./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-restricted-15/PastaB15.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11e2b3c0-a3d6-4d6b-b5ca-40517bf1d209/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11e2b3c0-a3d6-4d6b-b5ca-40517bf1d209/bin/utaipan-verify-QoSU8krkJ5/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11e2b3c0-a3d6-4d6b-b5ca-40517bf1d209/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11e2b3c0-a3d6-4d6b-b5ca-40517bf1d209/bin/utaipan-verify-QoSU8krkJ5/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-restricted-15/PastaB15.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11e2b3c0-a3d6-4d6b-b5ca-40517bf1d209/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11e2b3c0-a3d6-4d6b-b5ca-40517bf1d209/bin/utaipan-verify-QoSU8krkJ5 --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 64bit --witnessprinter.graph.data.programhash 856b26ed1b95b9c5e409c9e42274459ceef7cfabfe29e933603f5e3c1c7ce07f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:58:04,066 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:58:04,186 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11e2b3c0-a3d6-4d6b-b5ca-40517bf1d209/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-11-21 18:58:04,197 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:58:04,198 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 18:58:04,240 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:58:04,241 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 18:58:04,242 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 18:58:04,243 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:58:04,248 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 18:58:04,249 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 18:58:04,250 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 18:58:04,251 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 18:58:04,252 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-21 18:58:04,253 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 18:58:04,253 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 18:58:04,254 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-21 18:58:04,254 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-21 18:58:04,255 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 18:58:04,255 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-21 18:58:04,256 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-21 18:58:04,256 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-21 18:58:04,257 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:58:04,258 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:58:04,258 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:58:04,259 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:58:04,259 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:58:04,260 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:58:04,260 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:58:04,260 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:58:04,262 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:58:04,262 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:58:04,262 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:58:04,263 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:58:04,263 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 18:58:04,263 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 18:58:04,263 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 18:58:04,264 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:58:04,264 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:58:04,264 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:58:04,265 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-21 18:58:04,265 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:58:04,265 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 18:58:04,266 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:58:04,266 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 18:58:04,267 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 18:58:04,267 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11e2b3c0-a3d6-4d6b-b5ca-40517bf1d209/bin/utaipan-verify-QoSU8krkJ5/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11e2b3c0-a3d6-4d6b-b5ca-40517bf1d209/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 856b26ed1b95b9c5e409c9e42274459ceef7cfabfe29e933603f5e3c1c7ce07f [2023-11-21 18:58:04,548 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:58:04,579 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:58:04,582 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:58:04,583 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:58:04,585 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:58:04,586 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11e2b3c0-a3d6-4d6b-b5ca-40517bf1d209/bin/utaipan-verify-QoSU8krkJ5/../../sv-benchmarks/c/termination-restricted-15/PastaB15.c [2023-11-21 18:58:07,604 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:58:07,816 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:58:07,817 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11e2b3c0-a3d6-4d6b-b5ca-40517bf1d209/sv-benchmarks/c/termination-restricted-15/PastaB15.c [2023-11-21 18:58:07,824 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11e2b3c0-a3d6-4d6b-b5ca-40517bf1d209/bin/utaipan-verify-QoSU8krkJ5/data/754199d80/2f42e999e21e4840832dd9185700f1af/FLAG0c0edc382 [2023-11-21 18:58:07,839 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11e2b3c0-a3d6-4d6b-b5ca-40517bf1d209/bin/utaipan-verify-QoSU8krkJ5/data/754199d80/2f42e999e21e4840832dd9185700f1af [2023-11-21 18:58:07,842 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:58:07,844 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:58:07,845 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:58:07,846 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:58:07,851 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:58:07,852 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:58:07" (1/1) ... [2023-11-21 18:58:07,853 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@483e40f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:58:07, skipping insertion in model container [2023-11-21 18:58:07,854 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:58:07" (1/1) ... [2023-11-21 18:58:07,878 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:58:08,013 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:58:08,019 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:58:08,032 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:58:08,043 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:58:08,044 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:58:08 WrapperNode [2023-11-21 18:58:08,044 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:58:08,045 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:58:08,046 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:58:08,046 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:58:08,053 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:58:08" (1/1) ... [2023-11-21 18:58:08,056 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:58:08" (1/1) ... [2023-11-21 18:58:08,071 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 33 [2023-11-21 18:58:08,071 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:58:08,072 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:58:08,072 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:58:08,072 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:58:08,081 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:58:08" (1/1) ... [2023-11-21 18:58:08,081 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:58:08" (1/1) ... [2023-11-21 18:58:08,083 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:58:08" (1/1) ... [2023-11-21 18:58:08,084 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:58:08" (1/1) ... [2023-11-21 18:58:08,086 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:58:08" (1/1) ... [2023-11-21 18:58:08,091 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:58:08" (1/1) ... [2023-11-21 18:58:08,092 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:58:08" (1/1) ... [2023-11-21 18:58:08,093 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:58:08" (1/1) ... [2023-11-21 18:58:08,095 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:58:08,096 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:58:08,096 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:58:08,096 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:58:08,097 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:58:08" (1/1) ... [2023-11-21 18:58:08,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 18:58:08,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11e2b3c0-a3d6-4d6b-b5ca-40517bf1d209/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 18:58:08,130 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11e2b3c0-a3d6-4d6b-b5ca-40517bf1d209/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 18:58:08,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11e2b3c0-a3d6-4d6b-b5ca-40517bf1d209/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 18:58:08,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:58:08,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:58:08,244 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:58:08,246 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:58:08,376 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:58:08,426 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:58:08,426 INFO L308 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-21 18:58:08,428 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:58:08 BoogieIcfgContainer [2023-11-21 18:58:08,428 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:58:08,439 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 18:58:08,439 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 18:58:08,442 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 18:58:08,443 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 06:58:07" (1/3) ... [2023-11-21 18:58:08,443 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f3c33b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 06:58:08, skipping insertion in model container [2023-11-21 18:58:08,443 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:58:08" (2/3) ... [2023-11-21 18:58:08,444 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f3c33b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 06:58:08, skipping insertion in model container [2023-11-21 18:58:08,444 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:58:08" (3/3) ... [2023-11-21 18:58:08,445 INFO L112 eAbstractionObserver]: Analyzing ICFG PastaB15.c [2023-11-21 18:58:08,463 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 18:58:08,463 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-21 18:58:08,527 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 18:58:08,535 INFO L357 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, mHoare=true, 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;@49331d85, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 18:58:08,535 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-21 18:58:08,545 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:58:08,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-21 18:58:08,551 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 18:58:08,552 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-21 18:58:08,552 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-21 18:58:08,558 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:58:08,558 INFO L85 PathProgramCache]: Analyzing trace with hash 2126373, now seen corresponding path program 1 times [2023-11-21 18:58:08,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 18:58:08,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258764771] [2023-11-21 18:58:08,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 18:58:08,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:58:08,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:58:08,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:58:08,810 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 18:58:08,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258764771] [2023-11-21 18:58:08,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258764771] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 18:58:08,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 18:58:08,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 18:58:08,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742687881] [2023-11-21 18:58:08,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 18:58:08,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 18:58:08,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 18:58:08,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 18:58:08,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 18:58:08,871 INFO L87 Difference]: Start difference. First operand has 12 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:58:08,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 18:58:08,979 INFO L93 Difference]: Finished difference Result 16 states and 19 transitions. [2023-11-21 18:58:08,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 18:58:08,982 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-21 18:58:08,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 18:58:08,991 INFO L225 Difference]: With dead ends: 16 [2023-11-21 18:58:08,991 INFO L226 Difference]: Without dead ends: 14 [2023-11-21 18:58:08,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 18:58:08,999 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 17 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 18:58:09,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 9 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 18:58:09,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2023-11-21 18:58:09,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2023-11-21 18:58:09,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:58:09,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2023-11-21 18:58:09,033 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 4 [2023-11-21 18:58:09,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 18:58:09,034 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2023-11-21 18:58:09,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:58:09,035 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2023-11-21 18:58:09,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-21 18:58:09,035 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 18:58:09,035 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-21 18:58:09,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 18:58:09,036 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-21 18:58:09,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:58:09,037 INFO L85 PathProgramCache]: Analyzing trace with hash 65917617, now seen corresponding path program 1 times [2023-11-21 18:58:09,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 18:58:09,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361988956] [2023-11-21 18:58:09,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 18:58:09,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:58:09,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:58:09,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:58:09,078 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 18:58:09,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361988956] [2023-11-21 18:58:09,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361988956] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 18:58:09,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 18:58:09,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 18:58:09,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464537820] [2023-11-21 18:58:09,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 18:58:09,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 18:58:09,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 18:58:09,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 18:58:09,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 18:58:09,083 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:58:09,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 18:58:09,098 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2023-11-21 18:58:09,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 18:58:09,099 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-21 18:58:09,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 18:58:09,100 INFO L225 Difference]: With dead ends: 13 [2023-11-21 18:58:09,100 INFO L226 Difference]: Without dead ends: 12 [2023-11-21 18:58:09,100 INFO L412 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 [2023-11-21 18:58:09,102 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 6 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 18:58:09,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 5 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 18:58:09,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2023-11-21 18:58:09,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2023-11-21 18:58:09,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:58:09,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2023-11-21 18:58:09,109 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 5 [2023-11-21 18:58:09,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 18:58:09,109 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2023-11-21 18:58:09,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:58:09,110 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2023-11-21 18:58:09,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 18:58:09,110 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 18:58:09,111 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-21 18:58:09,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 18:58:09,111 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-21 18:58:09,112 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:58:09,112 INFO L85 PathProgramCache]: Analyzing trace with hash 2043446183, now seen corresponding path program 1 times [2023-11-21 18:58:09,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 18:58:09,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473282024] [2023-11-21 18:58:09,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 18:58:09,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:58:09,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:58:09,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:58:09,170 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 18:58:09,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473282024] [2023-11-21 18:58:09,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473282024] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 18:58:09,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 18:58:09,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 18:58:09,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743668676] [2023-11-21 18:58:09,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 18:58:09,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 18:58:09,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 18:58:09,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 18:58:09,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 18:58:09,173 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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) [2023-11-21 18:58:09,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 18:58:09,223 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2023-11-21 18:58:09,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 18:58:09,223 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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 [2023-11-21 18:58:09,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 18:58:09,224 INFO L225 Difference]: With dead ends: 18 [2023-11-21 18:58:09,224 INFO L226 Difference]: Without dead ends: 17 [2023-11-21 18:58:09,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 18:58:09,227 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 7 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 18:58:09,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 6 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 18:58:09,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2023-11-21 18:58:09,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 14. [2023-11-21 18:58:09,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 13 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:58:09,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2023-11-21 18:58:09,234 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 6 [2023-11-21 18:58:09,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 18:58:09,235 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2023-11-21 18:58:09,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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) [2023-11-21 18:58:09,235 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2023-11-21 18:58:09,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-21 18:58:09,236 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 18:58:09,236 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-21 18:58:09,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 18:58:09,237 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-21 18:58:09,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:58:09,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1077677709, now seen corresponding path program 1 times [2023-11-21 18:58:09,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 18:58:09,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143251741] [2023-11-21 18:58:09,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 18:58:09,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:58:09,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:58:09,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:58:09,308 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 18:58:09,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143251741] [2023-11-21 18:58:09,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143251741] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 18:58:09,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 18:58:09,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 18:58:09,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683726063] [2023-11-21 18:58:09,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 18:58:09,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 18:58:09,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 18:58:09,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 18:58:09,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 18:58:09,315 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:58:09,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 18:58:09,352 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2023-11-21 18:58:09,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 18:58:09,352 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-21 18:58:09,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 18:58:09,353 INFO L225 Difference]: With dead ends: 14 [2023-11-21 18:58:09,353 INFO L226 Difference]: Without dead ends: 13 [2023-11-21 18:58:09,354 INFO L412 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 [2023-11-21 18:58:09,355 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 3 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 18:58:09,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 3 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 18:58:09,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2023-11-21 18:58:09,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2023-11-21 18:58:09,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:58:09,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2023-11-21 18:58:09,362 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 7 [2023-11-21 18:58:09,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 18:58:09,366 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2023-11-21 18:58:09,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:58:09,367 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2023-11-21 18:58:09,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-21 18:58:09,367 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 18:58:09,367 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 18:58:09,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 18:58:09,369 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-21 18:58:09,370 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:58:09,370 INFO L85 PathProgramCache]: Analyzing trace with hash -561158411, now seen corresponding path program 1 times [2023-11-21 18:58:09,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 18:58:09,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513999465] [2023-11-21 18:58:09,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 18:58:09,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:58:09,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:58:09,575 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-21 18:58:09,576 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 18:58:09,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513999465] [2023-11-21 18:58:09,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513999465] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 18:58:09,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1632274518] [2023-11-21 18:58:09,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 18:58:09,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 18:58:09,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11e2b3c0-a3d6-4d6b-b5ca-40517bf1d209/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 18:58:09,580 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11e2b3c0-a3d6-4d6b-b5ca-40517bf1d209/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 18:58:09,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11e2b3c0-a3d6-4d6b-b5ca-40517bf1d209/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 18:58:09,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:58:09,642 INFO L262 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-21 18:58:09,647 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:58:09,846 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-21 18:58:09,846 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 18:58:10,022 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:58:10,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1632274518] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 18:58:10,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1269041358] [2023-11-21 18:58:10,051 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2023-11-21 18:58:10,051 INFO L166 IcfgInterpreter]: Building call graph [2023-11-21 18:58:10,056 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-21 18:58:10,062 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-21 18:58:10,063 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-21 18:58:10,420 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-21 18:58:10,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1269041358] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 18:58:10,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-11-21 18:58:10,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4, 5] total 13 [2023-11-21 18:58:10,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486866199] [2023-11-21 18:58:10,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 18:58:10,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 18:58:10,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 18:58:10,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 18:58:10,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2023-11-21 18:58:10,646 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:58:10,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 18:58:10,688 INFO L93 Difference]: Finished difference Result 24 states and 30 transitions. [2023-11-21 18:58:10,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 18:58:10,689 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-21 18:58:10,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 18:58:10,690 INFO L225 Difference]: With dead ends: 24 [2023-11-21 18:58:10,690 INFO L226 Difference]: Without dead ends: 0 [2023-11-21 18:58:10,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 14 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2023-11-21 18:58:10,694 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 2 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 18:58:10,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 0 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 18:58:10,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-21 18:58:10,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-21 18:58:10,699 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) [2023-11-21 18:58:10,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-21 18:58:10,699 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2023-11-21 18:58:10,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 18:58:10,700 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-21 18:58:10,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 18:58:10,700 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-21 18:58:10,700 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-21 18:58:10,703 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2023-11-21 18:58:10,704 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2023-11-21 18:58:10,704 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2023-11-21 18:58:10,705 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2023-11-21 18:58:10,732 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11e2b3c0-a3d6-4d6b-b5ca-40517bf1d209/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-21 18:58:10,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11e2b3c0-a3d6-4d6b-b5ca-40517bf1d209/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 18:58:10,926 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-21 18:58:11,001 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2023-11-21 18:58:11,001 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-21 18:58:11,002 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2023-11-21 18:58:11,002 INFO L899 garLoopResultBuilder]: For program point L15(line 15) no Hoare annotation was computed. [2023-11-21 18:58:11,002 INFO L899 garLoopResultBuilder]: For program point L15-1(line 15) no Hoare annotation was computed. [2023-11-21 18:58:11,002 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-21 18:58:11,003 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2023-11-21 18:58:11,003 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2023-11-21 18:58:11,003 INFO L899 garLoopResultBuilder]: For program point L16(line 16) no Hoare annotation was computed. [2023-11-21 18:58:11,003 INFO L899 garLoopResultBuilder]: For program point L16-1(line 16) no Hoare annotation was computed. [2023-11-21 18:58:11,004 INFO L895 garLoopResultBuilder]: At program point L14-2(lines 14 17) the Hoare annotation is: (and (= |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~z~0#1| |ULTIMATE.start_main_~x~0#1|) (<= 0 (+ |ULTIMATE.start_main_~z~0#1| 2147483648)) (<= |ULTIMATE.start_main_~z~0#1| 2147483646) (<= |ULTIMATE.start_main_~y~0#1| 2147483647)) [2023-11-21 18:58:11,004 INFO L895 garLoopResultBuilder]: At program point L14-3(lines 13 18) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~z~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~z~0#1| 2147483648)) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_main_~y~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y~0#1| 2147483647)) [2023-11-21 18:58:11,007 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-21 18:58:11,015 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 18:58:11,032 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 06:58:11 BoogieIcfgContainer [2023-11-21 18:58:11,032 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 18:58:11,033 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:58:11,033 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:58:11,033 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:58:11,034 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:58:08" (3/4) ... [2023-11-21 18:58:11,036 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-21 18:58:11,044 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-21 18:58:11,044 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-21 18:58:11,044 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-21 18:58:11,133 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11e2b3c0-a3d6-4d6b-b5ca-40517bf1d209/bin/utaipan-verify-QoSU8krkJ5/witness.graphml [2023-11-21 18:58:11,134 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11e2b3c0-a3d6-4d6b-b5ca-40517bf1d209/bin/utaipan-verify-QoSU8krkJ5/witness.yml [2023-11-21 18:58:11,134 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:58:11,135 INFO L158 Benchmark]: Toolchain (without parser) took 3290.87ms. Allocated memory was 136.3MB in the beginning and 195.0MB in the end (delta: 58.7MB). Free memory was 90.7MB in the beginning and 109.1MB in the end (delta: -18.5MB). Peak memory consumption was 40.9MB. Max. memory is 16.1GB. [2023-11-21 18:58:11,135 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 136.3MB. Free memory is still 82.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:58:11,135 INFO L158 Benchmark]: CACSL2BoogieTranslator took 199.39ms. Allocated memory is still 136.3MB. Free memory was 90.7MB in the beginning and 81.3MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 18:58:11,136 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.64ms. Allocated memory is still 136.3MB. Free memory was 81.3MB in the beginning and 79.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:58:11,136 INFO L158 Benchmark]: Boogie Preprocessor took 23.20ms. Allocated memory is still 136.3MB. Free memory was 79.8MB in the beginning and 78.9MB in the end (delta: 893.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:58:11,137 INFO L158 Benchmark]: RCFGBuilder took 332.59ms. Allocated memory is still 136.3MB. Free memory was 78.9MB in the beginning and 68.7MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 18:58:11,137 INFO L158 Benchmark]: TraceAbstraction took 2593.32ms. Allocated memory was 136.3MB in the beginning and 195.0MB in the end (delta: 58.7MB). Free memory was 68.2MB in the beginning and 113.3MB in the end (delta: -45.1MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. [2023-11-21 18:58:11,138 INFO L158 Benchmark]: Witness Printer took 101.00ms. Allocated memory is still 195.0MB. Free memory was 113.3MB in the beginning and 109.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 18:58:11,140 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 136.3MB. Free memory is still 82.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 199.39ms. Allocated memory is still 136.3MB. Free memory was 90.7MB in the beginning and 81.3MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.64ms. Allocated memory is still 136.3MB. Free memory was 81.3MB in the beginning and 79.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.20ms. Allocated memory is still 136.3MB. Free memory was 79.8MB in the beginning and 78.9MB in the end (delta: 893.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 332.59ms. Allocated memory is still 136.3MB. Free memory was 78.9MB in the beginning and 68.7MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2593.32ms. Allocated memory was 136.3MB in the beginning and 195.0MB in the end (delta: 58.7MB). Free memory was 68.2MB in the beginning and 113.3MB in the end (delta: -45.1MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. * Witness Printer took 101.00ms. Allocated memory is still 195.0MB. Free memory was 113.3MB in the beginning and 109.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 2.5s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 35 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 35 mSDsluCounter, 23 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 82 IncrementalHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 16 mSDtfsCounter, 82 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 15 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=3, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 6 NumberOfFragments, 43 HoareAnnotationTreeSize, 2 FomulaSimplifications, 92 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 51 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 252 SizeOfPredicates, 4 NumberOfNonLiveVariables, 22 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 2/6 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: 0.4s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 6, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 17, TOOLS_POST_TIME: 0.3s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 17, TOOLS_QUANTIFIERELIM_TIME: 0.3s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 31, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 0, DOMAIN_JOIN_TIME: 0.0s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 1, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 2, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 6, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME: 0.2s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.2s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 2, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, 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: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 51, DAG_COMPRESSION_RETAINED_NODES: 26, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (((((x == y) && (z <= x)) && (0 <= (z + 2147483648))) && (z <= 2147483646)) && (y <= 2147483647)) - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: ((((((z <= 2147483647) && (0 <= (z + 2147483648))) && (x <= 2147483647)) && (0 <= (x + 2147483648))) && (0 <= (y + 2147483648))) && (y <= 2147483647)) RESULT: Ultimate proved your program to be correct! [2023-11-21 18:58:11,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11e2b3c0-a3d6-4d6b-b5ca-40517bf1d209/bin/utaipan-verify-QoSU8krkJ5/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