./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound10.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_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4615816b63186e8ef25ffa56a09fb574b90534edb7a787dbb36e36eb2c34dee2 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:50:00,865 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:50:00,939 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-13 23:50:00,945 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 23:50:00,946 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 23:50:00,973 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:50:00,974 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 23:50:00,974 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 23:50:00,975 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:50:00,975 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 23:50:00,975 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-13 23:50:00,975 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-13 23:50:00,975 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-13 23:50:00,975 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-13 23:50:00,976 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-13 23:50:00,976 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-13 23:50:00,976 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-13 23:50:00,976 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-13 23:50:00,976 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-13 23:50:00,977 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-13 23:50:00,977 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-13 23:50:00,977 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-13 23:50:00,977 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:50:00,978 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 23:50:00,978 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 23:50:00,978 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 23:50:00,978 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 23:50:00,978 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:50:00,979 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 23:50:00,979 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:50:00,979 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 23:50:00,979 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:50:00,979 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 23:50:00,979 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 23:50:00,980 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 23:50:00,980 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 23:50:00,980 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:50:00,980 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:50:00,980 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 23:50:00,981 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 23:50:00,981 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:50:00,981 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:50:00,981 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:50:00,981 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 23:50:00,982 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-13 23:50:00,982 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 23:50:00,982 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 23:50:00,982 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-13 23:50:00,982 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 23:50:00,982 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E 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 -> Taipan 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 -> 4615816b63186e8ef25ffa56a09fb574b90534edb7a787dbb36e36eb2c34dee2 [2024-11-13 23:50:01,387 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:50:01,399 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:50:01,404 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:50:01,405 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:50:01,406 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:50:01,408 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound10.c Unable to find full path for "g++" [2024-11-13 23:50:03,612 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:50:03,877 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:50:03,880 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound10.c [2024-11-13 23:50:03,890 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/data/052b44c3e/32df4f234bbb41a280824b60649c6397/FLAG6f937dc4f [2024-11-13 23:50:03,911 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/data/052b44c3e/32df4f234bbb41a280824b60649c6397 [2024-11-13 23:50:03,913 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:50:03,915 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:50:03,917 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:50:03,917 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:50:03,922 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:50:03,922 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:50:03" (1/1) ... [2024-11-13 23:50:03,923 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24aec10b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:50:03, skipping insertion in model container [2024-11-13 23:50:03,923 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:50:03" (1/1) ... [2024-11-13 23:50:03,941 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:50:04,129 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:50:04,140 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 23:50:04,173 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:50:04,190 INFO L204 MainTranslator]: Completed translation [2024-11-13 23:50:04,191 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:50:04 WrapperNode [2024-11-13 23:50:04,191 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:50:04,192 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 23:50:04,193 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 23:50:04,193 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 23:50:04,204 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:50:04" (1/1) ... [2024-11-13 23:50:04,210 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:50:04" (1/1) ... [2024-11-13 23:50:04,240 INFO L138 Inliner]: procedures = 14, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 99 [2024-11-13 23:50:04,244 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 23:50:04,245 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 23:50:04,245 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 23:50:04,245 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 23:50:04,255 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:50:04" (1/1) ... [2024-11-13 23:50:04,255 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:50:04" (1/1) ... [2024-11-13 23:50:04,260 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:50:04" (1/1) ... [2024-11-13 23:50:04,260 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:50:04" (1/1) ... [2024-11-13 23:50:04,263 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:50:04" (1/1) ... [2024-11-13 23:50:04,270 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:50:04" (1/1) ... [2024-11-13 23:50:04,276 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:50:04" (1/1) ... [2024-11-13 23:50:04,276 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:50:04" (1/1) ... [2024-11-13 23:50:04,278 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 23:50:04,282 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 23:50:04,283 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 23:50:04,283 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 23:50:04,284 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:50:04" (1/1) ... [2024-11-13 23:50:04,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:50:04,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:50:04,325 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-13 23:50:04,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-13 23:50:04,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 23:50:04,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 23:50:04,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 23:50:04,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 23:50:04,368 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-13 23:50:04,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-13 23:50:04,455 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 23:50:04,458 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 23:50:05,001 INFO L? ?]: Removed 67 outVars from TransFormulas that were not future-live. [2024-11-13 23:50:05,002 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 23:50:05,044 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 23:50:05,044 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 23:50:05,044 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:50:05 BoogieIcfgContainer [2024-11-13 23:50:05,045 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 23:50:05,048 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 23:50:05,048 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 23:50:05,054 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 23:50:05,055 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 11:50:03" (1/3) ... [2024-11-13 23:50:05,056 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bf77f3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:50:05, skipping insertion in model container [2024-11-13 23:50:05,056 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:50:04" (2/3) ... [2024-11-13 23:50:05,056 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bf77f3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:50:05, skipping insertion in model container [2024-11-13 23:50:05,056 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:50:05" (3/3) ... [2024-11-13 23:50:05,058 INFO L112 eAbstractionObserver]: Analyzing ICFG sqrt1-ll_unwindbound10.c [2024-11-13 23:50:05,077 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 23:50:05,079 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG sqrt1-ll_unwindbound10.c that has 2 procedures, 118 locations, 1 initial locations, 1 loop locations, and 52 error locations. [2024-11-13 23:50:05,163 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 23:50:05,186 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=FINITE_AUTOMATA, 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;@7bd8a284, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 23:50:05,187 INFO L334 AbstractCegarLoop]: Starting to check reachability of 52 error locations. [2024-11-13 23:50:05,194 INFO L276 IsEmpty]: Start isEmpty. Operand has 118 states, 58 states have (on average 1.9482758620689655) internal successors, (113), 110 states have internal predecessors, (113), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-13 23:50:05,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-13 23:50:05,202 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:50:05,202 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-13 23:50:05,203 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2024-11-13 23:50:05,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:50:05,211 INFO L85 PathProgramCache]: Analyzing trace with hash 186145, now seen corresponding path program 1 times [2024-11-13 23:50:05,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:50:05,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442686477] [2024-11-13 23:50:05,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:50:05,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:50:05,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:50:05,352 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 23:50:05,353 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:50:05,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442686477] [2024-11-13 23:50:05,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442686477] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:50:05,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:50:05,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 23:50:05,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126703804] [2024-11-13 23:50:05,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:50:05,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 23:50:05,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:50:05,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 23:50:05,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 23:50:05,385 INFO L87 Difference]: Start difference. First operand has 118 states, 58 states have (on average 1.9482758620689655) internal successors, (113), 110 states have internal predecessors, (113), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:50:05,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:50:05,437 INFO L93 Difference]: Finished difference Result 167 states and 177 transitions. [2024-11-13 23:50:05,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 23:50:05,441 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-13 23:50:05,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:50:05,451 INFO L225 Difference]: With dead ends: 167 [2024-11-13 23:50:05,452 INFO L226 Difference]: Without dead ends: 111 [2024-11-13 23:50:05,457 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 23:50:05,462 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 23:50:05,463 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 117 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 23:50:05,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-13 23:50:05,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2024-11-13 23:50:05,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 57 states have (on average 1.8596491228070176) internal successors, (106), 104 states have internal predecessors, (106), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-13 23:50:05,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 116 transitions. [2024-11-13 23:50:05,544 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 116 transitions. Word has length 3 [2024-11-13 23:50:05,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:50:05,544 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 116 transitions. [2024-11-13 23:50:05,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:50:05,546 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 116 transitions. [2024-11-13 23:50:05,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-13 23:50:05,547 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:50:05,547 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-13 23:50:05,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 23:50:05,547 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2024-11-13 23:50:05,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:50:05,548 INFO L85 PathProgramCache]: Analyzing trace with hash 183744, now seen corresponding path program 1 times [2024-11-13 23:50:05,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:50:05,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412226887] [2024-11-13 23:50:05,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:50:05,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:50:05,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:50:05,719 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 23:50:05,720 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:50:05,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412226887] [2024-11-13 23:50:05,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412226887] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:50:05,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:50:05,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 23:50:05,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127194936] [2024-11-13 23:50:05,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:50:05,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 23:50:05,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:50:05,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 23:50:05,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:50:05,755 INFO L87 Difference]: Start difference. First operand 111 states and 116 transitions. Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:50:05,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:50:05,854 INFO L93 Difference]: Finished difference Result 163 states and 169 transitions. [2024-11-13 23:50:05,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 23:50:05,855 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-13 23:50:05,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:50:05,857 INFO L225 Difference]: With dead ends: 163 [2024-11-13 23:50:05,857 INFO L226 Difference]: Without dead ends: 115 [2024-11-13 23:50:05,857 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 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 23:50:05,858 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 4 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 23:50:05,859 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 328 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 23:50:05,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-13 23:50:05,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2024-11-13 23:50:05,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 61 states have (on average 1.8032786885245902) internal successors, (110), 108 states have internal predecessors, (110), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-13 23:50:05,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 120 transitions. [2024-11-13 23:50:05,870 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 120 transitions. Word has length 3 [2024-11-13 23:50:05,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:50:05,871 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 120 transitions. [2024-11-13 23:50:05,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:50:05,871 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 120 transitions. [2024-11-13 23:50:05,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-13 23:50:05,871 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:50:05,872 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-13 23:50:05,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 23:50:05,872 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2024-11-13 23:50:05,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:50:05,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1178990090, now seen corresponding path program 1 times [2024-11-13 23:50:05,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:50:05,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457107185] [2024-11-13 23:50:05,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:50:05,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:50:05,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:50:05,954 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 23:50:05,954 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:50:05,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457107185] [2024-11-13 23:50:05,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457107185] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:50:05,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:50:05,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-13 23:50:05,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733197933] [2024-11-13 23:50:05,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:50:05,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 23:50:05,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:50:05,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 23:50:05,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:50:05,956 INFO L87 Difference]: Start difference. First operand 115 states and 120 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:50:06,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:50:06,221 INFO L93 Difference]: Finished difference Result 209 states and 219 transitions. [2024-11-13 23:50:06,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 23:50:06,222 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-13 23:50:06,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:50:06,225 INFO L225 Difference]: With dead ends: 209 [2024-11-13 23:50:06,229 INFO L226 Difference]: Without dead ends: 189 [2024-11-13 23:50:06,229 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 23:50:06,230 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 68 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 23:50:06,231 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 164 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 23:50:06,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-11-13 23:50:06,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 154. [2024-11-13 23:50:06,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 96 states have (on average 1.6354166666666667) internal successors, (157), 143 states have internal predecessors, (157), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-13 23:50:06,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 175 transitions. [2024-11-13 23:50:06,255 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 175 transitions. Word has length 6 [2024-11-13 23:50:06,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:50:06,255 INFO L471 AbstractCegarLoop]: Abstraction has 154 states and 175 transitions. [2024-11-13 23:50:06,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:50:06,256 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 175 transitions. [2024-11-13 23:50:06,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-13 23:50:06,256 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:50:06,257 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:50:06,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 23:50:06,257 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2024-11-13 23:50:06,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:50:06,258 INFO L85 PathProgramCache]: Analyzing trace with hash 336012265, now seen corresponding path program 1 times [2024-11-13 23:50:06,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:50:06,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849076328] [2024-11-13 23:50:06,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:50:06,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:50:06,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 23:50:06,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [365656513] [2024-11-13 23:50:06,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:50:06,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:50:06,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:50:06,295 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:50:06,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 23:50:06,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:50:06,363 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 23:50:06,367 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:50:06,430 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 23:50:06,430 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:50:06,431 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:50:06,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849076328] [2024-11-13 23:50:06,432 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 23:50:06,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [365656513] [2024-11-13 23:50:06,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [365656513] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:50:06,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:50:06,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 23:50:06,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499578704] [2024-11-13 23:50:06,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:50:06,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 23:50:06,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:50:06,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 23:50:06,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:50:06,435 INFO L87 Difference]: Start difference. First operand 154 states and 175 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 23:50:06,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:50:06,607 INFO L93 Difference]: Finished difference Result 181 states and 203 transitions. [2024-11-13 23:50:06,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 23:50:06,608 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2024-11-13 23:50:06,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:50:06,610 INFO L225 Difference]: With dead ends: 181 [2024-11-13 23:50:06,610 INFO L226 Difference]: Without dead ends: 173 [2024-11-13 23:50:06,610 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 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 23:50:06,611 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 41 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 23:50:06,612 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 170 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 23:50:06,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-11-13 23:50:06,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 165. [2024-11-13 23:50:06,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 106 states have (on average 1.5849056603773586) internal successors, (168), 153 states have internal predecessors, (168), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-13 23:50:06,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 188 transitions. [2024-11-13 23:50:06,629 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 188 transitions. Word has length 23 [2024-11-13 23:50:06,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:50:06,629 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 188 transitions. [2024-11-13 23:50:06,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 23:50:06,630 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 188 transitions. [2024-11-13 23:50:06,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-13 23:50:06,631 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:50:06,631 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:50:06,654 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 23:50:06,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:50:06,835 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2024-11-13 23:50:06,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:50:06,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1826445696, now seen corresponding path program 1 times [2024-11-13 23:50:06,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:50:06,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441389704] [2024-11-13 23:50:06,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:50:06,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:50:06,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:50:06,942 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 23:50:06,943 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:50:06,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441389704] [2024-11-13 23:50:06,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441389704] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:50:06,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:50:06,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 23:50:06,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847152153] [2024-11-13 23:50:06,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:50:06,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 23:50:06,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:50:06,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 23:50:06,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:50:06,945 INFO L87 Difference]: Start difference. First operand 165 states and 188 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 23:50:07,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:50:07,119 INFO L93 Difference]: Finished difference Result 181 states and 199 transitions. [2024-11-13 23:50:07,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 23:50:07,119 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2024-11-13 23:50:07,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:50:07,121 INFO L225 Difference]: With dead ends: 181 [2024-11-13 23:50:07,121 INFO L226 Difference]: Without dead ends: 171 [2024-11-13 23:50:07,122 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 23:50:07,123 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 38 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 23:50:07,123 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 179 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 23:50:07,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2024-11-13 23:50:07,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 168. [2024-11-13 23:50:07,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 109 states have (on average 1.5045871559633028) internal successors, (164), 156 states have internal predecessors, (164), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-13 23:50:07,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 184 transitions. [2024-11-13 23:50:07,138 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 184 transitions. Word has length 24 [2024-11-13 23:50:07,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:50:07,138 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 184 transitions. [2024-11-13 23:50:07,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 23:50:07,138 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 184 transitions. [2024-11-13 23:50:07,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-13 23:50:07,139 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:50:07,139 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:50:07,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 23:50:07,140 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2024-11-13 23:50:07,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:50:07,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1296868947, now seen corresponding path program 1 times [2024-11-13 23:50:07,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:50:07,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925935460] [2024-11-13 23:50:07,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:50:07,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:50:07,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:50:07,323 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 23:50:07,324 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:50:07,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925935460] [2024-11-13 23:50:07,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925935460] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:50:07,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:50:07,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 23:50:07,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014844041] [2024-11-13 23:50:07,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:50:07,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 23:50:07,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:50:07,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 23:50:07,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:50:07,329 INFO L87 Difference]: Start difference. First operand 168 states and 184 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 23:50:07,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:50:07,604 INFO L93 Difference]: Finished difference Result 173 states and 189 transitions. [2024-11-13 23:50:07,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 23:50:07,606 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 27 [2024-11-13 23:50:07,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:50:07,655 INFO L225 Difference]: With dead ends: 173 [2024-11-13 23:50:07,655 INFO L226 Difference]: Without dead ends: 171 [2024-11-13 23:50:07,656 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:50:07,657 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 50 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 23:50:07,657 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 215 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 23:50:07,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2024-11-13 23:50:07,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 168. [2024-11-13 23:50:07,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 109 states have (on average 1.4862385321100917) internal successors, (162), 156 states have internal predecessors, (162), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-13 23:50:07,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 182 transitions. [2024-11-13 23:50:07,686 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 182 transitions. Word has length 27 [2024-11-13 23:50:07,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:50:07,687 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 182 transitions. [2024-11-13 23:50:07,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 23:50:07,691 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 182 transitions. [2024-11-13 23:50:07,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-13 23:50:07,692 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:50:07,692 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:50:07,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 23:50:07,692 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2024-11-13 23:50:07,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:50:07,693 INFO L85 PathProgramCache]: Analyzing trace with hash 285921137, now seen corresponding path program 1 times [2024-11-13 23:50:07,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:50:07,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8577987] [2024-11-13 23:50:07,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:50:07,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:50:07,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:50:07,931 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 23:50:07,931 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:50:07,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8577987] [2024-11-13 23:50:07,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8577987] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:50:07,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:50:07,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 23:50:07,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955472815] [2024-11-13 23:50:07,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:50:07,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 23:50:07,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:50:07,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 23:50:07,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:50:07,935 INFO L87 Difference]: Start difference. First operand 168 states and 182 transitions. Second operand has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 23:50:08,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:50:08,122 INFO L93 Difference]: Finished difference Result 173 states and 183 transitions. [2024-11-13 23:50:08,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 23:50:08,124 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 31 [2024-11-13 23:50:08,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:50:08,125 INFO L225 Difference]: With dead ends: 173 [2024-11-13 23:50:08,125 INFO L226 Difference]: Without dead ends: 145 [2024-11-13 23:50:08,126 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 23:50:08,129 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 29 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 23:50:08,129 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 146 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 23:50:08,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2024-11-13 23:50:08,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2024-11-13 23:50:08,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 88 states have (on average 1.5568181818181819) internal successors, (137), 135 states have internal predecessors, (137), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-13 23:50:08,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 153 transitions. [2024-11-13 23:50:08,141 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 153 transitions. Word has length 31 [2024-11-13 23:50:08,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:50:08,141 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 153 transitions. [2024-11-13 23:50:08,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 23:50:08,141 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 153 transitions. [2024-11-13 23:50:08,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-13 23:50:08,142 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:50:08,143 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:50:08,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 23:50:08,143 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2024-11-13 23:50:08,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:50:08,144 INFO L85 PathProgramCache]: Analyzing trace with hash -620171527, now seen corresponding path program 1 times [2024-11-13 23:50:08,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:50:08,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121107627] [2024-11-13 23:50:08,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:50:08,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:50:08,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:50:08,300 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 23:50:08,300 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:50:08,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121107627] [2024-11-13 23:50:08,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121107627] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:50:08,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:50:08,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 23:50:08,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395279853] [2024-11-13 23:50:08,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:50:08,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 23:50:08,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:50:08,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 23:50:08,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:50:08,302 INFO L87 Difference]: Start difference. First operand 145 states and 153 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-13 23:50:08,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:50:08,507 INFO L93 Difference]: Finished difference Result 148 states and 157 transitions. [2024-11-13 23:50:08,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 23:50:08,508 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 42 [2024-11-13 23:50:08,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:50:08,509 INFO L225 Difference]: With dead ends: 148 [2024-11-13 23:50:08,510 INFO L226 Difference]: Without dead ends: 147 [2024-11-13 23:50:08,510 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 23:50:08,511 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 1 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 23:50:08,511 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 211 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 23:50:08,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-13 23:50:08,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 146. [2024-11-13 23:50:08,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 89 states have (on average 1.550561797752809) internal successors, (138), 136 states have internal predecessors, (138), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-13 23:50:08,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 154 transitions. [2024-11-13 23:50:08,524 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 154 transitions. Word has length 42 [2024-11-13 23:50:08,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:50:08,524 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 154 transitions. [2024-11-13 23:50:08,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-13 23:50:08,525 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 154 transitions. [2024-11-13 23:50:08,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-13 23:50:08,526 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:50:08,526 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:50:08,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 23:50:08,526 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2024-11-13 23:50:08,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:50:08,527 INFO L85 PathProgramCache]: Analyzing trace with hash -2045448044, now seen corresponding path program 1 times [2024-11-13 23:50:08,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:50:08,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655923495] [2024-11-13 23:50:08,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:50:08,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:50:08,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:50:08,753 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 23:50:08,755 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:50:08,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655923495] [2024-11-13 23:50:08,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655923495] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:50:08,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:50:08,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 23:50:08,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131970477] [2024-11-13 23:50:08,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:50:08,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 23:50:08,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:50:08,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 23:50:08,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:50:08,757 INFO L87 Difference]: Start difference. First operand 146 states and 154 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-13 23:50:08,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:50:08,922 INFO L93 Difference]: Finished difference Result 148 states and 156 transitions. [2024-11-13 23:50:08,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 23:50:08,923 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 43 [2024-11-13 23:50:08,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:50:08,924 INFO L225 Difference]: With dead ends: 148 [2024-11-13 23:50:08,924 INFO L226 Difference]: Without dead ends: 147 [2024-11-13 23:50:08,924 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:50:08,925 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 0 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:50:08,925 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 156 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:50:08,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-13 23:50:08,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2024-11-13 23:50:08,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 90 states have (on average 1.5444444444444445) internal successors, (139), 137 states have internal predecessors, (139), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-13 23:50:08,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 155 transitions. [2024-11-13 23:50:08,945 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 155 transitions. Word has length 43 [2024-11-13 23:50:08,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:50:08,946 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 155 transitions. [2024-11-13 23:50:08,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-13 23:50:08,946 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 155 transitions. [2024-11-13 23:50:08,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-13 23:50:08,947 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:50:08,947 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:50:08,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 23:50:08,948 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2024-11-13 23:50:08,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:50:08,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1419452438, now seen corresponding path program 1 times [2024-11-13 23:50:08,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:50:08,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156035441] [2024-11-13 23:50:08,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:50:08,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:50:08,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:50:09,110 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 23:50:09,111 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:50:09,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156035441] [2024-11-13 23:50:09,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156035441] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:50:09,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1745145087] [2024-11-13 23:50:09,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:50:09,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:50:09,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:50:09,114 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:50:09,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 23:50:09,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:50:09,198 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 23:50:09,200 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:50:09,451 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 23:50:09,452 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:50:09,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1745145087] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:50:09,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 23:50:09,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-13 23:50:09,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447711456] [2024-11-13 23:50:09,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:50:09,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 23:50:09,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:50:09,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 23:50:09,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-13 23:50:09,454 INFO L87 Difference]: Start difference. First operand 147 states and 155 transitions. Second operand has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-13 23:50:09,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:50:09,499 INFO L93 Difference]: Finished difference Result 147 states and 155 transitions. [2024-11-13 23:50:09,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 23:50:09,500 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 45 [2024-11-13 23:50:09,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:50:09,501 INFO L225 Difference]: With dead ends: 147 [2024-11-13 23:50:09,501 INFO L226 Difference]: Without dead ends: 146 [2024-11-13 23:50:09,502 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-13 23:50:09,502 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 79 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 23:50:09,503 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 214 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 23:50:09,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-11-13 23:50:09,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2024-11-13 23:50:09,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 90 states have (on average 1.5333333333333334) internal successors, (138), 136 states have internal predecessors, (138), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-13 23:50:09,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 154 transitions. [2024-11-13 23:50:09,516 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 154 transitions. Word has length 45 [2024-11-13 23:50:09,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:50:09,517 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 154 transitions. [2024-11-13 23:50:09,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-13 23:50:09,517 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 154 transitions. [2024-11-13 23:50:09,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-13 23:50:09,518 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:50:09,518 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:50:09,545 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 23:50:09,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-13 23:50:09,719 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2024-11-13 23:50:09,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:50:09,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1053352658, now seen corresponding path program 1 times [2024-11-13 23:50:09,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:50:09,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401462051] [2024-11-13 23:50:09,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:50:09,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:50:09,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:50:09,951 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 23:50:09,951 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:50:09,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401462051] [2024-11-13 23:50:09,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401462051] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:50:09,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [144298731] [2024-11-13 23:50:09,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:50:09,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:50:09,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:50:09,954 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:50:09,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 23:50:10,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:50:10,023 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 23:50:10,025 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:50:10,155 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 23:50:10,155 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:50:10,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [144298731] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:50:10,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 23:50:10,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-13 23:50:10,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766772713] [2024-11-13 23:50:10,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:50:10,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 23:50:10,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:50:10,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 23:50:10,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-13 23:50:10,158 INFO L87 Difference]: Start difference. First operand 146 states and 154 transitions. Second operand has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-13 23:50:10,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:50:10,260 INFO L93 Difference]: Finished difference Result 192 states and 200 transitions. [2024-11-13 23:50:10,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 23:50:10,260 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 46 [2024-11-13 23:50:10,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:50:10,262 INFO L225 Difference]: With dead ends: 192 [2024-11-13 23:50:10,262 INFO L226 Difference]: Without dead ends: 191 [2024-11-13 23:50:10,262 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-13 23:50:10,263 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 76 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:50:10,263 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 491 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:50:10,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-11-13 23:50:10,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 159. [2024-11-13 23:50:10,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 101 states have (on average 1.5544554455445545) internal successors, (157), 147 states have internal predecessors, (157), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-13 23:50:10,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 177 transitions. [2024-11-13 23:50:10,276 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 177 transitions. Word has length 46 [2024-11-13 23:50:10,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:50:10,276 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 177 transitions. [2024-11-13 23:50:10,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-13 23:50:10,277 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 177 transitions. [2024-11-13 23:50:10,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-13 23:50:10,278 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:50:10,278 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:50:10,302 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 23:50:10,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:50:10,482 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2024-11-13 23:50:10,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:50:10,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1340376071, now seen corresponding path program 1 times [2024-11-13 23:50:10,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:50:10,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65018630] [2024-11-13 23:50:10,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:50:10,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:50:10,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:50:10,611 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 23:50:10,611 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:50:10,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65018630] [2024-11-13 23:50:10,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65018630] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:50:10,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1689812029] [2024-11-13 23:50:10,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:50:10,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:50:10,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:50:10,614 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:50:10,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 23:50:10,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:50:10,687 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 23:50:10,689 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:50:10,797 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 23:50:10,798 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:50:10,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1689812029] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:50:10,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 23:50:10,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-11-13 23:50:10,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686057148] [2024-11-13 23:50:10,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:50:10,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 23:50:10,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:50:10,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 23:50:10,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 23:50:10,800 INFO L87 Difference]: Start difference. First operand 159 states and 177 transitions. Second operand has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-13 23:50:10,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:50:10,943 INFO L93 Difference]: Finished difference Result 159 states and 177 transitions. [2024-11-13 23:50:10,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 23:50:10,944 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 48 [2024-11-13 23:50:10,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:50:10,946 INFO L225 Difference]: With dead ends: 159 [2024-11-13 23:50:10,947 INFO L226 Difference]: Without dead ends: 150 [2024-11-13 23:50:10,947 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 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 23:50:10,949 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 121 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:50:10,950 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 118 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:50:10,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-11-13 23:50:10,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2024-11-13 23:50:10,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 101 states have (on average 1.4257425742574257) internal successors, (144), 138 states have internal predecessors, (144), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-13 23:50:10,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 164 transitions. [2024-11-13 23:50:10,964 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 164 transitions. Word has length 48 [2024-11-13 23:50:10,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:50:10,965 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 164 transitions. [2024-11-13 23:50:10,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-13 23:50:10,965 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 164 transitions. [2024-11-13 23:50:10,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-13 23:50:10,966 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:50:10,966 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:50:10,992 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-13 23:50:11,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-13 23:50:11,172 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2024-11-13 23:50:11,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:50:11,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1398014875, now seen corresponding path program 1 times [2024-11-13 23:50:11,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:50:11,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134408402] [2024-11-13 23:50:11,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:50:11,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:50:11,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:50:11,307 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 23:50:11,307 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:50:11,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134408402] [2024-11-13 23:50:11,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134408402] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:50:11,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [106272488] [2024-11-13 23:50:11,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:50:11,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:50:11,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:50:11,311 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:50:11,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 23:50:11,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:50:11,379 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 23:50:11,382 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:50:11,498 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 23:50:11,498 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:50:11,656 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 23:50:11,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [106272488] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:50:11,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [51017450] [2024-11-13 23:50:11,685 INFO L159 IcfgInterpreter]: Started Sifa with 42 locations of interest [2024-11-13 23:50:11,685 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:50:11,689 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:50:11,696 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:50:11,696 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:50:17,637 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-13 23:50:17,638 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:50:21,817 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5088#(and (<= 11 ~counter~0) (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= (+ |ULTIMATE.start_main_~t~0#1| 1) |ULTIMATE.start_main_~s~0#1|) (<= 3 |ULTIMATE.start_main_~t~0#1|) (<= 1 |ULTIMATE.start_main_~n~0#1|) (<= |ULTIMATE.start_main_~s~0#1| 9223372036854775807) (<= ~counter~0 2147483647))' at error location [2024-11-13 23:50:21,818 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-13 23:50:21,818 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:50:21,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-13 23:50:21,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302480204] [2024-11-13 23:50:21,818 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 23:50:21,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 23:50:21,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:50:21,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 23:50:21,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=501, Unknown=0, NotChecked=0, Total=600 [2024-11-13 23:50:21,821 INFO L87 Difference]: Start difference. First operand 150 states and 164 transitions. Second operand has 7 states, 6 states have (on average 18.5) internal successors, (111), 7 states have internal predecessors, (111), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-13 23:50:22,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:50:22,074 INFO L93 Difference]: Finished difference Result 274 states and 325 transitions. [2024-11-13 23:50:22,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 23:50:22,074 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 18.5) internal successors, (111), 7 states have internal predecessors, (111), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 49 [2024-11-13 23:50:22,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:50:22,078 INFO L225 Difference]: With dead ends: 274 [2024-11-13 23:50:22,078 INFO L226 Difference]: Without dead ends: 265 [2024-11-13 23:50:22,079 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 110 SyntacticMatches, 15 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 307 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=99, Invalid=501, Unknown=0, NotChecked=0, Total=600 [2024-11-13 23:50:22,079 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 143 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 23:50:22,080 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 214 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 23:50:22,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2024-11-13 23:50:22,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 141. [2024-11-13 23:50:22,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 101 states have (on average 1.297029702970297) internal successors, (131), 129 states have internal predecessors, (131), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-13 23:50:22,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 151 transitions. [2024-11-13 23:50:22,094 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 151 transitions. Word has length 49 [2024-11-13 23:50:22,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:50:22,094 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 151 transitions. [2024-11-13 23:50:22,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 18.5) internal successors, (111), 7 states have internal predecessors, (111), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-13 23:50:22,095 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 151 transitions. [2024-11-13 23:50:22,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-13 23:50:22,096 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:50:22,096 INFO L215 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:50:22,121 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-13 23:50:22,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-13 23:50:22,297 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2024-11-13 23:50:22,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:50:22,298 INFO L85 PathProgramCache]: Analyzing trace with hash 608459571, now seen corresponding path program 1 times [2024-11-13 23:50:22,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:50:22,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516890710] [2024-11-13 23:50:22,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:50:22,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:50:22,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:50:22,472 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 23:50:22,472 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:50:22,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516890710] [2024-11-13 23:50:22,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516890710] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:50:22,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2108150508] [2024-11-13 23:50:22,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:50:22,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:50:22,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:50:22,475 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:50:22,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 23:50:22,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:50:22,555 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 23:50:22,557 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:50:22,674 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 23:50:22,674 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:50:22,817 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 23:50:22,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2108150508] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:50:22,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2045856397] [2024-11-13 23:50:22,822 INFO L159 IcfgInterpreter]: Started Sifa with 51 locations of interest [2024-11-13 23:50:22,822 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:50:22,822 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:50:22,823 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:50:22,824 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:50:25,565 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-13 23:50:25,566 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:50:33,597 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5931#(and (<= 1 |ULTIMATE.start_main_~s~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~s~0#1| 4611686020574871552) (<= 1 |ULTIMATE.start_main_~t~0#1|) (<= |ULTIMATE.start_main_~t~0#1| 4611686018427387905) (<= 1 ~counter~0) (<= ~counter~0 2147483647) (= (mod (+ |ULTIMATE.start_main_~t~0#1| 1) 2) 0) (<= 9223372036854775808 (+ (* (div (+ (- 1) |ULTIMATE.start_main_~t~0#1|) 2) (div (+ (- 1) |ULTIMATE.start_main_~t~0#1|) 2)) |ULTIMATE.start_main_~t~0#1|)) (<= 0 (+ |ULTIMATE.start_main_~n~0#1| 2147483648)))' at error location [2024-11-13 23:50:33,597 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-13 23:50:33,597 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:50:33,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 6] total 13 [2024-11-13 23:50:33,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544644721] [2024-11-13 23:50:33,598 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 23:50:33,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 23:50:33,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:50:33,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 23:50:33,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=1014, Unknown=1, NotChecked=0, Total=1190 [2024-11-13 23:50:33,604 INFO L87 Difference]: Start difference. First operand 141 states and 151 transitions. Second operand has 13 states, 13 states have (on average 7.230769230769231) internal successors, (94), 13 states have internal predecessors, (94), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-13 23:50:33,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:50:33,893 INFO L93 Difference]: Finished difference Result 365 states and 385 transitions. [2024-11-13 23:50:33,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 23:50:33,893 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.230769230769231) internal successors, (94), 13 states have internal predecessors, (94), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 60 [2024-11-13 23:50:33,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:50:33,896 INFO L225 Difference]: With dead ends: 365 [2024-11-13 23:50:33,896 INFO L226 Difference]: Without dead ends: 327 [2024-11-13 23:50:33,897 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 139 SyntacticMatches, 13 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 888 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=238, Invalid=1401, Unknown=1, NotChecked=0, Total=1640 [2024-11-13 23:50:33,898 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 218 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:50:33,898 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 508 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:50:33,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2024-11-13 23:50:33,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 247. [2024-11-13 23:50:33,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 194 states have (on average 1.3402061855670102) internal successors, (260), 224 states have internal predecessors, (260), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 17 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-13 23:50:33,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 300 transitions. [2024-11-13 23:50:33,922 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 300 transitions. Word has length 60 [2024-11-13 23:50:33,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:50:33,922 INFO L471 AbstractCegarLoop]: Abstraction has 247 states and 300 transitions. [2024-11-13 23:50:33,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.230769230769231) internal successors, (94), 13 states have internal predecessors, (94), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-13 23:50:33,923 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 300 transitions. [2024-11-13 23:50:33,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-13 23:50:33,924 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:50:33,924 INFO L215 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:50:33,953 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-13 23:50:34,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-13 23:50:34,128 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2024-11-13 23:50:34,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:50:34,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1677672581, now seen corresponding path program 1 times [2024-11-13 23:50:34,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:50:34,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049219107] [2024-11-13 23:50:34,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:50:34,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:50:34,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 23:50:34,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1782069228] [2024-11-13 23:50:34,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:50:34,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:50:34,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:50:34,160 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:50:34,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-13 23:50:34,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:50:34,215 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 23:50:34,216 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:50:34,301 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 23:50:34,302 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:50:34,462 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 23:50:34,462 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:50:34,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049219107] [2024-11-13 23:50:34,462 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 23:50:34,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1782069228] [2024-11-13 23:50:34,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1782069228] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:50:34,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [70843461] [2024-11-13 23:50:34,465 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-13 23:50:34,465 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:50:34,465 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:50:34,466 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:50:34,466 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:50:36,961 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-13 23:50:36,962 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:50:40,320 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7011#(and (<= 0 (+ ~counter~0 2147483648)) (<= ~counter~0 10) (<= 0 (+ 9223372036854775807 |ULTIMATE.start_main_~t~0#1|)) (<= |ULTIMATE.start_main_~t~0#1| 9223372036854775807) (exists ((|v_ULTIMATE.start_main_~a~0#1_84| Int)) (and (<= 0 (+ |v_ULTIMATE.start_main_~a~0#1_84| 4611686018427387904)) (<= 9223372036854775807 (+ (* |v_ULTIMATE.start_main_~a~0#1_84| |v_ULTIMATE.start_main_~a~0#1_84|) (* 2 |v_ULTIMATE.start_main_~a~0#1_84|))) (<= |v_ULTIMATE.start_main_~a~0#1_84| 4611686018427387903))))' at error location [2024-11-13 23:50:40,320 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-13 23:50:40,320 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 23:50:40,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2024-11-13 23:50:40,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687029416] [2024-11-13 23:50:40,320 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 23:50:40,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 23:50:40,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:50:40,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 23:50:40,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=418, Unknown=0, NotChecked=0, Total=506 [2024-11-13 23:50:40,322 INFO L87 Difference]: Start difference. First operand 247 states and 300 transitions. Second operand has 6 states, 5 states have (on average 19.4) internal successors, (97), 6 states have internal predecessors, (97), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-13 23:50:40,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:50:40,634 INFO L93 Difference]: Finished difference Result 336 states and 357 transitions. [2024-11-13 23:50:40,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 23:50:40,635 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.4) internal successors, (97), 6 states have internal predecessors, (97), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 60 [2024-11-13 23:50:40,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:50:40,637 INFO L225 Difference]: With dead ends: 336 [2024-11-13 23:50:40,637 INFO L226 Difference]: Without dead ends: 334 [2024-11-13 23:50:40,638 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 138 SyntacticMatches, 19 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=96, Invalid=456, Unknown=0, NotChecked=0, Total=552 [2024-11-13 23:50:40,639 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 236 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 23:50:40,639 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 314 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 23:50:40,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2024-11-13 23:50:40,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 258. [2024-11-13 23:50:40,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 204 states have (on average 1.2990196078431373) internal successors, (265), 234 states have internal predecessors, (265), 21 states have call successors, (21), 5 states have call predecessors, (21), 5 states have return successors, (21), 18 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-13 23:50:40,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 307 transitions. [2024-11-13 23:50:40,659 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 307 transitions. Word has length 60 [2024-11-13 23:50:40,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:50:40,659 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 307 transitions. [2024-11-13 23:50:40,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.4) internal successors, (97), 6 states have internal predecessors, (97), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-13 23:50:40,659 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 307 transitions. [2024-11-13 23:50:40,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-13 23:50:40,660 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:50:40,660 INFO L215 NwaCegarLoop]: trace histogram [5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:50:40,684 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-13 23:50:40,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:50:40,865 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2024-11-13 23:50:40,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:50:40,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1722085183, now seen corresponding path program 1 times [2024-11-13 23:50:40,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:50:40,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546434934] [2024-11-13 23:50:40,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:50:40,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:50:40,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 23:50:40,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1476312040] [2024-11-13 23:50:40,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:50:40,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:50:40,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:50:40,889 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:50:40,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-13 23:50:40,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:50:40,954 INFO L255 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 23:50:40,956 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:50:41,041 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-13 23:50:41,042 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:50:41,210 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-13 23:50:41,210 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:50:41,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546434934] [2024-11-13 23:50:41,210 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 23:50:41,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1476312040] [2024-11-13 23:50:41,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1476312040] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:50:41,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1370774610] [2024-11-13 23:50:41,212 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-13 23:50:41,212 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:50:41,213 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:50:41,215 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:50:41,215 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:50:43,590 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-13 23:50:43,591 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:50:47,229 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8086#(and (<= 0 (+ ~counter~0 2147483648)) (<= ~counter~0 10) (= (+ (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1|) 1 (* 2 |ULTIMATE.start_main_~a~0#1|)) |ULTIMATE.start_main_~s~0#1|) (exists ((|v_ULTIMATE.start_main_~t~0#1_89| Int)) (and (<= |v_ULTIMATE.start_main_~t~0#1_89| 9223372036854775807) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~t~0#1_89| |v_ULTIMATE.start_main_~t~0#1_89|)) (<= 0 (+ 9223372036854775807 |v_ULTIMATE.start_main_~t~0#1_89|)))) (<= (+ (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1|) (* 2 |ULTIMATE.start_main_~a~0#1|)) 9223372036854775806))' at error location [2024-11-13 23:50:47,229 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-13 23:50:47,229 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 23:50:47,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2024-11-13 23:50:47,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560789201] [2024-11-13 23:50:47,230 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 23:50:47,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 23:50:47,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:50:47,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 23:50:47,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=428, Unknown=0, NotChecked=0, Total=506 [2024-11-13 23:50:47,231 INFO L87 Difference]: Start difference. First operand 258 states and 307 transitions. Second operand has 6 states, 5 states have (on average 20.2) internal successors, (101), 6 states have internal predecessors, (101), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-13 23:50:47,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:50:47,611 INFO L93 Difference]: Finished difference Result 297 states and 359 transitions. [2024-11-13 23:50:47,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 23:50:47,612 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 20.2) internal successors, (101), 6 states have internal predecessors, (101), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 65 [2024-11-13 23:50:47,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:50:47,613 INFO L225 Difference]: With dead ends: 297 [2024-11-13 23:50:47,613 INFO L226 Difference]: Without dead ends: 289 [2024-11-13 23:50:47,614 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 152 SyntacticMatches, 20 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=84, Invalid=468, Unknown=0, NotChecked=0, Total=552 [2024-11-13 23:50:47,615 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 191 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 23:50:47,616 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 242 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 23:50:47,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2024-11-13 23:50:47,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 257. [2024-11-13 23:50:47,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 208 states have (on average 1.2163461538461537) internal successors, (253), 231 states have internal predecessors, (253), 22 states have call successors, (22), 5 states have call predecessors, (22), 5 states have return successors, (22), 20 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-13 23:50:47,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 297 transitions. [2024-11-13 23:50:47,646 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 297 transitions. Word has length 65 [2024-11-13 23:50:47,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:50:47,647 INFO L471 AbstractCegarLoop]: Abstraction has 257 states and 297 transitions. [2024-11-13 23:50:47,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.2) internal successors, (101), 6 states have internal predecessors, (101), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-13 23:50:47,647 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 297 transitions. [2024-11-13 23:50:47,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-13 23:50:47,649 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:50:47,649 INFO L215 NwaCegarLoop]: trace histogram [5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 23:50:47,672 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-13 23:50:47,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-13 23:50:47,850 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2024-11-13 23:50:47,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:50:47,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1845033194, now seen corresponding path program 1 times [2024-11-13 23:50:47,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:50:47,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500366240] [2024-11-13 23:50:47,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:50:47,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:50:47,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:50:48,051 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-13 23:50:48,051 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:50:48,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500366240] [2024-11-13 23:50:48,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500366240] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:50:48,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [335081335] [2024-11-13 23:50:48,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:50:48,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:50:48,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:50:48,055 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:50:48,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-13 23:50:48,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:50:48,127 INFO L255 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 23:50:48,130 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:50:48,346 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-13 23:50:48,347 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:50:48,543 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-13 23:50:48,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [335081335] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:50:48,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1778542212] [2024-11-13 23:50:48,545 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-13 23:50:48,545 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:50:48,549 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:50:48,549 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:50:48,549 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:50:50,781 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-13 23:50:50,782 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:50:54,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1778542212] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:50:54,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:50:54,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [4, 4, 4] total 25 [2024-11-13 23:50:54,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674543865] [2024-11-13 23:50:54,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:50:54,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-13 23:50:54,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:50:54,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-13 23:50:54,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=518, Unknown=0, NotChecked=0, Total=650 [2024-11-13 23:50:54,076 INFO L87 Difference]: Start difference. First operand 257 states and 297 transitions. Second operand has 18 states, 15 states have (on average 2.4) internal successors, (36), 16 states have internal predecessors, (36), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 23:50:59,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:50:59,525 INFO L93 Difference]: Finished difference Result 277 states and 317 transitions. [2024-11-13 23:50:59,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-13 23:50:59,526 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 2.4) internal successors, (36), 16 states have internal predecessors, (36), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 66 [2024-11-13 23:50:59,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:50:59,527 INFO L225 Difference]: With dead ends: 277 [2024-11-13 23:50:59,527 INFO L226 Difference]: Without dead ends: 209 [2024-11-13 23:50:59,529 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 155 SyntacticMatches, 21 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 740 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=528, Invalid=1728, Unknown=0, NotChecked=0, Total=2256 [2024-11-13 23:50:59,529 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 211 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1265 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 1318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-13 23:50:59,529 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 10 Invalid, 1318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1265 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-13 23:50:59,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2024-11-13 23:50:59,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2024-11-13 23:50:59,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 176 states have (on average 1.0795454545454546) internal successors, (190), 187 states have internal predecessors, (190), 16 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-13 23:50:59,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 222 transitions. [2024-11-13 23:50:59,553 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 222 transitions. Word has length 66 [2024-11-13 23:50:59,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:50:59,553 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 222 transitions. [2024-11-13 23:50:59,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 2.4) internal successors, (36), 16 states have internal predecessors, (36), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 23:50:59,554 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 222 transitions. [2024-11-13 23:50:59,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-13 23:50:59,554 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:50:59,554 INFO L215 NwaCegarLoop]: trace histogram [5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:50:59,579 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-13 23:50:59,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-13 23:50:59,755 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2024-11-13 23:50:59,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:50:59,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1361454241, now seen corresponding path program 1 times [2024-11-13 23:50:59,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:50:59,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907641477] [2024-11-13 23:50:59,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:50:59,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:50:59,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:50:59,903 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-13 23:50:59,903 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:50:59,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907641477] [2024-11-13 23:50:59,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907641477] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:50:59,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [791930020] [2024-11-13 23:50:59,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:50:59,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:50:59,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:50:59,906 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:50:59,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-13 23:50:59,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:50:59,972 INFO L255 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 23:50:59,974 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:51:00,166 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-13 23:51:00,166 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:51:00,317 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-13 23:51:00,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [791930020] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:51:00,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [250904957] [2024-11-13 23:51:00,320 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-13 23:51:00,320 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:51:00,321 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:51:00,325 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:51:00,325 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:51:02,436 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-13 23:51:02,437 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:51:06,138 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '10156#(and (<= 0 (+ ~counter~0 2147483648)) (<= ~counter~0 10) (<= (* |ULTIMATE.start_main_~t~0#1| |ULTIMATE.start_main_~t~0#1|) 9223372036854775807) (<= (+ (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1|) (* 2 |ULTIMATE.start_main_~a~0#1|)) 9223372036854775806) (<= 2305843009213693951 (+ (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1|) (* 2 |ULTIMATE.start_main_~a~0#1|))))' at error location [2024-11-13 23:51:06,138 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-13 23:51:06,138 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:51:06,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-13 23:51:06,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259297455] [2024-11-13 23:51:06,139 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 23:51:06,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 23:51:06,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:51:06,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 23:51:06,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=598, Unknown=0, NotChecked=0, Total=702 [2024-11-13 23:51:06,140 INFO L87 Difference]: Start difference. First operand 209 states and 222 transitions. Second operand has 10 states, 9 states have (on average 15.444444444444445) internal successors, (139), 10 states have internal predecessors, (139), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-13 23:51:06,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:51:06,377 INFO L93 Difference]: Finished difference Result 210 states and 222 transitions. [2024-11-13 23:51:06,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 23:51:06,377 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 15.444444444444445) internal successors, (139), 10 states have internal predecessors, (139), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 67 [2024-11-13 23:51:06,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:51:06,379 INFO L225 Difference]: With dead ends: 210 [2024-11-13 23:51:06,379 INFO L226 Difference]: Without dead ends: 206 [2024-11-13 23:51:06,379 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 157 SyntacticMatches, 21 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 593 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=124, Invalid=688, Unknown=0, NotChecked=0, Total=812 [2024-11-13 23:51:06,380 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 37 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 23:51:06,380 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 243 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 23:51:06,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2024-11-13 23:51:06,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2024-11-13 23:51:06,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 176 states have (on average 1.0511363636363635) internal successors, (185), 184 states have internal predecessors, (185), 16 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-13 23:51:06,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 217 transitions. [2024-11-13 23:51:06,407 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 217 transitions. Word has length 67 [2024-11-13 23:51:06,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:51:06,407 INFO L471 AbstractCegarLoop]: Abstraction has 206 states and 217 transitions. [2024-11-13 23:51:06,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 15.444444444444445) internal successors, (139), 10 states have internal predecessors, (139), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-13 23:51:06,408 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 217 transitions. [2024-11-13 23:51:06,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-13 23:51:06,409 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:51:06,410 INFO L215 NwaCegarLoop]: trace histogram [11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1] [2024-11-13 23:51:06,434 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-13 23:51:06,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-13 23:51:06,611 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2024-11-13 23:51:06,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:51:06,612 INFO L85 PathProgramCache]: Analyzing trace with hash -76800563, now seen corresponding path program 2 times [2024-11-13 23:51:06,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:51:06,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057188405] [2024-11-13 23:51:06,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:51:06,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:51:06,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:51:06,995 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2024-11-13 23:51:06,996 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:51:06,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057188405] [2024-11-13 23:51:06,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057188405] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:51:06,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1499090617] [2024-11-13 23:51:06,997 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 23:51:06,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:51:06,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:51:07,000 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:51:07,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-13 23:51:07,073 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-13 23:51:07,073 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 23:51:07,075 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-13 23:51:07,078 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:51:07,447 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 18 proven. 72 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2024-11-13 23:51:07,448 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:51:08,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1499090617] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:51:08,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [850176666] [2024-11-13 23:51:08,639 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-13 23:51:08,639 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:51:08,640 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:51:08,640 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:51:08,640 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:51:10,988 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-13 23:51:10,989 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:51:17,841 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '11221#(and (<= 0 (+ ~counter~0 2147483648)) (<= ~counter~0 10) (<= (* |ULTIMATE.start_main_~t~0#1| |ULTIMATE.start_main_~t~0#1|) 9223372036854775807) (<= (+ (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1|) (* 2 |ULTIMATE.start_main_~a~0#1|)) 9223372036854775806) (<= 2305843009213693951 (+ (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1|) (* 2 |ULTIMATE.start_main_~a~0#1|))))' at error location [2024-11-13 23:51:17,841 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-13 23:51:17,841 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 23:51:17,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 14 [2024-11-13 23:51:17,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198784326] [2024-11-13 23:51:17,841 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 23:51:17,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-13 23:51:17,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:51:17,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-13 23:51:17,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=1088, Unknown=0, NotChecked=0, Total=1260 [2024-11-13 23:51:17,843 INFO L87 Difference]: Start difference. First operand 206 states and 217 transitions. Second operand has 15 states, 13 states have (on average 13.76923076923077) internal successors, (179), 15 states have internal predecessors, (179), 7 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) [2024-11-13 23:51:19,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:51:19,460 INFO L93 Difference]: Finished difference Result 225 states and 238 transitions. [2024-11-13 23:51:19,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-13 23:51:19,461 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 13.76923076923077) internal successors, (179), 15 states have internal predecessors, (179), 7 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) Word has length 151 [2024-11-13 23:51:19,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:51:19,463 INFO L225 Difference]: With dead ends: 225 [2024-11-13 23:51:19,463 INFO L226 Difference]: Without dead ends: 223 [2024-11-13 23:51:19,464 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 258 SyntacticMatches, 49 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1982 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=523, Invalid=2339, Unknown=0, NotChecked=0, Total=2862 [2024-11-13 23:51:19,465 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 403 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 23:51:19,465 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [403 Valid, 146 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 23:51:19,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2024-11-13 23:51:19,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 204. [2024-11-13 23:51:19,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 176 states have (on average 1.0397727272727273) internal successors, (183), 182 states have internal predecessors, (183), 16 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-13 23:51:19,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 215 transitions. [2024-11-13 23:51:19,488 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 215 transitions. Word has length 151 [2024-11-13 23:51:19,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:51:19,489 INFO L471 AbstractCegarLoop]: Abstraction has 204 states and 215 transitions. [2024-11-13 23:51:19,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 13.76923076923077) internal successors, (179), 15 states have internal predecessors, (179), 7 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) [2024-11-13 23:51:19,489 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 215 transitions. [2024-11-13 23:51:19,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-13 23:51:19,491 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:51:19,491 INFO L215 NwaCegarLoop]: trace histogram [13, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:51:19,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-13 23:51:19,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:51:19,695 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2024-11-13 23:51:19,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:51:19,696 INFO L85 PathProgramCache]: Analyzing trace with hash 336012529, now seen corresponding path program 2 times [2024-11-13 23:51:19,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:51:19,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115477844] [2024-11-13 23:51:19,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:51:19,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:51:19,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:51:20,174 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 0 proven. 232 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-13 23:51:20,174 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:51:20,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115477844] [2024-11-13 23:51:20,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115477844] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:51:20,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [593687356] [2024-11-13 23:51:20,174 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 23:51:20,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:51:20,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:51:20,177 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:51:20,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-13 23:51:20,263 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-13 23:51:20,263 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 23:51:20,264 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 23:51:20,268 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:51:21,044 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 40 proven. 34 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2024-11-13 23:51:21,044 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:51:43,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [593687356] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:51:43,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [556814848] [2024-11-13 23:51:43,512 INFO L159 IcfgInterpreter]: Started Sifa with 51 locations of interest [2024-11-13 23:51:43,512 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:51:43,513 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:51:43,513 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:51:43,513 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:51:45,286 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-13 23:51:45,287 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:52:06,676 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '12551#(and (<= 1 |ULTIMATE.start_main_~s~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~s~0#1| 4611686020574871552) (<= 1 |ULTIMATE.start_main_~t~0#1|) (<= |ULTIMATE.start_main_~t~0#1| 4611686018427387905) (<= 1 ~counter~0) (<= ~counter~0 2147483647) (= (mod (+ |ULTIMATE.start_main_~t~0#1| 1) 2) 0) (<= 9223372036854775808 (+ (* (div (+ (- 1) |ULTIMATE.start_main_~t~0#1|) 2) (div (+ (- 1) |ULTIMATE.start_main_~t~0#1|) 2)) |ULTIMATE.start_main_~t~0#1|)) (<= 0 (+ |ULTIMATE.start_main_~n~0#1| 2147483648)))' at error location [2024-11-13 23:52:06,676 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-13 23:52:06,676 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 23:52:06,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 8] total 20 [2024-11-13 23:52:06,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128765819] [2024-11-13 23:52:06,677 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 23:52:06,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-13 23:52:06,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:52:06,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-13 23:52:06,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=423, Invalid=2023, Unknown=4, NotChecked=0, Total=2450 [2024-11-13 23:52:06,680 INFO L87 Difference]: Start difference. First operand 204 states and 215 transitions. Second operand has 20 states, 19 states have (on average 11.0) internal successors, (209), 19 states have internal predecessors, (209), 8 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 8 states have call predecessors, (18), 8 states have call successors, (18) [2024-11-13 23:52:15,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:52:15,471 INFO L93 Difference]: Finished difference Result 258 states and 272 transitions. [2024-11-13 23:52:15,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-11-13 23:52:15,472 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 11.0) internal successors, (209), 19 states have internal predecessors, (209), 8 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 8 states have call predecessors, (18), 8 states have call successors, (18) Word has length 186 [2024-11-13 23:52:15,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:52:15,473 INFO L225 Difference]: With dead ends: 258 [2024-11-13 23:52:15,474 INFO L226 Difference]: Without dead ends: 225 [2024-11-13 23:52:15,476 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 490 GetRequests, 369 SyntacticMatches, 34 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3880 ImplicationChecksByTransitivity, 44.5s TimeCoverageRelationStatistics Valid=1377, Invalid=6450, Unknown=5, NotChecked=0, Total=7832 [2024-11-13 23:52:15,477 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 557 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 777 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 557 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-13 23:52:15,477 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [557 Valid, 172 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 777 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-13 23:52:15,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2024-11-13 23:52:15,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 224. [2024-11-13 23:52:15,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 198 states have (on average 1.0151515151515151) internal successors, (201), 200 states have internal predecessors, (201), 17 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-13 23:52:15,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 235 transitions. [2024-11-13 23:52:15,514 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 235 transitions. Word has length 186 [2024-11-13 23:52:15,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:52:15,514 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 235 transitions. [2024-11-13 23:52:15,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 11.0) internal successors, (209), 19 states have internal predecessors, (209), 8 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 8 states have call predecessors, (18), 8 states have call successors, (18) [2024-11-13 23:52:15,515 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 235 transitions. [2024-11-13 23:52:15,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2024-11-13 23:52:15,519 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:52:15,519 INFO L215 NwaCegarLoop]: trace histogram [17, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:52:15,544 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-13 23:52:15,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:52:15,723 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2024-11-13 23:52:15,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:52:15,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1783066649, now seen corresponding path program 1 times [2024-11-13 23:52:15,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:52:15,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319671222] [2024-11-13 23:52:15,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:52:15,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:52:15,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:52:16,311 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 380 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2024-11-13 23:52:16,311 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:52:16,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319671222] [2024-11-13 23:52:16,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319671222] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:52:16,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [5289325] [2024-11-13 23:52:16,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:52:16,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:52:16,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:52:16,315 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:52:16,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-13 23:52:16,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:52:16,450 INFO L255 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-13 23:52:16,456 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:52:16,903 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 60 proven. 560 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-13 23:52:16,903 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:52:17,536 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 380 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2024-11-13 23:52:17,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [5289325] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:52:17,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [367038315] [2024-11-13 23:52:17,538 INFO L159 IcfgInterpreter]: Started Sifa with 58 locations of interest [2024-11-13 23:52:17,538 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:52:17,539 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:52:17,539 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:52:17,539 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:52:19,869 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-13 23:52:19,872 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:52:28,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [367038315] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:52:28,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:52:28,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [15, 13, 14] total 47 [2024-11-13 23:52:28,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746588405] [2024-11-13 23:52:28,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:52:28,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-13 23:52:28,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:52:28,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-13 23:52:28,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=314, Invalid=1848, Unknown=0, NotChecked=0, Total=2162 [2024-11-13 23:52:28,477 INFO L87 Difference]: Start difference. First operand 224 states and 235 transitions. Second operand has 24 states, 20 states have (on average 2.6) internal successors, (52), 22 states have internal predecessors, (52), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-13 23:52:32,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:52:32,444 INFO L93 Difference]: Finished difference Result 230 states and 241 transitions. [2024-11-13 23:52:32,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-13 23:52:32,445 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 20 states have (on average 2.6) internal successors, (52), 22 states have internal predecessors, (52), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 237 [2024-11-13 23:52:32,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:52:32,445 INFO L225 Difference]: With dead ends: 230 [2024-11-13 23:52:32,446 INFO L226 Difference]: Without dead ends: 0 [2024-11-13 23:52:32,449 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 736 GetRequests, 628 SyntacticMatches, 51 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3186 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=513, Invalid=2909, Unknown=0, NotChecked=0, Total=3422 [2024-11-13 23:52:32,450 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 174 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-13 23:52:32,450 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 8 Invalid, 734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 698 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-13 23:52:32,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-13 23:52:32,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-13 23:52:32,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:52:32,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-13 23:52:32,455 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 237 [2024-11-13 23:52:32,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:52:32,456 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 23:52:32,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 20 states have (on average 2.6) internal successors, (52), 22 states have internal predecessors, (52), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-13 23:52:32,456 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-13 23:52:32,456 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-13 23:52:32,458 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 52 remaining) [2024-11-13 23:52:32,464 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 52 remaining) [2024-11-13 23:52:32,464 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 52 remaining) [2024-11-13 23:52:32,464 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 52 remaining) [2024-11-13 23:52:32,464 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 52 remaining) [2024-11-13 23:52:32,464 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 52 remaining) [2024-11-13 23:52:32,464 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 52 remaining) [2024-11-13 23:52:32,464 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 52 remaining) [2024-11-13 23:52:32,464 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 52 remaining) [2024-11-13 23:52:32,464 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 52 remaining) [2024-11-13 23:52:32,465 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 52 remaining) [2024-11-13 23:52:32,465 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 52 remaining) [2024-11-13 23:52:32,465 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 52 remaining) [2024-11-13 23:52:32,465 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 52 remaining) [2024-11-13 23:52:32,465 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 52 remaining) [2024-11-13 23:52:32,465 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 52 remaining) [2024-11-13 23:52:32,465 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 52 remaining) [2024-11-13 23:52:32,465 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 52 remaining) [2024-11-13 23:52:32,465 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 52 remaining) [2024-11-13 23:52:32,465 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 52 remaining) [2024-11-13 23:52:32,465 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 52 remaining) [2024-11-13 23:52:32,465 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 52 remaining) [2024-11-13 23:52:32,465 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 52 remaining) [2024-11-13 23:52:32,465 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 52 remaining) [2024-11-13 23:52:32,465 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 52 remaining) [2024-11-13 23:52:32,465 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 52 remaining) [2024-11-13 23:52:32,466 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 52 remaining) [2024-11-13 23:52:32,466 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 52 remaining) [2024-11-13 23:52:32,466 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 52 remaining) [2024-11-13 23:52:32,466 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 52 remaining) [2024-11-13 23:52:32,466 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 52 remaining) [2024-11-13 23:52:32,466 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 52 remaining) [2024-11-13 23:52:32,466 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 52 remaining) [2024-11-13 23:52:32,466 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 52 remaining) [2024-11-13 23:52:32,466 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 52 remaining) [2024-11-13 23:52:32,466 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 52 remaining) [2024-11-13 23:52:32,466 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 52 remaining) [2024-11-13 23:52:32,466 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 52 remaining) [2024-11-13 23:52:32,466 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 52 remaining) [2024-11-13 23:52:32,466 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 52 remaining) [2024-11-13 23:52:32,466 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 52 remaining) [2024-11-13 23:52:32,467 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 52 remaining) [2024-11-13 23:52:32,467 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 52 remaining) [2024-11-13 23:52:32,470 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 52 remaining) [2024-11-13 23:52:32,470 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 52 remaining) [2024-11-13 23:52:32,470 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 52 remaining) [2024-11-13 23:52:32,470 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 52 remaining) [2024-11-13 23:52:32,470 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 52 remaining) [2024-11-13 23:52:32,474 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 52 remaining) [2024-11-13 23:52:32,474 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 52 remaining) [2024-11-13 23:52:32,474 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr50ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 52 remaining) [2024-11-13 23:52:32,474 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 52 remaining) [2024-11-13 23:52:32,521 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-13 23:52:32,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-13 23:52:32,678 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:52:32,681 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-13 23:52:36,602 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 23:52:36,617 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-13 23:52:36,618 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-13 23:52:36,618 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-13 23:52:36,618 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-13 23:52:36,618 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-13 23:52:36,619 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-13 23:52:36,619 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-13 23:52:36,619 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-13 23:52:36,619 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-13 23:52:36,620 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-13 23:52:36,620 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-13 23:52:36,620 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-13 23:52:36,620 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-13 23:52:36,620 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-13 23:52:36,620 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-13 23:52:36,620 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-13 23:52:36,621 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-13 23:52:36,621 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-13 23:52:36,621 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-13 23:52:36,621 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-13 23:52:36,621 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-13 23:52:36,621 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-13 23:52:36,636 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 11:52:36 BoogieIcfgContainer [2024-11-13 23:52:36,636 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 23:52:36,637 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 23:52:36,637 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 23:52:36,638 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 23:52:36,638 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:50:05" (3/4) ... [2024-11-13 23:52:36,641 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 23:52:36,645 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-13 23:52:36,651 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-13 23:52:36,652 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-13 23:52:36,652 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-13 23:52:36,652 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-13 23:52:36,756 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-13 23:52:36,756 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/witness.yml [2024-11-13 23:52:36,756 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 23:52:36,759 INFO L158 Benchmark]: Toolchain (without parser) took 152842.19ms. Allocated memory was 117.4MB in the beginning and 1.1GB in the end (delta: 973.1MB). Free memory was 92.9MB in the beginning and 765.9MB in the end (delta: -673.0MB). Peak memory consumption was 295.6MB. Max. memory is 16.1GB. [2024-11-13 23:52:36,763 INFO L158 Benchmark]: CDTParser took 0.72ms. Allocated memory is still 117.4MB. Free memory was 73.2MB in the beginning and 73.0MB in the end (delta: 196.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:52:36,763 INFO L158 Benchmark]: CACSL2BoogieTranslator took 275.11ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 81.6MB in the end (delta: 10.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 23:52:36,763 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.62ms. Allocated memory is still 117.4MB. Free memory was 81.6MB in the beginning and 80.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:52:36,764 INFO L158 Benchmark]: Boogie Preprocessor took 37.12ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 79.3MB in the end (delta: 824.3kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 23:52:36,764 INFO L158 Benchmark]: RCFGBuilder took 762.57ms. Allocated memory is still 117.4MB. Free memory was 79.3MB in the beginning and 60.2MB in the end (delta: 19.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 23:52:36,764 INFO L158 Benchmark]: TraceAbstraction took 151588.50ms. Allocated memory was 117.4MB in the beginning and 1.1GB in the end (delta: 973.1MB). Free memory was 59.5MB in the beginning and 770.0MB in the end (delta: -710.5MB). Peak memory consumption was 262.1MB. Max. memory is 16.1GB. [2024-11-13 23:52:36,764 INFO L158 Benchmark]: Witness Printer took 119.18ms. Allocated memory is still 1.1GB. Free memory was 770.0MB in the beginning and 765.9MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:52:36,766 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.72ms. Allocated memory is still 117.4MB. Free memory was 73.2MB in the beginning and 73.0MB in the end (delta: 196.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 275.11ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 81.6MB in the end (delta: 10.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.62ms. Allocated memory is still 117.4MB. Free memory was 81.6MB in the beginning and 80.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 37.12ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 79.3MB in the end (delta: 824.3kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 762.57ms. Allocated memory is still 117.4MB. Free memory was 79.3MB in the beginning and 60.2MB in the end (delta: 19.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 151588.50ms. Allocated memory was 117.4MB in the beginning and 1.1GB in the end (delta: 973.1MB). Free memory was 59.5MB in the beginning and 770.0MB in the end (delta: -710.5MB). Peak memory consumption was 262.1MB. Max. memory is 16.1GB. * Witness Printer took 119.18ms. Allocated memory is still 1.1GB. Free memory was 770.0MB in the beginning and 765.9MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 118 locations, 52 error locations. Started 1 CEGAR loops. OverallTime: 147.5s, OverallIterations: 21, TraceHistogramMax: 17, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 23.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2729 SdHoareTripleChecker+Valid, 11.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2677 mSDsluCounter, 4366 SdHoareTripleChecker+Invalid, 10.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2709 mSDsCounter, 365 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4696 IncrementalHoareTripleChecker+Invalid, 5061 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 365 mSolverCounterUnsat, 1657 mSDtfsCounter, 4696 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2921 GetRequests, 2268 SyntacticMatches, 243 SemanticMatches, 410 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12070 ImplicationChecksByTransitivity, 92.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=258occurred in iteration=15, InterpolantAutomatonStates: 201, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 21 MinimizatonAttempts, 414 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 31.6s InterpolantComputationTime, 2385 NumberOfCodeBlocks, 2160 NumberOfCodeBlocksAsserted, 37 NumberOfCheckSat, 2803 ConstructedInterpolants, 4 QuantifiedInterpolants, 10217 SizeOfPredicates, 25 NumberOfNonLiveVariables, 1639 ConjunctsInSsa, 81 ConjunctsInUnsatCore, 38 InterpolantComputations, 12 PerfectInterpolantSequences, 1765/3807 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 4.6s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 4, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 131, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 333, TOOLS_POST_TIME: 2.2s, TOOLS_POST_CALL_APPLICATIONS: 70, TOOLS_POST_CALL_TIME: 1.0s, TOOLS_POST_RETURN_APPLICATIONS: 62, TOOLS_POST_RETURN_TIME: 0.6s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 465, TOOLS_QUANTIFIERELIM_TIME: 3.6s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 523, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 60, DOMAIN_JOIN_TIME: 0.4s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 4, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 6, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 131, DOMAIN_ISBOTTOM_TIME: 0.2s, LOOP_SUMMARIZER_APPLICATIONS: 2, LOOP_SUMMARIZER_CACHE_MISSES: 2, LOOP_SUMMARIZER_OVERALL_TIME: 2.5s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 2.5s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 6, CALL_SUMMARIZER_APPLICATIONS: 62, CALL_SUMMARIZER_CACHE_MISSES: 2, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.1s, DAG_COMPRESSION_PROCESSED_NODES: 6461, DAG_COMPRESSION_RETAINED_NODES: 363, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 52 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (((((((n <= 2147483647) && (t == 1)) && (counter == 0)) && (a == 0)) && (s == 1)) && (0 <= (n + 2147483648))) || ((((((((n <= 2147483647) && (counter <= 10)) && (s <= ((__int128) n + t))) && (1 <= counter)) && (3 <= t)) && (1 <= a)) && ((((__int128) a * a) + ((__int128) 2 * a)) <= 9223372036854775806)) && (((__int128) s * 4) == ((((__int128) t * t) + ((__int128) 2 * t)) + 1)))) - ProcedureContractResult [Line: 11]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Ensures: (((cond != 0) || ((counter + 2147483648) < 0)) && (counter == \old(counter))) RESULT: Ultimate proved your program to be correct! [2024-11-13 23:52:36,850 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f39595-43aa-4a75-a4ed-04ca5bf0ce25/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE