./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound100.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c7c6ca5d 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/nla-digbench-scaling/geo1-u_unwindbound100.c -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 56c4e94c28ef21b810dfd9735c6a4e78cb913b54bdade350dd23877b35f6607b --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 11:51:47,977 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 11:51:48,032 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-09 11:51:48,035 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 11:51:48,035 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 11:51:48,049 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 11:51:48,050 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 11:51:48,050 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 11:51:48,051 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 11:51:48,051 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 11:51:48,051 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 11:51:48,051 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 11:51:48,052 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 11:51:48,052 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 11:51:48,052 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 11:51:48,053 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 11:51:48,053 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 11:51:48,053 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 11:51:48,053 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 11:51:48,054 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 11:51:48,054 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 11:51:48,054 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 11:51:48,055 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 11:51:48,055 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 11:51:48,055 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 11:51:48,055 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 11:51:48,056 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 11:51:48,056 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 11:51:48,056 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 11:51:48,056 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 11:51:48,057 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 11:51:48,057 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 11:51:48,057 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 11:51:48,057 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 11:51:48,057 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 11:51:48,058 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 11:51:48,058 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 11:51:48,058 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 11:51:48,058 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 11:51:48,059 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 11:51:48,059 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 11:51:48,059 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 11:51:48,059 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 11:51:48,060 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 11:51:48,060 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 56c4e94c28ef21b810dfd9735c6a4e78cb913b54bdade350dd23877b35f6607b [2024-11-09 11:51:48,242 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 11:51:48,262 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 11:51:48,265 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 11:51:48,266 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 11:51:48,267 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 11:51:48,268 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound100.c [2024-11-09 11:51:49,610 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 11:51:49,797 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 11:51:49,797 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound100.c [2024-11-09 11:51:49,808 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/667be017c/84ad280339ce444d8bf0f19dd8655c22/FLAGb98d58110 [2024-11-09 11:51:50,199 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/667be017c/84ad280339ce444d8bf0f19dd8655c22 [2024-11-09 11:51:50,201 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 11:51:50,202 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 11:51:50,205 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 11:51:50,205 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 11:51:50,209 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 11:51:50,209 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:51:50" (1/1) ... [2024-11-09 11:51:50,211 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7528b55f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:51:50, skipping insertion in model container [2024-11-09 11:51:50,211 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:51:50" (1/1) ... [2024-11-09 11:51:50,239 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 11:51:50,441 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 11:51:50,450 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 11:51:50,462 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 11:51:50,474 INFO L204 MainTranslator]: Completed translation [2024-11-09 11:51:50,474 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:51:50 WrapperNode [2024-11-09 11:51:50,474 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 11:51:50,475 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 11:51:50,475 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 11:51:50,475 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 11:51:50,480 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:51:50" (1/1) ... [2024-11-09 11:51:50,485 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:51:50" (1/1) ... [2024-11-09 11:51:50,497 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 50 [2024-11-09 11:51:50,497 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 11:51:50,497 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 11:51:50,498 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 11:51:50,498 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 11:51:50,505 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:51:50" (1/1) ... [2024-11-09 11:51:50,505 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:51:50" (1/1) ... [2024-11-09 11:51:50,506 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:51:50" (1/1) ... [2024-11-09 11:51:50,514 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-09 11:51:50,514 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:51:50" (1/1) ... [2024-11-09 11:51:50,514 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:51:50" (1/1) ... [2024-11-09 11:51:50,516 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:51:50" (1/1) ... [2024-11-09 11:51:50,517 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:51:50" (1/1) ... [2024-11-09 11:51:50,518 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:51:50" (1/1) ... [2024-11-09 11:51:50,518 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:51:50" (1/1) ... [2024-11-09 11:51:50,519 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 11:51:50,520 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 11:51:50,520 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 11:51:50,520 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 11:51:50,521 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:51:50" (1/1) ... [2024-11-09 11:51:50,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 11:51:50,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:51:50,550 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) [2024-11-09 11:51:50,558 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 [2024-11-09 11:51:50,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 11:51:50,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 11:51:50,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 11:51:50,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 11:51:50,589 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 11:51:50,589 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 11:51:50,637 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 11:51:50,639 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 11:51:50,754 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-11-09 11:51:50,755 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 11:51:50,765 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 11:51:50,765 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 11:51:50,765 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 11:51:50 BoogieIcfgContainer [2024-11-09 11:51:50,765 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 11:51:50,768 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 11:51:50,768 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 11:51:50,770 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 11:51:50,770 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 11:51:50" (1/3) ... [2024-11-09 11:51:50,771 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c2dc56d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:51:50, skipping insertion in model container [2024-11-09 11:51:50,771 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:51:50" (2/3) ... [2024-11-09 11:51:50,772 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c2dc56d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:51:50, skipping insertion in model container [2024-11-09 11:51:50,772 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 11:51:50" (3/3) ... [2024-11-09 11:51:50,773 INFO L112 eAbstractionObserver]: Analyzing ICFG geo1-u_unwindbound100.c [2024-11-09 11:51:50,785 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 11:51:50,785 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 11:51:50,835 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 11:51:50,840 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;@3f32bd8a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 11:51:50,844 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-09 11:51:50,847 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 16 states have (on average 1.375) internal successors, (22), 18 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 11:51:50,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-09 11:51:50,853 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:51:50,853 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-09 11:51:50,854 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 11:51:50,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:51:50,859 INFO L85 PathProgramCache]: Analyzing trace with hash 925668, now seen corresponding path program 1 times [2024-11-09 11:51:50,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:51:50,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698959707] [2024-11-09 11:51:50,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:51:50,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:51:50,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:51:51,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:51:51,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:51:51,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698959707] [2024-11-09 11:51:51,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698959707] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 11:51:51,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 11:51:51,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 11:51:51,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333637559] [2024-11-09 11:51:51,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 11:51:51,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 11:51:51,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:51:51,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 11:51:51,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 11:51:51,085 INFO L87 Difference]: Start difference. First operand has 22 states, 16 states have (on average 1.375) internal successors, (22), 18 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:51:51,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:51:51,120 INFO L93 Difference]: Finished difference Result 40 states and 51 transitions. [2024-11-09 11:51:51,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 11:51:51,122 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-09 11:51:51,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:51:51,126 INFO L225 Difference]: With dead ends: 40 [2024-11-09 11:51:51,126 INFO L226 Difference]: Without dead ends: 13 [2024-11-09 11:51:51,128 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 11:51:51,130 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 21 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 30 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 [2024-11-09 11:51:51,130 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 30 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 11:51:51,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2024-11-09 11:51:51,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2024-11-09 11:51:51,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 11:51:51,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2024-11-09 11:51:51,152 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 4 [2024-11-09 11:51:51,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:51:51,152 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2024-11-09 11:51:51,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:51:51,153 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2024-11-09 11:51:51,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-09 11:51:51,153 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:51:51,153 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-09 11:51:51,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 11:51:51,153 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 11:51:51,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:51:51,154 INFO L85 PathProgramCache]: Analyzing trace with hash 28695749, now seen corresponding path program 1 times [2024-11-09 11:51:51,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:51:51,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852323714] [2024-11-09 11:51:51,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:51:51,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:51:51,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:51:51,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:51:51,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:51:51,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852323714] [2024-11-09 11:51:51,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852323714] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 11:51:51,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 11:51:51,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 11:51:51,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106374030] [2024-11-09 11:51:51,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 11:51:51,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 11:51:51,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:51:51,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 11:51:51,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 11:51:51,192 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:51:51,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:51:51,214 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2024-11-09 11:51:51,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 11:51:51,214 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-09 11:51:51,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:51:51,215 INFO L225 Difference]: With dead ends: 18 [2024-11-09 11:51:51,215 INFO L226 Difference]: Without dead ends: 17 [2024-11-09 11:51:51,215 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 11:51:51,216 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 3 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 11:51:51,217 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 24 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 11:51:51,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2024-11-09 11:51:51,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2024-11-09 11:51:51,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 11:51:51,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2024-11-09 11:51:51,220 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 5 [2024-11-09 11:51:51,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:51:51,220 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2024-11-09 11:51:51,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:51:51,220 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2024-11-09 11:51:51,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-09 11:51:51,221 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:51:51,221 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:51:51,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 11:51:51,221 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 11:51:51,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:51:51,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1463352479, now seen corresponding path program 1 times [2024-11-09 11:51:51,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:51:51,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058591320] [2024-11-09 11:51:51,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:51:51,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:51:51,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:51:51,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 11:51:51,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:51:51,409 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:51:51,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:51:51,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058591320] [2024-11-09 11:51:51,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058591320] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:51:51,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729597663] [2024-11-09 11:51:51,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:51:51,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:51:51,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:51:51,416 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) [2024-11-09 11:51:51,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 11:51:51,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:51:51,454 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 11:51:51,457 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:51:51,510 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:51:51,511 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:51:51,585 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:51:51,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [729597663] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:51:51,586 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 11:51:51,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 5] total 9 [2024-11-09 11:51:51,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567637995] [2024-11-09 11:51:51,591 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 11:51:51,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 11:51:51,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:51:51,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 11:51:51,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-09 11:51:51,595 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 10 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 11:51:51,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:51:51,738 INFO L93 Difference]: Finished difference Result 47 states and 49 transitions. [2024-11-09 11:51:51,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 11:51:51,739 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 10 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 15 [2024-11-09 11:51:51,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:51:51,739 INFO L225 Difference]: With dead ends: 47 [2024-11-09 11:51:51,740 INFO L226 Difference]: Without dead ends: 46 [2024-11-09 11:51:51,741 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2024-11-09 11:51:51,741 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 28 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 11:51:51,742 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 38 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 11:51:51,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-11-09 11:51:51,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-11-09 11:51:51,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 37 states have (on average 1.027027027027027) internal successors, (38), 37 states have internal predecessors, (38), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 11:51:51,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 46 transitions. [2024-11-09 11:51:51,755 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 46 transitions. Word has length 15 [2024-11-09 11:51:51,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:51:51,756 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 46 transitions. [2024-11-09 11:51:51,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 10 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 11:51:51,756 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 46 transitions. [2024-11-09 11:51:51,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-09 11:51:51,758 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:51:51,758 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1] [2024-11-09 11:51:51,771 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 11:51:51,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:51:51,963 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 11:51:51,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:51:51,964 INFO L85 PathProgramCache]: Analyzing trace with hash 605923629, now seen corresponding path program 2 times [2024-11-09 11:51:51,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:51:51,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619661954] [2024-11-09 11:51:51,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:51:51,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:51:51,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:51:52,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 11:51:52,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:51:52,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-09 11:51:52,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:51:52,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-09 11:51:52,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:51:52,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-09 11:51:52,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:51:52,282 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 11:51:52,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:51:52,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619661954] [2024-11-09 11:51:52,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619661954] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:51:52,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1824673542] [2024-11-09 11:51:52,283 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 11:51:52,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:51:52,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:51:52,288 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) [2024-11-09 11:51:52,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 11:51:52,343 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 11:51:52,343 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 11:51:52,344 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-09 11:51:52,346 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:51:52,415 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:51:52,415 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:51:52,651 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 11:51:52,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1824673542] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:51:52,652 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 11:51:52,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 11] total 21 [2024-11-09 11:51:52,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605195150] [2024-11-09 11:51:52,653 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 11:51:52,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-09 11:51:52,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:51:52,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-09 11:51:52,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2024-11-09 11:51:52,655 INFO L87 Difference]: Start difference. First operand 46 states and 46 transitions. Second operand has 22 states, 21 states have (on average 3.0952380952380953) internal successors, (65), 22 states have internal predecessors, (65), 8 states have call successors, (12), 5 states have call predecessors, (12), 5 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2024-11-09 11:51:53,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:51:53,002 INFO L93 Difference]: Finished difference Result 107 states and 112 transitions. [2024-11-09 11:51:53,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-09 11:51:53,002 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.0952380952380953) internal successors, (65), 22 states have internal predecessors, (65), 8 states have call successors, (12), 5 states have call predecessors, (12), 5 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) Word has length 45 [2024-11-09 11:51:53,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:51:53,004 INFO L225 Difference]: With dead ends: 107 [2024-11-09 11:51:53,004 INFO L226 Difference]: Without dead ends: 106 [2024-11-09 11:51:53,005 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=549, Invalid=1091, Unknown=0, NotChecked=0, Total=1640 [2024-11-09 11:51:53,005 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 115 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 11:51:53,006 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 68 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 11:51:53,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-09 11:51:53,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2024-11-09 11:51:53,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 85 states have (on average 1.011764705882353) internal successors, (86), 85 states have internal predecessors, (86), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-09 11:51:53,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 106 transitions. [2024-11-09 11:51:53,015 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 106 transitions. Word has length 45 [2024-11-09 11:51:53,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:51:53,016 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 106 transitions. [2024-11-09 11:51:53,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.0952380952380953) internal successors, (65), 22 states have internal predecessors, (65), 8 states have call successors, (12), 5 states have call predecessors, (12), 5 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2024-11-09 11:51:53,016 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 106 transitions. [2024-11-09 11:51:53,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-09 11:51:53,018 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:51:53,018 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1] [2024-11-09 11:51:53,037 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 11:51:53,222 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 [2024-11-09 11:51:53,223 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 11:51:53,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:51:53,223 INFO L85 PathProgramCache]: Analyzing trace with hash 2108038345, now seen corresponding path program 3 times [2024-11-09 11:51:53,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:51:53,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914838417] [2024-11-09 11:51:53,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:51:53,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:51:53,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:51:53,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 11:51:53,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:51:53,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-09 11:51:53,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:51:53,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-09 11:51:53,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:51:53,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-09 11:51:53,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:51:53,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-09 11:51:53,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:51:53,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-09 11:51:53,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:51:53,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-09 11:51:53,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:51:53,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-09 11:51:53,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:51:53,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-09 11:51:53,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:51:53,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-09 11:51:53,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:51:53,971 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-09 11:51:53,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:51:53,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914838417] [2024-11-09 11:51:53,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914838417] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:51:53,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [255578583] [2024-11-09 11:51:53,972 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 11:51:53,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:51:53,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:51:53,974 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) [2024-11-09 11:51:53,978 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 11:51:54,028 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 11:51:54,028 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 11:51:54,029 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 11:51:54,031 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:51:54,098 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2024-11-09 11:51:54,098 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 11:51:54,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [255578583] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 11:51:54,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 11:51:54,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [23] total 26 [2024-11-09 11:51:54,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143289396] [2024-11-09 11:51:54,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 11:51:54,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 11:51:54,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:51:54,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 11:51:54,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2024-11-09 11:51:54,100 INFO L87 Difference]: Start difference. First operand 106 states and 106 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 11:51:54,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:51:54,144 INFO L93 Difference]: Finished difference Result 106 states and 106 transitions. [2024-11-09 11:51:54,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 11:51:54,145 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 105 [2024-11-09 11:51:54,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:51:54,146 INFO L225 Difference]: With dead ends: 106 [2024-11-09 11:51:54,146 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 11:51:54,147 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=193, Invalid=619, Unknown=0, NotChecked=0, Total=812 [2024-11-09 11:51:54,147 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 5 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 11:51:54,147 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 19 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 11:51:54,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 11:51:54,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 11:51:54,148 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) [2024-11-09 11:51:54,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 11:51:54,148 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 105 [2024-11-09 11:51:54,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:51:54,148 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 11:51:54,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 11:51:54,148 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 11:51:54,148 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 11:51:54,151 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-09 11:51:54,151 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-09 11:51:54,167 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-09 11:51:54,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:51:54,358 INFO L407 BasicCegarLoop]: Path program histogram: [3, 1, 1] [2024-11-09 11:51:54,360 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 11:51:54,508 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 11:51:54,521 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 11:51:54 BoogieIcfgContainer [2024-11-09 11:51:54,521 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 11:51:54,522 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 11:51:54,522 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 11:51:54,522 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 11:51:54,522 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 11:51:50" (3/4) ... [2024-11-09 11:51:54,524 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 11:51:54,526 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-09 11:51:54,528 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-09 11:51:54,529 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-09 11:51:54,529 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 11:51:54,529 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 11:51:54,588 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 11:51:54,588 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-09 11:51:54,588 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 11:51:54,589 INFO L158 Benchmark]: Toolchain (without parser) took 4386.98ms. Allocated memory was 176.2MB in the beginning and 245.4MB in the end (delta: 69.2MB). Free memory was 108.3MB in the beginning and 204.3MB in the end (delta: -96.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 11:51:54,589 INFO L158 Benchmark]: CDTParser took 0.79ms. Allocated memory is still 121.6MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 11:51:54,593 INFO L158 Benchmark]: CACSL2BoogieTranslator took 269.62ms. Allocated memory is still 176.2MB. Free memory was 108.0MB in the beginning and 95.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 11:51:54,593 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.93ms. Allocated memory is still 176.2MB. Free memory was 95.5MB in the beginning and 93.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 11:51:54,594 INFO L158 Benchmark]: Boogie Preprocessor took 22.11ms. Allocated memory is still 176.2MB. Free memory was 93.9MB in the beginning and 92.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 11:51:54,594 INFO L158 Benchmark]: RCFGBuilder took 245.29ms. Allocated memory is still 176.2MB. Free memory was 92.3MB in the beginning and 81.0MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 11:51:54,594 INFO L158 Benchmark]: TraceAbstraction took 3753.34ms. Allocated memory was 176.2MB in the beginning and 245.4MB in the end (delta: 69.2MB). Free memory was 80.5MB in the beginning and 208.5MB in the end (delta: -128.0MB). Peak memory consumption was 71.1MB. Max. memory is 16.1GB. [2024-11-09 11:51:54,594 INFO L158 Benchmark]: Witness Printer took 66.93ms. Allocated memory is still 245.4MB. Free memory was 208.5MB in the beginning and 204.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 11:51:54,595 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.79ms. Allocated memory is still 121.6MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 269.62ms. Allocated memory is still 176.2MB. Free memory was 108.0MB in the beginning and 95.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.93ms. Allocated memory is still 176.2MB. Free memory was 95.5MB in the beginning and 93.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.11ms. Allocated memory is still 176.2MB. Free memory was 93.9MB in the beginning and 92.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 245.29ms. Allocated memory is still 176.2MB. Free memory was 92.3MB in the beginning and 81.0MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3753.34ms. Allocated memory was 176.2MB in the beginning and 245.4MB in the end (delta: 69.2MB). Free memory was 80.5MB in the beginning and 208.5MB in the end (delta: -128.0MB). Peak memory consumption was 71.1MB. Max. memory is 16.1GB. * Witness Printer took 66.93ms. Allocated memory is still 245.4MB. Free memory was 208.5MB in the beginning and 204.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 22 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 3.5s, OverallIterations: 5, TraceHistogramMax: 11, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 172 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 172 mSDsluCounter, 179 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 128 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 171 IncrementalHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 51 mSDtfsCounter, 171 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 320 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 462 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=106occurred in iteration=4, InterpolantAutomatonStates: 60, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 339 NumberOfCodeBlocks, 249 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 389 ConstructedInterpolants, 0 QuantifiedInterpolants, 821 SizeOfPredicates, 13 NumberOfNonLiveVariables, 237 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 10 InterpolantComputations, 3 PerfectInterpolantSequences, 708/1185 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 2 specifications checked. All of them hold - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: ((0 <= counter) && (counter <= 100)) - ProcedureContractResult [Line: 15]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Requires: (0 <= counter) Ensures: ((0 <= counter) && (counter == \old(counter))) RESULT: Ultimate proved your program to be correct! [2024-11-09 11:51:54,620 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