12:44,473 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 48 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:12:44,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-11-13 13:12:44,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 37. [2024-11-13 13:12:44,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 34 states have (on average 1.2352941176470589) internal successors, (42), 36 states have internal predecessors, (42), 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 13:12:44,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 42 transitions. [2024-11-13 13:12:44,479 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 42 transitions. Word has length 13 [2024-11-13 13:12:44,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:12:44,480 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 42 transitions. [2024-11-13 13:12:44,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 7 states have internal predecessors, (30), 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 13:12:44,480 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 42 transitions. [2024-11-13 13:12:44,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-13 13:12:44,480 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:12:44,481 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-13 13:12:44,494 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d60a7309-52ae-4798-bbf0-c2fd988d4a14/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 13:12:44,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d60a7309-52ae-4798-bbf0-c2fd988d4a14/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-13 13:12:44,681 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-13 13:12:44,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:12:44,682 INFO L85 PathProgramCache]: Analyzing trace with hash 131775637, now seen corresponding path program 1 times [2024-11-13 13:12:44,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:12:44,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013588254] [2024-11-13 13:12:44,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:12:44,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:12:44,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:12:44,780 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:12:44,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:12:44,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013588254] [2024-11-13 13:12:44,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013588254] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:12:44,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1291325800] [2024-11-13 13:12:44,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:12:44,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:12:44,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d60a7309-52ae-4798-bbf0-c2fd988d4a14/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:12:44,782 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d60a7309-52ae-4798-bbf0-c2fd988d4a14/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:12:44,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d60a7309-52ae-4798-bbf0-c2fd988d4a14/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 13:12:44,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:12:44,831 INFO L255 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 13:12:44,832 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:12:44,895 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:12:44,895 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:12:44,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1291325800] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:12:44,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:12:44,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-13 13:12:44,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183940435] [2024-11-13 13:12:44,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:12:44,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 13:12:44,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:12:44,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 13:12:44,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-13 13:12:44,896 INFO L87 Difference]: Start difference. First operand 37 states and 42 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 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 13:12:44,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:12:44,941 INFO L93 Difference]: Finished difference Result 37 states and 42 transitions. [2024-11-13 13:12:44,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 13:12:44,942 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 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 15 [2024-11-13 13:12:44,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:12:44,942 INFO L225 Difference]: With dead ends: 37 [2024-11-13 13:12:44,942 INFO L226 Difference]: Without dead ends: 36 [2024-11-13 13:12:44,943 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-13 13:12:44,943 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 5 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:12:44,944 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 16 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:12:44,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-11-13 13:12:44,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2024-11-13 13:12:44,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 34 states have (on average 1.1470588235294117) internal successors, (39), 35 states have internal predecessors, (39), 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 13:12:44,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions. [2024-11-13 13:12:44,954 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 39 transitions. Word has length 15 [2024-11-13 13:12:44,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:12:44,954 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 39 transitions. [2024-11-13 13:12:44,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 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 13:12:44,954 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 39 transitions. [2024-11-13 13:12:44,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-13 13:12:44,955 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:12:44,955 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 1, 1, 1] [2024-11-13 13:12:44,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d60a7309-52ae-4798-bbf0-c2fd988d4a14/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-13 13:12:45,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d60a7309-52ae-4798-bbf0-c2fd988d4a14/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-13 13:12:45,156 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-13 13:12:45,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:12:45,156 INFO L85 PathProgramCache]: Analyzing trace with hash -58858098, now seen corresponding path program 1 times [2024-11-13 13:12:45,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:12:45,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083502953] [2024-11-13 13:12:45,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:12:45,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:12:45,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:12:45,208 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-13 13:12:45,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:12:45,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083502953] [2024-11-13 13:12:45,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083502953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:12:45,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:12:45,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:12:45,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785189877] [2024-11-13 13:12:45,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:12:45,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:12:45,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:12:45,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:12:45,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:12:45,211 INFO L87 Difference]: Start difference. First operand 36 states and 39 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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 13:12:45,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:12:45,235 INFO L93 Difference]: Finished difference Result 43 states and 47 transitions. [2024-11-13 13:12:45,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:12:45,235 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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 23 [2024-11-13 13:12:45,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:12:45,236 INFO L225 Difference]: With dead ends: 43 [2024-11-13 13:12:45,236 INFO L226 Difference]: Without dead ends: 42 [2024-11-13 13:12:45,236 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 13:12:45,237 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:12:45,237 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 14 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:12:45,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-11-13 13:12:45,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2024-11-13 13:12:45,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 40 states have (on average 1.125) internal successors, (45), 41 states have internal predecessors, (45), 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 13:12:45,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 45 transitions. [2024-11-13 13:12:45,242 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 45 transitions. Word has length 23 [2024-11-13 13:12:45,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:12:45,242 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 45 transitions. [2024-11-13 13:12:45,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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 13:12:45,243 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 45 transitions. [2024-11-13 13:12:45,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-13 13:12:45,243 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:12:45,243 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1] [2024-11-13 13:12:45,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 13:12:45,244 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-13 13:12:45,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:12:45,244 INFO L85 PathProgramCache]: Analyzing trace with hash 67378078, now seen corresponding path program 1 times [2024-11-13 13:12:45,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:12:45,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469644469] [2024-11-13 13:12:45,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:12:45,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:12:45,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:12:45,322 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 13:12:45,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:12:45,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469644469] [2024-11-13 13:12:45,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469644469] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:12:45,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:12:45,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:12:45,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681032828] [2024-11-13 13:12:45,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:12:45,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:12:45,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:12:45,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:12:45,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:12:45,325 INFO L87 Difference]: Start difference. First operand 42 states and 45 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 13:12:45,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:12:45,344 INFO L93 Difference]: Finished difference Result 42 states and 45 transitions. [2024-11-13 13:12:45,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:12:45,345 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 28 [2024-11-13 13:12:45,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:12:45,345 INFO L225 Difference]: With dead ends: 42 [2024-11-13 13:12:45,345 INFO L226 Difference]: Without dead ends: 41 [2024-11-13 13:12:45,346 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 13:12:45,346 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:12:45,347 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 10 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:12:45,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-11-13 13:12:45,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 35. [2024-11-13 13:12:45,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.088235294117647) internal successors, (37), 34 states have internal predecessors, (37), 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 13:12:45,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2024-11-13 13:12:45,352 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 28 [2024-11-13 13:12:45,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:12:45,353 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2024-11-13 13:12:45,353 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 13:12:45,353 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2024-11-13 13:12:45,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-13 13:12:45,354 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:12:45,354 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 1, 1, 1] [2024-11-13 13:12:45,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 13:12:45,356 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-13 13:12:45,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:12:45,356 INFO L85 PathProgramCache]: Analyzing trace with hash -961286745, now seen corresponding path program 2 times [2024-11-13 13:12:45,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:12:45,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938893424] [2024-11-13 13:12:45,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:12:45,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:12:45,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:12:45,491 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:12:45,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:12:45,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938893424] [2024-11-13 13:12:45,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938893424] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:12:45,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [433744209] [2024-11-13 13:12:45,491 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 13:12:45,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:12:45,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d60a7309-52ae-4798-bbf0-c2fd988d4a14/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:12:45,495 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d60a7309-52ae-4798-bbf0-c2fd988d4a14/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:12:45,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d60a7309-52ae-4798-bbf0-c2fd988d4a14/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 13:12:45,544 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 13:12:45,544 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 13:12:45,547 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 13:12:45,549 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:12:45,703 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 13:12:45,703 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:12:45,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [433744209] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:12:45,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:12:45,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [6] total 14 [2024-11-13 13:12:45,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711819718] [2024-11-13 13:12:45,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:12:45,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 13:12:45,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:12:45,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 13:12:45,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-11-13 13:12:45,705 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 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 13:12:45,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:12:45,773 INFO L93 Difference]: Finished difference Result 36 states and 38 transitions. [2024-11-13 13:12:45,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 13:12:45,774 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 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 34 [2024-11-13 13:12:45,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:12:45,774 INFO L225 Difference]: With dead ends: 36 [2024-11-13 13:12:45,774 INFO L226 Difference]: Without dead ends: 0 [2024-11-13 13:12:45,774 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-11-13 13:12:45,775 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 2 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:12:45,775 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 32 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:12:45,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-13 13:12:45,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-13 13:12:45,776 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 13:12:45,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-13 13:12:45,776 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2024-11-13 13:12:45,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:12:45,776 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 13:12:45,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 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 13:12:45,777 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-13 13:12:45,777 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-13 13:12:45,779 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2024-11-13 13:12:45,780 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2024-11-13 13:12:45,780 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2024-11-13 13:12:45,780 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2024-11-13 13:12:45,800 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d60a7309-52ae-4798-bbf0-c2fd988d4a14/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-13 13:12:45,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d60a7309-52ae-4798-bbf0-c2fd988d4a14/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-13 13:12:45,987 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:12:45,989 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-13 13:12:46,041 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 13:12:46,060 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 01:12:46 BoogieIcfgContainer [2024-11-13 13:12:46,060 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 13:12:46,061 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 13:12:46,061 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 13:12:46,061 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 13:12:46,062 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:12:42" (3/4) ... [2024-11-13 13:12:46,065 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 13:12:46,074 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-11-13 13:12:46,074 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-13 13:12:46,074 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-13 13:12:46,074 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-13 13:12:46,153 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d60a7309-52ae-4798-bbf0-c2fd988d4a14/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 13:12:46,154 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d60a7309-52ae-4798-bbf0-c2fd988d4a14/bin/uautomizer-verify-qhAvR1uOyd/witness.yml [2024-11-13 13:12:46,154 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 13:12:46,155 INFO L158 Benchmark]: Toolchain (without parser) took 4449.37ms. Allocated memory is still 117.4MB. Free memory was 94.2MB in the beginning and 61.9MB in the end (delta: 32.3MB). Peak memory consumption was 29.2MB. Max. memory is 16.1GB. [2024-11-13 13:12:46,155 INFO L158 Benchmark]: CDTParser took 0.94ms. Allocated memory is still 142.6MB. Free memory is still 80.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:12:46,155 INFO L158 Benchmark]: CACSL2BoogieTranslator took 253.47ms. Allocated memory is still 117.4MB. Free memory was 94.2MB in the beginning and 83.7MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 13:12:46,156 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.14ms. Allocated memory is still 117.4MB. Free memory was 83.7MB in the beginning and 82.8MB in the end (delta: 938.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:12:46,156 INFO L158 Benchmark]: Boogie Preprocessor took 46.03ms. Allocated memory is still 117.4MB. Free memory was 82.8MB in the beginning and 81.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:12:46,156 INFO L158 Benchmark]: RCFGBuilder took 304.22ms. Allocated memory is still 117.4MB. Free memory was 81.6MB in the beginning and 71.5MB in the end (delta: 10.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 13:12:46,156 INFO L158 Benchmark]: TraceAbstraction took 3704.44ms. Allocated memory is still 117.4MB. Free memory was 70.9MB in the beginning and 65.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. [2024-11-13 13:12:46,156 INFO L158 Benchmark]: Witness Printer took 93.00ms. Allocated memory is still 117.4MB. Free memory was 65.7MB in the beginning and 61.9MB in the end (delta: 3.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:12:46,158 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.94ms. Allocated memory is still 142.6MB. Free memory is still 80.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 253.47ms. Allocated memory is still 117.4MB. Free memory was 94.2MB in the beginning and 83.7MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.14ms. Allocated memory is still 117.4MB. Free memory was 83.7MB in the beginning and 82.8MB in the end (delta: 938.0kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 46.03ms. Allocated memory is still 117.4MB. Free memory was 82.8MB in the beginning and 81.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 304.22ms. Allocated memory is still 117.4MB. Free memory was 81.6MB in the beginning and 71.5MB in the end (delta: 10.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3704.44ms. Allocated memory is still 117.4MB. Free memory was 70.9MB in the beginning and 65.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. * Witness Printer took 93.00ms. Allocated memory is still 117.4MB. Free memory was 65.7MB in the beginning and 61.9MB in the end (delta: 3.8MB). 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 - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: 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, 22 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 3.6s, OverallIterations: 10, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 42 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 42 mSDsluCounter, 248 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 152 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 247 IncrementalHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 96 mSDtfsCounter, 247 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 143 GetRequests, 101 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=8, InterpolantAutomatonStates: 50, 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, 10 MinimizatonAttempts, 14 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 244 NumberOfCodeBlocks, 244 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 253 ConstructedInterpolants, 0 QuantifiedInterpolants, 615 SizeOfPredicates, 0 NumberOfNonLiveVariables, 226 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 17 InterpolantComputations, 8 PerfectInterpolantSequences, 130/215 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 4 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: ((((((2 <= sn) && (sn <= 2147483645)) && (4 <= i)) || ((2 == i) && (2 == sn))) || ((i == 1) && (sn == 0))) || (((sn <= 2147483643) && (3 == i)) && (2 <= sn))) RESULT: Ultimate proved your program to be correct! [2024-11-13 13:12:46,179 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d60a7309-52ae-4798-bbf0-c2fd988d4a14/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