./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound100.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound100.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash aca8f035d06c0b5071d069d3e7dfc8602e7f38b097f4966dbc919eb2aff21501 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 20:06:54,732 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 20:06:54,809 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-24 20:06:54,812 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 20:06:54,813 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 20:06:54,835 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 20:06:54,836 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 20:06:54,836 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 20:06:54,836 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 20:06:54,838 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 20:06:54,838 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 20:06:54,839 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 20:06:54,839 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 20:06:54,839 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 20:06:54,840 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 20:06:54,840 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 20:06:54,840 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 20:06:54,840 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 20:06:54,841 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 20:06:54,843 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 20:06:54,843 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 20:06:54,844 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 20:06:54,844 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 20:06:54,844 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 20:06:54,848 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 20:06:54,848 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-24 20:06:54,848 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 20:06:54,848 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 20:06:54,849 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 20:06:54,849 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 20:06:54,849 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 20:06:54,849 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 20:06:54,849 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 20:06:54,849 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 20:06:54,849 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 20:06:54,850 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 20:06:54,850 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 20:06:54,850 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 20:06:54,850 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 20:06:54,850 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 20:06:54,850 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 20:06:54,851 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 20:06:54,851 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 20:06:54,851 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 20:06:54,852 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aca8f035d06c0b5071d069d3e7dfc8602e7f38b097f4966dbc919eb2aff21501 [2024-10-24 20:06:55,061 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 20:06:55,097 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 20:06:55,099 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 20:06:55,100 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 20:06:55,100 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 20:06:55,101 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound100.i [2024-10-24 20:06:56,416 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 20:06:56,612 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 20:06:56,612 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound100.i [2024-10-24 20:06:56,618 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee57e0973/980929b6ce064f429ec77c19d19992dc/FLAGa1fec2997 [2024-10-24 20:06:56,637 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee57e0973/980929b6ce064f429ec77c19d19992dc [2024-10-24 20:06:56,640 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 20:06:56,640 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 20:06:56,641 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 20:06:56,641 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 20:06:56,645 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 20:06:56,646 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 08:06:56" (1/1) ... [2024-10-24 20:06:56,647 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33c3cf2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:06:56, skipping insertion in model container [2024-10-24 20:06:56,647 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 08:06:56" (1/1) ... [2024-10-24 20:06:56,662 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 20:06:56,807 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 20:06:56,816 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 20:06:56,832 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 20:06:56,848 INFO L204 MainTranslator]: Completed translation [2024-10-24 20:06:56,849 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:06:56 WrapperNode [2024-10-24 20:06:56,849 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 20:06:56,850 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 20:06:56,850 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 20:06:56,850 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 20:06:56,856 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:06:56" (1/1) ... [2024-10-24 20:06:56,862 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:06:56" (1/1) ... [2024-10-24 20:06:56,877 INFO L138 Inliner]: procedures = 16, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 66 [2024-10-24 20:06:56,877 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 20:06:56,878 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 20:06:56,878 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 20:06:56,878 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 20:06:56,886 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:06:56" (1/1) ... [2024-10-24 20:06:56,886 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:06:56" (1/1) ... [2024-10-24 20:06:56,887 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:06:56" (1/1) ... [2024-10-24 20:06:56,900 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]. [2024-10-24 20:06:56,900 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:06:56" (1/1) ... [2024-10-24 20:06:56,901 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:06:56" (1/1) ... [2024-10-24 20:06:56,909 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:06:56" (1/1) ... [2024-10-24 20:06:56,912 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:06:56" (1/1) ... [2024-10-24 20:06:56,912 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:06:56" (1/1) ... [2024-10-24 20:06:56,913 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:06:56" (1/1) ... [2024-10-24 20:06:56,914 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 20:06:56,915 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 20:06:56,915 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 20:06:56,915 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 20:06:56,917 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:06:56" (1/1) ... [2024-10-24 20:06:56,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 20:06:56,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:06:56,958 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) [2024-10-24 20:06:56,963 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 [2024-10-24 20:06:56,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 20:06:56,997 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 20:06:56,998 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 20:06:56,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 20:06:56,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 20:06:56,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 20:06:56,998 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-24 20:06:56,998 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-24 20:06:57,047 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 20:06:57,049 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 20:06:57,164 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-10-24 20:06:57,164 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 20:06:57,190 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 20:06:57,190 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-24 20:06:57,191 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:06:57 BoogieIcfgContainer [2024-10-24 20:06:57,191 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 20:06:57,192 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 20:06:57,192 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 20:06:57,195 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 20:06:57,195 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 08:06:56" (1/3) ... [2024-10-24 20:06:57,196 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bd0f81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 08:06:57, skipping insertion in model container [2024-10-24 20:06:57,196 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:06:56" (2/3) ... [2024-10-24 20:06:57,196 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bd0f81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 08:06:57, skipping insertion in model container [2024-10-24 20:06:57,196 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:06:57" (3/3) ... [2024-10-24 20:06:57,198 INFO L112 eAbstractionObserver]: Analyzing ICFG divbin_unwindbound100.i [2024-10-24 20:06:57,210 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 20:06:57,211 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-10-24 20:06:57,261 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 20:06:57,266 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;@2d375c65, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 20:06:57,266 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-24 20:06:57,270 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 22 states have (on average 1.6363636363636365) internal successors, (36), 26 states have internal predecessors, (36), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-24 20:06:57,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-24 20:06:57,275 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:06:57,276 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:06:57,276 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-24 20:06:57,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:06:57,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1641202500, now seen corresponding path program 1 times [2024-10-24 20:06:57,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:06:57,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298718205] [2024-10-24 20:06:57,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:06:57,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:06:57,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:06:57,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 20:06:57,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:06:57,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-24 20:06:57,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:06:57,476 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:06:57,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:06:57,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298718205] [2024-10-24 20:06:57,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298718205] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:06:57,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:06:57,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 20:06:57,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629085486] [2024-10-24 20:06:57,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:06:57,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 20:06:57,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:06:57,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 20:06:57,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 20:06:57,515 INFO L87 Difference]: Start difference. First operand has 33 states, 22 states have (on average 1.6363636363636365) internal successors, (36), 26 states have internal predecessors, (36), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-24 20:06:57,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:06:57,547 INFO L93 Difference]: Finished difference Result 63 states and 88 transitions. [2024-10-24 20:06:57,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 20:06:57,552 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 14 [2024-10-24 20:06:57,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:06:57,557 INFO L225 Difference]: With dead ends: 63 [2024-10-24 20:06:57,558 INFO L226 Difference]: Without dead ends: 28 [2024-10-24 20:06:57,560 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 20:06:57,565 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 20:06:57,566 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 35 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 20:06:57,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-10-24 20:06:57,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2024-10-24 20:06:57,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 19 states have (on average 1.368421052631579) internal successors, (26), 22 states have internal predecessors, (26), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 20:06:57,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2024-10-24 20:06:57,602 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 14 [2024-10-24 20:06:57,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:06:57,602 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2024-10-24 20:06:57,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-24 20:06:57,603 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2024-10-24 20:06:57,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-24 20:06:57,604 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:06:57,605 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:06:57,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 20:06:57,606 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-24 20:06:57,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:06:57,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1895441916, now seen corresponding path program 1 times [2024-10-24 20:06:57,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:06:57,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34430283] [2024-10-24 20:06:57,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:06:57,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:06:57,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:06:57,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 20:06:57,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:06:57,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-24 20:06:57,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:06:57,793 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:06:57,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:06:57,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34430283] [2024-10-24 20:06:57,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34430283] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:06:57,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:06:57,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 20:06:57,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954866734] [2024-10-24 20:06:57,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:06:57,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 20:06:57,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:06:57,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 20:06:57,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 20:06:57,799 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 20:06:57,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:06:57,851 INFO L93 Difference]: Finished difference Result 47 states and 53 transitions. [2024-10-24 20:06:57,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 20:06:57,851 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2024-10-24 20:06:57,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:06:57,852 INFO L225 Difference]: With dead ends: 47 [2024-10-24 20:06:57,852 INFO L226 Difference]: Without dead ends: 32 [2024-10-24 20:06:57,853 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 20:06:57,853 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 9 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 20:06:57,854 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 69 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 20:06:57,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-10-24 20:06:57,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2024-10-24 20:06:57,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 26 states have internal predecessors, (30), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 20:06:57,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2024-10-24 20:06:57,858 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 14 [2024-10-24 20:06:57,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:06:57,859 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2024-10-24 20:06:57,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 20:06:57,859 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2024-10-24 20:06:57,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-10-24 20:06:57,860 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:06:57,860 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:06:57,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 20:06:57,860 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-24 20:06:57,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:06:57,860 INFO L85 PathProgramCache]: Analyzing trace with hash 367584173, now seen corresponding path program 1 times [2024-10-24 20:06:57,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:06:57,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985890546] [2024-10-24 20:06:57,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:06:57,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:06:57,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:06:58,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 20:06:58,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:06:58,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-24 20:06:58,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:06:58,136 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:06:58,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:06:58,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985890546] [2024-10-24 20:06:58,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985890546] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:06:58,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:06:58,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 20:06:58,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880550072] [2024-10-24 20:06:58,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:06:58,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 20:06:58,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:06:58,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 20:06:58,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-24 20:06:58,139 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 20:06:58,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:06:58,290 INFO L93 Difference]: Finished difference Result 51 states and 57 transitions. [2024-10-24 20:06:58,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 20:06:58,295 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2024-10-24 20:06:58,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:06:58,296 INFO L225 Difference]: With dead ends: 51 [2024-10-24 20:06:58,296 INFO L226 Difference]: Without dead ends: 50 [2024-10-24 20:06:58,296 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-24 20:06:58,297 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 26 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:06:58,298 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 109 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:06:58,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-10-24 20:06:58,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 44. [2024-10-24 20:06:58,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 33 states have (on average 1.303030303030303) internal successors, (43), 36 states have internal predecessors, (43), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-24 20:06:58,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 51 transitions. [2024-10-24 20:06:58,313 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 51 transitions. Word has length 19 [2024-10-24 20:06:58,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:06:58,313 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 51 transitions. [2024-10-24 20:06:58,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 20:06:58,314 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 51 transitions. [2024-10-24 20:06:58,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-10-24 20:06:58,315 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:06:58,315 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:06:58,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 20:06:58,315 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-24 20:06:58,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:06:58,317 INFO L85 PathProgramCache]: Analyzing trace with hash 367585423, now seen corresponding path program 1 times [2024-10-24 20:06:58,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:06:58,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174257770] [2024-10-24 20:06:58,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:06:58,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:06:58,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:06:58,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 20:06:58,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:06:58,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-24 20:06:58,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:06:58,533 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:06:58,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:06:58,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174257770] [2024-10-24 20:06:58,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174257770] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:06:58,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [890822436] [2024-10-24 20:06:58,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:06:58,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:06:58,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:06:58,542 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) [2024-10-24 20:06:58,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 20:06:58,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:06:58,587 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 20:06:58,591 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:06:58,696 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:06:58,696 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 20:06:58,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [890822436] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:06:58,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:06:58,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-10-24 20:06:58,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363441286] [2024-10-24 20:06:58,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:06:58,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 20:06:58,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:06:58,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 20:06:58,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-24 20:06:58,698 INFO L87 Difference]: Start difference. First operand 44 states and 51 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 20:06:58,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:06:58,755 INFO L93 Difference]: Finished difference Result 52 states and 60 transitions. [2024-10-24 20:06:58,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 20:06:58,755 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2024-10-24 20:06:58,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:06:58,756 INFO L225 Difference]: With dead ends: 52 [2024-10-24 20:06:58,756 INFO L226 Difference]: Without dead ends: 51 [2024-10-24 20:06:58,756 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-10-24 20:06:58,757 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 20 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 20:06:58,757 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 58 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 20:06:58,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-10-24 20:06:58,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 43. [2024-10-24 20:06:58,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 33 states have (on average 1.2727272727272727) internal successors, (42), 35 states have internal predecessors, (42), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-24 20:06:58,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 50 transitions. [2024-10-24 20:06:58,768 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 50 transitions. Word has length 19 [2024-10-24 20:06:58,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:06:58,769 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 50 transitions. [2024-10-24 20:06:58,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 20:06:58,769 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 50 transitions. [2024-10-24 20:06:58,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-10-24 20:06:58,770 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:06:58,770 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:06:58,791 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-24 20:06:58,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:06:58,971 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-24 20:06:58,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:06:58,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1489792460, now seen corresponding path program 1 times [2024-10-24 20:06:58,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:06:58,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467490107] [2024-10-24 20:06:58,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:06:58,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:06:58,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:06:59,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 20:06:59,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:06:59,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-24 20:06:59,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:06:59,060 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:06:59,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:06:59,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467490107] [2024-10-24 20:06:59,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467490107] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:06:59,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:06:59,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 20:06:59,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536151264] [2024-10-24 20:06:59,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:06:59,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 20:06:59,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:06:59,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 20:06:59,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-24 20:06:59,063 INFO L87 Difference]: Start difference. First operand 43 states and 50 transitions. Second operand has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 20:06:59,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:06:59,105 INFO L93 Difference]: Finished difference Result 52 states and 59 transitions. [2024-10-24 20:06:59,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 20:06:59,109 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2024-10-24 20:06:59,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:06:59,110 INFO L225 Difference]: With dead ends: 52 [2024-10-24 20:06:59,110 INFO L226 Difference]: Without dead ends: 51 [2024-10-24 20:06:59,110 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-10-24 20:06:59,111 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 15 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 20:06:59,111 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 94 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 20:06:59,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-10-24 20:06:59,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 46. [2024-10-24 20:06:59,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 36 states have (on average 1.25) internal successors, (45), 38 states have internal predecessors, (45), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-24 20:06:59,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 53 transitions. [2024-10-24 20:06:59,118 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 53 transitions. Word has length 20 [2024-10-24 20:06:59,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:06:59,118 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 53 transitions. [2024-10-24 20:06:59,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 20:06:59,119 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 53 transitions. [2024-10-24 20:06:59,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-10-24 20:06:59,119 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:06:59,119 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:06:59,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 20:06:59,119 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-24 20:06:59,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:06:59,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1489753731, now seen corresponding path program 1 times [2024-10-24 20:06:59,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:06:59,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607296487] [2024-10-24 20:06:59,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:06:59,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:06:59,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:06:59,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 20:06:59,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:06:59,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-24 20:06:59,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:06:59,192 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:06:59,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:06:59,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607296487] [2024-10-24 20:06:59,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607296487] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:06:59,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1506142398] [2024-10-24 20:06:59,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:06:59,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:06:59,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:06:59,197 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) [2024-10-24 20:06:59,199 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 20:06:59,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:06:59,231 INFO L255 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 20:06:59,232 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:06:59,257 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:06:59,258 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 20:06:59,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1506142398] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:06:59,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:06:59,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-10-24 20:06:59,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725269972] [2024-10-24 20:06:59,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:06:59,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 20:06:59,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:06:59,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 20:06:59,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-24 20:06:59,260 INFO L87 Difference]: Start difference. First operand 46 states and 53 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 20:06:59,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:06:59,297 INFO L93 Difference]: Finished difference Result 51 states and 58 transitions. [2024-10-24 20:06:59,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 20:06:59,297 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2024-10-24 20:06:59,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:06:59,298 INFO L225 Difference]: With dead ends: 51 [2024-10-24 20:06:59,298 INFO L226 Difference]: Without dead ends: 50 [2024-10-24 20:06:59,298 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-10-24 20:06:59,299 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 17 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 20:06:59,299 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 82 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 20:06:59,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-10-24 20:06:59,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 45. [2024-10-24 20:06:59,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 36 states have (on average 1.2222222222222223) internal successors, (44), 37 states have internal predecessors, (44), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-24 20:06:59,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 52 transitions. [2024-10-24 20:06:59,304 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 52 transitions. Word has length 20 [2024-10-24 20:06:59,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:06:59,305 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 52 transitions. [2024-10-24 20:06:59,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 20:06:59,305 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 52 transitions. [2024-10-24 20:06:59,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-10-24 20:06:59,305 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:06:59,306 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:06:59,318 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-24 20:06:59,509 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,SelfDestructingSolverStorable5 [2024-10-24 20:06:59,510 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-24 20:06:59,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:06:59,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1356283532, now seen corresponding path program 1 times [2024-10-24 20:06:59,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:06:59,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13887905] [2024-10-24 20:06:59,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:06:59,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:06:59,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:06:59,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 20:06:59,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:06:59,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-24 20:06:59,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:06:59,585 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:06:59,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:06:59,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13887905] [2024-10-24 20:06:59,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13887905] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:06:59,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [63780428] [2024-10-24 20:06:59,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:06:59,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:06:59,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:06:59,592 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) [2024-10-24 20:06:59,593 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-24 20:06:59,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:06:59,623 INFO L255 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 20:06:59,624 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:06:59,657 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:06:59,658 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:06:59,732 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:06:59,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [63780428] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:06:59,735 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:06:59,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 6] total 13 [2024-10-24 20:06:59,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826240302] [2024-10-24 20:06:59,736 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:06:59,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 20:06:59,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:06:59,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 20:06:59,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2024-10-24 20:06:59,737 INFO L87 Difference]: Start difference. First operand 45 states and 52 transitions. Second operand has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 13 states have internal predecessors, (36), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-24 20:06:59,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:06:59,862 INFO L93 Difference]: Finished difference Result 82 states and 95 transitions. [2024-10-24 20:06:59,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 20:06:59,862 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 13 states have internal predecessors, (36), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 23 [2024-10-24 20:06:59,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:06:59,863 INFO L225 Difference]: With dead ends: 82 [2024-10-24 20:06:59,863 INFO L226 Difference]: Without dead ends: 69 [2024-10-24 20:06:59,864 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2024-10-24 20:06:59,864 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 37 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:06:59,864 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 106 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:06:59,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2024-10-24 20:06:59,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 59. [2024-10-24 20:06:59,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 50 states have (on average 1.2) internal successors, (60), 51 states have internal predecessors, (60), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-24 20:06:59,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 68 transitions. [2024-10-24 20:06:59,870 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 68 transitions. Word has length 23 [2024-10-24 20:06:59,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:06:59,870 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 68 transitions. [2024-10-24 20:06:59,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 13 states have internal predecessors, (36), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-24 20:06:59,870 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 68 transitions. [2024-10-24 20:06:59,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-10-24 20:06:59,871 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:06:59,871 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:06:59,887 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-24 20:07:00,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:07:00,076 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-24 20:07:00,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:07:00,077 INFO L85 PathProgramCache]: Analyzing trace with hash 904934402, now seen corresponding path program 1 times [2024-10-24 20:07:00,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:07:00,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176851459] [2024-10-24 20:07:00,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:07:00,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:07:00,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:00,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 20:07:00,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:00,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-24 20:07:00,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:00,179 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:07:00,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:07:00,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176851459] [2024-10-24 20:07:00,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176851459] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:07:00,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1133412204] [2024-10-24 20:07:00,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:07:00,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:07:00,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:07:00,184 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:07:00,185 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-24 20:07:00,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:00,222 INFO L255 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 20:07:00,223 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:07:00,274 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:07:00,274 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 20:07:00,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1133412204] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:07:00,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:07:00,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 13 [2024-10-24 20:07:00,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758102367] [2024-10-24 20:07:00,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:07:00,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 20:07:00,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:07:00,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 20:07:00,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-10-24 20:07:00,276 INFO L87 Difference]: Start difference. First operand 59 states and 68 transitions. Second operand has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 7 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 20:07:00,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:07:00,323 INFO L93 Difference]: Finished difference Result 59 states and 68 transitions. [2024-10-24 20:07:00,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 20:07:00,324 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 7 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2024-10-24 20:07:00,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:07:00,327 INFO L225 Difference]: With dead ends: 59 [2024-10-24 20:07:00,327 INFO L226 Difference]: Without dead ends: 58 [2024-10-24 20:07:00,328 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2024-10-24 20:07:00,328 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 44 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 20:07:00,329 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 72 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 20:07:00,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-10-24 20:07:00,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 47. [2024-10-24 20:07:00,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 41 states have (on average 1.170731707317073) internal successors, (48), 41 states have internal predecessors, (48), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 20:07:00,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 54 transitions. [2024-10-24 20:07:00,334 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 54 transitions. Word has length 24 [2024-10-24 20:07:00,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:07:00,334 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 54 transitions. [2024-10-24 20:07:00,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 7 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 20:07:00,334 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 54 transitions. [2024-10-24 20:07:00,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-10-24 20:07:00,335 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:07:00,335 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:07:00,348 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-24 20:07:00,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:07:00,536 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-24 20:07:00,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:07:00,536 INFO L85 PathProgramCache]: Analyzing trace with hash -2011804545, now seen corresponding path program 1 times [2024-10-24 20:07:00,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:07:00,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105032417] [2024-10-24 20:07:00,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:07:00,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:07:00,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:00,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 20:07:00,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:00,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-24 20:07:00,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:00,603 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:07:00,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:07:00,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105032417] [2024-10-24 20:07:00,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105032417] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:07:00,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1963141760] [2024-10-24 20:07:00,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:07:00,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:07:00,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:07:00,608 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:07:00,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-24 20:07:00,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:00,643 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 20:07:00,643 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:07:00,687 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:07:00,688 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:07:00,755 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:07:00,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1963141760] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:07:00,756 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:07:00,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 18 [2024-10-24 20:07:00,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051979986] [2024-10-24 20:07:00,756 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:07:00,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-24 20:07:00,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:07:00,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-24 20:07:00,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2024-10-24 20:07:00,757 INFO L87 Difference]: Start difference. First operand 47 states and 54 transitions. Second operand has 19 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 19 states have internal predecessors, (44), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-24 20:07:00,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:07:00,954 INFO L93 Difference]: Finished difference Result 76 states and 88 transitions. [2024-10-24 20:07:00,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-24 20:07:00,955 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 19 states have internal predecessors, (44), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 25 [2024-10-24 20:07:00,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:07:00,956 INFO L225 Difference]: With dead ends: 76 [2024-10-24 20:07:00,956 INFO L226 Difference]: Without dead ends: 75 [2024-10-24 20:07:00,956 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=259, Invalid=733, Unknown=0, NotChecked=0, Total=992 [2024-10-24 20:07:00,957 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 82 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:07:00,957 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 162 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:07:00,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-10-24 20:07:00,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 69. [2024-10-24 20:07:00,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 59 states have (on average 1.152542372881356) internal successors, (68), 59 states have internal predecessors, (68), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-24 20:07:00,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 78 transitions. [2024-10-24 20:07:00,971 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 78 transitions. Word has length 25 [2024-10-24 20:07:00,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:07:00,971 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 78 transitions. [2024-10-24 20:07:00,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 19 states have internal predecessors, (44), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-24 20:07:00,971 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 78 transitions. [2024-10-24 20:07:00,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-10-24 20:07:00,976 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:07:00,976 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:07:00,995 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-24 20:07:01,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:07:01,178 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-24 20:07:01,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:07:01,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1808115458, now seen corresponding path program 1 times [2024-10-24 20:07:01,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:07:01,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427185093] [2024-10-24 20:07:01,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:07:01,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:07:01,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:01,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 20:07:01,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:01,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-24 20:07:01,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:01,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 20:07:01,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:01,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 20:07:01,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:01,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 20:07:01,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:01,621 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-24 20:07:01,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:07:01,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427185093] [2024-10-24 20:07:01,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427185093] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:07:01,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [409476751] [2024-10-24 20:07:01,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:07:01,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:07:01,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:07:01,628 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:07:01,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-24 20:07:01,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:01,677 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-24 20:07:01,678 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:07:01,901 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:07:01,902 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:07:02,115 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-24 20:07:02,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [409476751] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:07:02,116 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:07:02,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 10] total 30 [2024-10-24 20:07:02,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577160217] [2024-10-24 20:07:02,116 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:07:02,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-10-24 20:07:02,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:07:02,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-10-24 20:07:02,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=229, Invalid=701, Unknown=0, NotChecked=0, Total=930 [2024-10-24 20:07:02,118 INFO L87 Difference]: Start difference. First operand 69 states and 78 transitions. Second operand has 31 states, 30 states have (on average 3.1666666666666665) internal successors, (95), 31 states have internal predecessors, (95), 11 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 11 states have call predecessors, (13), 11 states have call successors, (13) [2024-10-24 20:07:02,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:07:02,648 INFO L93 Difference]: Finished difference Result 222 states and 252 transitions. [2024-10-24 20:07:02,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-10-24 20:07:02,648 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 3.1666666666666665) internal successors, (95), 31 states have internal predecessors, (95), 11 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 11 states have call predecessors, (13), 11 states have call successors, (13) Word has length 53 [2024-10-24 20:07:02,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:07:02,650 INFO L225 Difference]: With dead ends: 222 [2024-10-24 20:07:02,650 INFO L226 Difference]: Without dead ends: 221 [2024-10-24 20:07:02,651 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 631 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=896, Invalid=2296, Unknown=0, NotChecked=0, Total=3192 [2024-10-24 20:07:02,652 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 196 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:07:02,652 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 242 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:07:02,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2024-10-24 20:07:02,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 168. [2024-10-24 20:07:02,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 140 states have (on average 1.1285714285714286) internal successors, (158), 140 states have internal predecessors, (158), 14 states have call successors, (14), 13 states have call predecessors, (14), 13 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-24 20:07:02,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 186 transitions. [2024-10-24 20:07:02,667 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 186 transitions. Word has length 53 [2024-10-24 20:07:02,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:07:02,667 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 186 transitions. [2024-10-24 20:07:02,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 3.1666666666666665) internal successors, (95), 31 states have internal predecessors, (95), 11 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 11 states have call predecessors, (13), 11 states have call successors, (13) [2024-10-24 20:07:02,668 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 186 transitions. [2024-10-24 20:07:02,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-10-24 20:07:02,669 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:07:02,669 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:07:02,684 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-24 20:07:02,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:07:02,870 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-24 20:07:02,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:07:02,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1200701576, now seen corresponding path program 1 times [2024-10-24 20:07:02,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:07:02,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821590794] [2024-10-24 20:07:02,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:07:02,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:07:02,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:03,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 20:07:03,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:03,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-24 20:07:03,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:03,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 20:07:03,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:03,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 20:07:03,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:03,037 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-10-24 20:07:03,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:07:03,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821590794] [2024-10-24 20:07:03,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821590794] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:07:03,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [861327366] [2024-10-24 20:07:03,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:07:03,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:07:03,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:07:03,039 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:07:03,040 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-24 20:07:03,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:03,087 INFO L255 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-24 20:07:03,089 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:07:03,145 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-10-24 20:07:03,145 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:07:03,310 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-10-24 20:07:03,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [861327366] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:07:03,311 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:07:03,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 12] total 25 [2024-10-24 20:07:03,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211575909] [2024-10-24 20:07:03,311 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:07:03,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-10-24 20:07:03,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:07:03,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-10-24 20:07:03,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=423, Unknown=0, NotChecked=0, Total=600 [2024-10-24 20:07:03,313 INFO L87 Difference]: Start difference. First operand 168 states and 186 transitions. Second operand has 25 states, 25 states have (on average 3.08) internal successors, (77), 25 states have internal predecessors, (77), 4 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-10-24 20:07:03,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:07:03,589 INFO L93 Difference]: Finished difference Result 248 states and 280 transitions. [2024-10-24 20:07:03,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-10-24 20:07:03,589 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.08) internal successors, (77), 25 states have internal predecessors, (77), 4 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 61 [2024-10-24 20:07:03,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:07:03,590 INFO L225 Difference]: With dead ends: 248 [2024-10-24 20:07:03,591 INFO L226 Difference]: Without dead ends: 222 [2024-10-24 20:07:03,592 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 429 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=576, Invalid=1230, Unknown=0, NotChecked=0, Total=1806 [2024-10-24 20:07:03,592 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 181 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:07:03,592 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 156 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:07:03,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2024-10-24 20:07:03,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 198. [2024-10-24 20:07:03,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 170 states have (on average 1.1411764705882352) internal successors, (194), 170 states have internal predecessors, (194), 14 states have call successors, (14), 13 states have call predecessors, (14), 13 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-24 20:07:03,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 222 transitions. [2024-10-24 20:07:03,606 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 222 transitions. Word has length 61 [2024-10-24 20:07:03,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:07:03,606 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 222 transitions. [2024-10-24 20:07:03,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.08) internal successors, (77), 25 states have internal predecessors, (77), 4 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-10-24 20:07:03,606 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 222 transitions. [2024-10-24 20:07:03,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-24 20:07:03,607 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:07:03,607 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:07:03,625 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-24 20:07:03,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:07:03,812 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-24 20:07:03,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:07:03,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1728550616, now seen corresponding path program 2 times [2024-10-24 20:07:03,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:07:03,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154488960] [2024-10-24 20:07:03,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:07:03,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:07:03,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:04,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 20:07:04,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:04,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-24 20:07:04,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:04,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-24 20:07:04,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:04,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-24 20:07:04,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:04,245 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-10-24 20:07:04,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:07:04,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154488960] [2024-10-24 20:07:04,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154488960] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:07:04,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1359664471] [2024-10-24 20:07:04,245 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 20:07:04,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:07:04,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:07:04,248 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:07:04,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-24 20:07:04,300 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 20:07:04,301 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 20:07:04,302 INFO L255 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-10-24 20:07:04,304 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:07:04,395 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-10-24 20:07:04,395 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:07:04,926 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-10-24 20:07:04,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1359664471] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:07:04,927 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:07:04,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 23, 24] total 49 [2024-10-24 20:07:04,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112390473] [2024-10-24 20:07:04,927 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:07:04,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2024-10-24 20:07:04,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:07:04,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2024-10-24 20:07:04,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=645, Invalid=1707, Unknown=0, NotChecked=0, Total=2352 [2024-10-24 20:07:04,930 INFO L87 Difference]: Start difference. First operand 198 states and 222 transitions. Second operand has 49 states, 49 states have (on average 2.795918367346939) internal successors, (137), 49 states have internal predecessors, (137), 4 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-10-24 20:07:05,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:07:05,895 INFO L93 Difference]: Finished difference Result 344 states and 394 transitions. [2024-10-24 20:07:05,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2024-10-24 20:07:05,896 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 2.795918367346939) internal successors, (137), 49 states have internal predecessors, (137), 4 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 91 [2024-10-24 20:07:05,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:07:05,897 INFO L225 Difference]: With dead ends: 344 [2024-10-24 20:07:05,897 INFO L226 Difference]: Without dead ends: 318 [2024-10-24 20:07:05,901 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1947 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=2580, Invalid=5610, Unknown=0, NotChecked=0, Total=8190 [2024-10-24 20:07:05,902 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 276 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:07:05,902 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 247 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:07:05,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2024-10-24 20:07:05,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 258. [2024-10-24 20:07:05,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 230 states have (on average 1.1565217391304348) internal successors, (266), 230 states have internal predecessors, (266), 14 states have call successors, (14), 13 states have call predecessors, (14), 13 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-24 20:07:05,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 294 transitions. [2024-10-24 20:07:05,932 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 294 transitions. Word has length 91 [2024-10-24 20:07:05,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:07:05,933 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 294 transitions. [2024-10-24 20:07:05,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 2.795918367346939) internal successors, (137), 49 states have internal predecessors, (137), 4 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-10-24 20:07:05,933 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 294 transitions. [2024-10-24 20:07:05,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-10-24 20:07:05,940 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:07:05,940 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:07:05,955 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-24 20:07:06,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-10-24 20:07:06,141 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-24 20:07:06,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:07:06,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1708158849, now seen corresponding path program 1 times [2024-10-24 20:07:06,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:07:06,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333748803] [2024-10-24 20:07:06,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:07:06,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:07:06,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:06,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 20:07:06,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:06,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-24 20:07:06,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:06,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 20:07:06,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:06,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 20:07:06,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:06,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 20:07:06,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:06,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-24 20:07:07,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:07,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-24 20:07:07,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:07,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-24 20:07:07,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:07,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 20:07:07,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:07,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-24 20:07:07,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:07,016 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 0 proven. 225 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-10-24 20:07:07,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:07:07,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333748803] [2024-10-24 20:07:07,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333748803] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:07:07,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [569494697] [2024-10-24 20:07:07,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:07:07,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:07:07,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:07:07,018 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:07:07,019 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-24 20:07:07,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:07,087 INFO L255 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-10-24 20:07:07,092 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:07:07,712 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 3 proven. 334 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:07:07,712 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:07:08,684 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 3 proven. 222 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-10-24 20:07:08,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [569494697] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:07:08,684 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:07:08,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 22, 22] total 66 [2024-10-24 20:07:08,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547527031] [2024-10-24 20:07:08,684 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:07:08,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2024-10-24 20:07:08,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:07:08,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2024-10-24 20:07:08,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1012, Invalid=3410, Unknown=0, NotChecked=0, Total=4422 [2024-10-24 20:07:08,688 INFO L87 Difference]: Start difference. First operand 258 states and 294 transitions. Second operand has 67 states, 66 states have (on average 3.257575757575758) internal successors, (215), 67 states have internal predecessors, (215), 26 states have call successors, (28), 9 states have call predecessors, (28), 9 states have return successors, (28), 26 states have call predecessors, (28), 26 states have call successors, (28) [2024-10-24 20:07:10,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:07:10,352 INFO L93 Difference]: Finished difference Result 642 states and 730 transitions. [2024-10-24 20:07:10,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2024-10-24 20:07:10,353 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 66 states have (on average 3.257575757575758) internal successors, (215), 67 states have internal predecessors, (215), 26 states have call successors, (28), 9 states have call predecessors, (28), 9 states have return successors, (28), 26 states have call predecessors, (28), 26 states have call successors, (28) Word has length 113 [2024-10-24 20:07:10,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:07:10,355 INFO L225 Difference]: With dead ends: 642 [2024-10-24 20:07:10,355 INFO L226 Difference]: Without dead ends: 641 [2024-10-24 20:07:10,364 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3740 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=4499, Invalid=11757, Unknown=0, NotChecked=0, Total=16256 [2024-10-24 20:07:10,368 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 539 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 539 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 20:07:10,368 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [539 Valid, 343 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 20:07:10,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2024-10-24 20:07:10,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 423. [2024-10-24 20:07:10,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 365 states have (on average 1.1397260273972603) internal successors, (416), 365 states have internal predecessors, (416), 29 states have call successors, (29), 28 states have call predecessors, (29), 28 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2024-10-24 20:07:10,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 474 transitions. [2024-10-24 20:07:10,406 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 474 transitions. Word has length 113 [2024-10-24 20:07:10,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:07:10,410 INFO L471 AbstractCegarLoop]: Abstraction has 423 states and 474 transitions. [2024-10-24 20:07:10,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 66 states have (on average 3.257575757575758) internal successors, (215), 67 states have internal predecessors, (215), 26 states have call successors, (28), 9 states have call predecessors, (28), 9 states have return successors, (28), 26 states have call predecessors, (28), 26 states have call successors, (28) [2024-10-24 20:07:10,410 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 474 transitions. [2024-10-24 20:07:10,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2024-10-24 20:07:10,412 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:07:10,412 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:07:10,430 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-10-24 20:07:10,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-24 20:07:10,614 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-24 20:07:10,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:07:10,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1128118700, now seen corresponding path program 2 times [2024-10-24 20:07:10,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:07:10,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205091134] [2024-10-24 20:07:10,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:07:10,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:07:10,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:12,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 20:07:12,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:12,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-24 20:07:12,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:12,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 20:07:12,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:12,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 20:07:12,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:12,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 20:07:12,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:12,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-24 20:07:12,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:12,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 20:07:12,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:12,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 20:07:12,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:12,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-24 20:07:12,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:12,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 20:07:12,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:12,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-24 20:07:12,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:12,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-24 20:07:12,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:12,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-24 20:07:12,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:12,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-24 20:07:12,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:12,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-10-24 20:07:12,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:12,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-10-24 20:07:12,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:12,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-10-24 20:07:12,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:12,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-10-24 20:07:12,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:12,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-10-24 20:07:12,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:12,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2024-10-24 20:07:12,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:12,198 INFO L134 CoverageAnalysis]: Checked inductivity of 1756 backedges. 0 proven. 1140 refuted. 0 times theorem prover too weak. 616 trivial. 0 not checked. [2024-10-24 20:07:12,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:07:12,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205091134] [2024-10-24 20:07:12,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205091134] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:07:12,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1379710349] [2024-10-24 20:07:12,199 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 20:07:12,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:07:12,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:07:12,202 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:07:12,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-24 20:07:12,300 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 20:07:12,300 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 20:07:12,308 INFO L255 TraceCheckSpWp]: Trace formula consists of 543 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-10-24 20:07:12,312 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:07:13,725 INFO L134 CoverageAnalysis]: Checked inductivity of 1756 backedges. 4 proven. 1737 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-24 20:07:13,725 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:07:15,693 INFO L134 CoverageAnalysis]: Checked inductivity of 1756 backedges. 4 proven. 1125 refuted. 0 times theorem prover too weak. 627 trivial. 0 not checked. [2024-10-24 20:07:15,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1379710349] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:07:15,694 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:07:15,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 40, 40] total 124 [2024-10-24 20:07:15,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591213543] [2024-10-24 20:07:15,694 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:07:15,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 125 states [2024-10-24 20:07:15,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:07:15,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 125 interpolants. [2024-10-24 20:07:15,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3723, Invalid=11777, Unknown=0, NotChecked=0, Total=15500 [2024-10-24 20:07:15,701 INFO L87 Difference]: Start difference. First operand 423 states and 474 transitions. Second operand has 125 states, 124 states have (on average 3.411290322580645) internal successors, (423), 125 states have internal predecessors, (423), 56 states have call successors, (58), 19 states have call predecessors, (58), 19 states have return successors, (58), 56 states have call predecessors, (58), 56 states have call successors, (58) [2024-10-24 20:07:20,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:07:20,976 INFO L93 Difference]: Finished difference Result 1426 states and 1605 transitions. [2024-10-24 20:07:20,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 187 states. [2024-10-24 20:07:20,977 INFO L78 Accepts]: Start accepts. Automaton has has 125 states, 124 states have (on average 3.411290322580645) internal successors, (423), 125 states have internal predecessors, (423), 56 states have call successors, (58), 19 states have call predecessors, (58), 19 states have return successors, (58), 56 states have call predecessors, (58), 56 states have call successors, (58) Word has length 228 [2024-10-24 20:07:20,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:07:20,981 INFO L225 Difference]: With dead ends: 1426 [2024-10-24 20:07:20,981 INFO L226 Difference]: Without dead ends: 1425 [2024-10-24 20:07:20,985 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 661 GetRequests, 416 SyntacticMatches, 0 SemanticMatches, 245 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14511 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=17824, Invalid=42938, Unknown=0, NotChecked=0, Total=60762 [2024-10-24 20:07:20,985 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 1188 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 693 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1188 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 20:07:20,986 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1188 Valid, 572 Invalid, 774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 693 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 20:07:20,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1425 states. [2024-10-24 20:07:21,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1425 to 753. [2024-10-24 20:07:21,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 753 states, 635 states have (on average 1.1275590551181103) internal successors, (716), 635 states have internal predecessors, (716), 59 states have call successors, (59), 58 states have call predecessors, (59), 58 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2024-10-24 20:07:21,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 753 states to 753 states and 834 transitions. [2024-10-24 20:07:21,021 INFO L78 Accepts]: Start accepts. Automaton has 753 states and 834 transitions. Word has length 228 [2024-10-24 20:07:21,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:07:21,022 INFO L471 AbstractCegarLoop]: Abstraction has 753 states and 834 transitions. [2024-10-24 20:07:21,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 125 states, 124 states have (on average 3.411290322580645) internal successors, (423), 125 states have internal predecessors, (423), 56 states have call successors, (58), 19 states have call predecessors, (58), 19 states have return successors, (58), 56 states have call predecessors, (58), 56 states have call successors, (58) [2024-10-24 20:07:21,022 INFO L276 IsEmpty]: Start isEmpty. Operand 753 states and 834 transitions. [2024-10-24 20:07:21,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2024-10-24 20:07:21,025 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:07:21,025 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 22, 22, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:07:21,040 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-10-24 20:07:21,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-24 20:07:21,226 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-24 20:07:21,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:07:21,227 INFO L85 PathProgramCache]: Analyzing trace with hash 673173400, now seen corresponding path program 3 times [2024-10-24 20:07:21,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:07:21,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39362906] [2024-10-24 20:07:21,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:07:21,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:07:21,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:23,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 20:07:23,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:23,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-24 20:07:23,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:23,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-24 20:07:23,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:23,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-24 20:07:23,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:23,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-24 20:07:23,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:23,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-10-24 20:07:23,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:23,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-10-24 20:07:23,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:23,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-10-24 20:07:23,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:23,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-10-24 20:07:23,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:23,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-10-24 20:07:23,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:23,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2024-10-24 20:07:23,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:23,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2024-10-24 20:07:23,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:23,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-10-24 20:07:23,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:23,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2024-10-24 20:07:23,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:23,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2024-10-24 20:07:23,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:23,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2024-10-24 20:07:23,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:23,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2024-10-24 20:07:23,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:23,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2024-10-24 20:07:23,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:23,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2024-10-24 20:07:23,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:23,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2024-10-24 20:07:23,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:07:23,164 INFO L134 CoverageAnalysis]: Checked inductivity of 2984 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 1741 trivial. 0 not checked. [2024-10-24 20:07:23,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:07:23,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39362906] [2024-10-24 20:07:23,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39362906] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:07:23,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1386636098] [2024-10-24 20:07:23,164 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-24 20:07:23,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:07:23,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:07:23,169 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:07:23,171 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-24 20:07:23,257 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-24 20:07:23,257 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 20:07:23,258 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 20:07:23,260 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:07:23,336 INFO L134 CoverageAnalysis]: Checked inductivity of 2984 backedges. 190 proven. 0 refuted. 0 times theorem prover too weak. 2794 trivial. 0 not checked. [2024-10-24 20:07:23,337 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 20:07:23,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1386636098] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:07:23,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:07:23,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [49] total 52 [2024-10-24 20:07:23,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165348769] [2024-10-24 20:07:23,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:07:23,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 20:07:23,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:07:23,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 20:07:23,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=676, Invalid=1976, Unknown=0, NotChecked=0, Total=2652 [2024-10-24 20:07:23,338 INFO L87 Difference]: Start difference. First operand 753 states and 834 transitions. Second operand has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-24 20:07:23,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:07:23,423 INFO L93 Difference]: Finished difference Result 761 states and 842 transitions. [2024-10-24 20:07:23,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 20:07:23,423 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 327 [2024-10-24 20:07:23,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:07:23,424 INFO L225 Difference]: With dead ends: 761 [2024-10-24 20:07:23,424 INFO L226 Difference]: Without dead ends: 0 [2024-10-24 20:07:23,426 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 416 GetRequests, 364 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 667 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=686, Invalid=2176, Unknown=0, NotChecked=0, Total=2862 [2024-10-24 20:07:23,426 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 15 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 20:07:23,426 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 65 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 20:07:23,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-24 20:07:23,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-24 20:07:23,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 20:07:23,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-24 20:07:23,427 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 327 [2024-10-24 20:07:23,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:07:23,427 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-24 20:07:23,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-24 20:07:23,427 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-24 20:07:23,428 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-24 20:07:23,430 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2024-10-24 20:07:23,430 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2024-10-24 20:07:23,430 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2024-10-24 20:07:23,430 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2024-10-24 20:07:23,443 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-10-24 20:07:23,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-10-24 20:07:23,634 INFO L407 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:07:23,635 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-24 20:07:29,753 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 20:07:29,767 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 08:07:29 BoogieIcfgContainer [2024-10-24 20:07:29,768 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 20:07:29,768 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 20:07:29,768 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 20:07:29,768 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 20:07:29,768 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:06:57" (3/4) ... [2024-10-24 20:07:29,770 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-24 20:07:29,772 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-10-24 20:07:29,772 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-10-24 20:07:29,775 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-10-24 20:07:29,775 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-24 20:07:29,775 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-24 20:07:29,775 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-24 20:07:29,837 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-24 20:07:29,838 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-24 20:07:29,838 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 20:07:29,838 INFO L158 Benchmark]: Toolchain (without parser) took 33197.85ms. Allocated memory was 205.5MB in the beginning and 849.3MB in the end (delta: 643.8MB). Free memory was 176.9MB in the beginning and 677.0MB in the end (delta: -500.2MB). Peak memory consumption was 143.4MB. Max. memory is 16.1GB. [2024-10-24 20:07:29,839 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 127.9MB. Free memory was 89.6MB in the beginning and 89.4MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 20:07:29,839 INFO L158 Benchmark]: CACSL2BoogieTranslator took 207.92ms. Allocated memory is still 205.5MB. Free memory was 176.9MB in the beginning and 164.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-24 20:07:29,839 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.75ms. Allocated memory is still 205.5MB. Free memory was 164.3MB in the beginning and 163.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 20:07:29,839 INFO L158 Benchmark]: Boogie Preprocessor took 35.97ms. Allocated memory is still 205.5MB. Free memory was 163.0MB in the beginning and 161.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 20:07:29,840 INFO L158 Benchmark]: RCFGBuilder took 276.30ms. Allocated memory is still 205.5MB. Free memory was 161.3MB in the beginning and 148.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-24 20:07:29,840 INFO L158 Benchmark]: TraceAbstraction took 32575.27ms. Allocated memory was 205.5MB in the beginning and 849.3MB in the end (delta: 643.8MB). Free memory was 147.5MB in the beginning and 682.3MB in the end (delta: -534.8MB). Peak memory consumption was 493.7MB. Max. memory is 16.1GB. [2024-10-24 20:07:29,840 INFO L158 Benchmark]: Witness Printer took 70.00ms. Allocated memory is still 849.3MB. Free memory was 682.3MB in the beginning and 677.0MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-24 20:07:29,841 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 127.9MB. Free memory was 89.6MB in the beginning and 89.4MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 207.92ms. Allocated memory is still 205.5MB. Free memory was 176.9MB in the beginning and 164.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.75ms. Allocated memory is still 205.5MB. Free memory was 164.3MB in the beginning and 163.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 35.97ms. Allocated memory is still 205.5MB. Free memory was 163.0MB in the beginning and 161.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 276.30ms. Allocated memory is still 205.5MB. Free memory was 161.3MB in the beginning and 148.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 32575.27ms. Allocated memory was 205.5MB in the beginning and 849.3MB in the end (delta: 643.8MB). Free memory was 147.5MB in the beginning and 682.3MB in the end (delta: -534.8MB). Peak memory consumption was 493.7MB. Max. memory is 16.1GB. * Witness Printer took 70.00ms. Allocated memory is still 849.3MB. Free memory was 682.3MB in the beginning and 677.0MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. 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 - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: 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, 33 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 26.4s, OverallIterations: 15, TraceHistogramMax: 23, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 9.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2645 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2645 mSDsluCounter, 2412 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2069 mSDsCounter, 176 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2026 IncrementalHoareTripleChecker+Invalid, 2202 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 176 mSolverCounterUnsat, 343 mSDtfsCounter, 2026 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2233 GetRequests, 1528 SyntacticMatches, 0 SemanticMatches, 705 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22241 ImplicationChecksByTransitivity, 14.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=753occurred in iteration=14, InterpolantAutomatonStates: 505, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 15 MinimizatonAttempts, 1078 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 13.0s InterpolantComputationTime, 2035 NumberOfCodeBlocks, 1743 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 2596 ConstructedInterpolants, 0 QuantifiedInterpolants, 5448 SizeOfPredicates, 107 NumberOfNonLiveVariables, 1696 ConjunctsInSsa, 135 ConjunctsInUnsatCore, 33 InterpolantComputations, 8 PerfectInterpolantSequences, 6476/13567 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 4 specifications checked. All of them hold - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: ((0 <= ((long long) counter + 2147483647)) && (counter <= 2147483629)) - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: ((0 <= ((long long) counter + 2147483647)) && (counter <= 100)) - ProcedureContractResult [Line: 15]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Requires: (counter == 0) Ensures: ((counter == 0) && (counter == \old(counter))) - ProcedureContractResult [Line: 18]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Ensures: (counter == \old(counter)) RESULT: Ultimate proved your program to be correct! [2024-10-24 20:07:29,868 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