./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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/lcm2_unwindbound20.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 21f79dea7aad8546a3e0176902289dccc4338c9a5ec0cb74e31e8a84f408fa52 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 02:26:50,638 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 02:26:50,694 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-09 02:26:50,700 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 02:26:50,700 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 02:26:50,722 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 02:26:50,723 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 02:26:50,723 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 02:26:50,723 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 02:26:50,724 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 02:26:50,724 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 02:26:50,724 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 02:26:50,724 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 02:26:50,724 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 02:26:50,725 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 02:26:50,726 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 02:26:50,726 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-09 02:26:50,726 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-09 02:26:50,726 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 02:26:50,726 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-09 02:26:50,726 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 02:26:50,726 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-09 02:26:50,726 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 02:26:50,726 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-09 02:26:50,726 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-09 02:26:50,726 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 02:26:50,726 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-09 02:26:50,726 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 02:26:50,726 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 02:26:50,726 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 02:26:50,726 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 02:26:50,726 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 02:26:50,726 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 02:26:50,727 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 02:26:50,727 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 02:26:50,727 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 02:26:50,727 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 02:26:50,727 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-09 02:26:50,727 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-09 02:26:50,727 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 02:26:50,727 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 02:26:50,727 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 02:26:50,727 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 02:26:50,727 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 02:26:50,727 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 02:26:50,727 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> 21f79dea7aad8546a3e0176902289dccc4338c9a5ec0cb74e31e8a84f408fa52 [2025-03-09 02:26:50,993 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 02:26:50,998 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 02:26:51,000 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 02:26:51,001 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 02:26:51,001 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 02:26:51,002 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound20.c [2025-03-09 02:26:52,223 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af619de1b/a94db46c177a4ff5890c81cb5c3b6c68/FLAGe714db9f7 [2025-03-09 02:26:52,493 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 02:26:52,494 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound20.c [2025-03-09 02:26:52,504 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af619de1b/a94db46c177a4ff5890c81cb5c3b6c68/FLAGe714db9f7 [2025-03-09 02:26:52,521 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af619de1b/a94db46c177a4ff5890c81cb5c3b6c68 [2025-03-09 02:26:52,524 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 02:26:52,525 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 02:26:52,527 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 02:26:52,528 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 02:26:52,532 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 02:26:52,532 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 02:26:52" (1/1) ... [2025-03-09 02:26:52,533 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@765ffc80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:26:52, skipping insertion in model container [2025-03-09 02:26:52,533 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 02:26:52" (1/1) ... [2025-03-09 02:26:52,546 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 02:26:52,672 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 02:26:52,683 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 02:26:52,698 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 02:26:52,713 INFO L204 MainTranslator]: Completed translation [2025-03-09 02:26:52,713 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:26:52 WrapperNode [2025-03-09 02:26:52,714 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 02:26:52,715 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 02:26:52,715 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 02:26:52,715 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 02:26:52,720 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:26:52" (1/1) ... [2025-03-09 02:26:52,726 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:26:52" (1/1) ... [2025-03-09 02:26:52,740 INFO L138 Inliner]: procedures = 14, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 63 [2025-03-09 02:26:52,741 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 02:26:52,741 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 02:26:52,742 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 02:26:52,742 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 02:26:52,748 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:26:52" (1/1) ... [2025-03-09 02:26:52,748 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:26:52" (1/1) ... [2025-03-09 02:26:52,749 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:26:52" (1/1) ... [2025-03-09 02:26:52,763 INFO L175 MemorySlicer]: Split 9 memory accesses to 2 slices as follows [2, 7]. 78 percent of accesses are in the largest equivalence class. The 9 initializations are split as follows [2, 7]. The 0 writes are split as follows [0, 0]. [2025-03-09 02:26:52,763 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:26:52" (1/1) ... [2025-03-09 02:26:52,763 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:26:52" (1/1) ... [2025-03-09 02:26:52,769 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:26:52" (1/1) ... [2025-03-09 02:26:52,769 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:26:52" (1/1) ... [2025-03-09 02:26:52,771 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:26:52" (1/1) ... [2025-03-09 02:26:52,771 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:26:52" (1/1) ... [2025-03-09 02:26:52,775 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 02:26:52,776 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 02:26:52,776 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 02:26:52,776 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 02:26:52,777 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:26:52" (1/1) ... [2025-03-09 02:26:52,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 02:26:52,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:26:52,811 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) [2025-03-09 02:26:52,817 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 [2025-03-09 02:26:52,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 02:26:52,837 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-09 02:26:52,837 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-09 02:26:52,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-09 02:26:52,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-09 02:26:52,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 02:26:52,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 02:26:52,838 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-09 02:26:52,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-09 02:26:52,890 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 02:26:52,892 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 02:26:53,052 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2025-03-09 02:26:53,053 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 02:26:53,061 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 02:26:53,062 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 02:26:53,063 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 02:26:53 BoogieIcfgContainer [2025-03-09 02:26:53,063 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 02:26:53,064 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 02:26:53,064 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 02:26:53,069 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 02:26:53,069 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 02:26:52" (1/3) ... [2025-03-09 02:26:53,070 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50c62e56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 02:26:53, skipping insertion in model container [2025-03-09 02:26:53,070 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:26:52" (2/3) ... [2025-03-09 02:26:53,070 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50c62e56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 02:26:53, skipping insertion in model container [2025-03-09 02:26:53,070 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 02:26:53" (3/3) ... [2025-03-09 02:26:53,072 INFO L128 eAbstractionObserver]: Analyzing ICFG lcm2_unwindbound20.c [2025-03-09 02:26:53,084 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 02:26:53,085 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG lcm2_unwindbound20.c that has 3 procedures, 31 locations, 1 initial locations, 1 loop locations, and 2 error locations. [2025-03-09 02:26:53,129 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 02:26:53,137 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;@42b75766, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 02:26:53,138 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-03-09 02:26:53,141 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 20 states have (on average 1.4) internal successors, (28), 22 states have internal predecessors, (28), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-09 02:26:53,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2025-03-09 02:26:53,145 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:26:53,145 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:26:53,146 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-03-09 02:26:53,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:26:53,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1436860968, now seen corresponding path program 1 times [2025-03-09 02:26:53,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:26:53,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574657366] [2025-03-09 02:26:53,159 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:26:53,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:26:53,208 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-09 02:26:53,223 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-09 02:26:53,224 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:26:53,224 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:26:53,294 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-09 02:26:53,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:26:53,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574657366] [2025-03-09 02:26:53,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574657366] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:26:53,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [424098282] [2025-03-09 02:26:53,297 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:26:53,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:26:53,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:26:53,300 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) [2025-03-09 02:26:53,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-09 02:26:53,345 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-09 02:26:53,375 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-09 02:26:53,375 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:26:53,375 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:26:53,381 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-09 02:26:53,386 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:26:53,397 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-09 02:26:53,397 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:26:53,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [424098282] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:26:53,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:26:53,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-09 02:26:53,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140021111] [2025-03-09 02:26:53,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:26:53,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-09 02:26:53,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:26:53,421 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-09 02:26:53,422 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-09 02:26:53,424 INFO L87 Difference]: Start difference. First operand has 31 states, 20 states have (on average 1.4) internal successors, (28), 22 states have internal predecessors, (28), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-09 02:26:53,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:26:53,436 INFO L93 Difference]: Finished difference Result 58 states and 81 transitions. [2025-03-09 02:26:53,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-09 02:26:53,439 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 25 [2025-03-09 02:26:53,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:26:53,443 INFO L225 Difference]: With dead ends: 58 [2025-03-09 02:26:53,444 INFO L226 Difference]: Without dead ends: 24 [2025-03-09 02:26:53,448 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-09 02:26:53,450 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 02:26:53,451 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 02:26:53,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2025-03-09 02:26:53,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2025-03-09 02:26:53,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-09 02:26:53,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2025-03-09 02:26:53,478 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 25 [2025-03-09 02:26:53,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:26:53,478 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2025-03-09 02:26:53,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-09 02:26:53,479 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2025-03-09 02:26:53,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2025-03-09 02:26:53,480 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:26:53,480 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:26:53,486 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-09 02:26:53,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-03-09 02:26:53,681 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-03-09 02:26:53,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:26:53,681 INFO L85 PathProgramCache]: Analyzing trace with hash 790600856, now seen corresponding path program 1 times [2025-03-09 02:26:53,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:26:53,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144183424] [2025-03-09 02:26:53,681 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:26:53,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:26:53,694 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-09 02:26:53,708 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-09 02:26:53,709 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:26:53,709 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:26:53,816 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-09 02:26:53,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:26:53,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144183424] [2025-03-09 02:26:53,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144183424] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:26:53,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:26:53,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 02:26:53,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152897526] [2025-03-09 02:26:53,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:26:53,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:26:53,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:26:53,818 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:26:53,818 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:26:53,818 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-09 02:26:53,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:26:53,857 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2025-03-09 02:26:53,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 02:26:53,858 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 25 [2025-03-09 02:26:53,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:26:53,858 INFO L225 Difference]: With dead ends: 30 [2025-03-09 02:26:53,859 INFO L226 Difference]: Without dead ends: 28 [2025-03-09 02:26:53,859 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-09 02:26:53,860 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 11 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 56 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 [2025-03-09 02:26:53,860 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 56 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 02:26:53,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2025-03-09 02:26:53,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2025-03-09 02:26:53,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-09 02:26:53,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2025-03-09 02:26:53,864 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 25 [2025-03-09 02:26:53,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:26:53,865 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2025-03-09 02:26:53,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-09 02:26:53,865 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2025-03-09 02:26:53,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2025-03-09 02:26:53,866 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:26:53,866 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:26:53,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-09 02:26:53,866 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-03-09 02:26:53,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:26:53,867 INFO L85 PathProgramCache]: Analyzing trace with hash -381037265, now seen corresponding path program 1 times [2025-03-09 02:26:53,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:26:53,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289108908] [2025-03-09 02:26:53,867 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:26:53,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:26:53,876 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-03-09 02:26:53,900 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-03-09 02:26:53,901 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:26:53,901 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:26:54,036 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-09 02:26:54,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:26:54,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289108908] [2025-03-09 02:26:54,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289108908] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:26:54,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1367622040] [2025-03-09 02:26:54,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:26:54,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:26:54,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:26:54,039 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) [2025-03-09 02:26:54,040 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-09 02:26:54,064 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-03-09 02:26:54,090 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-03-09 02:26:54,090 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:26:54,090 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:26:54,091 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-09 02:26:54,094 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:26:54,176 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-09 02:26:54,176 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:26:54,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1367622040] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:26:54,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:26:54,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-03-09 02:26:54,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426625351] [2025-03-09 02:26:54,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:26:54,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 02:26:54,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:26:54,179 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 02:26:54,179 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2025-03-09 02:26:54,180 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-09 02:26:54,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:26:54,215 INFO L93 Difference]: Finished difference Result 27 states and 31 transitions. [2025-03-09 02:26:54,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:26:54,216 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 36 [2025-03-09 02:26:54,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:26:54,216 INFO L225 Difference]: With dead ends: 27 [2025-03-09 02:26:54,216 INFO L226 Difference]: Without dead ends: 26 [2025-03-09 02:26:54,216 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2025-03-09 02:26:54,217 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 20 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 02:26:54,217 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 43 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 02:26:54,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2025-03-09 02:26:54,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2025-03-09 02:26:54,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 18 states have internal predecessors, (20), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-09 02:26:54,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2025-03-09 02:26:54,225 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 36 [2025-03-09 02:26:54,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:26:54,226 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2025-03-09 02:26:54,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-09 02:26:54,226 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2025-03-09 02:26:54,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2025-03-09 02:26:54,228 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:26:54,228 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:26:54,234 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-09 02:26:54,428 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,SelfDestructingSolverStorable2 [2025-03-09 02:26:54,429 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-03-09 02:26:54,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:26:54,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1072746654, now seen corresponding path program 1 times [2025-03-09 02:26:54,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:26:54,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198815106] [2025-03-09 02:26:54,429 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:26:54,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:26:54,438 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-03-09 02:26:54,456 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-03-09 02:26:54,456 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:26:54,456 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:26:54,574 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-09 02:26:54,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:26:54,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198815106] [2025-03-09 02:26:54,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198815106] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:26:54,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [313082717] [2025-03-09 02:26:54,574 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:26:54,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:26:54,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:26:54,577 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) [2025-03-09 02:26:54,579 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-09 02:26:54,615 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-03-09 02:26:54,636 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-03-09 02:26:54,636 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:26:54,636 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:26:54,637 INFO L256 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-09 02:26:54,638 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:26:54,697 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-09 02:26:54,697 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:26:54,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [313082717] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:26:54,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:26:54,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-03-09 02:26:54,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175483017] [2025-03-09 02:26:54,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:26:54,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 02:26:54,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:26:54,698 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 02:26:54,698 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2025-03-09 02:26:54,698 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-09 02:26:54,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:26:54,777 INFO L93 Difference]: Finished difference Result 26 states and 30 transitions. [2025-03-09 02:26:54,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 02:26:54,779 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 37 [2025-03-09 02:26:54,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:26:54,779 INFO L225 Difference]: With dead ends: 26 [2025-03-09 02:26:54,779 INFO L226 Difference]: Without dead ends: 0 [2025-03-09 02:26:54,780 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-03-09 02:26:54,780 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 18 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:26:54,780 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 53 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:26:54,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-03-09 02:26:54,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-03-09 02:26:54,781 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) [2025-03-09 02:26:54,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-03-09 02:26:54,781 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2025-03-09 02:26:54,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:26:54,781 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-09 02:26:54,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-09 02:26:54,781 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-03-09 02:26:54,782 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-03-09 02:26:54,787 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2025-03-09 02:26:54,787 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2025-03-09 02:26:54,795 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-09 02:26:54,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:26:54,990 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-03-09 02:26:54,992 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-03-09 02:26:55,036 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-09 02:26:55,047 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.03 02:26:55 BoogieIcfgContainer [2025-03-09 02:26:55,048 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-09 02:26:55,048 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-09 02:26:55,048 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-09 02:26:55,049 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-09 02:26:55,051 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 02:26:53" (3/4) ... [2025-03-09 02:26:55,052 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-09 02:26:55,057 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2025-03-09 02:26:55,057 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2025-03-09 02:26:55,062 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2025-03-09 02:26:55,062 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-03-09 02:26:55,062 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-03-09 02:26:55,062 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-09 02:26:55,062 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-09 02:26:55,123 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-09 02:26:55,123 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-09 02:26:55,123 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-09 02:26:55,124 INFO L158 Benchmark]: Toolchain (without parser) took 2598.99ms. Allocated memory is still 142.6MB. Free memory was 106.7MB in the beginning and 49.1MB in the end (delta: 57.6MB). Peak memory consumption was 55.1MB. Max. memory is 16.1GB. [2025-03-09 02:26:55,124 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 201.3MB. Free memory is still 126.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 02:26:55,124 INFO L158 Benchmark]: CACSL2BoogieTranslator took 186.78ms. Allocated memory is still 142.6MB. Free memory was 106.7MB in the beginning and 96.0MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 02:26:55,124 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.85ms. Allocated memory is still 142.6MB. Free memory was 96.0MB in the beginning and 94.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 02:26:55,124 INFO L158 Benchmark]: Boogie Preprocessor took 34.28ms. Allocated memory is still 142.6MB. Free memory was 94.4MB in the beginning and 93.4MB in the end (delta: 997.1kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 02:26:55,125 INFO L158 Benchmark]: IcfgBuilder took 286.73ms. Allocated memory is still 142.6MB. Free memory was 93.4MB in the beginning and 81.2MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 02:26:55,125 INFO L158 Benchmark]: TraceAbstraction took 1983.43ms. Allocated memory is still 142.6MB. Free memory was 80.2MB in the beginning and 56.1MB in the end (delta: 24.1MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. [2025-03-09 02:26:55,125 INFO L158 Benchmark]: Witness Printer took 74.91ms. Allocated memory is still 142.6MB. Free memory was 56.1MB in the beginning and 49.1MB in the end (delta: 7.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 02:26:55,126 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 201.3MB. Free memory is still 126.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 186.78ms. Allocated memory is still 142.6MB. Free memory was 106.7MB in the beginning and 96.0MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.85ms. Allocated memory is still 142.6MB. Free memory was 96.0MB in the beginning and 94.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 34.28ms. Allocated memory is still 142.6MB. Free memory was 94.4MB in the beginning and 93.4MB in the end (delta: 997.1kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 286.73ms. Allocated memory is still 142.6MB. Free memory was 93.4MB in the beginning and 81.2MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1983.43ms. Allocated memory is still 142.6MB. Free memory was 80.2MB in the beginning and 56.1MB in the end (delta: 24.1MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. * Witness Printer took 74.91ms. Allocated memory is still 142.6MB. Free memory was 56.1MB in the beginning and 49.1MB in the end (delta: 7.0MB). Peak memory consumption was 8.4MB. 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: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: 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 3 procedures, 31 locations, 46 edges, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 4, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 49 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 49 mSDsluCounter, 188 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 84 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 42 IncrementalHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 104 mSDtfsCounter, 42 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 117 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, InterpolantAutomatonStates: 16, 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, 4 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 221 NumberOfCodeBlocks, 221 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 214 ConstructedInterpolants, 0 QuantifiedInterpolants, 368 SizeOfPredicates, 3 NumberOfNonLiveVariables, 300 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 167/178 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 36]: Location Invariant Derived location invariant: ((0 <= (counter + 2147483648)) && (counter <= 20)) RESULT: Ultimate proved your program to be correct! [2025-03-09 02:26:55,141 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE