./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/array-crafted/xor4.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/array-crafted/xor4.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 90b7e6947bda838aad0c5e01877b9a712c46c1a2dc1a2af9f1fb1c6266593b6a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 18:31:12,931 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 18:31:12,982 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-10 18:31:12,989 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 18:31:12,989 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 18:31:13,013 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 18:31:13,013 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 18:31:13,014 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 18:31:13,014 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 18:31:13,014 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 18:31:13,015 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 18:31:13,015 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 18:31:13,016 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 18:31:13,018 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 18:31:13,019 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 18:31:13,019 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 18:31:13,019 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 18:31:13,019 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 18:31:13,020 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 18:31:13,020 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 18:31:13,022 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 18:31:13,022 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 18:31:13,022 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 18:31:13,022 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 18:31:13,023 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 18:31:13,023 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-10 18:31:13,023 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 18:31:13,023 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 18:31:13,023 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 18:31:13,024 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 18:31:13,024 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 18:31:13,024 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 18:31:13,024 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 18:31:13,024 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 18:31:13,024 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 18:31:13,025 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 18:31:13,025 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 18:31:13,025 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 18:31:13,025 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 18:31:13,025 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 18:31:13,025 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 18:31:13,026 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 18:31:13,027 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 18:31:13,027 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 18:31:13,027 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 90b7e6947bda838aad0c5e01877b9a712c46c1a2dc1a2af9f1fb1c6266593b6a [2024-11-10 18:31:13,257 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 18:31:13,285 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 18:31:13,288 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 18:31:13,289 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 18:31:13,289 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 18:31:13,290 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-crafted/xor4.i [2024-11-10 18:31:14,590 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 18:31:14,748 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 18:31:14,748 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-crafted/xor4.i [2024-11-10 18:31:14,754 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc14d67b5/048e16079ec942f3bf294632151a0e85/FLAG67d1a0d23 [2024-11-10 18:31:14,767 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc14d67b5/048e16079ec942f3bf294632151a0e85 [2024-11-10 18:31:14,770 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 18:31:14,772 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 18:31:14,773 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 18:31:14,773 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 18:31:14,777 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 18:31:14,778 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:31:14" (1/1) ... [2024-11-10 18:31:14,778 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5259a68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:31:14, skipping insertion in model container [2024-11-10 18:31:14,778 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:31:14" (1/1) ... [2024-11-10 18:31:14,797 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 18:31:14,937 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 18:31:14,943 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 18:31:14,960 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 18:31:14,975 INFO L204 MainTranslator]: Completed translation [2024-11-10 18:31:14,975 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:31:14 WrapperNode [2024-11-10 18:31:14,975 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 18:31:14,976 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 18:31:14,976 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 18:31:14,976 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 18:31:14,981 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:31:14" (1/1) ... [2024-11-10 18:31:14,987 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:31:14" (1/1) ... [2024-11-10 18:31:15,001 INFO L138 Inliner]: procedures = 16, calls = 31, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 82 [2024-11-10 18:31:15,001 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 18:31:15,002 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 18:31:15,002 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 18:31:15,002 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 18:31:15,010 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:31:14" (1/1) ... [2024-11-10 18:31:15,010 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:31:14" (1/1) ... [2024-11-10 18:31:15,012 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:31:14" (1/1) ... [2024-11-10 18:31:15,025 INFO L175 MemorySlicer]: Split 20 memory accesses to 3 slices as follows [2, 7, 11]. 55 percent of accesses are in the largest equivalence class. The 9 initializations are split as follows [2, 7, 0]. The 5 writes are split as follows [0, 0, 5]. [2024-11-10 18:31:15,026 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:31:14" (1/1) ... [2024-11-10 18:31:15,026 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:31:14" (1/1) ... [2024-11-10 18:31:15,030 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:31:14" (1/1) ... [2024-11-10 18:31:15,031 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:31:14" (1/1) ... [2024-11-10 18:31:15,032 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:31:14" (1/1) ... [2024-11-10 18:31:15,032 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:31:14" (1/1) ... [2024-11-10 18:31:15,034 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 18:31:15,035 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 18:31:15,035 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 18:31:15,035 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 18:31:15,036 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:31:14" (1/1) ... [2024-11-10 18:31:15,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 18:31:15,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:31:15,071 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 18:31:15,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 18:31:15,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 18:31:15,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 18:31:15,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 18:31:15,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-10 18:31:15,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-10 18:31:15,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 18:31:15,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 18:31:15,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-10 18:31:15,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 18:31:15,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 18:31:15,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 18:31:15,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 18:31:15,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-10 18:31:15,126 INFO L130 BoogieDeclarations]: Found specification of procedure xor [2024-11-10 18:31:15,126 INFO L138 BoogieDeclarations]: Found implementation of procedure xor [2024-11-10 18:31:15,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 18:31:15,187 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 18:31:15,188 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 18:31:15,341 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L31: call ULTIMATE.dealloc(main_~#x~0#1.base, main_~#x~0#1.offset);havoc main_~#x~0#1.base, main_~#x~0#1.offset; [2024-11-10 18:31:15,402 INFO L? ?]: Removed 33 outVars from TransFormulas that were not future-live. [2024-11-10 18:31:15,402 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 18:31:15,421 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 18:31:15,421 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 18:31:15,422 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:31:15 BoogieIcfgContainer [2024-11-10 18:31:15,422 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 18:31:15,424 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 18:31:15,424 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 18:31:15,430 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 18:31:15,431 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 06:31:14" (1/3) ... [2024-11-10 18:31:15,431 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55995d4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:31:15, skipping insertion in model container [2024-11-10 18:31:15,432 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:31:14" (2/3) ... [2024-11-10 18:31:15,432 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55995d4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:31:15, skipping insertion in model container [2024-11-10 18:31:15,433 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:31:15" (3/3) ... [2024-11-10 18:31:15,434 INFO L112 eAbstractionObserver]: Analyzing ICFG xor4.i [2024-11-10 18:31:15,447 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 18:31:15,447 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-11-10 18:31:15,489 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 18:31:15,495 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;@9e9c765, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 18:31:15,495 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-10 18:31:15,498 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 39 states have (on average 1.4871794871794872) internal successors, (58), 47 states have internal predecessors, (58), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-10 18:31:15,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-10 18:31:15,502 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:31:15,503 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-10 18:31:15,503 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-10 18:31:15,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:31:15,507 INFO L85 PathProgramCache]: Analyzing trace with hash 69631460, now seen corresponding path program 1 times [2024-11-10 18:31:15,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:31:15,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689739878] [2024-11-10 18:31:15,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:31:15,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:31:15,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:31:15,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:31:15,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:31:15,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689739878] [2024-11-10 18:31:15,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689739878] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:31:15,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:31:15,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 18:31:15,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061506410] [2024-11-10 18:31:15,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:31:15,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 18:31:15,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:31:15,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 18:31:15,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:31:15,761 INFO L87 Difference]: Start difference. First operand has 52 states, 39 states have (on average 1.4871794871794872) internal successors, (58), 47 states have internal predecessors, (58), 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) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:31:15,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:31:15,819 INFO L93 Difference]: Finished difference Result 101 states and 128 transitions. [2024-11-10 18:31:15,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 18:31:15,827 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-10 18:31:15,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:31:15,834 INFO L225 Difference]: With dead ends: 101 [2024-11-10 18:31:15,834 INFO L226 Difference]: Without dead ends: 49 [2024-11-10 18:31:15,837 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:31:15,839 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 2 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 18:31:15,840 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 151 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 18:31:15,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2024-11-10 18:31:15,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 48. [2024-11-10 18:31:15,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 36 states have (on average 1.3888888888888888) internal successors, (50), 44 states have internal predecessors, (50), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-10 18:31:15,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 55 transitions. [2024-11-10 18:31:15,870 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 55 transitions. Word has length 5 [2024-11-10 18:31:15,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:31:15,870 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 55 transitions. [2024-11-10 18:31:15,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:31:15,871 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 55 transitions. [2024-11-10 18:31:15,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-10 18:31:15,871 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:31:15,872 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-10 18:31:15,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 18:31:15,872 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-10 18:31:15,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:31:15,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1988975266, now seen corresponding path program 1 times [2024-11-10 18:31:15,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:31:15,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142310473] [2024-11-10 18:31:15,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:31:15,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:31:15,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:31:16,051 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:31:16,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:31:16,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142310473] [2024-11-10 18:31:16,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142310473] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:31:16,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1587303870] [2024-11-10 18:31:16,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:31:16,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:31:16,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:31:16,058 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:31:16,063 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 18:31:16,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:31:16,111 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 18:31:16,114 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:31:16,179 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:31:16,179 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 18:31:16,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1587303870] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:31:16,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 18:31:16,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-10 18:31:16,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180360842] [2024-11-10 18:31:16,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:31:16,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 18:31:16,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:31:16,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 18:31:16,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-10 18:31:16,181 INFO L87 Difference]: Start difference. First operand 48 states and 55 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:31:16,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:31:16,221 INFO L93 Difference]: Finished difference Result 49 states and 56 transitions. [2024-11-10 18:31:16,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 18:31:16,222 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-10 18:31:16,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:31:16,222 INFO L225 Difference]: With dead ends: 49 [2024-11-10 18:31:16,222 INFO L226 Difference]: Without dead ends: 48 [2024-11-10 18:31:16,223 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-10 18:31:16,223 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 2 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 18:31:16,224 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 171 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 18:31:16,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2024-11-10 18:31:16,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 47. [2024-11-10 18:31:16,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 43 states have internal predecessors, (49), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-10 18:31:16,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 54 transitions. [2024-11-10 18:31:16,235 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 54 transitions. Word has length 10 [2024-11-10 18:31:16,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:31:16,235 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 54 transitions. [2024-11-10 18:31:16,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:31:16,235 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 54 transitions. [2024-11-10 18:31:16,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-10 18:31:16,235 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:31:16,235 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2024-11-10 18:31:16,261 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-10 18:31:16,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:31:16,438 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-10 18:31:16,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:31:16,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1528691104, now seen corresponding path program 1 times [2024-11-10 18:31:16,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:31:16,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911708576] [2024-11-10 18:31:16,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:31:16,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:31:16,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:31:16,507 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 18:31:16,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:31:16,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911708576] [2024-11-10 18:31:16,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911708576] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:31:16,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:31:16,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 18:31:16,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766634473] [2024-11-10 18:31:16,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:31:16,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 18:31:16,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:31:16,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 18:31:16,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 18:31:16,514 INFO L87 Difference]: Start difference. First operand 47 states and 54 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:31:16,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:31:16,532 INFO L93 Difference]: Finished difference Result 47 states and 54 transitions. [2024-11-10 18:31:16,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 18:31:16,532 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-10 18:31:16,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:31:16,532 INFO L225 Difference]: With dead ends: 47 [2024-11-10 18:31:16,532 INFO L226 Difference]: Without dead ends: 46 [2024-11-10 18:31:16,533 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 18:31:16,533 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 1 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 18:31:16,537 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 88 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 18:31:16,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-11-10 18:31:16,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 44. [2024-11-10 18:31:16,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 34 states have (on average 1.3529411764705883) internal successors, (46), 40 states have internal predecessors, (46), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-10 18:31:16,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 51 transitions. [2024-11-10 18:31:16,545 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 51 transitions. Word has length 11 [2024-11-10 18:31:16,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:31:16,545 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 51 transitions. [2024-11-10 18:31:16,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:31:16,546 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 51 transitions. [2024-11-10 18:31:16,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-10 18:31:16,549 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:31:16,549 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:31:16,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 18:31:16,549 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting xorErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-10 18:31:16,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:31:16,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1943216837, now seen corresponding path program 1 times [2024-11-10 18:31:16,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:31:16,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141232389] [2024-11-10 18:31:16,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:31:16,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:31:16,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:31:16,629 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:31:16,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:31:16,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141232389] [2024-11-10 18:31:16,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141232389] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:31:16,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [241250450] [2024-11-10 18:31:16,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:31:16,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:31:16,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:31:16,649 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:31:16,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 18:31:16,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:31:16,702 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 18:31:16,704 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:31:16,732 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:31:16,732 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:31:16,763 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:31:16,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [241250450] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:31:16,764 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:31:16,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-10 18:31:16,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763406506] [2024-11-10 18:31:16,764 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:31:16,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 18:31:16,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:31:16,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 18:31:16,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-10 18:31:16,766 INFO L87 Difference]: Start difference. First operand 44 states and 51 transitions. Second operand has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:31:16,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:31:16,803 INFO L93 Difference]: Finished difference Result 89 states and 104 transitions. [2024-11-10 18:31:16,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 18:31:16,804 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2024-11-10 18:31:16,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:31:16,805 INFO L225 Difference]: With dead ends: 89 [2024-11-10 18:31:16,805 INFO L226 Difference]: Without dead ends: 54 [2024-11-10 18:31:16,806 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-10 18:31:16,806 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 0 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 18:31:16,807 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 211 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 18:31:16,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-11-10 18:31:16,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2024-11-10 18:31:16,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 44 states have (on average 1.2727272727272727) internal successors, (56), 50 states have internal predecessors, (56), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-10 18:31:16,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 61 transitions. [2024-11-10 18:31:16,815 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 61 transitions. Word has length 17 [2024-11-10 18:31:16,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:31:16,815 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 61 transitions. [2024-11-10 18:31:16,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:31:16,816 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 61 transitions. [2024-11-10 18:31:16,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-10 18:31:16,817 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:31:16,817 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:31:16,830 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-10 18:31:17,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-10 18:31:17,018 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting xorErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-10 18:31:17,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:31:17,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1566245883, now seen corresponding path program 2 times [2024-11-10 18:31:17,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:31:17,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738341388] [2024-11-10 18:31:17,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:31:17,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:31:17,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:31:17,104 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-10 18:31:17,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:31:17,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738341388] [2024-11-10 18:31:17,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738341388] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:31:17,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:31:17,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 18:31:17,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951473764] [2024-11-10 18:31:17,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:31:17,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 18:31:17,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:31:17,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 18:31:17,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:31:17,109 INFO L87 Difference]: Start difference. First operand 54 states and 61 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:31:17,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:31:17,150 INFO L93 Difference]: Finished difference Result 97 states and 117 transitions. [2024-11-10 18:31:17,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 18:31:17,151 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2024-11-10 18:31:17,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:31:17,152 INFO L225 Difference]: With dead ends: 97 [2024-11-10 18:31:17,152 INFO L226 Difference]: Without dead ends: 64 [2024-11-10 18:31:17,153 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:31:17,153 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 8 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 18:31:17,153 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 125 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 18:31:17,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2024-11-10 18:31:17,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 63. [2024-11-10 18:31:17,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 53 states have (on average 1.2830188679245282) internal successors, (68), 59 states have internal predecessors, (68), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-10 18:31:17,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 73 transitions. [2024-11-10 18:31:17,166 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 73 transitions. Word has length 27 [2024-11-10 18:31:17,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:31:17,167 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 73 transitions. [2024-11-10 18:31:17,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:31:17,167 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 73 transitions. [2024-11-10 18:31:17,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-10 18:31:17,168 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:31:17,168 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:31:17,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 18:31:17,168 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting xorErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-10 18:31:17,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:31:17,169 INFO L85 PathProgramCache]: Analyzing trace with hash 337152379, now seen corresponding path program 1 times [2024-11-10 18:31:17,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:31:17,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339881269] [2024-11-10 18:31:17,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:31:17,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:31:17,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:31:17,291 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-10 18:31:17,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:31:17,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339881269] [2024-11-10 18:31:17,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339881269] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:31:17,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1153506710] [2024-11-10 18:31:17,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:31:17,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:31:17,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:31:17,295 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:31:17,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-10 18:31:17,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:31:17,348 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-10 18:31:17,349 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:31:17,387 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-10 18:31:17,387 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:31:17,468 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-10 18:31:17,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1153506710] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:31:17,469 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:31:17,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-10 18:31:17,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748259195] [2024-11-10 18:31:17,469 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:31:17,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-10 18:31:17,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:31:17,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-10 18:31:17,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-10 18:31:17,471 INFO L87 Difference]: Start difference. First operand 63 states and 73 transitions. Second operand has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 18 states have internal predecessors, (53), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:31:17,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:31:17,527 INFO L93 Difference]: Finished difference Result 127 states and 150 transitions. [2024-11-10 18:31:17,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 18:31:17,527 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 18 states have internal predecessors, (53), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2024-11-10 18:31:17,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:31:17,528 INFO L225 Difference]: With dead ends: 127 [2024-11-10 18:31:17,528 INFO L226 Difference]: Without dead ends: 83 [2024-11-10 18:31:17,529 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-10 18:31:17,529 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 0 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 18:31:17,530 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 340 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 18:31:17,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-11-10 18:31:17,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2024-11-10 18:31:17,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 73 states have (on average 1.2054794520547945) internal successors, (88), 79 states have internal predecessors, (88), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-10 18:31:17,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 93 transitions. [2024-11-10 18:31:17,535 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 93 transitions. Word has length 34 [2024-11-10 18:31:17,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:31:17,535 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 93 transitions. [2024-11-10 18:31:17,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 18 states have internal predecessors, (53), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:31:17,535 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 93 transitions. [2024-11-10 18:31:17,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-10 18:31:17,536 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:31:17,536 INFO L215 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 7, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:31:17,549 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-10 18:31:17,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:31:17,741 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting xorErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-10 18:31:17,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:31:17,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1617667077, now seen corresponding path program 2 times [2024-11-10 18:31:17,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:31:17,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071743701] [2024-11-10 18:31:17,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:31:17,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:31:17,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:31:18,112 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-10 18:31:18,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:31:18,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071743701] [2024-11-10 18:31:18,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071743701] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:31:18,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1465781716] [2024-11-10 18:31:18,113 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 18:31:18,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:31:18,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:31:18,115 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:31:18,119 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-10 18:31:18,186 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-10 18:31:18,187 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:31:18,190 INFO L255 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-10 18:31:18,192 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:31:18,272 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-10 18:31:18,272 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:31:18,617 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-10 18:31:18,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1465781716] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:31:18,618 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:31:18,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2024-11-10 18:31:18,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197039795] [2024-11-10 18:31:18,618 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:31:18,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-10 18:31:18,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:31:18,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-10 18:31:18,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2024-11-10 18:31:18,620 INFO L87 Difference]: Start difference. First operand 83 states and 93 transitions. Second operand has 34 states, 34 states have (on average 2.735294117647059) internal successors, (93), 34 states have internal predecessors, (93), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:31:18,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:31:18,711 INFO L93 Difference]: Finished difference Result 167 states and 194 transitions. [2024-11-10 18:31:18,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-10 18:31:18,711 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.735294117647059) internal successors, (93), 34 states have internal predecessors, (93), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2024-11-10 18:31:18,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:31:18,712 INFO L225 Difference]: With dead ends: 167 [2024-11-10 18:31:18,712 INFO L226 Difference]: Without dead ends: 123 [2024-11-10 18:31:18,713 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2024-11-10 18:31:18,713 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 0 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 18:31:18,714 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 601 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 18:31:18,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-11-10 18:31:18,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2024-11-10 18:31:18,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 113 states have (on average 1.1327433628318584) internal successors, (128), 119 states have internal predecessors, (128), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-10 18:31:18,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 133 transitions. [2024-11-10 18:31:18,719 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 133 transitions. Word has length 54 [2024-11-10 18:31:18,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:31:18,719 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 133 transitions. [2024-11-10 18:31:18,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.735294117647059) internal successors, (93), 34 states have internal predecessors, (93), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:31:18,720 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 133 transitions. [2024-11-10 18:31:18,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-10 18:31:18,722 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:31:18,723 INFO L215 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:31:18,739 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-10 18:31:18,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:31:18,925 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting xorErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-10 18:31:18,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:31:18,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1296384251, now seen corresponding path program 3 times [2024-11-10 18:31:18,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:31:18,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139734737] [2024-11-10 18:31:18,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:31:18,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:31:18,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:31:19,647 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 0 proven. 555 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-10 18:31:19,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:31:19,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139734737] [2024-11-10 18:31:19,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139734737] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:31:19,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [711174526] [2024-11-10 18:31:19,648 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-10 18:31:19,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:31:19,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:31:19,649 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:31:19,651 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-10 18:31:19,714 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-10 18:31:19,714 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:31:19,715 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 18:31:19,717 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:31:19,800 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2024-11-10 18:31:19,800 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 18:31:19,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [711174526] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:31:19,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 18:31:19,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [33] total 37 [2024-11-10 18:31:19,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836701379] [2024-11-10 18:31:19,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:31:19,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 18:31:19,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:31:19,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 18:31:19,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=298, Invalid=1034, Unknown=0, NotChecked=0, Total=1332 [2024-11-10 18:31:19,803 INFO L87 Difference]: Start difference. First operand 123 states and 133 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:31:19,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:31:19,827 INFO L93 Difference]: Finished difference Result 124 states and 134 transitions. [2024-11-10 18:31:19,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 18:31:19,827 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-11-10 18:31:19,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:31:19,828 INFO L225 Difference]: With dead ends: 124 [2024-11-10 18:31:19,828 INFO L226 Difference]: Without dead ends: 123 [2024-11-10 18:31:19,829 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=298, Invalid=1034, Unknown=0, NotChecked=0, Total=1332 [2024-11-10 18:31:19,829 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 14 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 18:31:19,829 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 180 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 18:31:19,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-11-10 18:31:19,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 122. [2024-11-10 18:31:19,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 113 states have (on average 1.1238938053097345) internal successors, (127), 118 states have internal predecessors, (127), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-10 18:31:19,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 132 transitions. [2024-11-10 18:31:19,839 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 132 transitions. Word has length 94 [2024-11-10 18:31:19,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:31:19,839 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 132 transitions. [2024-11-10 18:31:19,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:31:19,839 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 132 transitions. [2024-11-10 18:31:19,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-10 18:31:19,840 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:31:19,840 INFO L215 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:31:19,868 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-10 18:31:20,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:31:20,042 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting xorErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-10 18:31:20,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:31:20,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1533206134, now seen corresponding path program 1 times [2024-11-10 18:31:20,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:31:20,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930538711] [2024-11-10 18:31:20,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:31:20,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:31:20,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:31:20,111 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 557 trivial. 0 not checked. [2024-11-10 18:31:20,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:31:20,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930538711] [2024-11-10 18:31:20,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930538711] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:31:20,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:31:20,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 18:31:20,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889216056] [2024-11-10 18:31:20,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:31:20,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 18:31:20,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:31:20,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 18:31:20,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:31:20,113 INFO L87 Difference]: Start difference. First operand 122 states and 132 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:31:20,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:31:20,128 INFO L93 Difference]: Finished difference Result 122 states and 132 transitions. [2024-11-10 18:31:20,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 18:31:20,129 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-11-10 18:31:20,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:31:20,129 INFO L225 Difference]: With dead ends: 122 [2024-11-10 18:31:20,130 INFO L226 Difference]: Without dead ends: 119 [2024-11-10 18:31:20,130 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:31:20,130 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 8 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 18:31:20,130 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 115 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 18:31:20,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-11-10 18:31:20,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 112. [2024-11-10 18:31:20,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 105 states have (on average 1.0857142857142856) internal successors, (114), 108 states have internal predecessors, (114), 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) [2024-11-10 18:31:20,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 118 transitions. [2024-11-10 18:31:20,137 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 118 transitions. Word has length 95 [2024-11-10 18:31:20,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:31:20,137 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 118 transitions. [2024-11-10 18:31:20,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:31:20,138 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 118 transitions. [2024-11-10 18:31:20,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-10 18:31:20,139 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:31:20,139 INFO L215 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:31:20,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 18:31:20,139 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-10 18:31:20,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:31:20,140 INFO L85 PathProgramCache]: Analyzing trace with hash 2090002809, now seen corresponding path program 1 times [2024-11-10 18:31:20,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:31:20,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220565476] [2024-11-10 18:31:20,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:31:20,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:31:20,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:31:20,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-10 18:31:20,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:31:20,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-10 18:31:20,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:31:20,291 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 558 trivial. 0 not checked. [2024-11-10 18:31:20,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:31:20,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220565476] [2024-11-10 18:31:20,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220565476] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:31:20,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [448401420] [2024-11-10 18:31:20,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:31:20,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:31:20,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:31:20,294 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:31:20,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-10 18:31:20,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:31:20,392 INFO L255 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-10 18:31:20,394 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:31:20,408 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 576 trivial. 0 not checked. [2024-11-10 18:31:20,408 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 18:31:20,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [448401420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:31:20,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 18:31:20,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-10 18:31:20,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384308054] [2024-11-10 18:31:20,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:31:20,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 18:31:20,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:31:20,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 18:31:20,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 18:31:20,410 INFO L87 Difference]: Start difference. First operand 112 states and 118 transitions. Second operand has 3 states, 2 states have (on average 12.5) 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) [2024-11-10 18:31:20,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:31:20,439 INFO L93 Difference]: Finished difference Result 118 states and 125 transitions. [2024-11-10 18:31:20,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 18:31:20,440 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) 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 113 [2024-11-10 18:31:20,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:31:20,443 INFO L225 Difference]: With dead ends: 118 [2024-11-10 18:31:20,443 INFO L226 Difference]: Without dead ends: 117 [2024-11-10 18:31:20,443 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 18:31:20,444 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 2 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 18:31:20,444 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 72 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 18:31:20,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-10 18:31:20,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 115. [2024-11-10 18:31:20,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 108 states have (on average 1.0833333333333333) internal successors, (117), 111 states have internal predecessors, (117), 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) [2024-11-10 18:31:20,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 121 transitions. [2024-11-10 18:31:20,448 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 121 transitions. Word has length 113 [2024-11-10 18:31:20,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:31:20,454 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 121 transitions. [2024-11-10 18:31:20,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) 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) [2024-11-10 18:31:20,454 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 121 transitions. [2024-11-10 18:31:20,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-10 18:31:20,455 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:31:20,455 INFO L215 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:31:20,473 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-10 18:31:20,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:31:20,658 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-10 18:31:20,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:31:20,659 INFO L85 PathProgramCache]: Analyzing trace with hash 365577627, now seen corresponding path program 1 times [2024-11-10 18:31:20,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:31:20,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113495226] [2024-11-10 18:31:20,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:31:20,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:31:20,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:31:20,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-10 18:31:20,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:31:20,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-10 18:31:20,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:31:20,770 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 558 trivial. 0 not checked. [2024-11-10 18:31:20,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:31:20,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113495226] [2024-11-10 18:31:20,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113495226] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:31:20,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1502864870] [2024-11-10 18:31:20,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:31:20,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:31:20,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:31:20,776 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:31:20,777 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-10 18:31:20,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:31:20,879 INFO L255 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-10 18:31:20,881 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:31:20,927 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 576 trivial. 0 not checked. [2024-11-10 18:31:20,927 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 18:31:20,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1502864870] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:31:20,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 18:31:20,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-10 18:31:20,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129099587] [2024-11-10 18:31:20,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:31:20,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 18:31:20,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:31:20,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 18:31:20,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 18:31:20,928 INFO L87 Difference]: Start difference. First operand 115 states and 121 transitions. Second operand has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-10 18:31:20,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:31:20,946 INFO L93 Difference]: Finished difference Result 118 states and 124 transitions. [2024-11-10 18:31:20,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 18:31:20,946 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 114 [2024-11-10 18:31:20,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:31:20,951 INFO L225 Difference]: With dead ends: 118 [2024-11-10 18:31:20,951 INFO L226 Difference]: Without dead ends: 117 [2024-11-10 18:31:20,951 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 18:31:20,952 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 1 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 18:31:20,952 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 73 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 18:31:20,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-10 18:31:20,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 116. [2024-11-10 18:31:20,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 109 states have (on average 1.0825688073394495) internal successors, (118), 112 states have internal predecessors, (118), 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) [2024-11-10 18:31:20,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 122 transitions. [2024-11-10 18:31:20,961 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 122 transitions. Word has length 114 [2024-11-10 18:31:20,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:31:20,961 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 122 transitions. [2024-11-10 18:31:20,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-10 18:31:20,961 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 122 transitions. [2024-11-10 18:31:20,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-10 18:31:20,965 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:31:20,965 INFO L215 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:31:20,979 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-10 18:31:21,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:31:21,166 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-10 18:31:21,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:31:21,167 INFO L85 PathProgramCache]: Analyzing trace with hash -867219143, now seen corresponding path program 1 times [2024-11-10 18:31:21,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:31:21,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66424273] [2024-11-10 18:31:21,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:31:21,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:31:21,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:31:21,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-10 18:31:21,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:31:21,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-10 18:31:21,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:31:21,265 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 558 trivial. 0 not checked. [2024-11-10 18:31:21,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:31:21,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66424273] [2024-11-10 18:31:21,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66424273] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:31:21,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1230702140] [2024-11-10 18:31:21,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:31:21,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:31:21,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:31:21,267 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:31:21,272 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-10 18:31:21,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:31:21,369 INFO L255 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-10 18:31:21,371 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:31:22,070 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 0 proven. 555 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-10 18:31:22,070 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:31:23,040 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 0 proven. 555 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-10 18:31:23,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1230702140] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:31:23,040 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:31:23,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 33, 33] total 67 [2024-11-10 18:31:23,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284930510] [2024-11-10 18:31:23,041 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:31:23,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2024-11-10 18:31:23,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:31:23,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2024-11-10 18:31:23,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1063, Invalid=3359, Unknown=0, NotChecked=0, Total=4422 [2024-11-10 18:31:23,043 INFO L87 Difference]: Start difference. First operand 116 states and 122 transitions. Second operand has 67 states, 67 states have (on average 3.074626865671642) internal successors, (206), 67 states have internal predecessors, (206), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-10 18:31:23,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:31:23,211 INFO L93 Difference]: Finished difference Result 248 states and 284 transitions. [2024-11-10 18:31:23,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2024-11-10 18:31:23,212 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 3.074626865671642) internal successors, (206), 67 states have internal predecessors, (206), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 116 [2024-11-10 18:31:23,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:31:23,213 INFO L225 Difference]: With dead ends: 248 [2024-11-10 18:31:23,213 INFO L226 Difference]: Without dead ends: 211 [2024-11-10 18:31:23,214 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1171 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1063, Invalid=3359, Unknown=0, NotChecked=0, Total=4422 [2024-11-10 18:31:23,215 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 14 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 18:31:23,215 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 422 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 18:31:23,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2024-11-10 18:31:23,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 206. [2024-11-10 18:31:23,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 199 states have (on average 1.0603015075376885) internal successors, (211), 202 states have internal predecessors, (211), 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) [2024-11-10 18:31:23,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 215 transitions. [2024-11-10 18:31:23,220 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 215 transitions. Word has length 116 [2024-11-10 18:31:23,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:31:23,220 INFO L471 AbstractCegarLoop]: Abstraction has 206 states and 215 transitions. [2024-11-10 18:31:23,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 3.074626865671642) internal successors, (206), 67 states have internal predecessors, (206), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-10 18:31:23,220 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 215 transitions. [2024-11-10 18:31:23,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-10 18:31:23,221 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:31:23,221 INFO L215 NwaCegarLoop]: trace histogram [32, 31, 31, 31, 31, 6, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:31:23,234 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-10 18:31:23,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-10 18:31:23,423 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-10 18:31:23,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:31:23,423 INFO L85 PathProgramCache]: Analyzing trace with hash -254165571, now seen corresponding path program 2 times [2024-11-10 18:31:23,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:31:23,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635513256] [2024-11-10 18:31:23,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:31:23,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:31:23,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:31:23,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-10 18:31:23,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:31:23,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-11-10 18:31:23,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:31:23,567 INFO L134 CoverageAnalysis]: Checked inductivity of 2451 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2451 trivial. 0 not checked. [2024-11-10 18:31:23,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:31:23,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635513256] [2024-11-10 18:31:23,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635513256] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:31:23,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:31:23,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 18:31:23,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305642447] [2024-11-10 18:31:23,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:31:23,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 18:31:23,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:31:23,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 18:31:23,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:31:23,573 INFO L87 Difference]: Start difference. First operand 206 states and 215 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-10 18:31:23,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:31:23,607 INFO L93 Difference]: Finished difference Result 212 states and 221 transitions. [2024-11-10 18:31:23,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 18:31:23,607 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 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 210 [2024-11-10 18:31:23,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:31:23,608 INFO L225 Difference]: With dead ends: 212 [2024-11-10 18:31:23,609 INFO L226 Difference]: Without dead ends: 210 [2024-11-10 18:31:23,609 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:31:23,609 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 2 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 18:31:23,613 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 101 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 18:31:23,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2024-11-10 18:31:23,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 209. [2024-11-10 18:31:23,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 202 states have (on average 1.0594059405940595) internal successors, (214), 205 states have internal predecessors, (214), 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) [2024-11-10 18:31:23,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 218 transitions. [2024-11-10 18:31:23,621 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 218 transitions. Word has length 210 [2024-11-10 18:31:23,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:31:23,621 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 218 transitions. [2024-11-10 18:31:23,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-10 18:31:23,621 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 218 transitions. [2024-11-10 18:31:23,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-11-10 18:31:23,623 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:31:23,623 INFO L215 NwaCegarLoop]: trace histogram [32, 31, 31, 31, 31, 6, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:31:23,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-10 18:31:23,623 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-10 18:31:23,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:31:23,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1950382779, now seen corresponding path program 1 times [2024-11-10 18:31:23,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:31:23,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913955903] [2024-11-10 18:31:23,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:31:23,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:31:23,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:31:23,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-10 18:31:23,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:31:23,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-11-10 18:31:23,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:31:23,880 INFO L134 CoverageAnalysis]: Checked inductivity of 2454 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2451 trivial. 0 not checked. [2024-11-10 18:31:23,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:31:23,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913955903] [2024-11-10 18:31:23,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913955903] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:31:23,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1549376520] [2024-11-10 18:31:23,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:31:23,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:31:23,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:31:23,886 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:31:23,887 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-10 18:31:24,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:31:24,033 INFO L255 TraceCheckSpWp]: Trace formula consists of 625 conjuncts, 64 conjuncts are in the unsatisfiable core [2024-11-10 18:31:24,036 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:31:26,246 INFO L134 CoverageAnalysis]: Checked inductivity of 2454 backedges. 0 proven. 2387 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-11-10 18:31:26,246 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:31:29,188 INFO L134 CoverageAnalysis]: Checked inductivity of 2454 backedges. 0 proven. 2387 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-11-10 18:31:29,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1549376520] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:31:29,188 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:31:29,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 65, 65] total 131 [2024-11-10 18:31:29,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161433417] [2024-11-10 18:31:29,189 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:31:29,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 131 states [2024-11-10 18:31:29,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:31:29,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 131 interpolants. [2024-11-10 18:31:29,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4166, Invalid=12864, Unknown=0, NotChecked=0, Total=17030 [2024-11-10 18:31:29,195 INFO L87 Difference]: Start difference. First operand 209 states and 218 transitions. Second operand has 131 states, 131 states have (on average 2.8396946564885495) internal successors, (372), 131 states have internal predecessors, (372), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-10 18:31:29,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:31:29,549 INFO L93 Difference]: Finished difference Result 425 states and 476 transitions. [2024-11-10 18:31:29,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2024-11-10 18:31:29,550 INFO L78 Accepts]: Start accepts. Automaton has has 131 states, 131 states have (on average 2.8396946564885495) internal successors, (372), 131 states have internal predecessors, (372), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 215 [2024-11-10 18:31:29,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:31:29,552 INFO L225 Difference]: With dead ends: 425 [2024-11-10 18:31:29,552 INFO L226 Difference]: Without dead ends: 375 [2024-11-10 18:31:29,555 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 307 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4773 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=4166, Invalid=12864, Unknown=0, NotChecked=0, Total=17030 [2024-11-10 18:31:29,555 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 2 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 18:31:29,556 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 423 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 18:31:29,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2024-11-10 18:31:29,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 373. [2024-11-10 18:31:29,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 366 states have (on average 1.0327868852459017) internal successors, (378), 369 states have internal predecessors, (378), 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) [2024-11-10 18:31:29,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 382 transitions. [2024-11-10 18:31:29,562 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 382 transitions. Word has length 215 [2024-11-10 18:31:29,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:31:29,562 INFO L471 AbstractCegarLoop]: Abstraction has 373 states and 382 transitions. [2024-11-10 18:31:29,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 131 states, 131 states have (on average 2.8396946564885495) internal successors, (372), 131 states have internal predecessors, (372), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-10 18:31:29,562 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 382 transitions. [2024-11-10 18:31:29,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2024-11-10 18:31:29,565 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:31:29,565 INFO L215 NwaCegarLoop]: trace histogram [64, 63, 63, 63, 63, 6, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:31:29,580 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-10 18:31:29,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-10 18:31:29,766 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-10 18:31:29,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:31:29,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1404530841, now seen corresponding path program 1 times [2024-11-10 18:31:29,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:31:29,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002045236] [2024-11-10 18:31:29,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:31:29,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:31:29,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:31:29,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2024-11-10 18:31:29,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:31:29,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2024-11-10 18:31:29,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:31:29,924 INFO L134 CoverageAnalysis]: Checked inductivity of 9959 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9957 trivial. 0 not checked. [2024-11-10 18:31:29,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:31:29,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002045236] [2024-11-10 18:31:29,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002045236] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:31:29,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:31:29,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 18:31:29,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126957311] [2024-11-10 18:31:29,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:31:29,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 18:31:29,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:31:29,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 18:31:29,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 18:31:29,927 INFO L87 Difference]: Start difference. First operand 373 states and 382 transitions. Second operand has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-10 18:31:29,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:31:29,938 INFO L93 Difference]: Finished difference Result 373 states and 382 transitions. [2024-11-10 18:31:29,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 18:31:29,939 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 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 376 [2024-11-10 18:31:29,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:31:29,940 INFO L225 Difference]: With dead ends: 373 [2024-11-10 18:31:29,940 INFO L226 Difference]: Without dead ends: 372 [2024-11-10 18:31:29,941 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 18:31:29,942 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 2 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 18:31:29,942 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 71 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 18:31:29,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2024-11-10 18:31:29,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 372. [2024-11-10 18:31:29,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 366 states have (on average 1.030054644808743) internal successors, (377), 368 states have internal predecessors, (377), 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) [2024-11-10 18:31:29,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 381 transitions. [2024-11-10 18:31:29,947 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 381 transitions. Word has length 376 [2024-11-10 18:31:29,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:31:29,948 INFO L471 AbstractCegarLoop]: Abstraction has 372 states and 381 transitions. [2024-11-10 18:31:29,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-10 18:31:29,948 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 381 transitions. [2024-11-10 18:31:29,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2024-11-10 18:31:29,951 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:31:29,952 INFO L215 NwaCegarLoop]: trace histogram [64, 63, 63, 63, 63, 6, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:31:29,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-10 18:31:29,952 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-10 18:31:29,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:31:29,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1134406839, now seen corresponding path program 1 times [2024-11-10 18:31:29,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:31:29,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297126838] [2024-11-10 18:31:29,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:31:29,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:31:29,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:31:30,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2024-11-10 18:31:30,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:31:30,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2024-11-10 18:31:30,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:31:30,102 INFO L134 CoverageAnalysis]: Checked inductivity of 9961 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 9958 trivial. 0 not checked. [2024-11-10 18:31:30,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:31:30,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297126838] [2024-11-10 18:31:30,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297126838] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:31:30,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:31:30,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 18:31:30,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932038386] [2024-11-10 18:31:30,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:31:30,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 18:31:30,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:31:30,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 18:31:30,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:31:30,103 INFO L87 Difference]: Start difference. First operand 372 states and 381 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-10 18:31:30,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:31:30,119 INFO L93 Difference]: Finished difference Result 372 states and 381 transitions. [2024-11-10 18:31:30,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 18:31:30,119 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (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 378 [2024-11-10 18:31:30,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:31:30,121 INFO L225 Difference]: With dead ends: 372 [2024-11-10 18:31:30,121 INFO L226 Difference]: Without dead ends: 370 [2024-11-10 18:31:30,121 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:31:30,121 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 4 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 18:31:30,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 92 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 18:31:30,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2024-11-10 18:31:30,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 366. [2024-11-10 18:31:30,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 362 states have (on average 1.0248618784530388) internal successors, (371), 362 states have internal predecessors, (371), 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) [2024-11-10 18:31:30,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 375 transitions. [2024-11-10 18:31:30,155 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 375 transitions. Word has length 378 [2024-11-10 18:31:30,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:31:30,155 INFO L471 AbstractCegarLoop]: Abstraction has 366 states and 375 transitions. [2024-11-10 18:31:30,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-10 18:31:30,155 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 375 transitions. [2024-11-10 18:31:30,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2024-11-10 18:31:30,163 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:31:30,163 INFO L215 NwaCegarLoop]: trace histogram [64, 63, 63, 63, 63, 6, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:31:30,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-10 18:31:30,163 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-10 18:31:30,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:31:30,164 INFO L85 PathProgramCache]: Analyzing trace with hash 806873624, now seen corresponding path program 1 times [2024-11-10 18:31:30,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:31:30,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674504317] [2024-11-10 18:31:30,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:31:30,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:31:30,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:31:30,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2024-11-10 18:31:30,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:31:30,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2024-11-10 18:31:30,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:31:30,467 INFO L134 CoverageAnalysis]: Checked inductivity of 9962 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 9957 trivial. 0 not checked. [2024-11-10 18:31:30,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:31:30,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674504317] [2024-11-10 18:31:30,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674504317] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:31:30,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:31:30,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 18:31:30,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115574683] [2024-11-10 18:31:30,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:31:30,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 18:31:30,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:31:30,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 18:31:30,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:31:30,469 INFO L87 Difference]: Start difference. First operand 366 states and 375 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-10 18:31:30,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:31:30,486 INFO L93 Difference]: Finished difference Result 366 states and 375 transitions. [2024-11-10 18:31:30,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 18:31:30,487 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 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 379 [2024-11-10 18:31:30,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:31:30,488 INFO L225 Difference]: With dead ends: 366 [2024-11-10 18:31:30,488 INFO L226 Difference]: Without dead ends: 0 [2024-11-10 18:31:30,488 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:31:30,489 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 2 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 18:31:30,489 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 93 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 18:31:30,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-10 18:31:30,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-10 18:31:30,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:31:30,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-10 18:31:30,490 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 379 [2024-11-10 18:31:30,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:31:30,490 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-10 18:31:30,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-10 18:31:30,490 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-10 18:31:30,490 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-10 18:31:30,493 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2024-11-10 18:31:30,493 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2024-11-10 18:31:30,493 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2024-11-10 18:31:30,493 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2024-11-10 18:31:30,493 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2024-11-10 18:31:30,494 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2024-11-10 18:31:30,494 INFO L782 garLoopResultBuilder]: Registering result SAFE for location xorErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2024-11-10 18:31:30,494 INFO L782 garLoopResultBuilder]: Registering result SAFE for location xorErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2024-11-10 18:31:30,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-10 18:31:30,496 INFO L407 BasicCegarLoop]: Path program histogram: [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:31:30,498 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-10 18:31:30,562 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-10 18:31:30,573 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 06:31:30 BoogieIcfgContainer [2024-11-10 18:31:30,573 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-10 18:31:30,574 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 18:31:30,574 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 18:31:30,574 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 18:31:30,574 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:31:15" (3/4) ... [2024-11-10 18:31:30,576 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-10 18:31:30,578 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure xor [2024-11-10 18:31:30,583 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2024-11-10 18:31:30,583 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-10 18:31:30,583 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-10 18:31:30,583 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-10 18:31:30,583 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-10 18:31:30,650 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-10 18:31:30,650 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-10 18:31:30,650 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 18:31:30,651 INFO L158 Benchmark]: Toolchain (without parser) took 15878.96ms. Allocated memory was 151.0MB in the beginning and 323.0MB in the end (delta: 172.0MB). Free memory was 81.2MB in the beginning and 144.2MB in the end (delta: -63.0MB). Peak memory consumption was 111.0MB. Max. memory is 16.1GB. [2024-11-10 18:31:30,651 INFO L158 Benchmark]: CDTParser took 0.82ms. Allocated memory is still 151.0MB. Free memory is still 103.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 18:31:30,652 INFO L158 Benchmark]: CACSL2BoogieTranslator took 202.63ms. Allocated memory is still 151.0MB. Free memory was 81.1MB in the beginning and 68.2MB in the end (delta: 12.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-10 18:31:30,652 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.45ms. Allocated memory is still 151.0MB. Free memory was 68.2MB in the beginning and 66.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 18:31:30,652 INFO L158 Benchmark]: Boogie Preprocessor took 32.28ms. Allocated memory is still 151.0MB. Free memory was 66.5MB in the beginning and 64.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 18:31:30,652 INFO L158 Benchmark]: IcfgBuilder took 387.25ms. Allocated memory was 151.0MB in the beginning and 222.3MB in the end (delta: 71.3MB). Free memory was 64.7MB in the beginning and 189.9MB in the end (delta: -125.2MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. [2024-11-10 18:31:30,653 INFO L158 Benchmark]: TraceAbstraction took 15149.68ms. Allocated memory was 222.3MB in the beginning and 323.0MB in the end (delta: 100.7MB). Free memory was 189.9MB in the beginning and 149.3MB in the end (delta: 40.6MB). Peak memory consumption was 142.2MB. Max. memory is 16.1GB. [2024-11-10 18:31:30,653 INFO L158 Benchmark]: Witness Printer took 76.43ms. Allocated memory is still 323.0MB. Free memory was 149.3MB in the beginning and 144.2MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-10 18:31:30,654 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.82ms. Allocated memory is still 151.0MB. Free memory is still 103.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 202.63ms. Allocated memory is still 151.0MB. Free memory was 81.1MB in the beginning and 68.2MB in the end (delta: 12.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.45ms. Allocated memory is still 151.0MB. Free memory was 68.2MB in the beginning and 66.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 32.28ms. Allocated memory is still 151.0MB. Free memory was 66.5MB in the beginning and 64.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 387.25ms. Allocated memory was 151.0MB in the beginning and 222.3MB in the end (delta: 71.3MB). Free memory was 64.7MB in the beginning and 189.9MB in the end (delta: -125.2MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. * TraceAbstraction took 15149.68ms. Allocated memory was 222.3MB in the beginning and 323.0MB in the end (delta: 100.7MB). Free memory was 189.9MB in the beginning and 149.3MB in the end (delta: 40.6MB). Peak memory consumption was 142.2MB. Max. memory is 16.1GB. * Witness Printer took 76.43ms. Allocated memory is still 323.0MB. Free memory was 149.3MB in the beginning and 144.2MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: 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, 52 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 15.0s, OverallIterations: 17, TraceHistogramMax: 64, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 64 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 64 mSDsluCounter, 3329 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2644 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1164 IncrementalHoareTripleChecker+Invalid, 1175 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 685 mSDtfsCounter, 1164 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1331 GetRequests, 1018 SyntacticMatches, 0 SemanticMatches, 313 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6704 ImplicationChecksByTransitivity, 7.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=373occurred in iteration=14, InterpolantAutomatonStates: 297, 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, 17 MinimizatonAttempts, 28 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 10.3s InterpolantComputationTime, 3015 NumberOfCodeBlocks, 2945 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 3420 ConstructedInterpolants, 0 QuantifiedInterpolants, 5088 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2285 ConjunctsInSsa, 138 ConjunctsInUnsatCore, 31 InterpolantComputations, 12 PerfectInterpolantSequences, 38970/45895 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 8 specifications checked. All of them hold - InvariantResult [Line: 46]: Location Invariant Derived location invariant: null - InvariantResult [Line: 23]: Location Invariant Derived location invariant: null - InvariantResult [Line: 37]: Location Invariant Derived location invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-10 18:31:30,677 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/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