./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-2.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bb0a504b43b0de742fcc89ebbe9d313056bb1824edece6c56238a649b6f48626 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 20:22:57,849 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 20:22:57,901 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-11 20:22:57,908 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 20:22:57,912 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 20:22:57,946 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 20:22:57,951 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 20:22:57,954 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 20:22:57,955 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 20:22:57,955 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 20:22:57,955 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 20:22:57,955 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 20:22:57,969 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 20:22:57,969 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 20:22:57,969 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 20:22:57,969 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 20:22:57,970 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 20:22:57,970 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 20:22:57,970 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 20:22:57,970 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 20:22:57,970 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 20:22:57,974 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 20:22:57,974 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 20:22:57,975 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 20:22:57,975 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 20:22:57,975 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-11 20:22:57,975 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 20:22:57,975 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 20:22:57,975 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 20:22:57,975 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 20:22:57,976 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 20:22:57,976 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 20:22:57,976 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 20:22:57,976 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 20:22:57,976 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 20:22:57,976 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 20:22:57,976 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 20:22:57,976 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 20:22:57,977 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 20:22:57,977 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 20:22:57,977 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 20:22:57,981 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 20:22:57,981 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 20:22:57,981 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 20:22:57,981 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb0a504b43b0de742fcc89ebbe9d313056bb1824edece6c56238a649b6f48626 [2024-10-11 20:22:58,168 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 20:22:58,192 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 20:22:58,194 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 20:22:58,196 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 20:22:58,197 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 20:22:58,198 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-2.i [2024-10-11 20:22:59,694 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 20:22:59,974 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 20:22:59,975 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-2.i [2024-10-11 20:22:59,993 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/2b81b0cda/83922c41d3bf46f8825b973937ef1627/FLAG6cde48032 [2024-10-11 20:23:00,006 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/2b81b0cda/83922c41d3bf46f8825b973937ef1627 [2024-10-11 20:23:00,013 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 20:23:00,018 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 20:23:00,019 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 20:23:00,019 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 20:23:00,023 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 20:23:00,024 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 08:23:00" (1/1) ... [2024-10-11 20:23:00,025 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6928a43d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:23:00, skipping insertion in model container [2024-10-11 20:23:00,025 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 08:23:00" (1/1) ... [2024-10-11 20:23:00,056 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 20:23:00,359 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 20:23:00,375 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 20:23:00,506 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 20:23:00,549 INFO L204 MainTranslator]: Completed translation [2024-10-11 20:23:00,549 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:23:00 WrapperNode [2024-10-11 20:23:00,550 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 20:23:00,550 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 20:23:00,551 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 20:23:00,551 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 20:23:00,556 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:23:00" (1/1) ... [2024-10-11 20:23:00,574 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:23:00" (1/1) ... [2024-10-11 20:23:00,601 INFO L138 Inliner]: procedures = 166, calls = 80, calls flagged for inlining = 24, calls inlined = 6, statements flattened = 102 [2024-10-11 20:23:00,601 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 20:23:00,602 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 20:23:00,602 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 20:23:00,602 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 20:23:00,610 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:23:00" (1/1) ... [2024-10-11 20:23:00,610 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:23:00" (1/1) ... [2024-10-11 20:23:00,612 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:23:00" (1/1) ... [2024-10-11 20:23:00,635 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 3 writes are split as follows [0, 3]. [2024-10-11 20:23:00,636 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:23:00" (1/1) ... [2024-10-11 20:23:00,636 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:23:00" (1/1) ... [2024-10-11 20:23:00,641 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:23:00" (1/1) ... [2024-10-11 20:23:00,648 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:23:00" (1/1) ... [2024-10-11 20:23:00,652 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:23:00" (1/1) ... [2024-10-11 20:23:00,653 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:23:00" (1/1) ... [2024-10-11 20:23:00,658 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 20:23:00,658 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 20:23:00,658 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 20:23:00,658 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 20:23:00,662 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:23:00" (1/1) ... [2024-10-11 20:23:00,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 20:23:00,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:23:00,691 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 20:23:00,699 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 20:23:00,732 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-10-11 20:23:00,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-10-11 20:23:00,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-11 20:23:00,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 20:23:00,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-11 20:23:00,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-11 20:23:00,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-11 20:23:00,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-11 20:23:00,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 20:23:00,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-11 20:23:00,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-10-11 20:23:00,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 20:23:00,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 20:23:00,849 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 20:23:00,851 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 20:23:00,995 INFO L? ?]: Removed 41 outVars from TransFormulas that were not future-live. [2024-10-11 20:23:00,995 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 20:23:01,020 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 20:23:01,020 INFO L314 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-11 20:23:01,021 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 08:23:01 BoogieIcfgContainer [2024-10-11 20:23:01,024 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 20:23:01,025 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 20:23:01,026 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 20:23:01,029 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 20:23:01,029 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 08:23:00" (1/3) ... [2024-10-11 20:23:01,029 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21554963 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 08:23:01, skipping insertion in model container [2024-10-11 20:23:01,030 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:23:00" (2/3) ... [2024-10-11 20:23:01,030 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21554963 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 08:23:01, skipping insertion in model container [2024-10-11 20:23:01,030 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 08:23:01" (3/3) ... [2024-10-11 20:23:01,031 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test17_2-2.i [2024-10-11 20:23:01,045 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 20:23:01,045 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2024-10-11 20:23:01,089 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 20:23:01,097 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5e890896, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 20:23:01,097 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-10-11 20:23:01,101 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 31 states have (on average 1.7419354838709677) internal successors, (54), 41 states have internal predecessors, (54), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-11 20:23:01,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-11 20:23:01,106 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:23:01,106 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:23:01,107 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-11 20:23:01,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:23:01,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1771869929, now seen corresponding path program 1 times [2024-10-11 20:23:01,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:23:01,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745122751] [2024-10-11 20:23:01,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:23:01,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:23:01,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:01,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 20:23:01,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:01,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:23:01,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:23:01,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745122751] [2024-10-11 20:23:01,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745122751] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:23:01,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:23:01,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 20:23:01,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458181514] [2024-10-11 20:23:01,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:23:01,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 20:23:01,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:23:01,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 20:23:01,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 20:23:01,331 INFO L87 Difference]: Start difference. First operand has 45 states, 31 states have (on average 1.7419354838709677) internal successors, (54), 41 states have internal predecessors, (54), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 20:23:01,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:23:01,387 INFO L93 Difference]: Finished difference Result 88 states and 113 transitions. [2024-10-11 20:23:01,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 20:23:01,390 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2024-10-11 20:23:01,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:23:01,395 INFO L225 Difference]: With dead ends: 88 [2024-10-11 20:23:01,395 INFO L226 Difference]: Without dead ends: 44 [2024-10-11 20:23:01,398 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 20:23:01,400 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 3 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 20:23:01,400 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 90 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 20:23:01,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-10-11 20:23:01,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2024-10-11 20:23:01,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 29 states have (on average 1.5517241379310345) internal successors, (45), 38 states have internal predecessors, (45), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-11 20:23:01,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2024-10-11 20:23:01,428 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 13 [2024-10-11 20:23:01,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:23:01,429 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2024-10-11 20:23:01,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 20:23:01,429 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2024-10-11 20:23:01,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-11 20:23:01,430 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:23:01,430 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:23:01,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 20:23:01,431 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-11 20:23:01,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:23:01,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1378842919, now seen corresponding path program 1 times [2024-10-11 20:23:01,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:23:01,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353773086] [2024-10-11 20:23:01,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:23:01,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:23:01,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:01,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 20:23:01,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:01,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:23:01,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:23:01,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353773086] [2024-10-11 20:23:01,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353773086] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:23:01,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:23:01,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 20:23:01,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354508098] [2024-10-11 20:23:01,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:23:01,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 20:23:01,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:23:01,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 20:23:01,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 20:23:01,572 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 20:23:01,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:23:01,642 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2024-10-11 20:23:01,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 20:23:01,643 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2024-10-11 20:23:01,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:23:01,644 INFO L225 Difference]: With dead ends: 49 [2024-10-11 20:23:01,644 INFO L226 Difference]: Without dead ends: 47 [2024-10-11 20:23:01,644 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 20:23:01,645 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 4 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 20:23:01,645 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 162 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 20:23:01,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-10-11 20:23:01,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 45. [2024-10-11 20:23:01,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 32 states have (on average 1.53125) internal successors, (49), 41 states have internal predecessors, (49), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-11 20:23:01,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 53 transitions. [2024-10-11 20:23:01,654 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 53 transitions. Word has length 13 [2024-10-11 20:23:01,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:23:01,655 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 53 transitions. [2024-10-11 20:23:01,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 20:23:01,655 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 53 transitions. [2024-10-11 20:23:01,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-10-11 20:23:01,656 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:23:01,656 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:23:01,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 20:23:01,657 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-11 20:23:01,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:23:01,657 INFO L85 PathProgramCache]: Analyzing trace with hash 42253252, now seen corresponding path program 1 times [2024-10-11 20:23:01,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:23:01,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475300985] [2024-10-11 20:23:01,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:23:01,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:23:01,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:01,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 20:23:01,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:01,804 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:23:01,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:23:01,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475300985] [2024-10-11 20:23:01,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475300985] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:23:01,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [875999950] [2024-10-11 20:23:01,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:23:01,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:23:01,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:23:01,811 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:23:01,812 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 20:23:01,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:01,875 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 20:23:01,878 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:23:01,933 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:23:01,933 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 20:23:01,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [875999950] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:23:01,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 20:23:01,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2024-10-11 20:23:01,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363111656] [2024-10-11 20:23:01,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:23:01,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 20:23:01,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:23:01,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 20:23:01,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-10-11 20:23:01,938 INFO L87 Difference]: Start difference. First operand 45 states and 53 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 20:23:02,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:23:02,021 INFO L93 Difference]: Finished difference Result 45 states and 53 transitions. [2024-10-11 20:23:02,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 20:23:02,022 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2024-10-11 20:23:02,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:23:02,026 INFO L225 Difference]: With dead ends: 45 [2024-10-11 20:23:02,026 INFO L226 Difference]: Without dead ends: 44 [2024-10-11 20:23:02,027 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-10-11 20:23:02,031 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 1 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 20:23:02,032 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 116 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 20:23:02,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-10-11 20:23:02,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2024-10-11 20:23:02,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 32 states have (on average 1.5) internal successors, (48), 40 states have internal predecessors, (48), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-11 20:23:02,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 52 transitions. [2024-10-11 20:23:02,043 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 52 transitions. Word has length 16 [2024-10-11 20:23:02,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:23:02,043 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 52 transitions. [2024-10-11 20:23:02,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 20:23:02,044 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 52 transitions. [2024-10-11 20:23:02,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-10-11 20:23:02,044 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:23:02,044 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:23:02,080 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-11 20:23:02,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:23:02,248 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-11 20:23:02,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:23:02,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1309850882, now seen corresponding path program 1 times [2024-10-11 20:23:02,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:23:02,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939458894] [2024-10-11 20:23:02,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:23:02,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:23:02,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:02,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 20:23:02,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:02,427 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:23:02,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:23:02,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939458894] [2024-10-11 20:23:02,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939458894] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:23:02,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1932603281] [2024-10-11 20:23:02,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:23:02,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:23:02,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:23:02,433 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:23:02,434 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 20:23:02,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:02,500 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 20:23:02,501 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:23:02,547 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:23:02,548 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:23:02,645 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:23:02,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1932603281] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:23:02,645 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:23:02,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 12 [2024-10-11 20:23:02,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865771739] [2024-10-11 20:23:02,645 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:23:02,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 20:23:02,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:23:02,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 20:23:02,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-10-11 20:23:02,647 INFO L87 Difference]: Start difference. First operand 44 states and 52 transitions. Second operand has 13 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 20:23:02,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:23:02,745 INFO L93 Difference]: Finished difference Result 56 states and 70 transitions. [2024-10-11 20:23:02,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-11 20:23:02,746 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2024-10-11 20:23:02,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:23:02,747 INFO L225 Difference]: With dead ends: 56 [2024-10-11 20:23:02,748 INFO L226 Difference]: Without dead ends: 55 [2024-10-11 20:23:02,749 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-10-11 20:23:02,750 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 3 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 20:23:02,751 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 200 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 20:23:02,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-10-11 20:23:02,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 53. [2024-10-11 20:23:02,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 41 states have (on average 1.4634146341463414) internal successors, (60), 49 states have internal predecessors, (60), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-11 20:23:02,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 64 transitions. [2024-10-11 20:23:02,762 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 64 transitions. Word has length 17 [2024-10-11 20:23:02,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:23:02,762 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 64 transitions. [2024-10-11 20:23:02,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 20:23:02,762 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 64 transitions. [2024-10-11 20:23:02,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-10-11 20:23:02,763 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:23:02,763 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:23:02,778 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-11 20:23:02,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:23:02,964 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-11 20:23:02,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:23:02,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1941439784, now seen corresponding path program 1 times [2024-10-11 20:23:02,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:23:02,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27622658] [2024-10-11 20:23:02,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:23:02,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:23:02,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:03,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 20:23:03,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:03,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:23:03,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:23:03,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27622658] [2024-10-11 20:23:03,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27622658] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:23:03,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:23:03,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 20:23:03,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351433269] [2024-10-11 20:23:03,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:23:03,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 20:23:03,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:23:03,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 20:23:03,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 20:23:03,018 INFO L87 Difference]: Start difference. First operand 53 states and 64 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 20:23:03,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:23:03,052 INFO L93 Difference]: Finished difference Result 60 states and 72 transitions. [2024-10-11 20:23:03,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 20:23:03,052 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2024-10-11 20:23:03,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:23:03,053 INFO L225 Difference]: With dead ends: 60 [2024-10-11 20:23:03,053 INFO L226 Difference]: Without dead ends: 58 [2024-10-11 20:23:03,053 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 20:23:03,054 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 4 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 20:23:03,054 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 161 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 20:23:03,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-10-11 20:23:03,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2024-10-11 20:23:03,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 44 states have (on average 1.4318181818181819) internal successors, (63), 52 states have internal predecessors, (63), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-11 20:23:03,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 67 transitions. [2024-10-11 20:23:03,058 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 67 transitions. Word has length 18 [2024-10-11 20:23:03,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:23:03,059 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 67 transitions. [2024-10-11 20:23:03,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 20:23:03,059 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 67 transitions. [2024-10-11 20:23:03,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-10-11 20:23:03,059 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:23:03,060 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:23:03,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 20:23:03,060 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-11 20:23:03,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:23:03,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1403134767, now seen corresponding path program 1 times [2024-10-11 20:23:03,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:23:03,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014813978] [2024-10-11 20:23:03,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:23:03,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:23:03,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:03,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 20:23:03,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:03,116 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 20:23:03,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:23:03,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014813978] [2024-10-11 20:23:03,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014813978] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:23:03,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:23:03,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 20:23:03,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338716286] [2024-10-11 20:23:03,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:23:03,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 20:23:03,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:23:03,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 20:23:03,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 20:23:03,118 INFO L87 Difference]: Start difference. First operand 56 states and 67 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 20:23:03,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:23:03,158 INFO L93 Difference]: Finished difference Result 91 states and 107 transitions. [2024-10-11 20:23:03,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 20:23:03,158 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2024-10-11 20:23:03,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:23:03,159 INFO L225 Difference]: With dead ends: 91 [2024-10-11 20:23:03,159 INFO L226 Difference]: Without dead ends: 58 [2024-10-11 20:23:03,159 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 20:23:03,160 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 31 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 20:23:03,160 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 145 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 20:23:03,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-10-11 20:23:03,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2024-10-11 20:23:03,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 44 states have (on average 1.4090909090909092) internal successors, (62), 52 states have internal predecessors, (62), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-11 20:23:03,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 66 transitions. [2024-10-11 20:23:03,164 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 66 transitions. Word has length 21 [2024-10-11 20:23:03,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:23:03,164 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 66 transitions. [2024-10-11 20:23:03,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 20:23:03,165 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 66 transitions. [2024-10-11 20:23:03,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-10-11 20:23:03,165 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:23:03,165 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:23:03,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 20:23:03,166 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-11 20:23:03,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:23:03,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1905096908, now seen corresponding path program 1 times [2024-10-11 20:23:03,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:23:03,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423116543] [2024-10-11 20:23:03,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:23:03,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:23:03,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:03,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 20:23:03,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:03,261 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-11 20:23:03,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:23:03,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423116543] [2024-10-11 20:23:03,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423116543] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:23:03,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:23:03,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 20:23:03,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946373988] [2024-10-11 20:23:03,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:23:03,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 20:23:03,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:23:03,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 20:23:03,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 20:23:03,263 INFO L87 Difference]: Start difference. First operand 56 states and 66 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 20:23:03,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:23:03,321 INFO L93 Difference]: Finished difference Result 76 states and 91 transitions. [2024-10-11 20:23:03,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 20:23:03,321 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2024-10-11 20:23:03,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:23:03,322 INFO L225 Difference]: With dead ends: 76 [2024-10-11 20:23:03,322 INFO L226 Difference]: Without dead ends: 64 [2024-10-11 20:23:03,323 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-11 20:23:03,323 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 36 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 20:23:03,323 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 147 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 20:23:03,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2024-10-11 20:23:03,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 62. [2024-10-11 20:23:03,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 49 states have (on average 1.3877551020408163) internal successors, (68), 57 states have internal predecessors, (68), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-11 20:23:03,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 74 transitions. [2024-10-11 20:23:03,328 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 74 transitions. Word has length 24 [2024-10-11 20:23:03,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:23:03,328 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 74 transitions. [2024-10-11 20:23:03,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 20:23:03,329 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 74 transitions. [2024-10-11 20:23:03,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-10-11 20:23:03,329 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:23:03,329 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:23:03,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 20:23:03,329 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-11 20:23:03,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:23:03,330 INFO L85 PathProgramCache]: Analyzing trace with hash 671502185, now seen corresponding path program 1 times [2024-10-11 20:23:03,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:23:03,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045628303] [2024-10-11 20:23:03,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:23:03,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:23:03,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:03,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 20:23:03,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:03,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 20:23:03,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:03,381 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-11 20:23:03,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:23:03,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045628303] [2024-10-11 20:23:03,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045628303] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:23:03,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:23:03,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 20:23:03,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882134603] [2024-10-11 20:23:03,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:23:03,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 20:23:03,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:23:03,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 20:23:03,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 20:23:03,383 INFO L87 Difference]: Start difference. First operand 62 states and 74 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-11 20:23:03,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:23:03,424 INFO L93 Difference]: Finished difference Result 68 states and 82 transitions. [2024-10-11 20:23:03,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 20:23:03,424 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2024-10-11 20:23:03,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:23:03,425 INFO L225 Difference]: With dead ends: 68 [2024-10-11 20:23:03,425 INFO L226 Difference]: Without dead ends: 66 [2024-10-11 20:23:03,425 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 20:23:03,426 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 6 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 20:23:03,426 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 144 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 20:23:03,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2024-10-11 20:23:03,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 64. [2024-10-11 20:23:03,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 51 states have (on average 1.3725490196078431) internal successors, (70), 59 states have internal predecessors, (70), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-11 20:23:03,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 76 transitions. [2024-10-11 20:23:03,431 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 76 transitions. Word has length 25 [2024-10-11 20:23:03,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:23:03,431 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 76 transitions. [2024-10-11 20:23:03,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-11 20:23:03,431 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 76 transitions. [2024-10-11 20:23:03,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-10-11 20:23:03,432 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:23:03,432 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:23:03,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 20:23:03,432 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-11 20:23:03,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:23:03,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1078145473, now seen corresponding path program 2 times [2024-10-11 20:23:03,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:23:03,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997815721] [2024-10-11 20:23:03,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:23:03,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:23:03,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:03,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 20:23:03,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:03,568 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:23:03,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:23:03,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997815721] [2024-10-11 20:23:03,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997815721] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:23:03,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [933571677] [2024-10-11 20:23:03,569 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 20:23:03,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:23:03,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:23:03,573 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:23:03,574 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 20:23:03,635 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-11 20:23:03,635 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:23:03,636 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 20:23:03,637 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:23:03,696 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-11 20:23:03,696 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:23:03,748 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-11 20:23:03,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [933571677] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:23:03,749 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:23:03,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5, 5] total 16 [2024-10-11 20:23:03,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445869111] [2024-10-11 20:23:03,749 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:23:03,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-11 20:23:03,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:23:03,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-11 20:23:03,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2024-10-11 20:23:03,750 INFO L87 Difference]: Start difference. First operand 64 states and 76 transitions. Second operand has 17 states, 16 states have (on average 2.3125) internal successors, (37), 16 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-11 20:23:03,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:23:03,980 INFO L93 Difference]: Finished difference Result 69 states and 85 transitions. [2024-10-11 20:23:03,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-11 20:23:03,980 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.3125) internal successors, (37), 16 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 26 [2024-10-11 20:23:03,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:23:03,981 INFO L225 Difference]: With dead ends: 69 [2024-10-11 20:23:03,981 INFO L226 Difference]: Without dead ends: 68 [2024-10-11 20:23:03,982 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 45 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=150, Invalid=606, Unknown=0, NotChecked=0, Total=756 [2024-10-11 20:23:03,982 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 30 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 20:23:03,982 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 349 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 20:23:03,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-10-11 20:23:03,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 52. [2024-10-11 20:23:03,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 40 states have (on average 1.375) internal successors, (55), 47 states have internal predecessors, (55), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-11 20:23:03,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 61 transitions. [2024-10-11 20:23:03,992 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 61 transitions. Word has length 26 [2024-10-11 20:23:03,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:23:03,992 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 61 transitions. [2024-10-11 20:23:03,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.3125) internal successors, (37), 16 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-11 20:23:03,992 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 61 transitions. [2024-10-11 20:23:03,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-10-11 20:23:03,993 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:23:03,993 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:23:04,006 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-11 20:23:04,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:23:04,194 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-11 20:23:04,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:23:04,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1301268409, now seen corresponding path program 1 times [2024-10-11 20:23:04,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:23:04,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220087695] [2024-10-11 20:23:04,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:23:04,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:23:04,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:04,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 20:23:04,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:04,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 20:23:04,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:04,260 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-11 20:23:04,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:23:04,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220087695] [2024-10-11 20:23:04,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220087695] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:23:04,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:23:04,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 20:23:04,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255490677] [2024-10-11 20:23:04,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:23:04,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 20:23:04,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:23:04,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 20:23:04,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 20:23:04,262 INFO L87 Difference]: Start difference. First operand 52 states and 61 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 20:23:04,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:23:04,295 INFO L93 Difference]: Finished difference Result 79 states and 93 transitions. [2024-10-11 20:23:04,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 20:23:04,296 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2024-10-11 20:23:04,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:23:04,297 INFO L225 Difference]: With dead ends: 79 [2024-10-11 20:23:04,297 INFO L226 Difference]: Without dead ends: 58 [2024-10-11 20:23:04,297 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 20:23:04,298 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 3 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 20:23:04,298 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 200 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 20:23:04,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-10-11 20:23:04,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2024-10-11 20:23:04,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 45 states have (on average 1.3333333333333333) internal successors, (60), 51 states have internal predecessors, (60), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-11 20:23:04,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 69 transitions. [2024-10-11 20:23:04,303 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 69 transitions. Word has length 28 [2024-10-11 20:23:04,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:23:04,303 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 69 transitions. [2024-10-11 20:23:04,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 20:23:04,303 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 69 transitions. [2024-10-11 20:23:04,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-10-11 20:23:04,304 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:23:04,304 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:23:04,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 20:23:04,304 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-11 20:23:04,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:23:04,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1186244424, now seen corresponding path program 1 times [2024-10-11 20:23:04,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:23:04,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399261813] [2024-10-11 20:23:04,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:23:04,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:23:04,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:04,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 20:23:04,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:04,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 20:23:04,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:04,356 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-11 20:23:04,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:23:04,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399261813] [2024-10-11 20:23:04,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399261813] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:23:04,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:23:04,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 20:23:04,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175215823] [2024-10-11 20:23:04,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:23:04,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 20:23:04,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:23:04,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 20:23:04,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 20:23:04,358 INFO L87 Difference]: Start difference. First operand 58 states and 69 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-11 20:23:04,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:23:04,397 INFO L93 Difference]: Finished difference Result 74 states and 87 transitions. [2024-10-11 20:23:04,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 20:23:04,398 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 28 [2024-10-11 20:23:04,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:23:04,398 INFO L225 Difference]: With dead ends: 74 [2024-10-11 20:23:04,399 INFO L226 Difference]: Without dead ends: 59 [2024-10-11 20:23:04,399 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 20:23:04,399 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 3 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 20:23:04,400 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 144 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 20:23:04,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2024-10-11 20:23:04,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2024-10-11 20:23:04,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 46 states have (on average 1.326086956521739) internal successors, (61), 52 states have internal predecessors, (61), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-11 20:23:04,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 70 transitions. [2024-10-11 20:23:04,404 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 70 transitions. Word has length 28 [2024-10-11 20:23:04,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:23:04,405 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 70 transitions. [2024-10-11 20:23:04,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-11 20:23:04,405 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 70 transitions. [2024-10-11 20:23:04,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-10-11 20:23:04,406 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:23:04,406 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:23:04,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 20:23:04,406 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-11 20:23:04,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:23:04,407 INFO L85 PathProgramCache]: Analyzing trace with hash 669985751, now seen corresponding path program 1 times [2024-10-11 20:23:04,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:23:04,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942948675] [2024-10-11 20:23:04,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:23:04,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:23:04,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:04,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 20:23:04,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:04,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 20:23:04,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:04,489 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-11 20:23:04,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:23:04,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942948675] [2024-10-11 20:23:04,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942948675] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:23:04,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1746349092] [2024-10-11 20:23:04,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:23:04,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:23:04,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:23:04,491 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:23:04,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 20:23:04,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:04,569 INFO L255 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 20:23:04,570 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:23:04,591 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-11 20:23:04,591 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 20:23:04,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1746349092] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:23:04,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 20:23:04,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2024-10-11 20:23:04,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135612220] [2024-10-11 20:23:04,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:23:04,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 20:23:04,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:23:04,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 20:23:04,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-10-11 20:23:04,592 INFO L87 Difference]: Start difference. First operand 59 states and 70 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 20:23:04,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:23:04,614 INFO L93 Difference]: Finished difference Result 59 states and 70 transitions. [2024-10-11 20:23:04,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 20:23:04,614 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 34 [2024-10-11 20:23:04,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:23:04,615 INFO L225 Difference]: With dead ends: 59 [2024-10-11 20:23:04,615 INFO L226 Difference]: Without dead ends: 58 [2024-10-11 20:23:04,615 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-10-11 20:23:04,615 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 1 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 20:23:04,616 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 112 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 20:23:04,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-10-11 20:23:04,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2024-10-11 20:23:04,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 46 states have (on average 1.3043478260869565) internal successors, (60), 51 states have internal predecessors, (60), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-11 20:23:04,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 69 transitions. [2024-10-11 20:23:04,620 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 69 transitions. Word has length 34 [2024-10-11 20:23:04,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:23:04,620 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 69 transitions. [2024-10-11 20:23:04,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 20:23:04,621 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 69 transitions. [2024-10-11 20:23:04,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-10-11 20:23:04,621 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:23:04,621 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:23:04,634 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-11 20:23:04,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-10-11 20:23:04,822 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-11 20:23:04,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:23:04,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1037761982, now seen corresponding path program 1 times [2024-10-11 20:23:04,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:23:04,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423496405] [2024-10-11 20:23:04,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:23:04,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:23:04,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:04,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 20:23:04,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:04,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 20:23:04,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:04,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-11 20:23:04,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:04,898 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-10-11 20:23:04,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:23:04,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423496405] [2024-10-11 20:23:04,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423496405] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:23:04,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1501731774] [2024-10-11 20:23:04,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:23:04,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:23:04,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:23:04,900 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:23:04,901 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-11 20:23:04,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:04,976 INFO L255 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-11 20:23:04,978 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:23:05,068 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 20:23:05,068 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:23:05,164 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-11 20:23:05,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1501731774] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:23:05,164 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:23:05,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9, 9] total 17 [2024-10-11 20:23:05,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623050684] [2024-10-11 20:23:05,165 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:23:05,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-11 20:23:05,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:23:05,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-11 20:23:05,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2024-10-11 20:23:05,166 INFO L87 Difference]: Start difference. First operand 58 states and 69 transitions. Second operand has 17 states, 17 states have (on average 2.8823529411764706) internal successors, (49), 16 states have internal predecessors, (49), 6 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-10-11 20:23:05,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:23:05,414 INFO L93 Difference]: Finished difference Result 110 states and 132 transitions. [2024-10-11 20:23:05,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 20:23:05,415 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.8823529411764706) internal successors, (49), 16 states have internal predecessors, (49), 6 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 35 [2024-10-11 20:23:05,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:23:05,416 INFO L225 Difference]: With dead ends: 110 [2024-10-11 20:23:05,416 INFO L226 Difference]: Without dead ends: 75 [2024-10-11 20:23:05,417 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 60 SyntacticMatches, 4 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2024-10-11 20:23:05,418 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 23 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 20:23:05,419 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 470 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 20:23:05,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-10-11 20:23:05,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 69. [2024-10-11 20:23:05,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 58 states have (on average 1.2413793103448276) internal successors, (72), 60 states have internal predecessors, (72), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (8), 7 states have call predecessors, (8), 4 states have call successors, (8) [2024-10-11 20:23:05,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 84 transitions. [2024-10-11 20:23:05,426 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 84 transitions. Word has length 35 [2024-10-11 20:23:05,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:23:05,427 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 84 transitions. [2024-10-11 20:23:05,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.8823529411764706) internal successors, (49), 16 states have internal predecessors, (49), 6 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-10-11 20:23:05,428 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 84 transitions. [2024-10-11 20:23:05,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-10-11 20:23:05,429 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:23:05,429 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:23:05,445 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-11 20:23:05,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-11 20:23:05,630 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-11 20:23:05,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:23:05,631 INFO L85 PathProgramCache]: Analyzing trace with hash -705278061, now seen corresponding path program 1 times [2024-10-11 20:23:05,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:23:05,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510465410] [2024-10-11 20:23:05,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:23:05,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:23:05,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:05,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 20:23:05,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:05,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 20:23:05,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:05,699 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-11 20:23:05,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:23:05,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510465410] [2024-10-11 20:23:05,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510465410] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:23:05,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1657700079] [2024-10-11 20:23:05,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:23:05,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:23:05,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:23:05,702 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:23:05,703 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-11 20:23:05,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:05,780 INFO L255 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 20:23:05,782 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:23:05,805 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-11 20:23:05,805 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:23:05,849 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-11 20:23:05,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1657700079] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:23:05,849 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:23:05,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 12 [2024-10-11 20:23:05,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38773202] [2024-10-11 20:23:05,849 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:23:05,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 20:23:05,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:23:05,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 20:23:05,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-10-11 20:23:05,850 INFO L87 Difference]: Start difference. First operand 69 states and 84 transitions. Second operand has 13 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 20:23:05,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:23:05,896 INFO L93 Difference]: Finished difference Result 79 states and 96 transitions. [2024-10-11 20:23:05,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-11 20:23:05,896 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 35 [2024-10-11 20:23:05,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:23:05,897 INFO L225 Difference]: With dead ends: 79 [2024-10-11 20:23:05,897 INFO L226 Difference]: Without dead ends: 78 [2024-10-11 20:23:05,897 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-10-11 20:23:05,897 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 3 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 20:23:05,898 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 259 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 20:23:05,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-10-11 20:23:05,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2024-10-11 20:23:05,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 67 states have (on average 1.208955223880597) internal successors, (81), 69 states have internal predecessors, (81), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (8), 7 states have call predecessors, (8), 4 states have call successors, (8) [2024-10-11 20:23:05,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 93 transitions. [2024-10-11 20:23:05,907 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 93 transitions. Word has length 35 [2024-10-11 20:23:05,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:23:05,907 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 93 transitions. [2024-10-11 20:23:05,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 20:23:05,908 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 93 transitions. [2024-10-11 20:23:05,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-10-11 20:23:05,908 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:23:05,908 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:23:05,922 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-11 20:23:06,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-11 20:23:06,110 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-11 20:23:06,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:23:06,110 INFO L85 PathProgramCache]: Analyzing trace with hash 827971364, now seen corresponding path program 1 times [2024-10-11 20:23:06,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:23:06,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041677264] [2024-10-11 20:23:06,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:23:06,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:23:06,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:06,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 20:23:06,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:06,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 20:23:06,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:06,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-11 20:23:06,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:06,196 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-11 20:23:06,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:23:06,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041677264] [2024-10-11 20:23:06,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041677264] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:23:06,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1723649896] [2024-10-11 20:23:06,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:23:06,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:23:06,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:23:06,198 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:23:06,199 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-11 20:23:06,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:06,275 INFO L255 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 20:23:06,276 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:23:06,299 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-11 20:23:06,299 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:23:06,352 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-11 20:23:06,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1723649896] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:23:06,352 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:23:06,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 12 [2024-10-11 20:23:06,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421649793] [2024-10-11 20:23:06,352 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:23:06,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 20:23:06,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:23:06,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 20:23:06,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-10-11 20:23:06,354 INFO L87 Difference]: Start difference. First operand 78 states and 93 transitions. Second operand has 13 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-11 20:23:06,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:23:06,439 INFO L93 Difference]: Finished difference Result 110 states and 141 transitions. [2024-10-11 20:23:06,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-11 20:23:06,439 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 39 [2024-10-11 20:23:06,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:23:06,440 INFO L225 Difference]: With dead ends: 110 [2024-10-11 20:23:06,440 INFO L226 Difference]: Without dead ends: 108 [2024-10-11 20:23:06,441 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-10-11 20:23:06,441 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 17 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 20:23:06,441 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 195 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 20:23:06,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-10-11 20:23:06,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 104. [2024-10-11 20:23:06,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 90 states have (on average 1.2222222222222223) internal successors, (110), 89 states have internal predecessors, (110), 7 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (14), 13 states have call predecessors, (14), 7 states have call successors, (14) [2024-10-11 20:23:06,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 131 transitions. [2024-10-11 20:23:06,447 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 131 transitions. Word has length 39 [2024-10-11 20:23:06,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:23:06,447 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 131 transitions. [2024-10-11 20:23:06,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-11 20:23:06,447 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 131 transitions. [2024-10-11 20:23:06,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-10-11 20:23:06,447 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:23:06,448 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:23:06,460 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-11 20:23:06,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:23:06,649 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-11 20:23:06,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:23:06,649 INFO L85 PathProgramCache]: Analyzing trace with hash -761211690, now seen corresponding path program 1 times [2024-10-11 20:23:06,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:23:06,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825596871] [2024-10-11 20:23:06,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:23:06,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:23:06,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:06,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 20:23:06,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:06,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 20:23:06,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:06,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-11 20:23:06,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:06,694 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-10-11 20:23:06,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:23:06,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825596871] [2024-10-11 20:23:06,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825596871] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:23:06,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:23:06,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 20:23:06,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455726503] [2024-10-11 20:23:06,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:23:06,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 20:23:06,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:23:06,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 20:23:06,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 20:23:06,696 INFO L87 Difference]: Start difference. First operand 104 states and 131 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 20:23:06,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:23:06,721 INFO L93 Difference]: Finished difference Result 104 states and 131 transitions. [2024-10-11 20:23:06,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 20:23:06,721 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 41 [2024-10-11 20:23:06,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:23:06,722 INFO L225 Difference]: With dead ends: 104 [2024-10-11 20:23:06,722 INFO L226 Difference]: Without dead ends: 103 [2024-10-11 20:23:06,722 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 20:23:06,722 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 4 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 20:23:06,723 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 102 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 20:23:06,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-10-11 20:23:06,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2024-10-11 20:23:06,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 90 states have (on average 1.211111111111111) internal successors, (109), 88 states have internal predecessors, (109), 7 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (14), 13 states have call predecessors, (14), 7 states have call successors, (14) [2024-10-11 20:23:06,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 130 transitions. [2024-10-11 20:23:06,727 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 130 transitions. Word has length 41 [2024-10-11 20:23:06,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:23:06,728 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 130 transitions. [2024-10-11 20:23:06,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 20:23:06,728 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 130 transitions. [2024-10-11 20:23:06,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-10-11 20:23:06,728 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:23:06,728 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:23:06,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-11 20:23:06,728 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-11 20:23:06,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:23:06,729 INFO L85 PathProgramCache]: Analyzing trace with hash -2122725792, now seen corresponding path program 1 times [2024-10-11 20:23:06,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:23:06,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136300543] [2024-10-11 20:23:06,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:23:06,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:23:06,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:06,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 20:23:06,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:06,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 20:23:06,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:06,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-11 20:23:06,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:06,840 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-11 20:23:06,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:23:06,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136300543] [2024-10-11 20:23:06,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136300543] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:23:06,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [451169347] [2024-10-11 20:23:06,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:23:06,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:23:06,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:23:06,842 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:23:06,843 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-11 20:23:06,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:06,925 INFO L255 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 20:23:06,926 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:23:06,962 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-11 20:23:06,962 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:23:07,029 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-11 20:23:07,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [451169347] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:23:07,029 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:23:07,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 14 [2024-10-11 20:23:07,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088221723] [2024-10-11 20:23:07,030 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:23:07,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-11 20:23:07,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:23:07,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-11 20:23:07,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-10-11 20:23:07,031 INFO L87 Difference]: Start difference. First operand 103 states and 130 transitions. Second operand has 15 states, 14 states have (on average 3.5) internal successors, (49), 14 states have internal predecessors, (49), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-11 20:23:07,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:23:07,112 INFO L93 Difference]: Finished difference Result 108 states and 137 transitions. [2024-10-11 20:23:07,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-11 20:23:07,112 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.5) internal successors, (49), 14 states have internal predecessors, (49), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 42 [2024-10-11 20:23:07,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:23:07,113 INFO L225 Difference]: With dead ends: 108 [2024-10-11 20:23:07,113 INFO L226 Difference]: Without dead ends: 106 [2024-10-11 20:23:07,113 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-10-11 20:23:07,114 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 7 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 20:23:07,114 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 181 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 20:23:07,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-10-11 20:23:07,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 99. [2024-10-11 20:23:07,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 88 states have (on average 1.1931818181818181) internal successors, (105), 84 states have internal predecessors, (105), 7 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (14), 13 states have call predecessors, (14), 7 states have call successors, (14) [2024-10-11 20:23:07,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 126 transitions. [2024-10-11 20:23:07,119 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 126 transitions. Word has length 42 [2024-10-11 20:23:07,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:23:07,119 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 126 transitions. [2024-10-11 20:23:07,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.5) internal successors, (49), 14 states have internal predecessors, (49), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-11 20:23:07,119 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 126 transitions. [2024-10-11 20:23:07,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-10-11 20:23:07,119 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:23:07,120 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:23:07,132 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-11 20:23:07,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-10-11 20:23:07,321 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-11 20:23:07,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:23:07,321 INFO L85 PathProgramCache]: Analyzing trace with hash -129615414, now seen corresponding path program 2 times [2024-10-11 20:23:07,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:23:07,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114408380] [2024-10-11 20:23:07,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:23:07,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:23:07,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:07,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 20:23:07,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:07,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 20:23:07,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:07,512 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-10-11 20:23:07,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:23:07,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114408380] [2024-10-11 20:23:07,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114408380] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:23:07,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [994571783] [2024-10-11 20:23:07,513 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 20:23:07,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:23:07,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:23:07,514 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:23:07,515 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-11 20:23:07,586 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-11 20:23:07,587 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:23:07,587 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 20:23:07,589 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:23:07,677 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-11 20:23:07,678 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:23:07,753 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-11 20:23:07,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [994571783] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:23:07,754 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:23:07,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6, 6] total 16 [2024-10-11 20:23:07,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737127688] [2024-10-11 20:23:07,754 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:23:07,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-11 20:23:07,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:23:07,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-11 20:23:07,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-10-11 20:23:07,755 INFO L87 Difference]: Start difference. First operand 99 states and 126 transitions. Second operand has 16 states, 16 states have (on average 3.5) internal successors, (56), 15 states have internal predecessors, (56), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-11 20:23:07,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:23:07,962 INFO L93 Difference]: Finished difference Result 121 states and 149 transitions. [2024-10-11 20:23:07,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-11 20:23:07,962 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.5) internal successors, (56), 15 states have internal predecessors, (56), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 44 [2024-10-11 20:23:07,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:23:07,963 INFO L225 Difference]: With dead ends: 121 [2024-10-11 20:23:07,963 INFO L226 Difference]: Without dead ends: 62 [2024-10-11 20:23:07,963 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 82 SyntacticMatches, 4 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=361, Unknown=0, NotChecked=0, Total=420 [2024-10-11 20:23:07,964 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 22 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 20:23:07,964 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 285 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 20:23:07,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-10-11 20:23:07,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 50. [2024-10-11 20:23:07,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 42 states have (on average 1.0952380952380953) internal successors, (46), 42 states have internal predecessors, (46), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-11 20:23:07,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 58 transitions. [2024-10-11 20:23:07,967 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 58 transitions. Word has length 44 [2024-10-11 20:23:07,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:23:07,967 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 58 transitions. [2024-10-11 20:23:07,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.5) internal successors, (56), 15 states have internal predecessors, (56), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-11 20:23:07,967 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 58 transitions. [2024-10-11 20:23:07,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-11 20:23:07,968 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:23:07,968 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:23:07,981 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-11 20:23:08,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-10-11 20:23:08,169 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-11 20:23:08,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:23:08,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1424337477, now seen corresponding path program 2 times [2024-10-11 20:23:08,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:23:08,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20838213] [2024-10-11 20:23:08,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:23:08,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:23:08,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:08,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 20:23:08,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:08,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 20:23:08,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:08,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-11 20:23:08,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:08,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 20:23:08,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:08,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-11 20:23:08,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:08,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-11 20:23:08,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:08,704 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 41 proven. 24 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-11 20:23:08,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:23:08,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20838213] [2024-10-11 20:23:08,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20838213] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:23:08,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376472787] [2024-10-11 20:23:08,704 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 20:23:08,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:23:08,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:23:08,706 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:23:08,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-11 20:23:08,820 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 20:23:08,820 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:23:08,822 INFO L255 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-11 20:23:08,824 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:23:08,957 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 80 proven. 5 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-11 20:23:08,957 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:23:09,082 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 44 proven. 5 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-10-11 20:23:09,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [376472787] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:23:09,082 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:23:09,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 13, 13] total 27 [2024-10-11 20:23:09,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885950942] [2024-10-11 20:23:09,082 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:23:09,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-10-11 20:23:09,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:23:09,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-10-11 20:23:09,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=609, Unknown=0, NotChecked=0, Total=702 [2024-10-11 20:23:09,084 INFO L87 Difference]: Start difference. First operand 50 states and 58 transitions. Second operand has 27 states, 27 states have (on average 2.6296296296296298) internal successors, (71), 26 states have internal predecessors, (71), 9 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-10-11 20:23:09,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:23:09,252 INFO L93 Difference]: Finished difference Result 91 states and 112 transitions. [2024-10-11 20:23:09,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 20:23:09,252 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 2.6296296296296298) internal successors, (71), 26 states have internal predecessors, (71), 9 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 69 [2024-10-11 20:23:09,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:23:09,253 INFO L225 Difference]: With dead ends: 91 [2024-10-11 20:23:09,253 INFO L226 Difference]: Without dead ends: 55 [2024-10-11 20:23:09,253 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 132 SyntacticMatches, 8 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 305 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=129, Invalid=863, Unknown=0, NotChecked=0, Total=992 [2024-10-11 20:23:09,254 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 14 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 20:23:09,254 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 309 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 20:23:09,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-10-11 20:23:09,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 53. [2024-10-11 20:23:09,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 45 states have (on average 1.0888888888888888) internal successors, (49), 45 states have internal predecessors, (49), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-11 20:23:09,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 61 transitions. [2024-10-11 20:23:09,257 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 61 transitions. Word has length 69 [2024-10-11 20:23:09,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:23:09,257 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 61 transitions. [2024-10-11 20:23:09,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 2.6296296296296298) internal successors, (71), 26 states have internal predecessors, (71), 9 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-10-11 20:23:09,257 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 61 transitions. [2024-10-11 20:23:09,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-10-11 20:23:09,257 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:23:09,257 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:23:09,270 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-10-11 20:23:09,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:23:09,461 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-11 20:23:09,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:23:09,462 INFO L85 PathProgramCache]: Analyzing trace with hash 945189346, now seen corresponding path program 3 times [2024-10-11 20:23:09,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:23:09,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960793188] [2024-10-11 20:23:09,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:23:09,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:23:09,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:09,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 20:23:09,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:09,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 20:23:09,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:09,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 20:23:09,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:09,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-11 20:23:09,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:09,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 20:23:09,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:09,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-11 20:23:09,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:23:09,859 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 42 proven. 25 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-10-11 20:23:09,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:23:09,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960793188] [2024-10-11 20:23:09,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960793188] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:23:09,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1003804486] [2024-10-11 20:23:09,860 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-11 20:23:09,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:23:09,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:23:09,863 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:23:09,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-11 20:23:09,980 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-10-11 20:23:09,980 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:23:09,981 INFO L255 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 20:23:09,983 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:23:10,103 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-11 20:23:10,103 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:23:10,251 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-11 20:23:10,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1003804486] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:23:10,252 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:23:10,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 7, 7] total 24 [2024-10-11 20:23:10,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197974632] [2024-10-11 20:23:10,252 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:23:10,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-10-11 20:23:10,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:23:10,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-10-11 20:23:10,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=489, Unknown=0, NotChecked=0, Total=552 [2024-10-11 20:23:10,254 INFO L87 Difference]: Start difference. First operand 53 states and 61 transitions. Second operand has 24 states, 24 states have (on average 2.6666666666666665) internal successors, (64), 23 states have internal predecessors, (64), 8 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-11 20:23:10,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:23:10,602 INFO L93 Difference]: Finished difference Result 93 states and 116 transitions. [2024-10-11 20:23:10,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-10-11 20:23:10,602 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.6666666666666665) internal successors, (64), 23 states have internal predecessors, (64), 8 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 72 [2024-10-11 20:23:10,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:23:10,602 INFO L225 Difference]: With dead ends: 93 [2024-10-11 20:23:10,602 INFO L226 Difference]: Without dead ends: 0 [2024-10-11 20:23:10,603 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 144 SyntacticMatches, 5 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 354 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=202, Invalid=1520, Unknown=0, NotChecked=0, Total=1722 [2024-10-11 20:23:10,603 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 22 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 20:23:10,604 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 268 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 20:23:10,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-11 20:23:10,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-11 20:23:10,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:23:10,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-11 20:23:10,606 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 72 [2024-10-11 20:23:10,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:23:10,606 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-11 20:23:10,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.6666666666666665) internal successors, (64), 23 states have internal predecessors, (64), 8 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-11 20:23:10,606 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-11 20:23:10,606 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-11 20:23:10,608 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2024-10-11 20:23:10,608 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2024-10-11 20:23:10,608 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2024-10-11 20:23:10,609 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2024-10-11 20:23:10,609 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2024-10-11 20:23:10,609 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2024-10-11 20:23:10,609 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2024-10-11 20:23:10,609 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2024-10-11 20:23:10,609 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2024-10-11 20:23:10,609 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2024-10-11 20:23:10,622 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-10-11 20:23:10,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:23:10,816 INFO L407 BasicCegarLoop]: Path program histogram: [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:23:10,818 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-11 20:23:11,161 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 20:23:11,177 WARN L155 FloydHoareUtils]: Requires clause for ldv_malloc contained old-variable. Original clause: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) Eliminated clause: true [2024-10-11 20:23:11,183 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #res!base [2024-10-11 20:23:11,184 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-10-11 20:23:11,184 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-10-11 20:23:11,184 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-10-11 20:23:11,184 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-10-11 20:23:11,184 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 08:23:11 BoogieIcfgContainer [2024-10-11 20:23:11,184 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 20:23:11,185 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 20:23:11,185 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 20:23:11,185 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 20:23:11,185 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 08:23:01" (3/4) ... [2024-10-11 20:23:11,191 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-11 20:23:11,198 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2024-10-11 20:23:11,206 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-10-11 20:23:11,206 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-10-11 20:23:11,206 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-11 20:23:11,356 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-11 20:23:11,357 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-11 20:23:11,357 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 20:23:11,357 INFO L158 Benchmark]: Toolchain (without parser) took 11339.59ms. Allocated memory was 186.6MB in the beginning and 325.1MB in the end (delta: 138.4MB). Free memory was 115.8MB in the beginning and 240.7MB in the end (delta: -124.9MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. [2024-10-11 20:23:11,357 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 127.9MB. Free memory is still 93.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 20:23:11,357 INFO L158 Benchmark]: CACSL2BoogieTranslator took 531.04ms. Allocated memory is still 186.6MB. Free memory was 115.6MB in the beginning and 149.3MB in the end (delta: -33.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-10-11 20:23:11,357 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.78ms. Allocated memory is still 186.6MB. Free memory was 149.3MB in the beginning and 147.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 20:23:11,358 INFO L158 Benchmark]: Boogie Preprocessor took 56.02ms. Allocated memory is still 186.6MB. Free memory was 147.2MB in the beginning and 144.4MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-11 20:23:11,358 INFO L158 Benchmark]: RCFGBuilder took 365.62ms. Allocated memory is still 186.6MB. Free memory was 144.4MB in the beginning and 126.9MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-10-11 20:23:11,358 INFO L158 Benchmark]: TraceAbstraction took 10158.94ms. Allocated memory was 186.6MB in the beginning and 325.1MB in the end (delta: 138.4MB). Free memory was 126.2MB in the beginning and 245.9MB in the end (delta: -119.7MB). Peak memory consumption was 165.0MB. Max. memory is 16.1GB. [2024-10-11 20:23:11,358 INFO L158 Benchmark]: Witness Printer took 172.00ms. Allocated memory is still 325.1MB. Free memory was 245.9MB in the beginning and 240.7MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-11 20:23:11,359 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 127.9MB. Free memory is still 93.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 531.04ms. Allocated memory is still 186.6MB. Free memory was 115.6MB in the beginning and 149.3MB in the end (delta: -33.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.78ms. Allocated memory is still 186.6MB. Free memory was 149.3MB in the beginning and 147.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.02ms. Allocated memory is still 186.6MB. Free memory was 147.2MB in the beginning and 144.4MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 365.62ms. Allocated memory is still 186.6MB. Free memory was 144.4MB in the beginning and 126.9MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 10158.94ms. Allocated memory was 186.6MB in the beginning and 325.1MB in the end (delta: 138.4MB). Free memory was 126.2MB in the beginning and 245.9MB in the end (delta: -119.7MB). Peak memory consumption was 165.0MB. Max. memory is 16.1GB. * Witness Printer took 172.00ms. Allocated memory is still 325.1MB. Free memory was 245.9MB in the beginning and 240.7MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #res!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 790]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 790]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 765]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 765]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 772]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 772]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 772]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 772]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 780]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 780]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 45 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 9.7s, OverallIterations: 20, TraceHistogramMax: 6, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 240 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 237 mSDsluCounter, 4039 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3303 mSDsCounter, 50 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2272 IncrementalHoareTripleChecker+Invalid, 2322 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 50 mSolverCounterUnsat, 736 mSDtfsCounter, 2272 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1042 GetRequests, 797 SyntacticMatches, 24 SemanticMatches, 221 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1006 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=104occurred in iteration=15, InterpolantAutomatonStates: 188, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 20 MinimizatonAttempts, 61 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 1069 NumberOfCodeBlocks, 1013 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 1408 ConstructedInterpolants, 0 QuantifiedInterpolants, 3048 SizeOfPredicates, 15 NumberOfNonLiveVariables, 2083 ConjunctsInSsa, 77 ConjunctsInUnsatCore, 40 InterpolantComputations, 11 PerfectInterpolantSequences, 1030/1252 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold - InvariantResult [Line: 765]: Loop Invariant Derived loop invariant: ((((((len <= 2147483647) && (len <= 2147483647)) && (i <= 2147483648)) && (1 <= i)) && (1 <= len)) || (((((i == 0) && (len <= 2147483647)) && (len <= 2147483647)) && (1 <= len)) && (1 <= len))) - InvariantResult [Line: 780]: Loop Invariant Derived loop invariant: (((len <= 2147483647) && (i == 0)) || ((1 <= i) && (len <= 2147483647))) - InvariantResult [Line: 772]: Loop Invariant Derived loop invariant: (((len <= 2147483647) && (1 <= len)) && (j <= 2147483648)) - InvariantResult [Line: 790]: Loop Invariant Derived loop invariant: ((((1 <= i) && (len <= 2147483647)) && (1 <= len)) || (((i == 0) && (len <= 2147483647)) && (1 <= len))) RESULT: Ultimate proved your program to be correct! [2024-10-11 20:23:11,401 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE