./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-restricted-15/MinusUserDefined.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 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_aef165f1-ff73-4fd9-87d8-da86ad46da28/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef165f1-ff73-4fd9-87d8-da86ad46da28/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef165f1-ff73-4fd9-87d8-da86ad46da28/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef165f1-ff73-4fd9-87d8-da86ad46da28/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-restricted-15/MinusUserDefined.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef165f1-ff73-4fd9-87d8-da86ad46da28/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef165f1-ff73-4fd9-87d8-da86ad46da28/bin/utaipan-verify-YMUCfTKeje --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 096bafbba8d51323312e8aef69baa45c66c17c65b2ec8717873d6ff292690721 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:06:18,018 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:06:18,125 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef165f1-ff73-4fd9-87d8-da86ad46da28/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-64bit-Taipan_Default.epf [2024-11-09 05:06:18,137 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:06:18,141 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:06:18,198 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:06:18,201 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:06:18,202 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:06:18,203 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:06:18,204 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:06:18,205 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:06:18,205 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:06:18,206 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:06:18,210 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:06:18,210 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:06:18,211 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:06:18,211 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:06:18,212 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:06:18,212 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:06:18,213 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:06:18,213 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:06:18,217 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:06:18,218 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:06:18,219 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:06:18,219 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:06:18,220 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:06:18,220 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:06:18,221 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:06:18,223 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:06:18,223 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:06:18,224 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 05:06:18,224 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 05:06:18,225 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:06:18,225 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:06:18,226 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:06:18,227 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:06:18,228 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:06:18,228 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:06:18,229 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:06:18,229 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:06:18,229 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:06:18,230 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:06:18,230 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:06:18,230 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:06:18,231 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:06:18,231 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:06:18,232 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_aef165f1-ff73-4fd9-87d8-da86ad46da28/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef165f1-ff73-4fd9-87d8-da86ad46da28/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 096bafbba8d51323312e8aef69baa45c66c17c65b2ec8717873d6ff292690721 [2024-11-09 05:06:18,592 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:06:18,630 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:06:18,634 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:06:18,635 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:06:18,637 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:06:18,639 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef165f1-ff73-4fd9-87d8-da86ad46da28/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/termination-restricted-15/MinusUserDefined.c Unable to find full path for "g++" [2024-11-09 05:06:21,146 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:06:21,399 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:06:21,400 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef165f1-ff73-4fd9-87d8-da86ad46da28/sv-benchmarks/c/termination-restricted-15/MinusUserDefined.c [2024-11-09 05:06:21,409 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef165f1-ff73-4fd9-87d8-da86ad46da28/bin/utaipan-verify-YMUCfTKeje/data/aa9e62ce1/964e0bd48fce4b5f96fe01fdf908754a/FLAG473593c51 [2024-11-09 05:06:21,428 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef165f1-ff73-4fd9-87d8-da86ad46da28/bin/utaipan-verify-YMUCfTKeje/data/aa9e62ce1/964e0bd48fce4b5f96fe01fdf908754a [2024-11-09 05:06:21,433 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:06:21,437 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:06:21,439 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:06:21,440 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:06:21,448 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:06:21,449 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:06:21" (1/1) ... [2024-11-09 05:06:21,450 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32f45604 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:06:21, skipping insertion in model container [2024-11-09 05:06:21,451 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:06:21" (1/1) ... [2024-11-09 05:06:21,477 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:06:21,723 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:06:21,734 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:06:21,751 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:06:21,772 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:06:21,772 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:06:21 WrapperNode [2024-11-09 05:06:21,773 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:06:21,774 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:06:21,775 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:06:21,775 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:06:21,784 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:06:21" (1/1) ... [2024-11-09 05:06:21,789 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:06:21" (1/1) ... [2024-11-09 05:06:21,814 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 43 [2024-11-09 05:06:21,814 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:06:21,815 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:06:21,815 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:06:21,815 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:06:21,827 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:06:21" (1/1) ... [2024-11-09 05:06:21,828 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:06:21" (1/1) ... [2024-11-09 05:06:21,830 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:06:21" (1/1) ... [2024-11-09 05:06:21,831 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:06:21" (1/1) ... [2024-11-09 05:06:21,834 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:06:21" (1/1) ... [2024-11-09 05:06:21,841 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:06:21" (1/1) ... [2024-11-09 05:06:21,843 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:06:21" (1/1) ... [2024-11-09 05:06:21,844 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:06:21" (1/1) ... [2024-11-09 05:06:21,845 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:06:21,847 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:06:21,847 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:06:21,847 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:06:21,848 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:06:21" (1/1) ... [2024-11-09 05:06:21,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:06:21,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef165f1-ff73-4fd9-87d8-da86ad46da28/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:06:21,893 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef165f1-ff73-4fd9-87d8-da86ad46da28/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:06:21,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef165f1-ff73-4fd9-87d8-da86ad46da28/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:06:21,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:06:21,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:06:22,018 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:06:22,021 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:06:22,233 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-09 05:06:22,237 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:06:22,264 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:06:22,265 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 05:06:22,265 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:06:22 BoogieIcfgContainer [2024-11-09 05:06:22,265 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:06:22,269 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:06:22,269 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:06:22,274 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:06:22,274 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:06:21" (1/3) ... [2024-11-09 05:06:22,275 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24518c16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:06:22, skipping insertion in model container [2024-11-09 05:06:22,276 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:06:21" (2/3) ... [2024-11-09 05:06:22,276 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24518c16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:06:22, skipping insertion in model container [2024-11-09 05:06:22,276 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:06:22" (3/3) ... [2024-11-09 05:06:22,278 INFO L112 eAbstractionObserver]: Analyzing ICFG MinusUserDefined.c [2024-11-09 05:06:22,302 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:06:22,303 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-09 05:06:22,383 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:06:22,391 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;@59f26084, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:06:22,392 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-11-09 05:06:22,397 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 20 states have (on average 1.9) internal successors, (38), 32 states have internal predecessors, (38), 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) [2024-11-09 05:06:22,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-09 05:06:22,404 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:06:22,405 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-09 05:06:22,406 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 05:06:22,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:06:22,414 INFO L85 PathProgramCache]: Analyzing trace with hash 2925637, now seen corresponding path program 1 times [2024-11-09 05:06:22,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:06:22,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663201834] [2024-11-09 05:06:22,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:06:22,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:06:22,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:06:22,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:06:22,667 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:06:22,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663201834] [2024-11-09 05:06:22,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663201834] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:06:22,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:06:22,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:06:22,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944529344] [2024-11-09 05:06:22,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:06:22,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:06:22,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:06:22,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:06:22,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:06:22,748 INFO L87 Difference]: Start difference. First operand has 33 states, 20 states have (on average 1.9) internal successors, (38), 32 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:06:22,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:06:22,867 INFO L93 Difference]: Finished difference Result 37 states and 43 transitions. [2024-11-09 05:06:22,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:06:22,871 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-09 05:06:22,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:06:22,882 INFO L225 Difference]: With dead ends: 37 [2024-11-09 05:06:22,883 INFO L226 Difference]: Without dead ends: 31 [2024-11-09 05:06:22,886 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 [2024-11-09 05:06:22,891 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 16 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:06:22,892 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 28 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:06:22,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-11-09 05:06:22,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2024-11-09 05:06:22,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 19 states have (on average 1.736842105263158) internal successors, (33), 28 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:06:22,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2024-11-09 05:06:22,930 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 4 [2024-11-09 05:06:22,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:06:22,930 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2024-11-09 05:06:22,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:06:22,931 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2024-11-09 05:06:22,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-09 05:06:22,932 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:06:22,932 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-09 05:06:22,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 05:06:22,933 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 05:06:22,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:06:22,934 INFO L85 PathProgramCache]: Analyzing trace with hash 91155655, now seen corresponding path program 1 times [2024-11-09 05:06:22,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:06:22,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394636517] [2024-11-09 05:06:22,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:06:22,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:06:22,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:06:22,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:06:22,985 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:06:22,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394636517] [2024-11-09 05:06:22,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394636517] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:06:22,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:06:22,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 05:06:22,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658142504] [2024-11-09 05:06:22,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:06:22,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:06:22,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:06:22,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:06:22,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:06:22,990 INFO L87 Difference]: Start difference. First operand 29 states and 33 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) [2024-11-09 05:06:23,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:06:23,065 INFO L93 Difference]: Finished difference Result 40 states and 47 transitions. [2024-11-09 05:06:23,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:06:23,066 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 [2024-11-09 05:06:23,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:06:23,069 INFO L225 Difference]: With dead ends: 40 [2024-11-09 05:06:23,069 INFO L226 Difference]: Without dead ends: 39 [2024-11-09 05:06:23,070 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 [2024-11-09 05:06:23,072 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 20 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:06:23,073 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 19 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:06:23,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-11-09 05:06:23,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2024-11-09 05:06:23,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 27 states have (on average 1.7037037037037037) internal successors, (46), 36 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:06:23,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 46 transitions. [2024-11-09 05:06:23,089 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 46 transitions. Word has length 5 [2024-11-09 05:06:23,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:06:23,089 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 46 transitions. [2024-11-09 05:06:23,090 INFO L472 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) [2024-11-09 05:06:23,090 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 46 transitions. [2024-11-09 05:06:23,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-09 05:06:23,090 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:06:23,091 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-09 05:06:23,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 05:06:23,091 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 05:06:23,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:06:23,093 INFO L85 PathProgramCache]: Analyzing trace with hash 90694792, now seen corresponding path program 1 times [2024-11-09 05:06:23,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:06:23,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745988383] [2024-11-09 05:06:23,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:06:23,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:06:23,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:06:23,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:06:23,183 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:06:23,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745988383] [2024-11-09 05:06:23,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745988383] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:06:23,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:06:23,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 05:06:23,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995484876] [2024-11-09 05:06:23,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:06:23,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:06:23,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:06:23,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:06:23,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:06:23,191 INFO L87 Difference]: Start difference. First operand 37 states and 46 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) [2024-11-09 05:06:23,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:06:23,254 INFO L93 Difference]: Finished difference Result 37 states and 46 transitions. [2024-11-09 05:06:23,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:06:23,257 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 [2024-11-09 05:06:23,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:06:23,258 INFO L225 Difference]: With dead ends: 37 [2024-11-09 05:06:23,259 INFO L226 Difference]: Without dead ends: 35 [2024-11-09 05:06:23,259 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 [2024-11-09 05:06:23,263 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 25 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:06:23,264 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 16 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:06:23,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-11-09 05:06:23,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2024-11-09 05:06:23,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 34 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:06:23,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 44 transitions. [2024-11-09 05:06:23,283 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 44 transitions. Word has length 5 [2024-11-09 05:06:23,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:06:23,283 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 44 transitions. [2024-11-09 05:06:23,284 INFO L472 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) [2024-11-09 05:06:23,284 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 44 transitions. [2024-11-09 05:06:23,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-09 05:06:23,284 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:06:23,285 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-09 05:06:23,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 05:06:23,287 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 05:06:23,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:06:23,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1469141927, now seen corresponding path program 1 times [2024-11-09 05:06:23,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:06:23,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032156357] [2024-11-09 05:06:23,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:06:23,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:06:23,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:06:23,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:06:23,417 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:06:23,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032156357] [2024-11-09 05:06:23,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032156357] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:06:23,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:06:23,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:06:23,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288241789] [2024-11-09 05:06:23,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:06:23,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:06:23,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:06:23,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:06:23,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:06:23,422 INFO L87 Difference]: Start difference. First operand 35 states and 44 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) [2024-11-09 05:06:23,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:06:23,525 INFO L93 Difference]: Finished difference Result 35 states and 44 transitions. [2024-11-09 05:06:23,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:06:23,526 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 [2024-11-09 05:06:23,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:06:23,527 INFO L225 Difference]: With dead ends: 35 [2024-11-09 05:06:23,528 INFO L226 Difference]: Without dead ends: 34 [2024-11-09 05:06:23,528 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 [2024-11-09 05:06:23,530 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:06:23,531 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 37 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:06:23,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-11-09 05:06:23,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2024-11-09 05:06:23,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 27 states have (on average 1.5555555555555556) internal successors, (42), 33 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:06:23,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2024-11-09 05:06:23,541 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 6 [2024-11-09 05:06:23,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:06:23,542 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2024-11-09 05:06:23,542 INFO L472 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) [2024-11-09 05:06:23,543 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2024-11-09 05:06:23,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-09 05:06:23,543 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:06:23,544 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-09 05:06:23,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 05:06:23,545 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 05:06:23,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:06:23,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1483428697, now seen corresponding path program 1 times [2024-11-09 05:06:23,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:06:23,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404248204] [2024-11-09 05:06:23,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:06:23,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:06:23,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:06:23,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:06:23,628 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:06:23,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404248204] [2024-11-09 05:06:23,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404248204] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:06:23,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:06:23,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:06:23,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748265163] [2024-11-09 05:06:23,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:06:23,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:06:23,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:06:23,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:06:23,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:06:23,633 INFO L87 Difference]: Start difference. First operand 34 states and 42 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:06:23,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:06:23,713 INFO L93 Difference]: Finished difference Result 43 states and 52 transitions. [2024-11-09 05:06:23,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:06:23,713 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-09 05:06:23,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:06:23,714 INFO L225 Difference]: With dead ends: 43 [2024-11-09 05:06:23,715 INFO L226 Difference]: Without dead ends: 41 [2024-11-09 05:06:23,715 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 [2024-11-09 05:06:23,717 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 15 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:06:23,718 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 29 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:06:23,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-11-09 05:06:23,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 32. [2024-11-09 05:06:23,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 27 states have (on average 1.4814814814814814) internal successors, (40), 31 states have internal predecessors, (40), 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) [2024-11-09 05:06:23,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 40 transitions. [2024-11-09 05:06:23,726 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 40 transitions. Word has length 6 [2024-11-09 05:06:23,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:06:23,726 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 40 transitions. [2024-11-09 05:06:23,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:06:23,727 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2024-11-09 05:06:23,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-09 05:06:23,728 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:06:23,728 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:06:23,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 05:06:23,729 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 05:06:23,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:06:23,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1701240585, now seen corresponding path program 1 times [2024-11-09 05:06:23,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:06:23,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783022528] [2024-11-09 05:06:23,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:06:23,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:06:23,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:06:23,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:06:23,769 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:06:23,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783022528] [2024-11-09 05:06:23,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783022528] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:06:23,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:06:23,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 05:06:23,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897833953] [2024-11-09 05:06:23,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:06:23,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:06:23,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:06:23,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:06:23,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:06:23,772 INFO L87 Difference]: Start difference. First operand 32 states and 40 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) [2024-11-09 05:06:23,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:06:23,789 INFO L93 Difference]: Finished difference Result 32 states and 40 transitions. [2024-11-09 05:06:23,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:06:23,791 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 [2024-11-09 05:06:23,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:06:23,791 INFO L225 Difference]: With dead ends: 32 [2024-11-09 05:06:23,791 INFO L226 Difference]: Without dead ends: 31 [2024-11-09 05:06:23,792 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 [2024-11-09 05:06:23,793 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 19 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:06:23,794 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 23 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:06:23,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-11-09 05:06:23,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2024-11-09 05:06:23,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 27 states have (on average 1.4074074074074074) internal successors, (38), 30 states have internal predecessors, (38), 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) [2024-11-09 05:06:23,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2024-11-09 05:06:23,802 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 7 [2024-11-09 05:06:23,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:06:23,803 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2024-11-09 05:06:23,803 INFO L472 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) [2024-11-09 05:06:23,803 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2024-11-09 05:06:23,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-09 05:06:23,808 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:06:23,808 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:06:23,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 05:06:23,809 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 05:06:23,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:06:23,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1258350698, now seen corresponding path program 1 times [2024-11-09 05:06:23,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:06:23,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809710328] [2024-11-09 05:06:23,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:06:23,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:06:23,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:06:23,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:06:23,851 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:06:23,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809710328] [2024-11-09 05:06:23,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809710328] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:06:23,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:06:23,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 05:06:23,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743012374] [2024-11-09 05:06:23,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:06:23,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:06:23,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:06:23,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:06:23,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:06:23,854 INFO L87 Difference]: Start difference. First operand 31 states and 38 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) [2024-11-09 05:06:23,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:06:23,896 INFO L93 Difference]: Finished difference Result 31 states and 38 transitions. [2024-11-09 05:06:23,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:06:23,896 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 [2024-11-09 05:06:23,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:06:23,897 INFO L225 Difference]: With dead ends: 31 [2024-11-09 05:06:23,898 INFO L226 Difference]: Without dead ends: 29 [2024-11-09 05:06:23,898 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 [2024-11-09 05:06:23,899 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 15 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:06:23,904 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 9 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:06:23,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2024-11-09 05:06:23,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2024-11-09 05:06:23,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 28 states have internal predecessors, (36), 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) [2024-11-09 05:06:23,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 36 transitions. [2024-11-09 05:06:23,918 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 36 transitions. Word has length 7 [2024-11-09 05:06:23,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:06:23,918 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 36 transitions. [2024-11-09 05:06:23,918 INFO L472 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) [2024-11-09 05:06:23,919 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 36 transitions. [2024-11-09 05:06:23,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 05:06:23,919 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:06:23,919 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:06:23,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 05:06:23,920 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 05:06:23,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:06:23,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1198850651, now seen corresponding path program 1 times [2024-11-09 05:06:23,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:06:23,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572091045] [2024-11-09 05:06:23,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:06:23,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:06:23,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:06:23,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:06:23,979 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:06:23,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572091045] [2024-11-09 05:06:23,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572091045] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:06:23,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:06:23,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 05:06:23,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054086097] [2024-11-09 05:06:23,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:06:23,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:06:23,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:06:23,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:06:23,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:06:23,981 INFO L87 Difference]: Start difference. First operand 29 states and 36 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:06:23,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:06:23,996 INFO L93 Difference]: Finished difference Result 43 states and 51 transitions. [2024-11-09 05:06:24,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:06:24,000 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-09 05:06:24,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:06:24,001 INFO L225 Difference]: With dead ends: 43 [2024-11-09 05:06:24,001 INFO L226 Difference]: Without dead ends: 42 [2024-11-09 05:06:24,001 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 [2024-11-09 05:06:24,002 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 8 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:06:24,003 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 35 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:06:24,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-11-09 05:06:24,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 41. [2024-11-09 05:06:24,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 40 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:06:24,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 49 transitions. [2024-11-09 05:06:24,020 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 49 transitions. Word has length 8 [2024-11-09 05:06:24,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:06:24,021 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 49 transitions. [2024-11-09 05:06:24,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:06:24,021 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2024-11-09 05:06:24,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 05:06:24,022 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:06:24,022 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:06:24,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 05:06:24,027 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 05:06:24,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:06:24,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1774540720, now seen corresponding path program 1 times [2024-11-09 05:06:24,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:06:24,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904484571] [2024-11-09 05:06:24,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:06:24,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:06:24,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:06:24,079 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:06:24,079 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:06:24,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904484571] [2024-11-09 05:06:24,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904484571] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:06:24,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:06:24,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:06:24,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848365620] [2024-11-09 05:06:24,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:06:24,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:06:24,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:06:24,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:06:24,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:06:24,081 INFO L87 Difference]: Start difference. First operand 41 states and 49 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2024-11-09 05:06:24,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:06:24,152 INFO L93 Difference]: Finished difference Result 60 states and 71 transitions. [2024-11-09 05:06:24,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:06:24,160 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 11 [2024-11-09 05:06:24,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:06:24,162 INFO L225 Difference]: With dead ends: 60 [2024-11-09 05:06:24,162 INFO L226 Difference]: Without dead ends: 59 [2024-11-09 05:06:24,162 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 [2024-11-09 05:06:24,163 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 15 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:06:24,165 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 32 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:06:24,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2024-11-09 05:06:24,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 26. [2024-11-09 05:06:24,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.2) internal successors, (30), 25 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:06:24,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2024-11-09 05:06:24,175 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 11 [2024-11-09 05:06:24,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:06:24,176 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2024-11-09 05:06:24,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2024-11-09 05:06:24,176 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2024-11-09 05:06:24,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-09 05:06:24,177 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:06:24,177 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-09 05:06:24,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 05:06:24,178 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 05:06:24,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:06:24,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1708329029, now seen corresponding path program 1 times [2024-11-09 05:06:24,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:06:24,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901180102] [2024-11-09 05:06:24,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:06:24,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:06:24,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:06:24,308 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:06:24,308 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:06:24,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901180102] [2024-11-09 05:06:24,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901180102] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:06:24,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1133223854] [2024-11-09 05:06:24,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:06:24,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:06:24,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef165f1-ff73-4fd9-87d8-da86ad46da28/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:06:24,317 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef165f1-ff73-4fd9-87d8-da86ad46da28/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:06:24,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef165f1-ff73-4fd9-87d8-da86ad46da28/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 05:06:24,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:06:24,384 INFO L255 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:06:24,390 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:06:24,484 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:06:24,484 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:06:24,555 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:06:24,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1133223854] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:06:24,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [729224915] [2024-11-09 05:06:24,582 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2024-11-09 05:06:24,583 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:06:24,587 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:06:24,594 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:06:24,595 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:06:24,947 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:06:25,177 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '924#(and (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 0 (+ 2147483647 |ULTIMATE.start_main_~y~0#1|)) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 1))' at error location [2024-11-09 05:06:25,177 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:06:25,177 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:06:25,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 4 [2024-11-09 05:06:25,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944282281] [2024-11-09 05:06:25,178 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:06:25,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:06:25,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:06:25,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:06:25,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-09 05:06:25,180 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:06:25,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:06:25,227 INFO L93 Difference]: Finished difference Result 63 states and 75 transitions. [2024-11-09 05:06:25,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:06:25,228 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-09 05:06:25,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:06:25,229 INFO L225 Difference]: With dead ends: 63 [2024-11-09 05:06:25,229 INFO L226 Difference]: Without dead ends: 62 [2024-11-09 05:06:25,229 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 31 SyntacticMatches, 4 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-09 05:06:25,230 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 36 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:06:25,231 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 69 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:06:25,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-11-09 05:06:25,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2024-11-09 05:06:25,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 61 states have (on average 1.180327868852459) internal successors, (72), 61 states have internal predecessors, (72), 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) [2024-11-09 05:06:25,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 72 transitions. [2024-11-09 05:06:25,242 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 72 transitions. Word has length 15 [2024-11-09 05:06:25,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:06:25,243 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 72 transitions. [2024-11-09 05:06:25,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:06:25,243 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 72 transitions. [2024-11-09 05:06:25,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-09 05:06:25,244 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:06:25,244 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 1, 1, 1] [2024-11-09 05:06:25,271 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef165f1-ff73-4fd9-87d8-da86ad46da28/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 05:06:25,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef165f1-ff73-4fd9-87d8-da86ad46da28/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-09 05:06:25,446 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 05:06:25,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:06:25,446 INFO L85 PathProgramCache]: Analyzing trace with hash 606895067, now seen corresponding path program 2 times [2024-11-09 05:06:25,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:06:25,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611670601] [2024-11-09 05:06:25,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:06:25,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:06:25,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:06:25,672 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:06:25,673 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:06:25,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611670601] [2024-11-09 05:06:25,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611670601] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:06:25,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1949898108] [2024-11-09 05:06:25,673 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:06:25,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:06:25,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef165f1-ff73-4fd9-87d8-da86ad46da28/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:06:25,676 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef165f1-ff73-4fd9-87d8-da86ad46da28/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:06:25,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef165f1-ff73-4fd9-87d8-da86ad46da28/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 05:06:25,740 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-09 05:06:25,740 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:06:25,741 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 05:06:25,743 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:06:25,863 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:06:25,863 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:06:26,046 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:06:26,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1949898108] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:06:26,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [69974528] [2024-11-09 05:06:26,049 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2024-11-09 05:06:26,050 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:06:26,051 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:06:26,051 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:06:26,052 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:06:26,222 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:06:26,571 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1297#(and (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 0 (+ 2147483647 |ULTIMATE.start_main_~y~0#1|)) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 1))' at error location [2024-11-09 05:06:26,572 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:06:26,572 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:06:26,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-09 05:06:26,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536612431] [2024-11-09 05:06:26,573 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:06:26,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 05:06:26,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:06:26,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 05:06:26,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=211, Unknown=0, NotChecked=0, Total=306 [2024-11-09 05:06:26,575 INFO L87 Difference]: Start difference. First operand 62 states and 72 transitions. Second operand has 12 states, 11 states have (on average 6.545454545454546) internal successors, (72), 11 states have internal predecessors, (72), 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) [2024-11-09 05:06:26,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:06:26,658 INFO L93 Difference]: Finished difference Result 135 states and 162 transitions. [2024-11-09 05:06:26,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 05:06:26,659 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.545454545454546) internal successors, (72), 11 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2024-11-09 05:06:26,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:06:26,660 INFO L225 Difference]: With dead ends: 135 [2024-11-09 05:06:26,660 INFO L226 Difference]: Without dead ends: 134 [2024-11-09 05:06:26,661 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 85 SyntacticMatches, 10 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=95, Invalid=211, Unknown=0, NotChecked=0, Total=306 [2024-11-09 05:06:26,661 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 155 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:06:26,662 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 141 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:06:26,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2024-11-09 05:06:26,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2024-11-09 05:06:26,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 133 states have (on average 1.1729323308270676) internal successors, (156), 133 states have internal predecessors, (156), 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) [2024-11-09 05:06:26,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 156 transitions. [2024-11-09 05:06:26,683 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 156 transitions. Word has length 36 [2024-11-09 05:06:26,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:06:26,684 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 156 transitions. [2024-11-09 05:06:26,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.545454545454546) internal successors, (72), 11 states have internal predecessors, (72), 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) [2024-11-09 05:06:26,684 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 156 transitions. [2024-11-09 05:06:26,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-09 05:06:26,687 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:06:26,687 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 1, 1, 1] [2024-11-09 05:06:26,713 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef165f1-ff73-4fd9-87d8-da86ad46da28/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 05:06:26,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef165f1-ff73-4fd9-87d8-da86ad46da28/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-09 05:06:26,892 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 05:06:26,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:06:26,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1691671067, now seen corresponding path program 3 times [2024-11-09 05:06:26,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:06:26,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820626087] [2024-11-09 05:06:26,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:06:26,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:06:26,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:06:27,391 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 0 proven. 375 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:06:27,391 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:06:27,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820626087] [2024-11-09 05:06:27,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820626087] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:06:27,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1602201331] [2024-11-09 05:06:27,396 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 05:06:27,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:06:27,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef165f1-ff73-4fd9-87d8-da86ad46da28/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:06:27,398 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef165f1-ff73-4fd9-87d8-da86ad46da28/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:06:27,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef165f1-ff73-4fd9-87d8-da86ad46da28/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 05:06:27,505 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 05:06:27,505 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:06:27,506 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 05:06:27,509 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:06:27,711 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 0 proven. 375 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:06:27,711 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:06:28,194 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 0 proven. 375 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:06:28,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1602201331] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:06:28,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1249925466] [2024-11-09 05:06:28,197 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2024-11-09 05:06:28,198 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:06:28,198 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:06:28,198 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:06:28,199 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:06:28,317 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:06:29,131 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2102#(and (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 0 (+ 2147483647 |ULTIMATE.start_main_~y~0#1|)) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 1))' at error location [2024-11-09 05:06:29,132 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:06:29,132 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:06:29,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2024-11-09 05:06:29,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098192786] [2024-11-09 05:06:29,133 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:06:29,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-09 05:06:29,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:06:29,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-09 05:06:29,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=317, Invalid=553, Unknown=0, NotChecked=0, Total=870 [2024-11-09 05:06:29,138 INFO L87 Difference]: Start difference. First operand 134 states and 156 transitions. Second operand has 24 states, 23 states have (on average 6.782608695652174) internal successors, (156), 23 states have internal predecessors, (156), 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) [2024-11-09 05:06:29,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:06:29,338 INFO L93 Difference]: Finished difference Result 279 states and 336 transitions. [2024-11-09 05:06:29,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-09 05:06:29,339 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 6.782608695652174) internal successors, (156), 23 states have internal predecessors, (156), 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 78 [2024-11-09 05:06:29,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:06:29,341 INFO L225 Difference]: With dead ends: 279 [2024-11-09 05:06:29,341 INFO L226 Difference]: Without dead ends: 278 [2024-11-09 05:06:29,342 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 193 SyntacticMatches, 22 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 991 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=317, Invalid=553, Unknown=0, NotChecked=0, Total=870 [2024-11-09 05:06:29,343 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 344 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:06:29,344 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 285 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:06:29,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2024-11-09 05:06:29,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2024-11-09 05:06:29,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 277 states have (on average 1.1696750902527075) internal successors, (324), 277 states have internal predecessors, (324), 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) [2024-11-09 05:06:29,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 324 transitions. [2024-11-09 05:06:29,378 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 324 transitions. Word has length 78 [2024-11-09 05:06:29,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:06:29,379 INFO L471 AbstractCegarLoop]: Abstraction has 278 states and 324 transitions. [2024-11-09 05:06:29,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 6.782608695652174) internal successors, (156), 23 states have internal predecessors, (156), 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) [2024-11-09 05:06:29,380 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 324 transitions. [2024-11-09 05:06:29,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-09 05:06:29,385 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:06:29,385 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 22, 22, 1, 1, 1] [2024-11-09 05:06:29,411 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef165f1-ff73-4fd9-87d8-da86ad46da28/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-09 05:06:29,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef165f1-ff73-4fd9-87d8-da86ad46da28/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-09 05:06:29,586 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 05:06:29,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:06:29,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1837357413, now seen corresponding path program 4 times [2024-11-09 05:06:29,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:06:29,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003242464] [2024-11-09 05:06:29,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:06:29,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:06:29,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:06:30,711 INFO L134 CoverageAnalysis]: Checked inductivity of 1749 backedges. 0 proven. 1749 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:06:30,712 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:06:30,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003242464] [2024-11-09 05:06:30,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003242464] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:06:30,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [399907411] [2024-11-09 05:06:30,713 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 05:06:30,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:06:30,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef165f1-ff73-4fd9-87d8-da86ad46da28/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:06:30,715 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef165f1-ff73-4fd9-87d8-da86ad46da28/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:06:30,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef165f1-ff73-4fd9-87d8-da86ad46da28/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 05:06:30,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:06:30,832 INFO L255 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-09 05:06:30,839 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:06:31,166 INFO L134 CoverageAnalysis]: Checked inductivity of 1749 backedges. 0 proven. 1749 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:06:31,167 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:06:32,640 INFO L134 CoverageAnalysis]: Checked inductivity of 1749 backedges. 0 proven. 1749 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:06:32,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [399907411] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:06:32,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1101435921] [2024-11-09 05:06:32,644 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2024-11-09 05:06:32,644 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:06:32,644 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:06:32,644 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:06:32,645 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:06:32,766 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:06:34,385 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3771#(and (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 0 (+ 2147483647 |ULTIMATE.start_main_~y~0#1|)) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 1))' at error location [2024-11-09 05:06:34,386 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:06:34,386 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:06:34,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 46 [2024-11-09 05:06:34,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503494857] [2024-11-09 05:06:34,387 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:06:34,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-11-09 05:06:34,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:06:34,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-11-09 05:06:34,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1193, Invalid=1669, Unknown=0, NotChecked=0, Total=2862 [2024-11-09 05:06:34,392 INFO L87 Difference]: Start difference. First operand 278 states and 324 transitions. Second operand has 48 states, 47 states have (on average 6.8936170212765955) internal successors, (324), 47 states have internal predecessors, (324), 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) [2024-11-09 05:06:34,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:06:34,945 INFO L93 Difference]: Finished difference Result 567 states and 684 transitions. [2024-11-09 05:06:34,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-11-09 05:06:34,946 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 6.8936170212765955) internal successors, (324), 47 states have internal predecessors, (324), 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 162 [2024-11-09 05:06:34,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:06:34,949 INFO L225 Difference]: With dead ends: 567 [2024-11-09 05:06:34,949 INFO L226 Difference]: Without dead ends: 566 [2024-11-09 05:06:34,951 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 507 GetRequests, 409 SyntacticMatches, 46 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3739 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1193, Invalid=1669, Unknown=0, NotChecked=0, Total=2862 [2024-11-09 05:06:34,953 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 1135 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1135 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:06:34,953 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1135 Valid, 573 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:06:34,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2024-11-09 05:06:34,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 566. [2024-11-09 05:06:34,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 565 states have (on average 1.168141592920354) internal successors, (660), 565 states have internal predecessors, (660), 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) [2024-11-09 05:06:34,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 660 transitions. [2024-11-09 05:06:34,998 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 660 transitions. Word has length 162 [2024-11-09 05:06:34,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:06:34,999 INFO L471 AbstractCegarLoop]: Abstraction has 566 states and 660 transitions. [2024-11-09 05:06:34,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 6.8936170212765955) internal successors, (324), 47 states have internal predecessors, (324), 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) [2024-11-09 05:06:35,000 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 660 transitions. [2024-11-09 05:06:35,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2024-11-09 05:06:35,007 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:06:35,007 INFO L215 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 47, 46, 46, 1, 1, 1] [2024-11-09 05:06:35,033 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef165f1-ff73-4fd9-87d8-da86ad46da28/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-09 05:06:35,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef165f1-ff73-4fd9-87d8-da86ad46da28/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-09 05:06:35,212 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 05:06:35,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:06:35,213 INFO L85 PathProgramCache]: Analyzing trace with hash -208339045, now seen corresponding path program 5 times [2024-11-09 05:06:35,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:06:35,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33762778] [2024-11-09 05:06:35,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:06:35,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:06:35,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:06:38,993 INFO L134 CoverageAnalysis]: Checked inductivity of 7521 backedges. 0 proven. 7521 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:06:38,994 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:06:38,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33762778] [2024-11-09 05:06:38,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33762778] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:06:38,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2045318619] [2024-11-09 05:06:38,995 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:06:38,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:06:38,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef165f1-ff73-4fd9-87d8-da86ad46da28/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:06:38,997 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef165f1-ff73-4fd9-87d8-da86ad46da28/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:06:38,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef165f1-ff73-4fd9-87d8-da86ad46da28/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 05:06:39,201 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 47 check-sat command(s) [2024-11-09 05:06:39,201 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:06:39,205 INFO L255 TraceCheckSpWp]: Trace formula consists of 523 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-09 05:06:39,220 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:06:39,907 INFO L134 CoverageAnalysis]: Checked inductivity of 7521 backedges. 0 proven. 7521 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:06:39,908 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:06:44,101 INFO L134 CoverageAnalysis]: Checked inductivity of 7521 backedges. 0 proven. 7521 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:06:44,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2045318619] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:06:44,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [335846719] [2024-11-09 05:06:44,103 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2024-11-09 05:06:44,104 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:06:44,104 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:06:44,104 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:06:44,105 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:06:44,199 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:06:49,386 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7168#(and (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 0 (+ 2147483647 |ULTIMATE.start_main_~y~0#1|)) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 1))' at error location [2024-11-09 05:06:49,387 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:06:49,387 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:06:49,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 94 [2024-11-09 05:06:49,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667719882] [2024-11-09 05:06:49,388 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:06:49,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2024-11-09 05:06:49,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:06:49,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2024-11-09 05:06:49,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4673, Invalid=5629, Unknown=0, NotChecked=0, Total=10302 [2024-11-09 05:06:49,398 INFO L87 Difference]: Start difference. First operand 566 states and 660 transitions. Second operand has 96 states, 95 states have (on average 6.947368421052632) internal successors, (660), 95 states have internal predecessors, (660), 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) [2024-11-09 05:06:52,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:06:52,333 INFO L93 Difference]: Finished difference Result 1143 states and 1380 transitions. [2024-11-09 05:06:52,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2024-11-09 05:06:52,334 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 6.947368421052632) internal successors, (660), 95 states have internal predecessors, (660), 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 330 [2024-11-09 05:06:52,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:06:52,339 INFO L225 Difference]: With dead ends: 1143 [2024-11-09 05:06:52,339 INFO L226 Difference]: Without dead ends: 1142 [2024-11-09 05:06:52,343 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1035 GetRequests, 841 SyntacticMatches, 94 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14419 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=4673, Invalid=5629, Unknown=0, NotChecked=0, Total=10302 [2024-11-09 05:06:52,344 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 2633 mSDsluCounter, 1128 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2633 SdHoareTripleChecker+Valid, 1149 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:06:52,345 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2633 Valid, 1149 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 05:06:52,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1142 states. [2024-11-09 05:06:52,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1142 to 1142. [2024-11-09 05:06:52,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1142 states, 1141 states have (on average 1.1673970201577564) internal successors, (1332), 1141 states have internal predecessors, (1332), 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) [2024-11-09 05:06:52,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1142 states to 1142 states and 1332 transitions. [2024-11-09 05:06:52,413 INFO L78 Accepts]: Start accepts. Automaton has 1142 states and 1332 transitions. Word has length 330 [2024-11-09 05:06:52,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:06:52,415 INFO L471 AbstractCegarLoop]: Abstraction has 1142 states and 1332 transitions. [2024-11-09 05:06:52,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 6.947368421052632) internal successors, (660), 95 states have internal predecessors, (660), 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) [2024-11-09 05:06:52,416 INFO L276 IsEmpty]: Start isEmpty. Operand 1142 states and 1332 transitions. [2024-11-09 05:06:52,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 667 [2024-11-09 05:06:52,447 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:06:52,447 INFO L215 NwaCegarLoop]: trace histogram [95, 95, 95, 95, 95, 94, 94, 1, 1, 1] [2024-11-09 05:06:52,473 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef165f1-ff73-4fd9-87d8-da86ad46da28/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-09 05:06:52,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef165f1-ff73-4fd9-87d8-da86ad46da28/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-09 05:06:52,652 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 05:06:52,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:06:52,653 INFO L85 PathProgramCache]: Analyzing trace with hash -2005945957, now seen corresponding path program 6 times [2024-11-09 05:06:52,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:06:52,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943514317] [2024-11-09 05:06:52,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:06:52,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:06:52,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:07:03,648 INFO L134 CoverageAnalysis]: Checked inductivity of 31161 backedges. 0 proven. 31161 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:07:03,649 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:07:03,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943514317] [2024-11-09 05:07:03,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943514317] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:07:03,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1140535370] [2024-11-09 05:07:03,650 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 05:07:03,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:07:03,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef165f1-ff73-4fd9-87d8-da86ad46da28/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:07:03,655 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef165f1-ff73-4fd9-87d8-da86ad46da28/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:07:03,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef165f1-ff73-4fd9-87d8-da86ad46da28/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 05:07:03,901 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 05:07:03,901 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:07:03,909 INFO L255 TraceCheckSpWp]: Trace formula consists of 1051 conjuncts, 96 conjuncts are in the unsatisfiable core [2024-11-09 05:07:03,920 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:07:04,957 INFO L134 CoverageAnalysis]: Checked inductivity of 31161 backedges. 0 proven. 31161 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:07:04,958 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:07:19,767 INFO L134 CoverageAnalysis]: Checked inductivity of 31161 backedges. 0 proven. 31161 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:07:19,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1140535370] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:07:19,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1397704220] [2024-11-09 05:07:19,771 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2024-11-09 05:07:19,771 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:07:19,771 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:07:19,772 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:07:19,772 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:07:19,864 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:07:38,045 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '14021#(and (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 0 (+ 2147483647 |ULTIMATE.start_main_~y~0#1|)) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 1))' at error location [2024-11-09 05:07:38,045 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:07:38,045 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:07:38,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 95, 95] total 190 [2024-11-09 05:07:38,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759629242] [2024-11-09 05:07:38,046 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:07:38,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2024-11-09 05:07:38,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:07:38,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2024-11-09 05:07:38,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18545, Invalid=20461, Unknown=0, NotChecked=0, Total=39006 [2024-11-09 05:07:38,067 INFO L87 Difference]: Start difference. First operand 1142 states and 1332 transitions. Second operand has 192 states, 191 states have (on average 6.973821989528796) internal successors, (1332), 191 states have internal predecessors, (1332), 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) [2024-11-09 05:08:17,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:08:17,866 INFO L93 Difference]: Finished difference Result 2295 states and 2772 transitions. [2024-11-09 05:08:17,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2024-11-09 05:08:17,867 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 6.973821989528796) internal successors, (1332), 191 states have internal predecessors, (1332), 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 666 [2024-11-09 05:08:17,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:08:17,877 INFO L225 Difference]: With dead ends: 2295 [2024-11-09 05:08:17,877 INFO L226 Difference]: Without dead ends: 2294 [2024-11-09 05:08:17,883 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2091 GetRequests, 1705 SyntacticMatches, 190 SemanticMatches, 196 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56515 ImplicationChecksByTransitivity, 36.5s TimeCoverageRelationStatistics Valid=18545, Invalid=20461, Unknown=0, NotChecked=0, Total=39006 [2024-11-09 05:08:17,884 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 6749 mSDsluCounter, 2280 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6749 SdHoareTripleChecker+Valid, 2301 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:08:17,885 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6749 Valid, 2301 Invalid, 389 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 05:08:17,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2294 states. [2024-11-09 05:08:18,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2294 to 2294. [2024-11-09 05:08:18,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2294 states, 2293 states have (on average 1.167030091583079) internal successors, (2676), 2293 states have internal predecessors, (2676), 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) [2024-11-09 05:08:18,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2294 states to 2294 states and 2676 transitions. [2024-11-09 05:08:18,018 INFO L78 Accepts]: Start accepts. Automaton has 2294 states and 2676 transitions. Word has length 666 [2024-11-09 05:08:18,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:08:18,019 INFO L471 AbstractCegarLoop]: Abstraction has 2294 states and 2676 transitions. [2024-11-09 05:08:18,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 6.973821989528796) internal successors, (1332), 191 states have internal predecessors, (1332), 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) [2024-11-09 05:08:18,021 INFO L276 IsEmpty]: Start isEmpty. Operand 2294 states and 2676 transitions. [2024-11-09 05:08:18,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1339 [2024-11-09 05:08:18,115 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:08:18,115 INFO L215 NwaCegarLoop]: trace histogram [191, 191, 191, 191, 191, 190, 190, 1, 1, 1] [2024-11-09 05:08:18,143 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef165f1-ff73-4fd9-87d8-da86ad46da28/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-09 05:08:18,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef165f1-ff73-4fd9-87d8-da86ad46da28/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:08:18,320 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 05:08:18,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:08:18,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1489573275, now seen corresponding path program 7 times [2024-11-09 05:08:18,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:08:18,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565136303] [2024-11-09 05:08:18,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:08:18,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:08:18,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:09:06,240 INFO L134 CoverageAnalysis]: Checked inductivity of 126825 backedges. 0 proven. 126825 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:09:06,241 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:09:06,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565136303] [2024-11-09 05:09:06,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565136303] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:09:06,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [927947156] [2024-11-09 05:09:06,241 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 05:09:06,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:09:06,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef165f1-ff73-4fd9-87d8-da86ad46da28/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:09:06,244 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef165f1-ff73-4fd9-87d8-da86ad46da28/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:09:06,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef165f1-ff73-4fd9-87d8-da86ad46da28/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 05:09:06,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:09:06,688 INFO L255 TraceCheckSpWp]: Trace formula consists of 2107 conjuncts, 192 conjuncts are in the unsatisfiable core [2024-11-09 05:09:06,709 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:09:08,722 INFO L134 CoverageAnalysis]: Checked inductivity of 126825 backedges. 0 proven. 126825 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:09:08,722 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:10:02,710 INFO L134 CoverageAnalysis]: Checked inductivity of 126825 backedges. 0 proven. 126825 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:10:02,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [927947156] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:10:02,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1829315671] [2024-11-09 05:10:02,714 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2024-11-09 05:10:02,714 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:10:02,714 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:10:02,714 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:10:02,715 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:10:02,786 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:11:11,215 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '27786#(and (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 0 (+ 2147483647 |ULTIMATE.start_main_~y~0#1|)) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 1))' at error location [2024-11-09 05:11:11,216 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:11:11,216 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:11:11,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [191, 191, 191] total 382 [2024-11-09 05:11:11,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431937258] [2024-11-09 05:11:11,217 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:11:11,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2024-11-09 05:11:11,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:11:11,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2024-11-09 05:11:11,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73937, Invalid=77773, Unknown=0, NotChecked=0, Total=151710 [2024-11-09 05:11:11,259 INFO L87 Difference]: Start difference. First operand 2294 states and 2676 transitions. Second operand has 384 states, 383 states have (on average 6.986945169712794) internal successors, (2676), 383 states have internal predecessors, (2676), 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)