./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-nla/cohencu2-both-nt.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/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_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-nla/cohencu2-both-nt.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/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_8aeddb53-a2e2-4127-ba46-88e23c093a31/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 e2817f3084a8852f4b330f9c6d3e372001677288c6bd96843f93de200f3970ca --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 14:44:45,943 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 14:44:46,015 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-13 14:44:46,021 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 14:44:46,022 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 14:44:46,048 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 14:44:46,048 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 14:44:46,049 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 14:44:46,049 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 14:44:46,049 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 14:44:46,050 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 14:44:46,050 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 14:44:46,050 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 14:44:46,050 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 14:44:46,051 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 14:44:46,051 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 14:44:46,051 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 14:44:46,051 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 14:44:46,051 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 14:44:46,052 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 14:44:46,052 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 14:44:46,052 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 14:44:46,052 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 14:44:46,052 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 14:44:46,053 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 14:44:46,053 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 14:44:46,053 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 14:44:46,053 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 14:44:46,053 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 14:44:46,053 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 14:44:46,053 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 14:44:46,054 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 14:44:46,054 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 14:44:46,054 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 14:44:46,054 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:44:46,054 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 14:44:46,054 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 14:44:46,054 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 14:44:46,054 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 14:44:46,055 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 14:44:46,055 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 14:44:46,055 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 14:44:46,055 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 14:44:46,055 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 14:44:46,055 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_8aeddb53-a2e2-4127-ba46-88e23c093a31/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 -> e2817f3084a8852f4b330f9c6d3e372001677288c6bd96843f93de200f3970ca [2024-11-13 14:44:46,401 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 14:44:46,410 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 14:44:46,412 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 14:44:46,413 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 14:44:46,413 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 14:44:46,414 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/termination-nla/cohencu2-both-nt.c Unable to find full path for "g++" [2024-11-13 14:44:48,905 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 14:44:49,223 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 14:44:49,224 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/sv-benchmarks/c/termination-nla/cohencu2-both-nt.c [2024-11-13 14:44:49,237 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/data/ead55e160/15dfbaabef27498a84cd7591525b0e3e/FLAG7761f964c [2024-11-13 14:44:49,266 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/data/ead55e160/15dfbaabef27498a84cd7591525b0e3e [2024-11-13 14:44:49,269 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 14:44:49,272 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 14:44:49,274 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 14:44:49,275 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 14:44:49,280 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 14:44:49,281 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:44:49" (1/1) ... [2024-11-13 14:44:49,282 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1377d1be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:44:49, skipping insertion in model container [2024-11-13 14:44:49,282 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:44:49" (1/1) ... [2024-11-13 14:44:49,300 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 14:44:49,490 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:44:49,500 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 14:44:49,521 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:44:49,543 INFO L204 MainTranslator]: Completed translation [2024-11-13 14:44:49,544 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:44:49 WrapperNode [2024-11-13 14:44:49,544 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 14:44:49,546 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 14:44:49,546 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 14:44:49,547 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 14:44:49,556 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:44:49" (1/1) ... [2024-11-13 14:44:49,561 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:44:49" (1/1) ... [2024-11-13 14:44:49,582 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 42 [2024-11-13 14:44:49,585 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 14:44:49,586 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 14:44:49,587 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 14:44:49,587 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 14:44:49,600 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:44:49" (1/1) ... [2024-11-13 14:44:49,601 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:44:49" (1/1) ... [2024-11-13 14:44:49,602 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:44:49" (1/1) ... [2024-11-13 14:44:49,615 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-13 14:44:49,615 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:44:49" (1/1) ... [2024-11-13 14:44:49,615 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:44:49" (1/1) ... [2024-11-13 14:44:49,619 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:44:49" (1/1) ... [2024-11-13 14:44:49,624 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:44:49" (1/1) ... [2024-11-13 14:44:49,626 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:44:49" (1/1) ... [2024-11-13 14:44:49,627 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:44:49" (1/1) ... [2024-11-13 14:44:49,629 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 14:44:49,631 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 14:44:49,632 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 14:44:49,634 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 14:44:49,635 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:44:49" (1/1) ... [2024-11-13 14:44:49,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:44:49,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:44:49,694 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 14:44:49,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 14:44:49,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 14:44:49,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 14:44:49,798 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 14:44:49,800 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 14:44:50,115 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-13 14:44:50,116 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 14:44:50,129 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 14:44:50,130 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 14:44:50,131 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:44:50 BoogieIcfgContainer [2024-11-13 14:44:50,131 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 14:44:50,135 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 14:44:50,135 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 14:44:50,141 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 14:44:50,141 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:44:49" (1/3) ... [2024-11-13 14:44:50,142 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e7b1fad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:44:50, skipping insertion in model container [2024-11-13 14:44:50,142 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:44:49" (2/3) ... [2024-11-13 14:44:50,143 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e7b1fad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:44:50, skipping insertion in model container [2024-11-13 14:44:50,143 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:44:50" (3/3) ... [2024-11-13 14:44:50,144 INFO L112 eAbstractionObserver]: Analyzing ICFG cohencu2-both-nt.c [2024-11-13 14:44:50,165 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 14:44:50,169 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG cohencu2-both-nt.c that has 1 procedures, 43 locations, 1 initial locations, 1 loop locations, and 18 error locations. [2024-11-13 14:44:50,247 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 14:44:50,264 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;@3eff4177, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 14:44:50,264 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-13 14:44:50,271 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 24 states have (on average 1.8333333333333333) internal successors, (44), 42 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:44:50,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-13 14:44:50,279 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:44:50,280 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-13 14:44:50,281 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 14:44:50,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:44:50,288 INFO L85 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 1 times [2024-11-13 14:44:50,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:44:50,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135317835] [2024-11-13 14:44:50,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:44:50,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:44:50,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:44:50,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:44:50,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:44:50,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135317835] [2024-11-13 14:44:50,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135317835] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:44:50,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:44:50,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:44:50,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242393516] [2024-11-13 14:44:50,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:44:50,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:44:50,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:44:50,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:44:50,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:44:50,499 INFO L87 Difference]: Start difference. First operand has 43 states, 24 states have (on average 1.8333333333333333) internal successors, (44), 42 states have internal predecessors, (44), 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 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:44:50,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:44:50,604 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2024-11-13 14:44:50,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:44:50,607 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-13 14:44:50,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:44:50,616 INFO L225 Difference]: With dead ends: 47 [2024-11-13 14:44:50,616 INFO L226 Difference]: Without dead ends: 33 [2024-11-13 14:44:50,620 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 14:44:50,624 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 24 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:44:50,625 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 20 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:44:50,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2024-11-13 14:44:50,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2024-11-13 14:44:50,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 32 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 14:44:50,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 33 transitions. [2024-11-13 14:44:50,667 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 33 transitions. Word has length 3 [2024-11-13 14:44:50,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:44:50,668 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 33 transitions. [2024-11-13 14:44:50,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:44:50,668 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 33 transitions. [2024-11-13 14:44:50,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-13 14:44:50,669 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:44:50,669 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-13 14:44:50,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 14:44:50,670 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 14:44:50,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:44:50,671 INFO L85 PathProgramCache]: Analyzing trace with hash 925668, now seen corresponding path program 1 times [2024-11-13 14:44:50,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:44:50,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54157620] [2024-11-13 14:44:50,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:44:50,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:44:50,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:44:50,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:44:50,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:44:50,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54157620] [2024-11-13 14:44:50,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54157620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:44:50,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:44:50,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:44:50,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560198501] [2024-11-13 14:44:50,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:44:50,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:44:50,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:44:50,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:44:50,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:44:50,712 INFO L87 Difference]: Start difference. First operand 33 states and 33 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:44:50,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:44:50,813 INFO L93 Difference]: Finished difference Result 49 states and 52 transitions. [2024-11-13 14:44:50,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:44:50,814 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-13 14:44:50,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:44:50,815 INFO L225 Difference]: With dead ends: 49 [2024-11-13 14:44:50,815 INFO L226 Difference]: Without dead ends: 46 [2024-11-13 14:44:50,815 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 14:44:50,816 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 11 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:44:50,817 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 30 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:44:50,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-11-13 14:44:50,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-11-13 14:44:50,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 34 states have (on average 1.4411764705882353) internal successors, (49), 45 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:44:50,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 49 transitions. [2024-11-13 14:44:50,824 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 49 transitions. Word has length 4 [2024-11-13 14:44:50,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:44:50,825 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 49 transitions. [2024-11-13 14:44:50,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:44:50,825 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 49 transitions. [2024-11-13 14:44:50,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-13 14:44:50,825 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:44:50,826 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-13 14:44:50,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 14:44:50,826 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 14:44:50,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:44:50,827 INFO L85 PathProgramCache]: Analyzing trace with hash 889568262, now seen corresponding path program 1 times [2024-11-13 14:44:50,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:44:50,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594174010] [2024-11-13 14:44:50,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:44:50,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:44:50,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:44:50,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [109858248] [2024-11-13 14:44:50,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:44:50,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:44:50,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:44:50,842 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:44:50,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 14:44:50,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:44:50,886 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 14:44:50,891 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:44:50,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:44:50,926 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:44:50,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:44:50,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594174010] [2024-11-13 14:44:50,927 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:44:50,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [109858248] [2024-11-13 14:44:50,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [109858248] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:44:50,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:44:50,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:44:50,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953584637] [2024-11-13 14:44:50,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:44:50,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:44:50,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:44:50,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:44:50,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:44:50,933 INFO L87 Difference]: Start difference. First operand 46 states and 49 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:44:51,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:44:51,047 INFO L93 Difference]: Finished difference Result 49 states and 49 transitions. [2024-11-13 14:44:51,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:44:51,048 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-13 14:44:51,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:44:51,050 INFO L225 Difference]: With dead ends: 49 [2024-11-13 14:44:51,051 INFO L226 Difference]: Without dead ends: 46 [2024-11-13 14:44:51,052 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 14:44:51,053 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 9 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:44:51,055 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 33 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:44:51,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-11-13 14:44:51,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-11-13 14:44:51,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 34 states have (on average 1.3529411764705883) internal successors, (46), 45 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:44:51,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 46 transitions. [2024-11-13 14:44:51,068 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 46 transitions. Word has length 6 [2024-11-13 14:44:51,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:44:51,068 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 46 transitions. [2024-11-13 14:44:51,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:44:51,069 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 46 transitions. [2024-11-13 14:44:51,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-13 14:44:51,070 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:44:51,071 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:44:51,095 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 14:44:51,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:44:51,272 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 14:44:51,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:44:51,272 INFO L85 PathProgramCache]: Analyzing trace with hash -697585296, now seen corresponding path program 1 times [2024-11-13 14:44:51,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:44:51,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705495119] [2024-11-13 14:44:51,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:44:51,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:44:51,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:44:51,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:44:51,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:44:51,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705495119] [2024-11-13 14:44:51,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705495119] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:44:51,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:44:51,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:44:51,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328386862] [2024-11-13 14:44:51,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:44:51,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:44:51,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:44:51,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:44:51,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:44:51,422 INFO L87 Difference]: Start difference. First operand 46 states and 46 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:44:51,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:44:51,472 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2024-11-13 14:44:51,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:44:51,473 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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 16 [2024-11-13 14:44:51,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:44:51,474 INFO L225 Difference]: With dead ends: 49 [2024-11-13 14:44:51,474 INFO L226 Difference]: Without dead ends: 48 [2024-11-13 14:44:51,475 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 14:44:51,476 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 1 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:44:51,476 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 52 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:44:51,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2024-11-13 14:44:51,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 47. [2024-11-13 14:44:51,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 35 states have (on average 1.3428571428571427) internal successors, (47), 46 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:44:51,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 47 transitions. [2024-11-13 14:44:51,483 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 47 transitions. Word has length 16 [2024-11-13 14:44:51,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:44:51,484 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 47 transitions. [2024-11-13 14:44:51,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:44:51,484 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 47 transitions. [2024-11-13 14:44:51,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-13 14:44:51,485 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:44:51,485 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:44:51,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 14:44:51,486 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 14:44:51,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:44:51,486 INFO L85 PathProgramCache]: Analyzing trace with hash -150307628, now seen corresponding path program 1 times [2024-11-13 14:44:51,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:44:51,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651903981] [2024-11-13 14:44:51,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:44:51,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:44:51,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:44:51,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:44:51,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:44:51,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651903981] [2024-11-13 14:44:51,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651903981] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:44:51,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:44:51,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:44:51,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140000506] [2024-11-13 14:44:51,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:44:51,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:44:51,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:44:51,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:44:51,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:44:51,639 INFO L87 Difference]: Start difference. First operand 47 states and 47 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:44:51,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:44:51,686 INFO L93 Difference]: Finished difference Result 49 states and 49 transitions. [2024-11-13 14:44:51,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:44:51,687 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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 17 [2024-11-13 14:44:51,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:44:51,688 INFO L225 Difference]: With dead ends: 49 [2024-11-13 14:44:51,688 INFO L226 Difference]: Without dead ends: 48 [2024-11-13 14:44:51,688 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 14:44:51,689 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 0 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:44:51,689 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 53 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:44:51,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2024-11-13 14:44:51,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2024-11-13 14:44:51,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 36 states have (on average 1.3333333333333333) internal successors, (48), 47 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:44:51,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 48 transitions. [2024-11-13 14:44:51,701 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 48 transitions. Word has length 17 [2024-11-13 14:44:51,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:44:51,704 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 48 transitions. [2024-11-13 14:44:51,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:44:51,705 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 48 transitions. [2024-11-13 14:44:51,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-13 14:44:51,705 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:44:51,705 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:44:51,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 14:44:51,706 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 14:44:51,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:44:51,706 INFO L85 PathProgramCache]: Analyzing trace with hash -364569102, now seen corresponding path program 1 times [2024-11-13 14:44:51,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:44:51,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574103150] [2024-11-13 14:44:51,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:44:51,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:44:51,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:44:51,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:44:51,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:44:51,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574103150] [2024-11-13 14:44:51,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574103150] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:44:51,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:44:51,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:44:51,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735013850] [2024-11-13 14:44:51,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:44:51,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:44:51,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:44:51,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:44:51,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:44:51,836 INFO L87 Difference]: Start difference. First operand 48 states and 48 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 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 14:44:51,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:44:51,903 INFO L93 Difference]: Finished difference Result 51 states and 52 transitions. [2024-11-13 14:44:51,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:44:51,906 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 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) Word has length 18 [2024-11-13 14:44:51,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:44:51,907 INFO L225 Difference]: With dead ends: 51 [2024-11-13 14:44:51,907 INFO L226 Difference]: Without dead ends: 50 [2024-11-13 14:44:51,907 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 14:44:51,908 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 1 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:44:51,908 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 46 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:44:51,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-11-13 14:44:51,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 49. [2024-11-13 14:44:51,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 37 states have (on average 1.3243243243243243) internal successors, (49), 48 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:44:51,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 49 transitions. [2024-11-13 14:44:51,915 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 49 transitions. Word has length 18 [2024-11-13 14:44:51,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:44:51,915 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 49 transitions. [2024-11-13 14:44:51,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 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 14:44:51,916 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 49 transitions. [2024-11-13 14:44:51,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-13 14:44:51,916 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:44:51,916 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:44:51,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 14:44:51,917 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 14:44:51,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:44:51,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1583259798, now seen corresponding path program 1 times [2024-11-13 14:44:51,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:44:51,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549289816] [2024-11-13 14:44:51,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:44:51,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:44:51,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:44:51,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:44:51,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:44:51,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549289816] [2024-11-13 14:44:51,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549289816] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:44:51,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:44:51,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:44:51,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401831102] [2024-11-13 14:44:51,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:44:51,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:44:51,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:44:51,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:44:51,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:44:51,978 INFO L87 Difference]: Start difference. First operand 49 states and 49 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:44:52,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:44:52,030 INFO L93 Difference]: Finished difference Result 51 states and 51 transitions. [2024-11-13 14:44:52,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:44:52,031 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 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 19 [2024-11-13 14:44:52,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:44:52,032 INFO L225 Difference]: With dead ends: 51 [2024-11-13 14:44:52,032 INFO L226 Difference]: Without dead ends: 50 [2024-11-13 14:44:52,032 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 14:44:52,033 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:44:52,033 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 47 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:44:52,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-11-13 14:44:52,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2024-11-13 14:44:52,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 38 states have (on average 1.3157894736842106) internal successors, (50), 49 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:44:52,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 50 transitions. [2024-11-13 14:44:52,048 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 50 transitions. Word has length 19 [2024-11-13 14:44:52,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:44:52,049 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 50 transitions. [2024-11-13 14:44:52,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:44:52,049 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 50 transitions. [2024-11-13 14:44:52,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-13 14:44:52,050 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:44:52,050 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:44:52,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 14:44:52,050 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 14:44:52,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:44:52,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1836413556, now seen corresponding path program 1 times [2024-11-13 14:44:52,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:44:52,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931098116] [2024-11-13 14:44:52,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:44:52,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:44:52,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:44:52,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:44:52,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:44:52,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931098116] [2024-11-13 14:44:52,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931098116] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:44:52,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:44:52,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:44:52,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525584246] [2024-11-13 14:44:52,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:44:52,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:44:52,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:44:52,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:44:52,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:44:52,110 INFO L87 Difference]: Start difference. First operand 50 states and 50 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 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 14:44:52,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:44:52,134 INFO L93 Difference]: Finished difference Result 50 states and 50 transitions. [2024-11-13 14:44:52,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:44:52,135 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 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) Word has length 20 [2024-11-13 14:44:52,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:44:52,136 INFO L225 Difference]: With dead ends: 50 [2024-11-13 14:44:52,137 INFO L226 Difference]: Without dead ends: 49 [2024-11-13 14:44:52,137 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 14:44:52,138 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 9 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:44:52,138 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 26 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:44:52,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2024-11-13 14:44:52,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2024-11-13 14:44:52,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 38 states have (on average 1.2894736842105263) internal successors, (49), 48 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:44:52,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 49 transitions. [2024-11-13 14:44:52,148 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 49 transitions. Word has length 20 [2024-11-13 14:44:52,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:44:52,148 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 49 transitions. [2024-11-13 14:44:52,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 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 14:44:52,149 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 49 transitions. [2024-11-13 14:44:52,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-13 14:44:52,149 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:44:52,149 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:44:52,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 14:44:52,150 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 14:44:52,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:44:52,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1094245464, now seen corresponding path program 1 times [2024-11-13 14:44:52,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:44:52,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325257578] [2024-11-13 14:44:52,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:44:52,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:44:52,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:44:52,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:44:52,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:44:52,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325257578] [2024-11-13 14:44:52,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325257578] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:44:52,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:44:52,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:44:52,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085305198] [2024-11-13 14:44:52,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:44:52,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:44:52,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:44:52,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:44:52,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:44:52,221 INFO L87 Difference]: Start difference. First operand 49 states and 49 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:44:52,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:44:52,245 INFO L93 Difference]: Finished difference Result 52 states and 52 transitions. [2024-11-13 14:44:52,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:44:52,246 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 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) Word has length 21 [2024-11-13 14:44:52,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:44:52,247 INFO L225 Difference]: With dead ends: 52 [2024-11-13 14:44:52,247 INFO L226 Difference]: Without dead ends: 51 [2024-11-13 14:44:52,247 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 14:44:52,248 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:44:52,249 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 52 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:44:52,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-11-13 14:44:52,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2024-11-13 14:44:52,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 40 states have (on average 1.275) internal successors, (51), 50 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:44:52,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 51 transitions. [2024-11-13 14:44:52,254 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 51 transitions. Word has length 21 [2024-11-13 14:44:52,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:44:52,255 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 51 transitions. [2024-11-13 14:44:52,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:44:52,255 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2024-11-13 14:44:52,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-13 14:44:52,256 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:44:52,256 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:44:52,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 14:44:52,257 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 14:44:52,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:44:52,257 INFO L85 PathProgramCache]: Analyzing trace with hash -697095430, now seen corresponding path program 1 times [2024-11-13 14:44:52,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:44:52,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678710869] [2024-11-13 14:44:52,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:44:52,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:44:52,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:44:52,366 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:44:52,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:44:52,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678710869] [2024-11-13 14:44:52,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678710869] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:44:52,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [865180657] [2024-11-13 14:44:52,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:44:52,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:44:52,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:44:52,370 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:44:52,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 14:44:52,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:44:52,425 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 14:44:52,426 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:44:52,512 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:44:52,513 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:44:52,596 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:44:52,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [865180657] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:44:52,597 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:44:52,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-11-13 14:44:52,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793194861] [2024-11-13 14:44:52,597 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:44:52,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:44:52,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:44:52,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:44:52,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:44:52,599 INFO L87 Difference]: Start difference. First operand 51 states and 51 transitions. Second operand has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 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 14:44:52,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:44:52,716 INFO L93 Difference]: Finished difference Result 79 states and 87 transitions. [2024-11-13 14:44:52,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:44:52,717 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 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) Word has length 23 [2024-11-13 14:44:52,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:44:52,718 INFO L225 Difference]: With dead ends: 79 [2024-11-13 14:44:52,718 INFO L226 Difference]: Without dead ends: 76 [2024-11-13 14:44:52,719 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:44:52,720 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 35 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:44:52,720 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 43 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:44:52,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-11-13 14:44:52,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 48. [2024-11-13 14:44:52,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 40 states have (on average 1.2) internal successors, (48), 47 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:44:52,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 48 transitions. [2024-11-13 14:44:52,726 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 48 transitions. Word has length 23 [2024-11-13 14:44:52,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:44:52,726 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 48 transitions. [2024-11-13 14:44:52,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 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 14:44:52,727 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 48 transitions. [2024-11-13 14:44:52,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-13 14:44:52,727 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:44:52,728 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:44:52,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-13 14:44:52,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-13 14:44:52,929 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 14:44:52,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:44:52,929 INFO L85 PathProgramCache]: Analyzing trace with hash 106191260, now seen corresponding path program 1 times [2024-11-13 14:44:52,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:44:52,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860196968] [2024-11-13 14:44:52,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:44:52,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:44:52,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:44:52,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [86606372] [2024-11-13 14:44:52,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:44:52,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:44:52,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:44:52,954 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:44:52,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 14:44:53,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:44:53,023 INFO L255 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 14:44:53,025 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:44:53,160 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 14:44:53,161 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:44:53,298 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 14:44:53,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:44:53,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860196968] [2024-11-13 14:44:53,299 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:44:53,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [86606372] [2024-11-13 14:44:53,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [86606372] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:44:53,299 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:44:53,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2024-11-13 14:44:53,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22768557] [2024-11-13 14:44:53,299 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:44:53,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:44:53,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:44:53,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:44:53,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:44:53,301 INFO L87 Difference]: Start difference. First operand 48 states and 48 transitions. Second operand has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:44:53,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:44:53,448 INFO L93 Difference]: Finished difference Result 101 states and 107 transitions. [2024-11-13 14:44:53,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:44:53,449 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 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 25 [2024-11-13 14:44:53,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:44:53,450 INFO L225 Difference]: With dead ends: 101 [2024-11-13 14:44:53,450 INFO L226 Difference]: Without dead ends: 98 [2024-11-13 14:44:53,450 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:44:53,451 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 48 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:44:53,451 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 62 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:44:53,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-13 14:44:53,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 88. [2024-11-13 14:44:53,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 82 states have (on average 1.1951219512195121) internal successors, (98), 87 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:44:53,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 98 transitions. [2024-11-13 14:44:53,460 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 98 transitions. Word has length 25 [2024-11-13 14:44:53,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:44:53,461 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 98 transitions. [2024-11-13 14:44:53,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:44:53,461 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 98 transitions. [2024-11-13 14:44:53,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-13 14:44:53,462 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:44:53,462 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:44:53,484 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 14:44:53,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-13 14:44:53,666 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 14:44:53,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:44:53,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1574620038, now seen corresponding path program 1 times [2024-11-13 14:44:53,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:44:53,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000511630] [2024-11-13 14:44:53,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:44:53,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:44:53,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:44:53,799 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:44:53,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:44:53,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000511630] [2024-11-13 14:44:53,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000511630] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:44:53,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [290185000] [2024-11-13 14:44:53,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:44:53,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:44:53,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:44:53,803 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:44:53,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 14:44:53,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:44:53,865 INFO L255 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 14:44:53,866 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:44:54,211 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:44:54,212 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:44:54,372 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:44:54,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [290185000] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:44:54,372 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:44:54,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-13 14:44:54,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365810156] [2024-11-13 14:44:54,375 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:44:54,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 14:44:54,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:44:54,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 14:44:54,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-13 14:44:54,378 INFO L87 Difference]: Start difference. First operand 88 states and 98 transitions. Second operand has 11 states, 10 states have (on average 10.3) internal successors, (103), 11 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:44:54,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:44:54,472 INFO L93 Difference]: Finished difference Result 88 states and 98 transitions. [2024-11-13 14:44:54,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 14:44:54,473 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 10.3) internal successors, (103), 11 states have internal predecessors, (103), 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 35 [2024-11-13 14:44:54,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:44:54,473 INFO L225 Difference]: With dead ends: 88 [2024-11-13 14:44:54,473 INFO L226 Difference]: Without dead ends: 86 [2024-11-13 14:44:54,474 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-13 14:44:54,474 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 28 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:44:54,475 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 70 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:44:54,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-13 14:44:54,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2024-11-13 14:44:54,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 82 states have (on average 1.1219512195121952) internal successors, (92), 85 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:44:54,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 92 transitions. [2024-11-13 14:44:54,487 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 92 transitions. Word has length 35 [2024-11-13 14:44:54,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:44:54,488 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 92 transitions. [2024-11-13 14:44:54,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 10.3) internal successors, (103), 11 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:44:54,488 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 92 transitions. [2024-11-13 14:44:54,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-13 14:44:54,488 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:44:54,489 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:44:54,515 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-13 14:44:54,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-13 14:44:54,690 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 14:44:54,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:44:54,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1568580990, now seen corresponding path program 1 times [2024-11-13 14:44:54,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:44:54,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773618893] [2024-11-13 14:44:54,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:44:54,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:44:54,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:44:54,814 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:44:54,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:44:54,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773618893] [2024-11-13 14:44:54,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773618893] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:44:54,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [695616653] [2024-11-13 14:44:54,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:44:54,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:44:54,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:44:54,817 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:44:54,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 14:44:54,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:44:54,880 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 14:44:54,882 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:44:55,204 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:44:55,205 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:44:55,371 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:44:55,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [695616653] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:44:55,372 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:44:55,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-13 14:44:55,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785189877] [2024-11-13 14:44:55,372 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:44:55,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 14:44:55,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:44:55,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 14:44:55,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-13 14:44:55,374 INFO L87 Difference]: Start difference. First operand 86 states and 92 transitions. Second operand has 11 states, 10 states have (on average 10.6) internal successors, (106), 11 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:44:55,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:44:55,512 INFO L93 Difference]: Finished difference Result 87 states and 92 transitions. [2024-11-13 14:44:55,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 14:44:55,513 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 10.6) internal successors, (106), 11 states have internal predecessors, (106), 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 36 [2024-11-13 14:44:55,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:44:55,514 INFO L225 Difference]: With dead ends: 87 [2024-11-13 14:44:55,514 INFO L226 Difference]: Without dead ends: 86 [2024-11-13 14:44:55,514 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2024-11-13 14:44:55,515 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 17 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:44:55,515 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 119 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:44:55,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-13 14:44:55,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2024-11-13 14:44:55,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 82 states have (on average 1.1097560975609757) internal successors, (91), 85 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:44:55,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 91 transitions. [2024-11-13 14:44:55,524 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 91 transitions. Word has length 36 [2024-11-13 14:44:55,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:44:55,524 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 91 transitions. [2024-11-13 14:44:55,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 10.6) internal successors, (106), 11 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:44:55,525 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 91 transitions. [2024-11-13 14:44:55,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-13 14:44:55,526 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:44:55,526 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-13 14:44:55,574 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-13 14:44:55,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-13 14:44:55,730 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 14:44:55,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:44:55,731 INFO L85 PathProgramCache]: Analyzing trace with hash -127187264, now seen corresponding path program 1 times [2024-11-13 14:44:55,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:44:55,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878057306] [2024-11-13 14:44:55,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:44:55,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:44:55,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:44:55,824 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:44:55,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:44:55,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878057306] [2024-11-13 14:44:55,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878057306] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:44:55,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1987267318] [2024-11-13 14:44:55,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:44:55,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:44:55,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:44:55,827 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:44:55,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 14:44:55,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:44:55,888 INFO L255 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 14:44:55,890 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:44:56,131 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:44:56,131 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:44:56,273 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:44:56,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1987267318] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:44:56,274 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:44:56,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-13 14:44:56,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107729664] [2024-11-13 14:44:56,274 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:44:56,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 14:44:56,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:44:56,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 14:44:56,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2024-11-13 14:44:56,276 INFO L87 Difference]: Start difference. First operand 86 states and 91 transitions. Second operand has 11 states, 10 states have (on average 11.2) internal successors, (112), 11 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:44:56,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:44:56,397 INFO L93 Difference]: Finished difference Result 87 states and 91 transitions. [2024-11-13 14:44:56,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 14:44:56,398 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 11.2) internal successors, (112), 11 states have internal predecessors, (112), 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 38 [2024-11-13 14:44:56,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:44:56,399 INFO L225 Difference]: With dead ends: 87 [2024-11-13 14:44:56,399 INFO L226 Difference]: Without dead ends: 86 [2024-11-13 14:44:56,399 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2024-11-13 14:44:56,400 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 17 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:44:56,401 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 108 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:44:56,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-13 14:44:56,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2024-11-13 14:44:56,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 82 states have (on average 1.0853658536585367) internal successors, (89), 85 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:44:56,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 89 transitions. [2024-11-13 14:44:56,408 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 89 transitions. Word has length 38 [2024-11-13 14:44:56,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:44:56,409 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 89 transitions. [2024-11-13 14:44:56,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 11.2) internal successors, (112), 11 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:44:56,409 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 89 transitions. [2024-11-13 14:44:56,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-13 14:44:56,410 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:44:56,410 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2024-11-13 14:44:56,435 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-13 14:44:56,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-13 14:44:56,611 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 14:44:56,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:44:56,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1967874046, now seen corresponding path program 1 times [2024-11-13 14:44:56,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:44:56,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219101752] [2024-11-13 14:44:56,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:44:56,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:44:56,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:44:56,714 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:44:56,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:44:56,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219101752] [2024-11-13 14:44:56,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219101752] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:44:56,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1270591404] [2024-11-13 14:44:56,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:44:56,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:44:56,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:44:56,718 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:44:56,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-13 14:44:56,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:44:56,794 INFO L255 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 14:44:56,795 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:44:56,882 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:44:56,882 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:44:56,999 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:44:56,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1270591404] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:44:57,000 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:44:57,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-11-13 14:44:57,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625135004] [2024-11-13 14:44:57,000 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:44:57,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:44:57,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:44:57,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:44:57,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:44:57,002 INFO L87 Difference]: Start difference. First operand 86 states and 89 transitions. Second operand has 6 states, 5 states have (on average 15.8) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:44:57,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:44:57,067 INFO L93 Difference]: Finished difference Result 104 states and 107 transitions. [2024-11-13 14:44:57,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:44:57,068 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.8) internal successors, (79), 6 states have internal predecessors, (79), 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 40 [2024-11-13 14:44:57,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:44:57,068 INFO L225 Difference]: With dead ends: 104 [2024-11-13 14:44:57,069 INFO L226 Difference]: Without dead ends: 103 [2024-11-13 14:44:57,070 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:44:57,071 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 2 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:44:57,071 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 89 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:44:57,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-11-13 14:44:57,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 101. [2024-11-13 14:44:57,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 97 states have (on average 1.0721649484536082) internal successors, (104), 100 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:44:57,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 104 transitions. [2024-11-13 14:44:57,086 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 104 transitions. Word has length 40 [2024-11-13 14:44:57,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:44:57,086 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 104 transitions. [2024-11-13 14:44:57,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.8) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:44:57,087 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 104 transitions. [2024-11-13 14:44:57,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-13 14:44:57,088 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:44:57,088 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1] [2024-11-13 14:44:57,117 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-13 14:44:57,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-13 14:44:57,289 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 14:44:57,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:44:57,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1971443860, now seen corresponding path program 2 times [2024-11-13 14:44:57,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:44:57,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071331078] [2024-11-13 14:44:57,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:44:57,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:44:57,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:44:57,596 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:44:57,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:44:57,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071331078] [2024-11-13 14:44:57,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071331078] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:44:57,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [446989785] [2024-11-13 14:44:57,598 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 14:44:57,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:44:57,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:44:57,601 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:44:57,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-13 14:44:57,662 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 14:44:57,662 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:44:57,663 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 14:44:57,665 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:44:58,203 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:44:58,203 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:44:58,500 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:44:58,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [446989785] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:44:58,501 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:44:58,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 19 [2024-11-13 14:44:58,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304062742] [2024-11-13 14:44:58,501 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:44:58,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-13 14:44:58,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:44:58,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-13 14:44:58,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2024-11-13 14:44:58,503 INFO L87 Difference]: Start difference. First operand 101 states and 104 transitions. Second operand has 20 states, 19 states have (on average 8.578947368421053) internal successors, (163), 20 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:44:58,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:44:58,850 INFO L93 Difference]: Finished difference Result 102 states and 104 transitions. [2024-11-13 14:44:58,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 14:44:58,851 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 8.578947368421053) internal successors, (163), 20 states have internal predecessors, (163), 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 55 [2024-11-13 14:44:58,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:44:58,852 INFO L225 Difference]: With dead ends: 102 [2024-11-13 14:44:58,852 INFO L226 Difference]: Without dead ends: 101 [2024-11-13 14:44:58,854 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=213, Invalid=437, Unknown=0, NotChecked=0, Total=650 [2024-11-13 14:44:58,856 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 78 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:44:58,856 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 237 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:44:58,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-13 14:44:58,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2024-11-13 14:44:58,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 97 states have (on average 1.0515463917525774) internal successors, (102), 100 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:44:58,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 102 transitions. [2024-11-13 14:44:58,867 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 102 transitions. Word has length 55 [2024-11-13 14:44:58,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:44:58,868 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 102 transitions. [2024-11-13 14:44:58,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 8.578947368421053) internal successors, (163), 20 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:44:58,868 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 102 transitions. [2024-11-13 14:44:58,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-13 14:44:58,869 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:44:58,873 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1] [2024-11-13 14:44:58,898 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-13 14:44:59,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-13 14:44:59,074 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 14:44:59,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:44:59,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1744225024, now seen corresponding path program 2 times [2024-11-13 14:44:59,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:44:59,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753883704] [2024-11-13 14:44:59,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:44:59,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:44:59,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:44:59,301 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:44:59,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:44:59,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753883704] [2024-11-13 14:44:59,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753883704] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:44:59,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [813858284] [2024-11-13 14:44:59,302 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 14:44:59,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:44:59,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:44:59,304 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:44:59,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-13 14:44:59,362 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 14:44:59,362 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:44:59,363 INFO L255 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 14:44:59,366 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:44:59,840 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:44:59,840 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:45:00,175 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:45:00,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [813858284] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:45:00,175 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:45:00,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 22 [2024-11-13 14:45:00,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817749356] [2024-11-13 14:45:00,176 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:45:00,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-13 14:45:00,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:45:00,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-13 14:45:00,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=352, Unknown=0, NotChecked=0, Total=506 [2024-11-13 14:45:00,178 INFO L87 Difference]: Start difference. First operand 101 states and 102 transitions. Second operand has 23 states, 22 states have (on average 10.272727272727273) internal successors, (226), 23 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:45:00,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:45:00,600 INFO L93 Difference]: Finished difference Result 160 states and 168 transitions. [2024-11-13 14:45:00,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-13 14:45:00,601 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 10.272727272727273) internal successors, (226), 23 states have internal predecessors, (226), 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 76 [2024-11-13 14:45:00,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:45:00,604 INFO L225 Difference]: With dead ends: 160 [2024-11-13 14:45:00,604 INFO L226 Difference]: Without dead ends: 159 [2024-11-13 14:45:00,605 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=305, Invalid=625, Unknown=0, NotChecked=0, Total=930 [2024-11-13 14:45:00,606 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 92 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:45:00,606 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 265 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:45:00,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2024-11-13 14:45:00,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 156. [2024-11-13 14:45:00,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 152 states have (on average 1.0789473684210527) internal successors, (164), 155 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:45:00,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 164 transitions. [2024-11-13 14:45:00,616 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 164 transitions. Word has length 76 [2024-11-13 14:45:00,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:45:00,617 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 164 transitions. [2024-11-13 14:45:00,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 10.272727272727273) internal successors, (226), 23 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:45:00,617 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 164 transitions. [2024-11-13 14:45:00,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-13 14:45:00,622 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:45:00,623 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1] [2024-11-13 14:45:00,648 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-13 14:45:00,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-13 14:45:00,824 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 14:45:00,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:45:00,824 INFO L85 PathProgramCache]: Analyzing trace with hash -115374970, now seen corresponding path program 2 times [2024-11-13 14:45:00,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:45:00,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762025120] [2024-11-13 14:45:00,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:45:00,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:45:00,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:45:00,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1051028989] [2024-11-13 14:45:00,867 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 14:45:00,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:45:00,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:45:00,873 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:45:00,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-13 14:45:00,945 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 14:45:00,946 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:45:00,947 INFO L255 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-13 14:45:00,950 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:45:01,158 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:45:01,159 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:45:01,562 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:45:01,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:45:01,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762025120] [2024-11-13 14:45:01,563 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:45:01,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1051028989] [2024-11-13 14:45:01,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1051028989] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:45:01,563 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:45:01,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-11-13 14:45:01,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945408088] [2024-11-13 14:45:01,564 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:45:01,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 14:45:01,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:45:01,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 14:45:01,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-11-13 14:45:01,566 INFO L87 Difference]: Start difference. First operand 156 states and 164 transitions. Second operand has 12 states, 11 states have (on average 14.818181818181818) internal successors, (163), 12 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:45:02,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:45:02,121 INFO L93 Difference]: Finished difference Result 213 states and 218 transitions. [2024-11-13 14:45:02,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 14:45:02,122 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 14.818181818181818) internal successors, (163), 12 states have internal predecessors, (163), 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 82 [2024-11-13 14:45:02,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:45:02,124 INFO L225 Difference]: With dead ends: 213 [2024-11-13 14:45:02,124 INFO L226 Difference]: Without dead ends: 212 [2024-11-13 14:45:02,124 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2024-11-13 14:45:02,125 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 102 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:45:02,126 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 190 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 14:45:02,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2024-11-13 14:45:02,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 200. [2024-11-13 14:45:02,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 196 states have (on average 1.0816326530612246) internal successors, (212), 199 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:45:02,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 212 transitions. [2024-11-13 14:45:02,137 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 212 transitions. Word has length 82 [2024-11-13 14:45:02,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:45:02,138 INFO L471 AbstractCegarLoop]: Abstraction has 200 states and 212 transitions. [2024-11-13 14:45:02,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 14.818181818181818) internal successors, (163), 12 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:45:02,138 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 212 transitions. [2024-11-13 14:45:02,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-13 14:45:02,139 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:45:02,139 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1] [2024-11-13 14:45:02,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-13 14:45:02,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-13 14:45:02,340 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 14:45:02,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:45:02,341 INFO L85 PathProgramCache]: Analyzing trace with hash 2069259348, now seen corresponding path program 3 times [2024-11-13 14:45:02,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:45:02,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515531547] [2024-11-13 14:45:02,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:45:02,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:45:02,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:45:02,784 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 174 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:45:02,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:45:02,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515531547] [2024-11-13 14:45:02,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515531547] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:45:02,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1857826567] [2024-11-13 14:45:02,785 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 14:45:02,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:45:02,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:45:02,787 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:45:02,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-13 14:45:02,865 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-13 14:45:02,866 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:45:02,867 INFO L255 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-13 14:45:02,870 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:45:03,894 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 174 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:45:03,894 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:45:04,597 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 174 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:45:04,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1857826567] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:45:04,598 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:45:04,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 37 [2024-11-13 14:45:04,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128011521] [2024-11-13 14:45:04,599 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:45:04,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-11-13 14:45:04,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:45:04,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-11-13 14:45:04,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=346, Invalid=1060, Unknown=0, NotChecked=0, Total=1406 [2024-11-13 14:45:04,603 INFO L87 Difference]: Start difference. First operand 200 states and 212 transitions. Second operand has 38 states, 37 states have (on average 7.486486486486487) internal successors, (277), 38 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:45:05,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:45:05,634 INFO L93 Difference]: Finished difference Result 202 states and 212 transitions. [2024-11-13 14:45:05,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-13 14:45:05,635 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 7.486486486486487) internal successors, (277), 38 states have internal predecessors, (277), 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 93 [2024-11-13 14:45:05,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:45:05,636 INFO L225 Difference]: With dead ends: 202 [2024-11-13 14:45:05,636 INFO L226 Difference]: Without dead ends: 201 [2024-11-13 14:45:05,638 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 939 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=952, Invalid=2240, Unknown=0, NotChecked=0, Total=3192 [2024-11-13 14:45:05,639 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 233 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 14:45:05,639 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 370 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 14:45:05,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2024-11-13 14:45:05,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 200. [2024-11-13 14:45:05,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 196 states have (on average 1.0612244897959184) internal successors, (208), 199 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:45:05,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 208 transitions. [2024-11-13 14:45:05,650 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 208 transitions. Word has length 93 [2024-11-13 14:45:05,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:45:05,650 INFO L471 AbstractCegarLoop]: Abstraction has 200 states and 208 transitions. [2024-11-13 14:45:05,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 7.486486486486487) internal successors, (277), 38 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:45:05,651 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 208 transitions. [2024-11-13 14:45:05,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-13 14:45:05,651 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:45:05,652 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1] [2024-11-13 14:45:05,675 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-13 14:45:05,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:45:05,856 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 14:45:05,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:45:05,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1715799000, now seen corresponding path program 2 times [2024-11-13 14:45:05,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:45:05,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422094427] [2024-11-13 14:45:05,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:45:05,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:45:05,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:45:06,168 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:45:06,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:45:06,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422094427] [2024-11-13 14:45:06,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422094427] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:45:06,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [453898571] [2024-11-13 14:45:06,169 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 14:45:06,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:45:06,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:45:06,172 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:45:06,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-13 14:45:06,245 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 14:45:06,245 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:45:06,247 INFO L255 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-13 14:45:06,249 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:45:06,755 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 108 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:45:06,755 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:45:07,141 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:45:07,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [453898571] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:45:07,142 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:45:07,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 26 [2024-11-13 14:45:07,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797350780] [2024-11-13 14:45:07,142 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:45:07,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-13 14:45:07,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:45:07,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-13 14:45:07,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=532, Unknown=0, NotChecked=0, Total=702 [2024-11-13 14:45:07,145 INFO L87 Difference]: Start difference. First operand 200 states and 208 transitions. Second operand has 27 states, 26 states have (on average 10.307692307692308) internal successors, (268), 27 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:45:07,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:45:07,532 INFO L93 Difference]: Finished difference Result 200 states and 208 transitions. [2024-11-13 14:45:07,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 14:45:07,533 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 10.307692307692308) internal successors, (268), 27 states have internal predecessors, (268), 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 97 [2024-11-13 14:45:07,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:45:07,534 INFO L225 Difference]: With dead ends: 200 [2024-11-13 14:45:07,534 INFO L226 Difference]: Without dead ends: 199 [2024-11-13 14:45:07,535 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=376, Invalid=884, Unknown=0, NotChecked=0, Total=1260 [2024-11-13 14:45:07,536 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 91 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:45:07,536 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 390 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:45:07,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2024-11-13 14:45:07,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2024-11-13 14:45:07,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 196 states have (on average 1.030612244897959) internal successors, (202), 198 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:45:07,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 202 transitions. [2024-11-13 14:45:07,559 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 202 transitions. Word has length 97 [2024-11-13 14:45:07,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:45:07,559 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 202 transitions. [2024-11-13 14:45:07,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 10.307692307692308) internal successors, (268), 27 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:45:07,560 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 202 transitions. [2024-11-13 14:45:07,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-13 14:45:07,561 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:45:07,562 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 1, 1, 1] [2024-11-13 14:45:07,587 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-13 14:45:07,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2024-11-13 14:45:07,762 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 14:45:07,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:45:07,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1731472256, now seen corresponding path program 3 times [2024-11-13 14:45:07,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:45:07,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52759392] [2024-11-13 14:45:07,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:45:07,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:45:07,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:45:08,327 INFO L134 CoverageAnalysis]: Checked inductivity of 518 backedges. 0 proven. 518 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:45:08,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:45:08,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52759392] [2024-11-13 14:45:08,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52759392] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:45:08,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1813703565] [2024-11-13 14:45:08,330 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 14:45:08,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:45:08,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:45:08,332 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:45:08,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-13 14:45:08,442 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-13 14:45:08,442 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:45:08,444 INFO L255 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-13 14:45:08,447 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:45:15,417 INFO L134 CoverageAnalysis]: Checked inductivity of 518 backedges. 292 proven. 96 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-11-13 14:45:15,417 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:45:17,464 INFO L134 CoverageAnalysis]: Checked inductivity of 518 backedges. 292 proven. 96 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-11-13 14:45:17,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1813703565] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:45:17,465 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:45:17,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17, 17] total 48 [2024-11-13 14:45:17,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831887595] [2024-11-13 14:45:17,465 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:45:17,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2024-11-13 14:45:17,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:45:17,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2024-11-13 14:45:17,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=2167, Unknown=2, NotChecked=0, Total=2352 [2024-11-13 14:45:17,468 INFO L87 Difference]: Start difference. First operand 199 states and 202 transitions. Second operand has 49 states, 48 states have (on average 6.541666666666667) internal successors, (314), 49 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:45:23,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:45:27,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.47s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:45:35,406 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:45:39,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:45:44,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:45:56,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:46:00,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:46:05,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:46:10,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:46:15,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:46:19,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:46:23,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:46:27,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:46:34,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:46:38,795 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:46:47,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:46:51,044 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:46:55,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:47:05,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:47:09,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:47:13,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:47:23,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:47:28,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.84s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:47:40,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:47:44,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.92s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:47:48,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:48:00,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:48:10,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:48:14,814 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:48:30,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:48:34,257 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:49:05,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:49:09,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:49:29,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:49:33,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:49:45,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.05s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:49:55,462 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:50:14,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:50:27,285 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:50:31,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:50:49,746 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:50:53,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:51:02,057 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:51:06,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:51:39,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:51:44,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:51:48,090 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.84s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:52:16,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:52:22,507 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:52:24,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:52:34,790 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:52:34,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:52:34,891 INFO L93 Difference]: Finished difference Result 199 states and 202 transitions. [2024-11-13 14:52:34,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2024-11-13 14:52:34,891 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 48 states have (on average 6.541666666666667) internal successors, (314), 49 states have internal predecessors, (314), 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 152 [2024-11-13 14:52:34,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:52:34,892 INFO L225 Difference]: With dead ends: 199 [2024-11-13 14:52:34,892 INFO L226 Difference]: Without dead ends: 198 [2024-11-13 14:52:34,894 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1957 ImplicationChecksByTransitivity, 237.8s TimeCoverageRelationStatistics Valid=1986, Invalid=7884, Unknown=30, NotChecked=0, Total=9900 [2024-11-13 14:52:34,895 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 443 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 137 mSolverCounterUnsat, 46 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 207.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 46 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 207.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:52:34,896 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [443 Valid, 29 Invalid, 953 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 770 Invalid, 46 Unknown, 0 Unchecked, 207.4s Time] [2024-11-13 14:52:34,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2024-11-13 14:52:34,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2024-11-13 14:52:34,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 196 states have (on average 1.0153061224489797) internal successors, (199), 197 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:52:34,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 199 transitions. [2024-11-13 14:52:34,913 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 199 transitions. Word has length 152 [2024-11-13 14:52:34,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:52:34,917 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 199 transitions. [2024-11-13 14:52:34,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 48 states have (on average 6.541666666666667) internal successors, (314), 49 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:52:34,918 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 199 transitions. [2024-11-13 14:52:34,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-13 14:52:34,919 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:52:34,919 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 1, 1, 1] [2024-11-13 14:52:34,927 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-13 14:52:35,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:52:35,121 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 14:52:35,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:52:35,121 INFO L85 PathProgramCache]: Analyzing trace with hash -897119276, now seen corresponding path program 4 times [2024-11-13 14:52:35,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:52:35,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835719363] [2024-11-13 14:52:35,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:52:35,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:52:35,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:36,134 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:52:36,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:52:36,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835719363] [2024-11-13 14:52:36,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835719363] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:52:36,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1883726556] [2024-11-13 14:52:36,135 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-13 14:52:36,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:52:36,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:52:36,137 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:52:36,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-13 14:52:36,202 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-13 14:52:36,203 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:52:36,204 INFO L255 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-13 14:52:36,206 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:52:38,019 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:52:38,020 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:52:39,455 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:52:39,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1883726556] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:52:39,458 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:52:39,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 73 [2024-11-13 14:52:39,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732506650] [2024-11-13 14:52:39,458 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:52:39,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 74 states [2024-11-13 14:52:39,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:52:39,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2024-11-13 14:52:39,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1206, Invalid=4196, Unknown=0, NotChecked=0, Total=5402 [2024-11-13 14:52:39,463 INFO L87 Difference]: Start difference. First operand 198 states and 199 transitions. Second operand has 74 states, 73 states have (on average 6.917808219178082) internal successors, (505), 74 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:52:43,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:52:43,265 INFO L93 Difference]: Finished difference Result 330 states and 337 transitions. [2024-11-13 14:52:43,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-11-13 14:52:43,266 INFO L78 Accepts]: Start accepts. Automaton has has 74 states, 73 states have (on average 6.917808219178082) internal successors, (505), 74 states have internal predecessors, (505), 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 169 [2024-11-13 14:52:43,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:52:43,268 INFO L225 Difference]: With dead ends: 330 [2024-11-13 14:52:43,268 INFO L226 Difference]: Without dead ends: 329 [2024-11-13 14:52:43,271 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 408 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4795 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=4098, Invalid=10422, Unknown=0, NotChecked=0, Total=14520 [2024-11-13 14:52:43,273 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 614 mSDsluCounter, 744 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 614 SdHoareTripleChecker+Valid, 760 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:52:43,273 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [614 Valid, 760 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 14:52:43,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2024-11-13 14:52:43,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 323. [2024-11-13 14:52:43,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 321 states have (on average 1.0249221183800623) internal successors, (329), 322 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:52:43,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 329 transitions. [2024-11-13 14:52:43,299 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 329 transitions. Word has length 169 [2024-11-13 14:52:43,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:52:43,300 INFO L471 AbstractCegarLoop]: Abstraction has 323 states and 329 transitions. [2024-11-13 14:52:43,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 74 states, 73 states have (on average 6.917808219178082) internal successors, (505), 74 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:52:43,300 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 329 transitions. [2024-11-13 14:52:43,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-13 14:52:43,302 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:52:43,302 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1] [2024-11-13 14:52:43,325 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-13 14:52:43,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:52:43,509 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 14:52:43,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:52:43,510 INFO L85 PathProgramCache]: Analyzing trace with hash -2118891194, now seen corresponding path program 3 times [2024-11-13 14:52:43,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:52:43,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218260005] [2024-11-13 14:52:43,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:52:43,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:52:43,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:52:43,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [550098218] [2024-11-13 14:52:43,560 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 14:52:43,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:52:43,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:52:43,562 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:52:43,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-13 14:52:43,622 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-13 14:52:43,622 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:52:43,623 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-13 14:52:43,626 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:52:43,918 INFO L134 CoverageAnalysis]: Checked inductivity of 895 backedges. 263 proven. 12 refuted. 0 times theorem prover too weak. 620 trivial. 0 not checked. [2024-11-13 14:52:43,918 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:52:44,535 INFO L134 CoverageAnalysis]: Checked inductivity of 895 backedges. 263 proven. 12 refuted. 0 times theorem prover too weak. 620 trivial. 0 not checked. [2024-11-13 14:52:44,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:52:44,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218260005] [2024-11-13 14:52:44,536 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:52:44,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [550098218] [2024-11-13 14:52:44,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [550098218] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:52:44,536 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:52:44,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-11-13 14:52:44,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7501564] [2024-11-13 14:52:44,537 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:52:44,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-13 14:52:44,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:52:44,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-13 14:52:44,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2024-11-13 14:52:44,538 INFO L87 Difference]: Start difference. First operand 323 states and 329 transitions. Second operand has 15 states, 14 states have (on average 5.642857142857143) internal successors, (79), 15 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:52:45,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:52:45,120 INFO L93 Difference]: Finished difference Result 323 states and 329 transitions. [2024-11-13 14:52:45,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 14:52:45,121 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 5.642857142857143) internal successors, (79), 15 states have internal predecessors, (79), 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 196 [2024-11-13 14:52:45,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:52:45,123 INFO L225 Difference]: With dead ends: 323 [2024-11-13 14:52:45,123 INFO L226 Difference]: Without dead ends: 322 [2024-11-13 14:52:45,123 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 376 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=184, Invalid=416, Unknown=0, NotChecked=0, Total=600 [2024-11-13 14:52:45,124 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 155 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:52:45,124 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 7 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:52:45,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2024-11-13 14:52:45,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 322. [2024-11-13 14:52:45,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 321 states have (on average 1.0031152647975077) internal successors, (322), 321 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:52:45,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 322 transitions. [2024-11-13 14:52:45,164 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 322 transitions. Word has length 196 [2024-11-13 14:52:45,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:52:45,164 INFO L471 AbstractCegarLoop]: Abstraction has 322 states and 322 transitions. [2024-11-13 14:52:45,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 5.642857142857143) internal successors, (79), 15 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:52:45,164 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 322 transitions. [2024-11-13 14:52:45,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2024-11-13 14:52:45,168 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:52:45,168 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 1, 1, 1] [2024-11-13 14:52:45,189 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-13 14:52:45,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:52:45,369 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 14:52:45,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:52:45,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1659462956, now seen corresponding path program 5 times [2024-11-13 14:52:45,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:52:45,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201774413] [2024-11-13 14:52:45,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:52:45,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:52:45,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:48,770 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 0 proven. 2520 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:52:48,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:52:48,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201774413] [2024-11-13 14:52:48,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201774413] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:52:48,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2145002070] [2024-11-13 14:52:48,771 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-13 14:52:48,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:52:48,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:52:48,773 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:52:48,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-13 14:52:48,887 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 17 check-sat command(s) [2024-11-13 14:52:48,887 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:52:48,889 INFO L255 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 51 conjuncts are in the unsatisfiable core [2024-11-13 14:52:48,894 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:52:53,692 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 0 proven. 2520 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:52:53,692 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:52:58,336 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 0 proven. 2520 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:52:58,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2145002070] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:52:58,337 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:52:58,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 145 [2024-11-13 14:52:58,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710971080] [2024-11-13 14:52:58,337 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:52:58,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 146 states [2024-11-13 14:52:58,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:52:58,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 146 interpolants. [2024-11-13 14:52:58,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4462, Invalid=16708, Unknown=0, NotChecked=0, Total=21170 [2024-11-13 14:52:58,343 INFO L87 Difference]: Start difference. First operand 322 states and 322 transitions. Second operand has 146 states, 145 states have (on average 6.627586206896551) internal successors, (961), 146 states have internal predecessors, (961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:53:07,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:53:22,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:53:22,318 INFO L93 Difference]: Finished difference Result 627 states and 642 transitions. [2024-11-13 14:53:22,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2024-11-13 14:53:22,319 INFO L78 Accepts]: Start accepts. Automaton has has 146 states, 145 states have (on average 6.627586206896551) internal successors, (961), 146 states have internal predecessors, (961), 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 321 [2024-11-13 14:53:22,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:53:22,321 INFO L225 Difference]: With dead ends: 627 [2024-11-13 14:53:22,322 INFO L226 Difference]: Without dead ends: 626 [2024-11-13 14:53:22,328 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 793 GetRequests, 545 SyntacticMatches, 1 SemanticMatches, 247 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21674 ImplicationChecksByTransitivity, 27.1s TimeCoverageRelationStatistics Valid=17018, Invalid=44734, Unknown=0, NotChecked=0, Total=61752 [2024-11-13 14:53:22,328 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 2353 mSDsluCounter, 1439 mSDsCounter, 0 mSdLazyCounter, 783 mSolverCounterSat, 362 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2353 SdHoareTripleChecker+Valid, 1454 SdHoareTripleChecker+Invalid, 1146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 362 IncrementalHoareTripleChecker+Valid, 783 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:53:22,329 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2353 Valid, 1454 Invalid, 1146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [362 Valid, 783 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2024-11-13 14:53:22,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2024-11-13 14:53:22,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 626. [2024-11-13 14:53:22,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 626 states, 625 states have (on average 1.0016) internal successors, (626), 625 states have internal predecessors, (626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:53:22,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 626 states and 626 transitions. [2024-11-13 14:53:22,378 INFO L78 Accepts]: Start accepts. Automaton has 626 states and 626 transitions. Word has length 321 [2024-11-13 14:53:22,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:53:22,379 INFO L471 AbstractCegarLoop]: Abstraction has 626 states and 626 transitions. [2024-11-13 14:53:22,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 146 states, 145 states have (on average 6.627586206896551) internal successors, (961), 146 states have internal predecessors, (961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:53:22,380 INFO L276 IsEmpty]: Start isEmpty. Operand 626 states and 626 transitions. [2024-11-13 14:53:22,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 626 [2024-11-13 14:53:22,394 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:53:22,394 INFO L215 NwaCegarLoop]: trace histogram [33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 32, 32, 32, 32, 32, 1, 1, 1] [2024-11-13 14:53:22,414 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-13 14:53:22,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-13 14:53:22,595 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 14:53:22,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:53:22,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1533982932, now seen corresponding path program 6 times [2024-11-13 14:53:22,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:53:22,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613456227] [2024-11-13 14:53:22,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:53:22,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:53:23,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:34,412 INFO L134 CoverageAnalysis]: Checked inductivity of 9904 backedges. 0 proven. 9904 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:53:34,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:53:34,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613456227] [2024-11-13 14:53:34,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613456227] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:53:34,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1084130464] [2024-11-13 14:53:34,412 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-13 14:53:34,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:53:34,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:53:34,414 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:53:34,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-13 14:53:34,651 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 33 check-sat command(s) [2024-11-13 14:53:34,651 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:53:34,657 INFO L255 TraceCheckSpWp]: Trace formula consists of 927 conjuncts, 99 conjuncts are in the unsatisfiable core [2024-11-13 14:53:34,664 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:53:50,217 INFO L134 CoverageAnalysis]: Checked inductivity of 9904 backedges. 0 proven. 9904 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:53:50,217 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:54:09,504 INFO L134 CoverageAnalysis]: Checked inductivity of 9904 backedges. 0 proven. 9904 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:54:09,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1084130464] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:54:09,504 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:54:09,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [97, 97, 97] total 289 [2024-11-13 14:54:09,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957862207] [2024-11-13 14:54:09,505 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:54:09,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 290 states [2024-11-13 14:54:09,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:54:09,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 290 interpolants. [2024-11-13 14:54:09,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17118, Invalid=66692, Unknown=0, NotChecked=0, Total=83810 [2024-11-13 14:54:09,518 INFO L87 Difference]: Start difference. First operand 626 states and 626 transitions. Second operand has 290 states, 289 states have (on average 6.4809688581314875) internal successors, (1873), 290 states have internal predecessors, (1873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:56:23,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:56:23,320 INFO L93 Difference]: Finished difference Result 1235 states and 1266 transitions. [2024-11-13 14:56:23,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 252 states. [2024-11-13 14:56:23,322 INFO L78 Accepts]: Start accepts. Automaton has has 290 states, 289 states have (on average 6.4809688581314875) internal successors, (1873), 290 states have internal predecessors, (1873), 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 625 [2024-11-13 14:56:23,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:56:23,326 INFO L225 Difference]: With dead ends: 1235 [2024-11-13 14:56:23,326 INFO L226 Difference]: Without dead ends: 1234 [2024-11-13 14:56:23,337 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1560 GetRequests, 1057 SyntacticMatches, 0 SemanticMatches, 503 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91099 ImplicationChecksByTransitivity, 163.3s TimeCoverageRelationStatistics Valid=69354, Invalid=185166, Unknown=0, NotChecked=0, Total=254520 [2024-11-13 14:56:23,337 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 8472 mSDsluCounter, 2715 mSDsCounter, 0 mSdLazyCounter, 1540 mSolverCounterSat, 1254 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8472 SdHoareTripleChecker+Valid, 2730 SdHoareTripleChecker+Invalid, 2794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1254 IncrementalHoareTripleChecker+Valid, 1540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:56:23,338 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8472 Valid, 2730 Invalid, 2794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1254 Valid, 1540 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-13 14:56:23,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1234 states. [2024-11-13 14:56:23,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1234 to 1234. [2024-11-13 14:56:23,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1234 states, 1233 states have (on average 1.0008110300081103) internal successors, (1234), 1233 states have internal predecessors, (1234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:56:23,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1234 states to 1234 states and 1234 transitions. [2024-11-13 14:56:23,461 INFO L78 Accepts]: Start accepts. Automaton has 1234 states and 1234 transitions. Word has length 625 [2024-11-13 14:56:23,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:56:23,462 INFO L471 AbstractCegarLoop]: Abstraction has 1234 states and 1234 transitions. [2024-11-13 14:56:23,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 290 states, 289 states have (on average 6.4809688581314875) internal successors, (1873), 290 states have internal predecessors, (1873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:56:23,463 INFO L276 IsEmpty]: Start isEmpty. Operand 1234 states and 1234 transitions. [2024-11-13 14:56:23,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1234 [2024-11-13 14:56:23,477 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:56:23,477 INFO L215 NwaCegarLoop]: trace histogram [65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 64, 64, 64, 64, 64, 1, 1, 1] [2024-11-13 14:56:23,497 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-13 14:56:23,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:56:23,678 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 14:56:23,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:56:23,678 INFO L85 PathProgramCache]: Analyzing trace with hash 16970964, now seen corresponding path program 7 times [2024-11-13 14:56:23,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:56:23,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947221957] [2024-11-13 14:56:23,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:56:23,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:56:27,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:57:10,136 INFO L134 CoverageAnalysis]: Checked inductivity of 39264 backedges. 0 proven. 39264 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:57:10,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:57:10,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947221957] [2024-11-13 14:57:10,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947221957] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:57:10,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [829409038] [2024-11-13 14:57:10,136 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-13 14:57:10,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:57:10,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:57:10,138 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:57:10,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeddb53-a2e2-4127-ba46-88e23c093a31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-13 14:57:10,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:57:10,458 INFO L255 TraceCheckSpWp]: Trace formula consists of 1823 conjuncts, 195 conjuncts are in the unsatisfiable core [2024-11-13 14:57:10,476 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:58:05,020 INFO L134 CoverageAnalysis]: Checked inductivity of 39264 backedges. 0 proven. 39264 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:58:05,020 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:59:15,597 INFO L134 CoverageAnalysis]: Checked inductivity of 39264 backedges. 0 proven. 39264 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:59:15,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [829409038] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:59:15,598 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:59:15,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [193, 193, 193] total 577 [2024-11-13 14:59:15,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153916432] [2024-11-13 14:59:15,599 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:59:15,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 578 states [2024-11-13 14:59:15,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:59:15,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 578 interpolants. [2024-11-13 14:59:15,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67006, Invalid=266500, Unknown=0, NotChecked=0, Total=333506 [2024-11-13 14:59:15,635 INFO L87 Difference]: Start difference. First operand 1234 states and 1234 transitions. Second operand has 578 states, 577 states have (on average 6.407279029462738) internal successors, (3697), 578 states have internal predecessors, (3697), 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)