./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-industry-pattern/nested-3.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_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/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_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-industry-pattern/nested-3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/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_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/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 13e5ee77a02e52d8ba8ae9f3698472ae34be00d2574eddc823f2c8e804568236 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 14:04:01,240 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 14:04:01,306 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-13 14:04:01,311 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 14:04:01,311 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 14:04:01,335 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 14:04:01,336 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 14:04:01,336 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 14:04:01,336 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 14:04:01,336 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 14:04:01,336 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 14:04:01,337 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 14:04:01,337 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 14:04:01,337 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 14:04:01,337 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 14:04:01,337 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 14:04:01,338 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 14:04:01,338 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 14:04:01,338 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 14:04:01,338 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 14:04:01,338 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 14:04:01,338 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 14:04:01,340 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 14:04:01,340 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 14:04:01,340 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 14:04:01,340 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 14:04:01,341 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 14:04:01,341 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 14:04:01,341 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 14:04:01,341 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 14:04:01,341 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 14:04:01,341 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 14:04:01,341 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 14:04:01,341 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 14:04:01,341 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:04:01,342 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 14:04:01,342 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 14:04:01,342 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 14:04:01,342 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 14:04:01,342 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 14:04:01,342 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 14:04:01,342 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 14:04:01,342 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 14:04:01,342 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 14:04:01,343 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_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/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 -> 13e5ee77a02e52d8ba8ae9f3698472ae34be00d2574eddc823f2c8e804568236 [2024-11-13 14:04:01,685 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 14:04:01,697 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 14:04:01,701 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 14:04:01,702 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 14:04:01,703 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 14:04:01,705 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/loop-industry-pattern/nested-3.c Unable to find full path for "g++" [2024-11-13 14:04:03,719 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 14:04:04,012 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 14:04:04,013 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/sv-benchmarks/c/loop-industry-pattern/nested-3.c [2024-11-13 14:04:04,028 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/data/b1401b389/80ee969d17c947668b689ad2dd8436f5/FLAGef9e63629 [2024-11-13 14:04:04,318 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/data/b1401b389/80ee969d17c947668b689ad2dd8436f5 [2024-11-13 14:04:04,321 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 14:04:04,323 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 14:04:04,325 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 14:04:04,325 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 14:04:04,331 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 14:04:04,332 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:04:04" (1/1) ... [2024-11-13 14:04:04,333 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69bc26fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:04:04, skipping insertion in model container [2024-11-13 14:04:04,334 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:04:04" (1/1) ... [2024-11-13 14:04:04,350 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 14:04:04,539 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:04:04,555 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 14:04:04,580 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:04:04,600 INFO L204 MainTranslator]: Completed translation [2024-11-13 14:04:04,601 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:04:04 WrapperNode [2024-11-13 14:04:04,601 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 14:04:04,603 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 14:04:04,604 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 14:04:04,604 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 14:04:04,612 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:04:04" (1/1) ... [2024-11-13 14:04:04,621 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:04:04" (1/1) ... [2024-11-13 14:04:04,644 INFO L138 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 65 [2024-11-13 14:04:04,644 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 14:04:04,645 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 14:04:04,645 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 14:04:04,645 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 14:04:04,656 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:04:04" (1/1) ... [2024-11-13 14:04:04,656 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:04:04" (1/1) ... [2024-11-13 14:04:04,658 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:04:04" (1/1) ... [2024-11-13 14:04:04,682 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-13 14:04:04,684 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:04:04" (1/1) ... [2024-11-13 14:04:04,684 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:04:04" (1/1) ... [2024-11-13 14:04:04,689 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:04:04" (1/1) ... [2024-11-13 14:04:04,695 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:04:04" (1/1) ... [2024-11-13 14:04:04,699 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:04:04" (1/1) ... [2024-11-13 14:04:04,700 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:04:04" (1/1) ... [2024-11-13 14:04:04,701 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 14:04:04,706 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 14:04:04,707 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 14:04:04,707 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 14:04:04,708 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:04:04" (1/1) ... [2024-11-13 14:04:04,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:04:04,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:04:04,754 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 14:04:04,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 14:04:04,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 14:04:04,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 14:04:04,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 14:04:04,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 14:04:04,876 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 14:04:04,878 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 14:04:05,116 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-13 14:04:05,116 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 14:04:05,129 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 14:04:05,130 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-13 14:04:05,130 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:04:05 BoogieIcfgContainer [2024-11-13 14:04:05,130 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 14:04:05,134 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 14:04:05,134 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 14:04:05,140 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 14:04:05,140 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:04:04" (1/3) ... [2024-11-13 14:04:05,141 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ef715c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:04:05, skipping insertion in model container [2024-11-13 14:04:05,141 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:04:04" (2/3) ... [2024-11-13 14:04:05,141 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ef715c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:04:05, skipping insertion in model container [2024-11-13 14:04:05,142 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:04:05" (3/3) ... [2024-11-13 14:04:05,143 INFO L112 eAbstractionObserver]: Analyzing ICFG nested-3.c [2024-11-13 14:04:05,162 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 14:04:05,164 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG nested-3.c that has 1 procedures, 46 locations, 1 initial locations, 2 loop locations, and 14 error locations. [2024-11-13 14:04:05,231 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 14:04:05,247 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;@6139319b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 14:04:05,247 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-11-13 14:04:05,253 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 31 states have (on average 1.7419354838709677) internal successors, (54), 45 states have internal predecessors, (54), 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 14:04:05,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-13 14:04:05,260 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:04:05,261 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:04:05,262 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-13 14:04:05,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:04:05,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1809813369, now seen corresponding path program 1 times [2024-11-13 14:04:05,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:04:05,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444390975] [2024-11-13 14:04:05,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:04:05,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:04:05,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:05,468 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 14:04:05,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:04:05,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444390975] [2024-11-13 14:04:05,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444390975] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:04:05,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:04:05,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:04:05,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119232487] [2024-11-13 14:04:05,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:04:05,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:04:05,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:04:05,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:04:05,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:04:05,505 INFO L87 Difference]: Start difference. First operand has 46 states, 31 states have (on average 1.7419354838709677) internal successors, (54), 45 states have internal predecessors, (54), 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, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:04:05,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:04:05,573 INFO L93 Difference]: Finished difference Result 89 states and 109 transitions. [2024-11-13 14:04:05,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:04:05,577 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-13 14:04:05,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:04:05,587 INFO L225 Difference]: With dead ends: 89 [2024-11-13 14:04:05,588 INFO L226 Difference]: Without dead ends: 44 [2024-11-13 14:04:05,591 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 14:04:05,597 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 3 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:04:05,599 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 79 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:04:05,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-11-13 14:04:05,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2024-11-13 14:04:05,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 28 states have (on average 1.6785714285714286) internal successors, (47), 41 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 14:04:05,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 47 transitions. [2024-11-13 14:04:05,638 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 47 transitions. Word has length 7 [2024-11-13 14:04:05,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:04:05,639 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 47 transitions. [2024-11-13 14:04:05,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:04:05,639 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2024-11-13 14:04:05,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-13 14:04:05,640 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:04:05,640 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:04:05,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 14:04:05,641 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-13 14:04:05,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:04:05,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1809861067, now seen corresponding path program 1 times [2024-11-13 14:04:05,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:04:05,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876254605] [2024-11-13 14:04:05,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:04:05,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:04:05,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:05,738 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 14:04:05,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:04:05,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876254605] [2024-11-13 14:04:05,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876254605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:04:05,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:04:05,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:04:05,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460076506] [2024-11-13 14:04:05,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:04:05,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:04:05,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:04:05,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:04:05,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:04:05,742 INFO L87 Difference]: Start difference. First operand 42 states and 47 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:04:05,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:04:05,811 INFO L93 Difference]: Finished difference Result 48 states and 54 transitions. [2024-11-13 14:04:05,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:04:05,812 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-13 14:04:05,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:04:05,813 INFO L225 Difference]: With dead ends: 48 [2024-11-13 14:04:05,813 INFO L226 Difference]: Without dead ends: 46 [2024-11-13 14:04:05,813 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:04:05,816 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 2 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:04:05,817 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 111 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:04:05,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-11-13 14:04:05,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-11-13 14:04:05,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 32 states have (on average 1.625) internal successors, (52), 45 states have internal predecessors, (52), 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 14:04:05,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 52 transitions. [2024-11-13 14:04:05,826 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 52 transitions. Word has length 7 [2024-11-13 14:04:05,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:04:05,826 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 52 transitions. [2024-11-13 14:04:05,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:04:05,827 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 52 transitions. [2024-11-13 14:04:05,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-13 14:04:05,827 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:04:05,827 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:04:05,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 14:04:05,828 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-13 14:04:05,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:04:05,829 INFO L85 PathProgramCache]: Analyzing trace with hash -274569821, now seen corresponding path program 1 times [2024-11-13 14:04:05,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:04:05,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921755396] [2024-11-13 14:04:05,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:04:05,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:04:05,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:05,967 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:04:05,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:04:05,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921755396] [2024-11-13 14:04:05,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921755396] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:04:05,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1064022995] [2024-11-13 14:04:05,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:04:05,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:04:05,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:04:05,972 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:04:05,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 14:04:06,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:06,041 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 14:04:06,045 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:04:06,108 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 14:04:06,108 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:04:06,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1064022995] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:04:06,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:04:06,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-13 14:04:06,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525183475] [2024-11-13 14:04:06,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:04:06,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:04:06,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:04:06,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:04:06,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:04:06,110 INFO L87 Difference]: Start difference. First operand 46 states and 52 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:04:06,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:04:06,146 INFO L93 Difference]: Finished difference Result 46 states and 52 transitions. [2024-11-13 14:04:06,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:04:06,149 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-13 14:04:06,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:04:06,149 INFO L225 Difference]: With dead ends: 46 [2024-11-13 14:04:06,149 INFO L226 Difference]: Without dead ends: 45 [2024-11-13 14:04:06,150 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:04:06,151 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 34 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:04:06,153 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 38 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:04:06,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-11-13 14:04:06,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2024-11-13 14:04:06,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 32 states have (on average 1.59375) internal successors, (51), 44 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 14:04:06,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 51 transitions. [2024-11-13 14:04:06,163 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 51 transitions. Word has length 12 [2024-11-13 14:04:06,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:04:06,163 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 51 transitions. [2024-11-13 14:04:06,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:04:06,163 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2024-11-13 14:04:06,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-13 14:04:06,167 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:04:06,167 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-13 14:04:06,191 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 14:04:06,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:04:06,368 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-13 14:04:06,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:04:06,369 INFO L85 PathProgramCache]: Analyzing trace with hash -274522123, now seen corresponding path program 1 times [2024-11-13 14:04:06,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:04:06,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604608536] [2024-11-13 14:04:06,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:04:06,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:04:06,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:06,485 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 14:04:06,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:04:06,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604608536] [2024-11-13 14:04:06,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604608536] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:04:06,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [264362715] [2024-11-13 14:04:06,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:04:06,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:04:06,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:04:06,488 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:04:06,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 14:04:06,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:06,573 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 14:04:06,576 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:04:06,710 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:04:06,710 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:04:06,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [264362715] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:04:06,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:04:06,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2024-11-13 14:04:06,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477665916] [2024-11-13 14:04:06,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:04:06,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:04:06,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:04:06,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:04:06,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-13 14:04:06,713 INFO L87 Difference]: Start difference. First operand 45 states and 51 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:04:06,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:04:06,841 INFO L93 Difference]: Finished difference Result 122 states and 141 transitions. [2024-11-13 14:04:06,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:04:06,843 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-13 14:04:06,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:04:06,844 INFO L225 Difference]: With dead ends: 122 [2024-11-13 14:04:06,844 INFO L226 Difference]: Without dead ends: 79 [2024-11-13 14:04:06,845 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-13 14:04:06,846 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 31 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:04:06,846 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 113 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:04:06,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-11-13 14:04:06,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 67. [2024-11-13 14:04:06,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 54 states have (on average 1.6111111111111112) internal successors, (87), 66 states have internal predecessors, (87), 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 14:04:06,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 87 transitions. [2024-11-13 14:04:06,858 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 87 transitions. Word has length 12 [2024-11-13 14:04:06,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:04:06,858 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 87 transitions. [2024-11-13 14:04:06,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:04:06,858 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 87 transitions. [2024-11-13 14:04:06,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-13 14:04:06,861 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:04:06,861 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:04:06,882 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 14:04:07,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:04:07,065 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-13 14:04:07,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:04:07,066 INFO L85 PathProgramCache]: Analyzing trace with hash -274520201, now seen corresponding path program 1 times [2024-11-13 14:04:07,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:04:07,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247001502] [2024-11-13 14:04:07,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:04:07,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:04:07,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:07,224 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 14:04:07,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:04:07,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247001502] [2024-11-13 14:04:07,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247001502] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:04:07,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1541589321] [2024-11-13 14:04:07,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:04:07,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:04:07,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:04:07,227 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:04:07,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 14:04:07,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:07,283 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 14:04:07,284 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:04:07,339 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:04:07,339 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:04:07,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1541589321] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:04:07,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:04:07,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-13 14:04:07,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090533011] [2024-11-13 14:04:07,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:04:07,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:04:07,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:04:07,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:04:07,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-13 14:04:07,341 INFO L87 Difference]: Start difference. First operand 67 states and 87 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:04:07,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:04:07,433 INFO L93 Difference]: Finished difference Result 67 states and 87 transitions. [2024-11-13 14:04:07,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:04:07,435 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-13 14:04:07,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:04:07,436 INFO L225 Difference]: With dead ends: 67 [2024-11-13 14:04:07,436 INFO L226 Difference]: Without dead ends: 66 [2024-11-13 14:04:07,436 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-13 14:04:07,437 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 34 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:04:07,438 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 102 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:04:07,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2024-11-13 14:04:07,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2024-11-13 14:04:07,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 54 states have (on average 1.5740740740740742) internal successors, (85), 65 states have internal predecessors, (85), 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 14:04:07,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 85 transitions. [2024-11-13 14:04:07,452 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 85 transitions. Word has length 12 [2024-11-13 14:04:07,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:04:07,452 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 85 transitions. [2024-11-13 14:04:07,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:04:07,453 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 85 transitions. [2024-11-13 14:04:07,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-13 14:04:07,453 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:04:07,453 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:04:07,478 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 14:04:07,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:04:07,660 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-13 14:04:07,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:04:07,661 INFO L85 PathProgramCache]: Analyzing trace with hash 78270211, now seen corresponding path program 1 times [2024-11-13 14:04:07,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:04:07,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015926742] [2024-11-13 14:04:07,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:04:07,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:04:07,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:07,776 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:04:07,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:04:07,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015926742] [2024-11-13 14:04:07,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015926742] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:04:07,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [208654723] [2024-11-13 14:04:07,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:04:07,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:04:07,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:04:07,779 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:04:07,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 14:04:07,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:07,840 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 14:04:07,841 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:04:07,888 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:04:07,888 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:04:07,944 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:04:07,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [208654723] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:04:07,946 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:04:07,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3, 3] total 9 [2024-11-13 14:04:07,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516791518] [2024-11-13 14:04:07,946 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:04:07,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 14:04:07,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:04:07,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 14:04:07,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-13 14:04:07,950 INFO L87 Difference]: Start difference. First operand 66 states and 85 transitions. Second operand has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 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 14:04:08,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:04:08,206 INFO L93 Difference]: Finished difference Result 247 states and 319 transitions. [2024-11-13 14:04:08,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-13 14:04:08,207 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-13 14:04:08,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:04:08,209 INFO L225 Difference]: With dead ends: 247 [2024-11-13 14:04:08,209 INFO L226 Difference]: Without dead ends: 183 [2024-11-13 14:04:08,214 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2024-11-13 14:04:08,215 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 95 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:04:08,215 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 230 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:04:08,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-11-13 14:04:08,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 99. [2024-11-13 14:04:08,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 87 states have (on average 1.5402298850574712) internal successors, (134), 98 states have internal predecessors, (134), 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 14:04:08,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 134 transitions. [2024-11-13 14:04:08,228 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 134 transitions. Word has length 13 [2024-11-13 14:04:08,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:04:08,228 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 134 transitions. [2024-11-13 14:04:08,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 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 14:04:08,228 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 134 transitions. [2024-11-13 14:04:08,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-13 14:04:08,229 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:04:08,229 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:04:08,246 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-13 14:04:08,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-13 14:04:08,429 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-13 14:04:08,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:04:08,430 INFO L85 PathProgramCache]: Analyzing trace with hash 79808420, now seen corresponding path program 1 times [2024-11-13 14:04:08,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:04:08,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272279587] [2024-11-13 14:04:08,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:04:08,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:04:08,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:08,501 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 14:04:08,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:04:08,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272279587] [2024-11-13 14:04:08,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272279587] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:04:08,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:04:08,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:04:08,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133756051] [2024-11-13 14:04:08,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:04:08,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:04:08,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:04:08,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:04:08,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:04:08,503 INFO L87 Difference]: Start difference. First operand 99 states and 134 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:04:08,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:04:08,536 INFO L93 Difference]: Finished difference Result 99 states and 134 transitions. [2024-11-13 14:04:08,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:04:08,537 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-13 14:04:08,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:04:08,538 INFO L225 Difference]: With dead ends: 99 [2024-11-13 14:04:08,538 INFO L226 Difference]: Without dead ends: 98 [2024-11-13 14:04:08,538 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:04:08,541 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 1 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:04:08,541 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 104 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:04:08,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-13 14:04:08,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2024-11-13 14:04:08,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 87 states have (on average 1.5057471264367817) internal successors, (131), 97 states have internal predecessors, (131), 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 14:04:08,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 131 transitions. [2024-11-13 14:04:08,557 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 131 transitions. Word has length 13 [2024-11-13 14:04:08,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:04:08,558 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 131 transitions. [2024-11-13 14:04:08,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:04:08,558 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 131 transitions. [2024-11-13 14:04:08,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-13 14:04:08,558 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:04:08,559 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:04:08,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 14:04:08,559 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-13 14:04:08,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:04:08,559 INFO L85 PathProgramCache]: Analyzing trace with hash 2059621493, now seen corresponding path program 1 times [2024-11-13 14:04:08,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:04:08,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034411891] [2024-11-13 14:04:08,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:04:08,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:04:08,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:08,639 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 14:04:08,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:04:08,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034411891] [2024-11-13 14:04:08,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034411891] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:04:08,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:04:08,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 14:04:08,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742610794] [2024-11-13 14:04:08,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:04:08,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:04:08,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:04:08,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:04:08,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:04:08,641 INFO L87 Difference]: Start difference. First operand 98 states and 131 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:04:08,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:04:08,689 INFO L93 Difference]: Finished difference Result 170 states and 212 transitions. [2024-11-13 14:04:08,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:04:08,695 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 14:04:08,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:04:08,695 INFO L225 Difference]: With dead ends: 170 [2024-11-13 14:04:08,695 INFO L226 Difference]: Without dead ends: 106 [2024-11-13 14:04:08,696 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:04:08,696 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 22 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 153 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 14:04:08,697 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 153 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:04:08,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-13 14:04:08,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 98. [2024-11-13 14:04:08,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 87 states have (on average 1.4942528735632183) internal successors, (130), 97 states have internal predecessors, (130), 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 14:04:08,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 130 transitions. [2024-11-13 14:04:08,714 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 130 transitions. Word has length 18 [2024-11-13 14:04:08,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:04:08,714 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 130 transitions. [2024-11-13 14:04:08,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 14:04:08,714 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 130 transitions. [2024-11-13 14:04:08,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-13 14:04:08,715 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:04:08,715 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:04:08,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 14:04:08,715 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-13 14:04:08,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:04:08,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1048497901, now seen corresponding path program 1 times [2024-11-13 14:04:08,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:04:08,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320974588] [2024-11-13 14:04:08,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:04:08,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:04:08,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:08,801 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-13 14:04:08,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:04:08,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320974588] [2024-11-13 14:04:08,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320974588] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:04:08,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:04:08,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 14:04:08,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491277486] [2024-11-13 14:04:08,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:04:08,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:04:08,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:04:08,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:04:08,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:04:08,814 INFO L87 Difference]: Start difference. First operand 98 states and 130 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:04:08,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:04:08,854 INFO L93 Difference]: Finished difference Result 179 states and 229 transitions. [2024-11-13 14:04:08,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:04:08,856 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2024-11-13 14:04:08,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:04:08,857 INFO L225 Difference]: With dead ends: 179 [2024-11-13 14:04:08,857 INFO L226 Difference]: Without dead ends: 83 [2024-11-13 14:04:08,857 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:04:08,858 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 12 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:04:08,858 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 103 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:04:08,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-11-13 14:04:08,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 51. [2024-11-13 14:04:08,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 43 states have (on average 1.302325581395349) internal successors, (56), 50 states have internal predecessors, (56), 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 14:04:08,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 56 transitions. [2024-11-13 14:04:08,870 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 56 transitions. Word has length 18 [2024-11-13 14:04:08,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:04:08,870 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 56 transitions. [2024-11-13 14:04:08,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:04:08,871 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 56 transitions. [2024-11-13 14:04:08,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-13 14:04:08,871 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:04:08,871 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:04:08,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 14:04:08,874 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-13 14:04:08,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:04:08,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1048504243, now seen corresponding path program 1 times [2024-11-13 14:04:08,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:04:08,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23763245] [2024-11-13 14:04:08,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:04:08,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:04:08,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:08,921 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-13 14:04:08,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:04:08,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23763245] [2024-11-13 14:04:08,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23763245] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:04:08,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:04:08,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:04:08,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474994641] [2024-11-13 14:04:08,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:04:08,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:04:08,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:04:08,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:04:08,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:04:08,923 INFO L87 Difference]: Start difference. First operand 51 states and 56 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:04:08,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:04:08,963 INFO L93 Difference]: Finished difference Result 88 states and 98 transitions. [2024-11-13 14:04:08,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:04:08,963 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2024-11-13 14:04:08,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:04:08,964 INFO L225 Difference]: With dead ends: 88 [2024-11-13 14:04:08,964 INFO L226 Difference]: Without dead ends: 84 [2024-11-13 14:04:08,964 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 14:04:08,965 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 7 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:04:08,965 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 60 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:04:08,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-11-13 14:04:08,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2024-11-13 14:04:08,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 76 states have (on average 1.236842105263158) internal successors, (94), 83 states have internal predecessors, (94), 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 14:04:08,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 94 transitions. [2024-11-13 14:04:08,985 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 94 transitions. Word has length 18 [2024-11-13 14:04:08,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:04:08,986 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 94 transitions. [2024-11-13 14:04:08,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:04:08,986 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 94 transitions. [2024-11-13 14:04:08,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-13 14:04:08,986 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:04:08,986 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:04:08,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 14:04:08,987 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-13 14:04:08,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:04:08,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1704734155, now seen corresponding path program 1 times [2024-11-13 14:04:08,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:04:08,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068268821] [2024-11-13 14:04:08,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:04:08,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:04:09,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:09,041 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-13 14:04:09,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:04:09,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068268821] [2024-11-13 14:04:09,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068268821] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:04:09,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:04:09,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:04:09,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499147199] [2024-11-13 14:04:09,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:04:09,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:04:09,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:04:09,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:04:09,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:04:09,047 INFO L87 Difference]: Start difference. First operand 84 states and 94 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:04:09,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:04:09,084 INFO L93 Difference]: Finished difference Result 92 states and 102 transitions. [2024-11-13 14:04:09,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:04:09,084 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2024-11-13 14:04:09,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:04:09,086 INFO L225 Difference]: With dead ends: 92 [2024-11-13 14:04:09,086 INFO L226 Difference]: Without dead ends: 88 [2024-11-13 14:04:09,086 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 14:04:09,087 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 9 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:04:09,087 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 60 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:04:09,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-11-13 14:04:09,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2024-11-13 14:04:09,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 80 states have (on average 1.225) 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 14:04:09,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 98 transitions. [2024-11-13 14:04:09,106 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 98 transitions. Word has length 20 [2024-11-13 14:04:09,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:04:09,106 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 98 transitions. [2024-11-13 14:04:09,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:04:09,107 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 98 transitions. [2024-11-13 14:04:09,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-13 14:04:09,107 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:04:09,107 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:04:09,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 14:04:09,108 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-13 14:04:09,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:04:09,108 INFO L85 PathProgramCache]: Analyzing trace with hash -591898849, now seen corresponding path program 1 times [2024-11-13 14:04:09,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:04:09,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674838916] [2024-11-13 14:04:09,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:04:09,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:04:09,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:09,207 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-13 14:04:09,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:04:09,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674838916] [2024-11-13 14:04:09,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674838916] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:04:09,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1529683760] [2024-11-13 14:04:09,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:04:09,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:04:09,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:04:09,209 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:04:09,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 14:04:09,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:09,293 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 14:04:09,294 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:04:09,369 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 26 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-13 14:04:09,373 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:04:09,483 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 26 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-13 14:04:09,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1529683760] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:04:09,483 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:04:09,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2024-11-13 14:04:09,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145203160] [2024-11-13 14:04:09,483 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:04:09,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 14:04:09,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:04:09,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 14:04:09,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2024-11-13 14:04:09,486 INFO L87 Difference]: Start difference. First operand 88 states and 98 transitions. Second operand has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 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 14:04:09,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:04:09,906 INFO L93 Difference]: Finished difference Result 211 states and 247 transitions. [2024-11-13 14:04:09,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-13 14:04:09,906 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 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 41 [2024-11-13 14:04:09,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:04:09,907 INFO L225 Difference]: With dead ends: 211 [2024-11-13 14:04:09,907 INFO L226 Difference]: Without dead ends: 146 [2024-11-13 14:04:09,908 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=188, Invalid=804, Unknown=0, NotChecked=0, Total=992 [2024-11-13 14:04:09,909 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 47 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:04:09,909 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 218 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:04:09,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-11-13 14:04:09,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2024-11-13 14:04:09,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 140 states have (on average 1.1571428571428573) internal successors, (162), 145 states have internal predecessors, (162), 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 14:04:09,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 162 transitions. [2024-11-13 14:04:09,922 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 162 transitions. Word has length 41 [2024-11-13 14:04:09,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:04:09,923 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 162 transitions. [2024-11-13 14:04:09,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 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 14:04:09,923 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 162 transitions. [2024-11-13 14:04:09,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-13 14:04:09,925 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:04:09,925 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:04:09,946 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-13 14:04:10,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-13 14:04:10,126 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-13 14:04:10,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:04:10,126 INFO L85 PathProgramCache]: Analyzing trace with hash 844611139, now seen corresponding path program 1 times [2024-11-13 14:04:10,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:04:10,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603038133] [2024-11-13 14:04:10,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:04:10,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:04:10,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:10,277 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 142 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2024-11-13 14:04:10,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:04:10,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603038133] [2024-11-13 14:04:10,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603038133] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:04:10,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [106824780] [2024-11-13 14:04:10,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:04:10,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:04:10,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:04:10,282 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:04:10,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 14:04:10,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:10,373 INFO L255 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-13 14:04:10,375 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:04:10,564 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 137 proven. 55 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-13 14:04:10,564 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:04:10,863 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 137 proven. 55 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-13 14:04:10,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [106824780] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:04:10,863 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:04:10,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 13, 13] total 26 [2024-11-13 14:04:10,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443958077] [2024-11-13 14:04:10,864 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:04:10,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-13 14:04:10,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:04:10,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-13 14:04:10,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=489, Unknown=0, NotChecked=0, Total=650 [2024-11-13 14:04:10,865 INFO L87 Difference]: Start difference. First operand 146 states and 162 transitions. Second operand has 26 states, 26 states have (on average 4.076923076923077) internal successors, (106), 26 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 14:04:11,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:04:11,884 INFO L93 Difference]: Finished difference Result 486 states and 575 transitions. [2024-11-13 14:04:11,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2024-11-13 14:04:11,885 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.076923076923077) internal successors, (106), 26 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 72 [2024-11-13 14:04:11,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:04:11,888 INFO L225 Difference]: With dead ends: 486 [2024-11-13 14:04:11,888 INFO L226 Difference]: Without dead ends: 393 [2024-11-13 14:04:11,891 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1222 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=883, Invalid=3673, Unknown=0, NotChecked=0, Total=4556 [2024-11-13 14:04:11,893 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 120 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:04:11,894 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 185 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:04:11,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2024-11-13 14:04:11,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2024-11-13 14:04:11,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 387 states have (on average 1.124031007751938) internal successors, (435), 392 states have internal predecessors, (435), 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 14:04:11,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 435 transitions. [2024-11-13 14:04:11,929 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 435 transitions. Word has length 72 [2024-11-13 14:04:11,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:04:11,930 INFO L471 AbstractCegarLoop]: Abstraction has 393 states and 435 transitions. [2024-11-13 14:04:11,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.076923076923077) internal successors, (106), 26 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 14:04:11,930 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 435 transitions. [2024-11-13 14:04:11,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-13 14:04:11,939 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:04:11,939 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 22, 22, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:04:11,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-13 14:04:12,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-13 14:04:12,141 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-13 14:04:12,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:04:12,141 INFO L85 PathProgramCache]: Analyzing trace with hash -216130695, now seen corresponding path program 1 times [2024-11-13 14:04:12,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:04:12,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902813441] [2024-11-13 14:04:12,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:04:12,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:04:12,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:12,409 INFO L134 CoverageAnalysis]: Checked inductivity of 1207 backedges. 0 proven. 635 refuted. 0 times theorem prover too weak. 572 trivial. 0 not checked. [2024-11-13 14:04:12,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:04:12,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902813441] [2024-11-13 14:04:12,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902813441] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:04:12,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [611059037] [2024-11-13 14:04:12,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:04:12,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:04:12,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:04:12,412 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:04:12,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-13 14:04:12,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:12,527 INFO L255 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-13 14:04:12,530 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:04:13,052 INFO L134 CoverageAnalysis]: Checked inductivity of 1207 backedges. 629 proven. 286 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2024-11-13 14:04:13,052 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:04:13,923 INFO L134 CoverageAnalysis]: Checked inductivity of 1207 backedges. 629 proven. 286 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2024-11-13 14:04:13,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [611059037] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:04:13,923 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:04:13,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 25, 25] total 50 [2024-11-13 14:04:13,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926387242] [2024-11-13 14:04:13,924 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:04:13,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-11-13 14:04:13,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:04:13,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-11-13 14:04:13,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=604, Invalid=1846, Unknown=0, NotChecked=0, Total=2450 [2024-11-13 14:04:13,928 INFO L87 Difference]: Start difference. First operand 393 states and 435 transitions. Second operand has 50 states, 50 states have (on average 3.34) internal successors, (167), 50 states have internal predecessors, (167), 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 14:04:16,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:04:16,791 INFO L93 Difference]: Finished difference Result 1031 states and 1212 transitions. [2024-11-13 14:04:16,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2024-11-13 14:04:16,792 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 3.34) internal successors, (167), 50 states have internal predecessors, (167), 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 133 [2024-11-13 14:04:16,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:04:16,798 INFO L225 Difference]: With dead ends: 1031 [2024-11-13 14:04:16,798 INFO L226 Difference]: Without dead ends: 751 [2024-11-13 14:04:16,809 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5742 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=2924, Invalid=16536, Unknown=0, NotChecked=0, Total=19460 [2024-11-13 14:04:16,810 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 219 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:04:16,810 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 298 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 14:04:16,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2024-11-13 14:04:16,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 751. [2024-11-13 14:04:16,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 751 states, 747 states have (on average 1.109772423025435) internal successors, (829), 750 states have internal predecessors, (829), 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 14:04:16,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 829 transitions. [2024-11-13 14:04:16,884 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 829 transitions. Word has length 133 [2024-11-13 14:04:16,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:04:16,885 INFO L471 AbstractCegarLoop]: Abstraction has 751 states and 829 transitions. [2024-11-13 14:04:16,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 3.34) internal successors, (167), 50 states have internal predecessors, (167), 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 14:04:16,885 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 829 transitions. [2024-11-13 14:04:16,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2024-11-13 14:04:16,890 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:04:16,890 INFO L215 NwaCegarLoop]: trace histogram [46, 46, 46, 46, 45, 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 14:04:16,908 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-13 14:04:17,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-13 14:04:17,091 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-13 14:04:17,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:04:17,092 INFO L85 PathProgramCache]: Analyzing trace with hash 942147519, now seen corresponding path program 1 times [2024-11-13 14:04:17,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:04:17,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076914666] [2024-11-13 14:04:17,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:04:17,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:04:17,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:17,338 INFO L134 CoverageAnalysis]: Checked inductivity of 5272 backedges. 0 proven. 2696 refuted. 0 times theorem prover too weak. 2576 trivial. 0 not checked. [2024-11-13 14:04:17,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:04:17,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076914666] [2024-11-13 14:04:17,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076914666] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:04:17,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [13057008] [2024-11-13 14:04:17,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:04:17,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:04:17,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:04:17,342 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:04:17,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-13 14:04:17,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:17,488 INFO L255 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-13 14:04:17,493 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:04:18,714 INFO L134 CoverageAnalysis]: Checked inductivity of 5272 backedges. 2693 proven. 1288 refuted. 0 times theorem prover too weak. 1291 trivial. 0 not checked. [2024-11-13 14:04:18,715 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:04:21,195 INFO L134 CoverageAnalysis]: Checked inductivity of 5272 backedges. 2693 proven. 1288 refuted. 0 times theorem prover too weak. 1291 trivial. 0 not checked. [2024-11-13 14:04:21,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [13057008] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:04:21,196 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:04:21,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 49, 49] total 98 [2024-11-13 14:04:21,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371178987] [2024-11-13 14:04:21,196 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:04:21,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2024-11-13 14:04:21,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:04:21,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2024-11-13 14:04:21,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2357, Invalid=7149, Unknown=0, NotChecked=0, Total=9506 [2024-11-13 14:04:21,203 INFO L87 Difference]: Start difference. First operand 751 states and 829 transitions. Second operand has 98 states, 98 states have (on average 3.0) internal successors, (294), 98 states have internal predecessors, (294), 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 14:04:29,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:04:29,147 INFO L93 Difference]: Finished difference Result 2476 states and 2923 transitions. [2024-11-13 14:04:29,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 283 states. [2024-11-13 14:04:29,148 INFO L78 Accepts]: Start accepts. Automaton has has 98 states, 98 states have (on average 3.0) internal successors, (294), 98 states have internal predecessors, (294), 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 254 [2024-11-13 14:04:29,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:04:29,155 INFO L225 Difference]: With dead ends: 2476 [2024-11-13 14:04:29,155 INFO L226 Difference]: Without dead ends: 1958 [2024-11-13 14:04:29,165 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 695 GetRequests, 413 SyntacticMatches, 0 SemanticMatches, 282 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25072 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=13915, Invalid=66457, Unknown=0, NotChecked=0, Total=80372 [2024-11-13 14:04:29,166 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 420 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 420 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:04:29,167 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [420 Valid, 231 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 14:04:29,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1958 states. [2024-11-13 14:04:29,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1958 to 1471. [2024-11-13 14:04:29,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1471 states, 1467 states have (on average 1.1049761417859578) internal successors, (1621), 1470 states have internal predecessors, (1621), 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 14:04:29,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1471 states to 1471 states and 1621 transitions. [2024-11-13 14:04:29,251 INFO L78 Accepts]: Start accepts. Automaton has 1471 states and 1621 transitions. Word has length 254 [2024-11-13 14:04:29,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:04:29,251 INFO L471 AbstractCegarLoop]: Abstraction has 1471 states and 1621 transitions. [2024-11-13 14:04:29,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 98 states, 98 states have (on average 3.0) internal successors, (294), 98 states have internal predecessors, (294), 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 14:04:29,252 INFO L276 IsEmpty]: Start isEmpty. Operand 1471 states and 1621 transitions. [2024-11-13 14:04:29,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 495 [2024-11-13 14:04:29,261 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:04:29,261 INFO L215 NwaCegarLoop]: trace histogram [94, 94, 94, 94, 94, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:04:29,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-13 14:04:29,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-13 14:04:29,466 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-13 14:04:29,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:04:29,466 INFO L85 PathProgramCache]: Analyzing trace with hash 868019717, now seen corresponding path program 1 times [2024-11-13 14:04:29,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:04:29,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366356531] [2024-11-13 14:04:29,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:04:29,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:04:29,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:29,986 INFO L134 CoverageAnalysis]: Checked inductivity of 22052 backedges. 0 proven. 11148 refuted. 0 times theorem prover too weak. 10904 trivial. 0 not checked. [2024-11-13 14:04:29,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:04:29,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366356531] [2024-11-13 14:04:29,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366356531] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:04:29,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [897235829] [2024-11-13 14:04:29,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:04:29,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:04:29,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:04:29,990 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:04:29,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-13 14:04:30,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:04:30,240 INFO L255 TraceCheckSpWp]: Trace formula consists of 822 conjuncts, 96 conjuncts are in the unsatisfiable core [2024-11-13 14:04:30,248 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:04:34,008 INFO L134 CoverageAnalysis]: Checked inductivity of 22052 backedges. 11141 proven. 5452 refuted. 0 times theorem prover too weak. 5459 trivial. 0 not checked. [2024-11-13 14:04:34,009 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:04:42,039 INFO L134 CoverageAnalysis]: Checked inductivity of 22052 backedges. 11141 proven. 5452 refuted. 0 times theorem prover too weak. 5459 trivial. 0 not checked. [2024-11-13 14:04:42,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [897235829] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:04:42,039 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:04:42,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 97, 97] total 194 [2024-11-13 14:04:42,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502983358] [2024-11-13 14:04:42,040 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:04:42,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 194 states [2024-11-13 14:04:42,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:04:42,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 194 interpolants. [2024-11-13 14:04:42,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9317, Invalid=28125, Unknown=0, NotChecked=0, Total=37442 [2024-11-13 14:04:42,049 INFO L87 Difference]: Start difference. First operand 1471 states and 1621 transitions. Second operand has 194 states, 194 states have (on average 2.7216494845360826) internal successors, (528), 194 states have internal predecessors, (528), 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 14:05:13,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:05:13,320 INFO L93 Difference]: Finished difference Result 4880 states and 5759 transitions. [2024-11-13 14:05:13,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 571 states. [2024-11-13 14:05:13,321 INFO L78 Accepts]: Start accepts. Automaton has has 194 states, 194 states have (on average 2.7216494845360826) internal successors, (528), 194 states have internal predecessors, (528), 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 494 [2024-11-13 14:05:13,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:05:13,334 INFO L225 Difference]: With dead ends: 4880 [2024-11-13 14:05:13,334 INFO L226 Difference]: Without dead ends: 3882 [2024-11-13 14:05:13,350 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1367 GetRequests, 797 SyntacticMatches, 0 SemanticMatches, 570 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104248 ImplicationChecksByTransitivity, 38.8s TimeCoverageRelationStatistics Valid=55483, Invalid=271129, Unknown=0, NotChecked=0, Total=326612 [2024-11-13 14:05:13,351 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 1455 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1455 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 14:05:13,351 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1455 Valid, 273 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 14:05:13,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3882 states. [2024-11-13 14:05:13,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3882 to 3882. [2024-11-13 14:05:13,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3882 states, 3878 states have (on average 1.1021144920061887) internal successors, (4274), 3881 states have internal predecessors, (4274), 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 14:05:13,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3882 states to 3882 states and 4274 transitions. [2024-11-13 14:05:13,608 INFO L78 Accepts]: Start accepts. Automaton has 3882 states and 4274 transitions. Word has length 494 [2024-11-13 14:05:13,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:05:13,609 INFO L471 AbstractCegarLoop]: Abstraction has 3882 states and 4274 transitions. [2024-11-13 14:05:13,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 194 states, 194 states have (on average 2.7216494845360826) internal successors, (528), 194 states have internal predecessors, (528), 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 14:05:13,610 INFO L276 IsEmpty]: Start isEmpty. Operand 3882 states and 4274 transitions. [2024-11-13 14:05:13,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 977 [2024-11-13 14:05:13,645 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:05:13,645 INFO L215 NwaCegarLoop]: trace histogram [190, 190, 190, 190, 189, 2, 2, 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 14:05:13,667 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-13 14:05:13,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-13 14:05:13,850 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-13 14:05:13,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:05:13,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1224707457, now seen corresponding path program 1 times [2024-11-13 14:05:13,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:05:13,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856677097] [2024-11-13 14:05:13,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:05:13,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:05:13,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:15,061 INFO L134 CoverageAnalysis]: Checked inductivity of 90160 backedges. 0 proven. 45320 refuted. 0 times theorem prover too weak. 44840 trivial. 0 not checked. [2024-11-13 14:05:15,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:05:15,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856677097] [2024-11-13 14:05:15,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856677097] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:05:15,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [810804056] [2024-11-13 14:05:15,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:05:15,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:05:15,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:05:15,064 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:05:15,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-13 14:05:15,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:05:15,404 INFO L255 TraceCheckSpWp]: Trace formula consists of 1596 conjuncts, 192 conjuncts are in the unsatisfiable core [2024-11-13 14:05:15,416 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:05:27,660 INFO L134 CoverageAnalysis]: Checked inductivity of 90160 backedges. 45317 proven. 22420 refuted. 0 times theorem prover too weak. 22423 trivial. 0 not checked. [2024-11-13 14:05:27,660 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:05:58,637 INFO L134 CoverageAnalysis]: Checked inductivity of 90160 backedges. 45317 proven. 22420 refuted. 0 times theorem prover too weak. 22423 trivial. 0 not checked. [2024-11-13 14:05:58,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [810804056] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:05:58,638 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:05:58,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 193, 193] total 386 [2024-11-13 14:05:58,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197635529] [2024-11-13 14:05:58,638 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:05:58,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 386 states [2024-11-13 14:05:58,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:05:58,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 386 interpolants. [2024-11-13 14:05:58,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37061, Invalid=111549, Unknown=0, NotChecked=0, Total=148610 [2024-11-13 14:05:58,661 INFO L87 Difference]: Start difference. First operand 3882 states and 4274 transitions. Second operand has 386 states, 386 states have (on average 2.6373056994818653) internal successors, (1018), 386 states have internal predecessors, (1018), 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 14:08:40,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:08:40,855 INFO L93 Difference]: Finished difference Result 10655 states and 12496 transitions. [2024-11-13 14:08:40,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 1147 states. [2024-11-13 14:08:40,856 INFO L78 Accepts]: Start accepts. Automaton has has 386 states, 386 states have (on average 2.6373056994818653) internal successors, (1018), 386 states have internal predecessors, (1018), 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 976 [2024-11-13 14:08:40,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:08:40,883 INFO L225 Difference]: With dead ends: 10655 [2024-11-13 14:08:40,883 INFO L226 Difference]: Without dead ends: 7726 [2024-11-13 14:08:40,930 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2715 GetRequests, 1569 SyntacticMatches, 0 SemanticMatches, 1146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 425032 ImplicationChecksByTransitivity, 161.7s TimeCoverageRelationStatistics Valid=221563, Invalid=1095193, Unknown=0, NotChecked=0, Total=1316756 [2024-11-13 14:08:40,931 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 2495 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 1288 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2495 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 1293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:08:40,931 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2495 Valid, 282 Invalid, 1293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1288 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-13 14:08:40,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7726 states. [2024-11-13 14:08:41,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7726 to 5795. [2024-11-13 14:08:41,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5795 states, 5791 states have (on average 1.1011915040580211) internal successors, (6377), 5794 states have internal predecessors, (6377), 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 14:08:41,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5795 states to 5795 states and 6377 transitions. [2024-11-13 14:08:41,375 INFO L78 Accepts]: Start accepts. Automaton has 5795 states and 6377 transitions. Word has length 976 [2024-11-13 14:08:41,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:08:41,376 INFO L471 AbstractCegarLoop]: Abstraction has 5795 states and 6377 transitions. [2024-11-13 14:08:41,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 386 states, 386 states have (on average 2.6373056994818653) internal successors, (1018), 386 states have internal predecessors, (1018), 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 14:08:41,377 INFO L276 IsEmpty]: Start isEmpty. Operand 5795 states and 6377 transitions. [2024-11-13 14:08:41,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2901 [2024-11-13 14:08:41,512 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:08:41,513 INFO L215 NwaCegarLoop]: trace histogram [573, 573, 573, 573, 573, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2024-11-13 14:08:41,536 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-13 14:08:41,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-13 14:08:41,713 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-13 14:08:41,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:08:41,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1105328745, now seen corresponding path program 2 times [2024-11-13 14:08:41,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:08:41,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078527616] [2024-11-13 14:08:41,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:08:41,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:08:41,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:08:45,590 INFO L134 CoverageAnalysis]: Checked inductivity of 821136 backedges. 0 proven. 548388 refuted. 0 times theorem prover too weak. 272748 trivial. 0 not checked. [2024-11-13 14:08:45,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:08:45,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078527616] [2024-11-13 14:08:45,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078527616] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:08:45,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1174511315] [2024-11-13 14:08:45,591 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 14:08:45,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:08:45,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:08:45,594 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:08:45,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfcf979e-ee0d-4759-b4b1-6313fb4a94a0/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-13 14:08:46,567 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 14:08:46,567 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:08:46,596 INFO L255 TraceCheckSpWp]: Trace formula consists of 4673 conjuncts, 384 conjuncts are in the unsatisfiable core [2024-11-13 14:08:46,637 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:09:32,710 INFO L134 CoverageAnalysis]: Checked inductivity of 821136 backedges. 365578 proven. 90916 refuted. 0 times theorem prover too weak. 364642 trivial. 0 not checked. [2024-11-13 14:09:32,710 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:11:52,069 INFO L134 CoverageAnalysis]: Checked inductivity of 821136 backedges. 365578 proven. 90916 refuted. 0 times theorem prover too weak. 364642 trivial. 0 not checked. [2024-11-13 14:11:52,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1174511315] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:11:52,070 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:11:52,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 385, 385] total 771 [2024-11-13 14:11:52,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628294504] [2024-11-13 14:11:52,071 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:11:52,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 771 states [2024-11-13 14:11:52,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:11:52,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 771 interpolants. [2024-11-13 14:11:52,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147849, Invalid=445821, Unknown=0, NotChecked=0, Total=593670 [2024-11-13 14:11:52,143 INFO L87 Difference]: Start difference. First operand 5795 states and 6377 transitions. Second operand has 771 states, 771 states have (on average 2.5732814526588847) internal successors, (1984), 771 states have internal predecessors, (1984), 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)