./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/ps4-ll_unwindbound50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 61a67961 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/ps4-ll_unwindbound50.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 870f3f117c59e986b23526e49a2d44ed8c8e543941d3d310e77e3939c7927e70 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 21:03:49,816 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 21:03:49,885 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-14 21:03:49,891 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 21:03:49,891 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 21:03:49,921 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 21:03:49,922 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 21:03:49,922 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 21:03:49,923 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 21:03:49,926 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 21:03:49,927 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 21:03:49,927 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 21:03:49,928 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 21:03:49,929 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 21:03:49,929 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 21:03:49,930 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 21:03:49,930 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 21:03:49,930 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 21:03:49,930 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 21:03:49,931 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 21:03:49,931 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 21:03:49,932 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 21:03:49,932 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 21:03:49,932 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 21:03:49,932 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 21:03:49,933 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-14 21:03:49,933 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 21:03:49,933 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 21:03:49,933 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 21:03:49,934 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 21:03:49,935 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 21:03:49,935 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 21:03:49,935 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 21:03:49,935 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 21:03:49,935 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 21:03:49,936 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 21:03:49,936 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 21:03:49,936 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 21:03:49,937 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 21:03:49,937 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 21:03:49,937 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 21:03:49,937 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 21:03:49,937 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 21:03:49,938 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 21:03:49,938 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 870f3f117c59e986b23526e49a2d44ed8c8e543941d3d310e77e3939c7927e70 [2024-10-14 21:03:50,181 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 21:03:50,205 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 21:03:50,207 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 21:03:50,208 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 21:03:50,209 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 21:03:50,210 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_unwindbound50.c [2024-10-14 21:03:51,615 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 21:03:51,857 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 21:03:51,857 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_unwindbound50.c [2024-10-14 21:03:51,864 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea6210e7d/8592c0ff4923407d8121145f3521cd27/FLAGbea4da5b1 [2024-10-14 21:03:52,188 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea6210e7d/8592c0ff4923407d8121145f3521cd27 [2024-10-14 21:03:52,190 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 21:03:52,191 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 21:03:52,192 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 21:03:52,193 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 21:03:52,199 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 21:03:52,200 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 09:03:52" (1/1) ... [2024-10-14 21:03:52,203 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62d30a27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:03:52, skipping insertion in model container [2024-10-14 21:03:52,203 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 09:03:52" (1/1) ... [2024-10-14 21:03:52,220 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 21:03:52,394 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 21:03:52,410 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 21:03:52,434 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 21:03:52,459 INFO L204 MainTranslator]: Completed translation [2024-10-14 21:03:52,460 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:03:52 WrapperNode [2024-10-14 21:03:52,460 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 21:03:52,461 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 21:03:52,461 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 21:03:52,461 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 21:03:52,467 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:03:52" (1/1) ... [2024-10-14 21:03:52,477 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:03:52" (1/1) ... [2024-10-14 21:03:52,511 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 107 [2024-10-14 21:03:52,512 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 21:03:52,512 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 21:03:52,512 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 21:03:52,513 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 21:03:52,525 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:03:52" (1/1) ... [2024-10-14 21:03:52,525 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:03:52" (1/1) ... [2024-10-14 21:03:52,527 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:03:52" (1/1) ... [2024-10-14 21:03:52,547 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]. [2024-10-14 21:03:52,547 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:03:52" (1/1) ... [2024-10-14 21:03:52,547 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:03:52" (1/1) ... [2024-10-14 21:03:52,553 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:03:52" (1/1) ... [2024-10-14 21:03:52,556 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:03:52" (1/1) ... [2024-10-14 21:03:52,559 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:03:52" (1/1) ... [2024-10-14 21:03:52,560 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:03:52" (1/1) ... [2024-10-14 21:03:52,561 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 21:03:52,562 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 21:03:52,562 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 21:03:52,563 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 21:03:52,563 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:03:52" (1/1) ... [2024-10-14 21:03:52,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 21:03:52,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 21:03:52,602 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) [2024-10-14 21:03:52,608 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 [2024-10-14 21:03:52,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 21:03:52,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 21:03:52,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 21:03:52,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 21:03:52,648 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-14 21:03:52,648 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-14 21:03:52,710 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 21:03:52,712 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 21:03:53,150 INFO L? ?]: Removed 75 outVars from TransFormulas that were not future-live. [2024-10-14 21:03:53,151 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 21:03:53,179 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 21:03:53,179 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 21:03:53,180 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 09:03:53 BoogieIcfgContainer [2024-10-14 21:03:53,180 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 21:03:53,185 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 21:03:53,185 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 21:03:53,188 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 21:03:53,188 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 09:03:52" (1/3) ... [2024-10-14 21:03:53,189 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53cf923c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 09:03:53, skipping insertion in model container [2024-10-14 21:03:53,190 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:03:52" (2/3) ... [2024-10-14 21:03:53,190 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53cf923c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 09:03:53, skipping insertion in model container [2024-10-14 21:03:53,191 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 09:03:53" (3/3) ... [2024-10-14 21:03:53,192 INFO L112 eAbstractionObserver]: Analyzing ICFG ps4-ll_unwindbound50.c [2024-10-14 21:03:53,209 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 21:03:53,209 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 62 error locations. [2024-10-14 21:03:53,280 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 21:03:53,286 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;@5d9391d6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 21:03:53,287 INFO L334 AbstractCegarLoop]: Starting to check reachability of 62 error locations. [2024-10-14 21:03:53,291 INFO L276 IsEmpty]: Start isEmpty. Operand has 137 states, 70 states have (on average 1.9428571428571428) internal successors, (136), 132 states have internal predecessors, (136), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 21:03:53,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-10-14 21:03:53,296 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:03:53,296 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-10-14 21:03:53,297 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2024-10-14 21:03:53,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:03:53,303 INFO L85 PathProgramCache]: Analyzing trace with hash 195308, now seen corresponding path program 1 times [2024-10-14 21:03:53,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:03:53,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319251006] [2024-10-14 21:03:53,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:03:53,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:03:53,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:03:53,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 21:03:53,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:03:53,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319251006] [2024-10-14 21:03:53,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319251006] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 21:03:53,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 21:03:53,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 21:03:53,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672968519] [2024-10-14 21:03:53,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 21:03:53,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 21:03:53,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:03:53,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 21:03:53,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 21:03:53,540 INFO L87 Difference]: Start difference. First operand has 137 states, 70 states have (on average 1.9428571428571428) internal successors, (136), 132 states have internal predecessors, (136), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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) [2024-10-14 21:03:53,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:03:53,616 INFO L93 Difference]: Finished difference Result 267 states and 294 transitions. [2024-10-14 21:03:53,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 21:03:53,619 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-10-14 21:03:53,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:03:53,626 INFO L225 Difference]: With dead ends: 267 [2024-10-14 21:03:53,627 INFO L226 Difference]: Without dead ends: 128 [2024-10-14 21:03:53,629 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 21:03:53,632 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 4 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 21:03:53,633 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 370 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 21:03:53,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2024-10-14 21:03:53,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2024-10-14 21:03:53,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 73 states have (on average 1.726027397260274) internal successors, (126), 124 states have internal predecessors, (126), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 21:03:53,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 130 transitions. [2024-10-14 21:03:53,670 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 130 transitions. Word has length 3 [2024-10-14 21:03:53,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:03:53,671 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 130 transitions. [2024-10-14 21:03:53,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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) [2024-10-14 21:03:53,671 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 130 transitions. [2024-10-14 21:03:53,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-14 21:03:53,671 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:03:53,672 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-14 21:03:53,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 21:03:53,672 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2024-10-14 21:03:53,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:03:53,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1523494207, now seen corresponding path program 1 times [2024-10-14 21:03:53,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:03:53,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303362841] [2024-10-14 21:03:53,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:03:53,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:03:53,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:03:53,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 21:03:53,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:03:53,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303362841] [2024-10-14 21:03:53,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303362841] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 21:03:53,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 21:03:53,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-14 21:03:53,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911263091] [2024-10-14 21:03:53,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 21:03:53,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 21:03:53,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:03:53,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 21:03:53,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 21:03:53,717 INFO L87 Difference]: Start difference. First operand 128 states and 130 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2024-10-14 21:03:53,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:03:53,838 INFO L93 Difference]: Finished difference Result 233 states and 245 transitions. [2024-10-14 21:03:53,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 21:03:53,839 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-10-14 21:03:53,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:03:53,841 INFO L225 Difference]: With dead ends: 233 [2024-10-14 21:03:53,841 INFO L226 Difference]: Without dead ends: 222 [2024-10-14 21:03:53,841 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 21:03:53,845 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 92 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 21:03:53,845 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 190 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 21:03:53,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2024-10-14 21:03:53,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 180. [2024-10-14 21:03:53,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 123 states have (on average 1.6829268292682926) internal successors, (207), 174 states have internal predecessors, (207), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 21:03:53,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 215 transitions. [2024-10-14 21:03:53,869 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 215 transitions. Word has length 6 [2024-10-14 21:03:53,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:03:53,869 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 215 transitions. [2024-10-14 21:03:53,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2024-10-14 21:03:53,870 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 215 transitions. [2024-10-14 21:03:53,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-10-14 21:03:53,870 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:03:53,870 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 21:03:53,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 21:03:53,870 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2024-10-14 21:03:53,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:03:53,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1496553621, now seen corresponding path program 1 times [2024-10-14 21:03:53,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:03:53,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345345581] [2024-10-14 21:03:53,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:03:53,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:03:53,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 21:03:53,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [949185126] [2024-10-14 21:03:53,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:03:53,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:03:53,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 21:03:53,894 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) [2024-10-14 21:03:53,896 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 21:03:53,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:03:53,939 INFO L255 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 21:03:53,942 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 21:03:53,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 21:03:53,964 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 21:03:53,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:03:53,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345345581] [2024-10-14 21:03:53,965 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 21:03:53,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [949185126] [2024-10-14 21:03:53,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [949185126] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 21:03:53,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 21:03:53,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-14 21:03:53,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852001373] [2024-10-14 21:03:53,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 21:03:53,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 21:03:53,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:03:53,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 21:03:53,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 21:03:53,968 INFO L87 Difference]: Start difference. First operand 180 states and 215 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2024-10-14 21:03:54,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:03:54,306 INFO L93 Difference]: Finished difference Result 213 states and 223 transitions. [2024-10-14 21:03:54,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 21:03:54,307 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-10-14 21:03:54,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:03:54,308 INFO L225 Difference]: With dead ends: 213 [2024-10-14 21:03:54,309 INFO L226 Difference]: Without dead ends: 186 [2024-10-14 21:03:54,309 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 21:03:54,310 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 52 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 21:03:54,311 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 125 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 21:03:54,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2024-10-14 21:03:54,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 184. [2024-10-14 21:03:54,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 127 states have (on average 1.4803149606299213) internal successors, (188), 178 states have internal predecessors, (188), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 21:03:54,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 196 transitions. [2024-10-14 21:03:54,323 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 196 transitions. Word has length 9 [2024-10-14 21:03:54,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:03:54,327 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 196 transitions. [2024-10-14 21:03:54,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2024-10-14 21:03:54,327 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 196 transitions. [2024-10-14 21:03:54,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-14 21:03:54,328 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:03:54,328 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 21:03:54,345 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-14 21:03:54,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:03:54,529 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2024-10-14 21:03:54,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:03:54,529 INFO L85 PathProgramCache]: Analyzing trace with hash -792860857, now seen corresponding path program 1 times [2024-10-14 21:03:54,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:03:54,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642044270] [2024-10-14 21:03:54,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:03:54,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:03:54,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:03:54,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 21:03:54,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:03:54,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642044270] [2024-10-14 21:03:54,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642044270] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 21:03:54,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 21:03:54,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 21:03:54,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640554100] [2024-10-14 21:03:54,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 21:03:54,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 21:03:54,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:03:54,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 21:03:54,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 21:03:54,621 INFO L87 Difference]: Start difference. First operand 184 states and 196 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2024-10-14 21:03:54,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:03:54,768 INFO L93 Difference]: Finished difference Result 201 states and 207 transitions. [2024-10-14 21:03:54,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 21:03:54,770 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-10-14 21:03:54,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:03:54,771 INFO L225 Difference]: With dead ends: 201 [2024-10-14 21:03:54,771 INFO L226 Difference]: Without dead ends: 167 [2024-10-14 21:03:54,772 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 21:03:54,775 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 114 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 21:03:54,776 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 182 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 21:03:54,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2024-10-14 21:03:54,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 156. [2024-10-14 21:03:54,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 100 states have (on average 1.55) internal successors, (155), 151 states have internal predecessors, (155), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 21:03:54,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 161 transitions. [2024-10-14 21:03:54,789 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 161 transitions. Word has length 14 [2024-10-14 21:03:54,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:03:54,789 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 161 transitions. [2024-10-14 21:03:54,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2024-10-14 21:03:54,789 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 161 transitions. [2024-10-14 21:03:54,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-10-14 21:03:54,790 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:03:54,790 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 21:03:54,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 21:03:54,791 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2024-10-14 21:03:54,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:03:54,792 INFO L85 PathProgramCache]: Analyzing trace with hash -807418136, now seen corresponding path program 1 times [2024-10-14 21:03:54,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:03:54,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038957626] [2024-10-14 21:03:54,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:03:54,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:03:54,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:03:54,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-14 21:03:54,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:03:54,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 21:03:54,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:03:54,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038957626] [2024-10-14 21:03:54,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038957626] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 21:03:54,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 21:03:54,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 21:03:54,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2431906] [2024-10-14 21:03:54,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 21:03:54,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 21:03:54,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:03:54,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 21:03:54,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 21:03:54,912 INFO L87 Difference]: Start difference. First operand 156 states and 161 transitions. Second operand has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 21:03:54,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:03:54,934 INFO L93 Difference]: Finished difference Result 158 states and 161 transitions. [2024-10-14 21:03:54,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 21:03:54,935 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34 [2024-10-14 21:03:54,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:03:54,936 INFO L225 Difference]: With dead ends: 158 [2024-10-14 21:03:54,936 INFO L226 Difference]: Without dead ends: 156 [2024-10-14 21:03:54,936 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 21:03:54,937 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 1 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 21:03:54,938 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 241 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 21:03:54,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2024-10-14 21:03:54,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2024-10-14 21:03:54,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 100 states have (on average 1.53) internal successors, (153), 151 states have internal predecessors, (153), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 21:03:54,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 159 transitions. [2024-10-14 21:03:54,954 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 159 transitions. Word has length 34 [2024-10-14 21:03:54,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:03:54,955 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 159 transitions. [2024-10-14 21:03:54,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 21:03:54,956 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 159 transitions. [2024-10-14 21:03:54,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-10-14 21:03:54,956 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:03:54,956 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 21:03:54,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 21:03:54,957 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2024-10-14 21:03:54,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:03:54,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1264489984, now seen corresponding path program 1 times [2024-10-14 21:03:54,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:03:54,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374585984] [2024-10-14 21:03:54,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:03:54,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:03:54,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 21:03:54,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [49565203] [2024-10-14 21:03:54,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:03:54,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:03:54,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 21:03:54,985 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) [2024-10-14 21:03:54,987 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 21:03:55,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:03:55,030 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 21:03:55,031 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 21:03:55,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 21:03:55,122 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 21:03:55,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:03:55,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374585984] [2024-10-14 21:03:55,123 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 21:03:55,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [49565203] [2024-10-14 21:03:55,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [49565203] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 21:03:55,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 21:03:55,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 21:03:55,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400169145] [2024-10-14 21:03:55,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 21:03:55,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 21:03:55,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:03:55,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 21:03:55,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 21:03:55,124 INFO L87 Difference]: Start difference. First operand 156 states and 159 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 21:03:55,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:03:55,399 INFO L93 Difference]: Finished difference Result 257 states and 281 transitions. [2024-10-14 21:03:55,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 21:03:55,400 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2024-10-14 21:03:55,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:03:55,401 INFO L225 Difference]: With dead ends: 257 [2024-10-14 21:03:55,401 INFO L226 Difference]: Without dead ends: 231 [2024-10-14 21:03:55,402 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 21:03:55,402 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 72 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 21:03:55,403 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 120 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 21:03:55,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2024-10-14 21:03:55,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 221. [2024-10-14 21:03:55,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 163 states have (on average 1.4846625766871167) internal successors, (242), 214 states have internal predecessors, (242), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-14 21:03:55,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 252 transitions. [2024-10-14 21:03:55,411 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 252 transitions. Word has length 39 [2024-10-14 21:03:55,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:03:55,411 INFO L471 AbstractCegarLoop]: Abstraction has 221 states and 252 transitions. [2024-10-14 21:03:55,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 21:03:55,412 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 252 transitions. [2024-10-14 21:03:55,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-10-14 21:03:55,413 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:03:55,413 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 21:03:55,429 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-14 21:03:55,616 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 [2024-10-14 21:03:55,617 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2024-10-14 21:03:55,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:03:55,617 INFO L85 PathProgramCache]: Analyzing trace with hash 737149168, now seen corresponding path program 1 times [2024-10-14 21:03:55,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:03:55,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662057866] [2024-10-14 21:03:55,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:03:55,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:03:55,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:03:55,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-14 21:03:55,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:03:55,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 21:03:55,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:03:55,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662057866] [2024-10-14 21:03:55,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662057866] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 21:03:55,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 21:03:55,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 21:03:55,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134762157] [2024-10-14 21:03:55,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 21:03:55,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 21:03:55,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:03:55,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 21:03:55,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 21:03:55,765 INFO L87 Difference]: Start difference. First operand 221 states and 252 transitions. Second operand has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 21:03:55,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:03:55,858 INFO L93 Difference]: Finished difference Result 222 states and 252 transitions. [2024-10-14 21:03:55,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 21:03:55,859 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42 [2024-10-14 21:03:55,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:03:55,861 INFO L225 Difference]: With dead ends: 222 [2024-10-14 21:03:55,861 INFO L226 Difference]: Without dead ends: 221 [2024-10-14 21:03:55,861 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 21:03:55,862 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 34 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 21:03:55,863 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 184 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 21:03:55,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2024-10-14 21:03:55,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 221. [2024-10-14 21:03:55,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 163 states have (on average 1.478527607361963) internal successors, (241), 214 states have internal predecessors, (241), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-14 21:03:55,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 251 transitions. [2024-10-14 21:03:55,875 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 251 transitions. Word has length 42 [2024-10-14 21:03:55,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:03:55,876 INFO L471 AbstractCegarLoop]: Abstraction has 221 states and 251 transitions. [2024-10-14 21:03:55,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 21:03:55,876 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 251 transitions. [2024-10-14 21:03:55,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-10-14 21:03:55,881 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:03:55,881 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 21:03:55,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 21:03:55,881 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2024-10-14 21:03:55,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:03:55,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1376787844, now seen corresponding path program 1 times [2024-10-14 21:03:55,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:03:55,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773585347] [2024-10-14 21:03:55,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:03:55,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:03:55,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:03:55,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-14 21:03:55,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:03:55,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 21:03:55,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:03:55,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773585347] [2024-10-14 21:03:55,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773585347] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 21:03:55,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 21:03:55,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 21:03:55,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442438960] [2024-10-14 21:03:55,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 21:03:55,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 21:03:55,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:03:55,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 21:03:55,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 21:03:55,986 INFO L87 Difference]: Start difference. First operand 221 states and 251 transitions. Second operand has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 21:03:56,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:03:56,062 INFO L93 Difference]: Finished difference Result 222 states and 251 transitions. [2024-10-14 21:03:56,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 21:03:56,063 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 43 [2024-10-14 21:03:56,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:03:56,064 INFO L225 Difference]: With dead ends: 222 [2024-10-14 21:03:56,064 INFO L226 Difference]: Without dead ends: 221 [2024-10-14 21:03:56,065 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 21:03:56,065 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 30 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 21:03:56,069 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 189 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 21:03:56,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2024-10-14 21:03:56,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 221. [2024-10-14 21:03:56,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 163 states have (on average 1.4723926380368098) internal successors, (240), 214 states have internal predecessors, (240), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-14 21:03:56,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 250 transitions. [2024-10-14 21:03:56,079 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 250 transitions. Word has length 43 [2024-10-14 21:03:56,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:03:56,079 INFO L471 AbstractCegarLoop]: Abstraction has 221 states and 250 transitions. [2024-10-14 21:03:56,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 21:03:56,080 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 250 transitions. [2024-10-14 21:03:56,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-10-14 21:03:56,083 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:03:56,084 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 21:03:56,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 21:03:56,084 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2024-10-14 21:03:56,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:03:56,084 INFO L85 PathProgramCache]: Analyzing trace with hash 243192102, now seen corresponding path program 1 times [2024-10-14 21:03:56,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:03:56,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624686055] [2024-10-14 21:03:56,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:03:56,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:03:56,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:03:56,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-14 21:03:56,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:03:56,205 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 21:03:56,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:03:56,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624686055] [2024-10-14 21:03:56,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624686055] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 21:03:56,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1972240649] [2024-10-14 21:03:56,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:03:56,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:03:56,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 21:03:56,209 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) [2024-10-14 21:03:56,211 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 21:03:56,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:03:56,249 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 21:03:56,251 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 21:03:56,351 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 21:03:56,351 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 21:03:56,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1972240649] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 21:03:56,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 21:03:56,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-10-14 21:03:56,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252611571] [2024-10-14 21:03:56,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 21:03:56,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 21:03:56,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:03:56,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 21:03:56,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-14 21:03:56,353 INFO L87 Difference]: Start difference. First operand 221 states and 250 transitions. Second operand has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 21:03:56,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:03:56,380 INFO L93 Difference]: Finished difference Result 221 states and 250 transitions. [2024-10-14 21:03:56,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 21:03:56,380 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 45 [2024-10-14 21:03:56,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:03:56,381 INFO L225 Difference]: With dead ends: 221 [2024-10-14 21:03:56,381 INFO L226 Difference]: Without dead ends: 220 [2024-10-14 21:03:56,382 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-10-14 21:03:56,382 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 86 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 354 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 [2024-10-14 21:03:56,382 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 354 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 21:03:56,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2024-10-14 21:03:56,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2024-10-14 21:03:56,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 163 states have (on average 1.460122699386503) internal successors, (238), 213 states have internal predecessors, (238), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-14 21:03:56,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 248 transitions. [2024-10-14 21:03:56,389 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 248 transitions. Word has length 45 [2024-10-14 21:03:56,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:03:56,390 INFO L471 AbstractCegarLoop]: Abstraction has 220 states and 248 transitions. [2024-10-14 21:03:56,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 21:03:56,390 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 248 transitions. [2024-10-14 21:03:56,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-10-14 21:03:56,391 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:03:56,391 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 21:03:56,408 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-14 21:03:56,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:03:56,592 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2024-10-14 21:03:56,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:03:56,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1050979389, now seen corresponding path program 1 times [2024-10-14 21:03:56,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:03:56,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160181864] [2024-10-14 21:03:56,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:03:56,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:03:56,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:03:56,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-14 21:03:56,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:03:56,710 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 21:03:56,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:03:56,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160181864] [2024-10-14 21:03:56,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160181864] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 21:03:56,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [708990729] [2024-10-14 21:03:56,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:03:56,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:03:56,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 21:03:56,713 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) [2024-10-14 21:03:56,714 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-14 21:03:56,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:03:56,759 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 21:03:56,760 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 21:03:56,852 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 21:03:56,853 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 21:03:56,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [708990729] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 21:03:56,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 21:03:56,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-10-14 21:03:56,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601108489] [2024-10-14 21:03:56,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 21:03:56,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 21:03:56,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:03:56,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 21:03:56,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-14 21:03:56,856 INFO L87 Difference]: Start difference. First operand 220 states and 248 transitions. Second operand has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 21:03:56,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:03:56,905 INFO L93 Difference]: Finished difference Result 303 states and 341 transitions. [2024-10-14 21:03:56,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 21:03:56,906 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 46 [2024-10-14 21:03:56,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:03:56,908 INFO L225 Difference]: With dead ends: 303 [2024-10-14 21:03:56,908 INFO L226 Difference]: Without dead ends: 302 [2024-10-14 21:03:56,908 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-10-14 21:03:56,909 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 84 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 561 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 [2024-10-14 21:03:56,910 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 561 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 21:03:56,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2024-10-14 21:03:56,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 237. [2024-10-14 21:03:56,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 178 states have (on average 1.4606741573033708) internal successors, (260), 229 states have internal predecessors, (260), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2024-10-14 21:03:56,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 274 transitions. [2024-10-14 21:03:56,920 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 274 transitions. Word has length 46 [2024-10-14 21:03:56,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:03:56,921 INFO L471 AbstractCegarLoop]: Abstraction has 237 states and 274 transitions. [2024-10-14 21:03:56,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 21:03:56,921 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 274 transitions. [2024-10-14 21:03:56,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-10-14 21:03:56,922 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:03:56,922 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 21:03:56,938 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-14 21:03:57,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:03:57,123 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2024-10-14 21:03:57,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:03:57,123 INFO L85 PathProgramCache]: Analyzing trace with hash -673876795, now seen corresponding path program 1 times [2024-10-14 21:03:57,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:03:57,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98519122] [2024-10-14 21:03:57,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:03:57,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:03:57,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 21:03:57,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1098364358] [2024-10-14 21:03:57,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:03:57,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:03:57,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 21:03:57,142 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) [2024-10-14 21:03:57,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-14 21:03:57,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:03:57,191 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-14 21:03:57,193 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 21:03:57,390 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 21:03:57,391 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 21:03:57,555 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 21:03:57,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:03:57,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98519122] [2024-10-14 21:03:57,557 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 21:03:57,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1098364358] [2024-10-14 21:03:57,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1098364358] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-14 21:03:57,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 21:03:57,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2024-10-14 21:03:57,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750182869] [2024-10-14 21:03:57,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 21:03:57,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 21:03:57,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:03:57,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 21:03:57,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-10-14 21:03:57,562 INFO L87 Difference]: Start difference. First operand 237 states and 274 transitions. Second operand has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 21:03:58,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:03:58,234 INFO L93 Difference]: Finished difference Result 279 states and 339 transitions. [2024-10-14 21:03:58,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 21:03:58,235 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2024-10-14 21:03:58,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:03:58,237 INFO L225 Difference]: With dead ends: 279 [2024-10-14 21:03:58,237 INFO L226 Difference]: Without dead ends: 276 [2024-10-14 21:03:58,237 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-10-14 21:03:58,238 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 200 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 21:03:58,238 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 102 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 21:03:58,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2024-10-14 21:03:58,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 234. [2024-10-14 21:03:58,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 178 states have (on average 1.4325842696629214) internal successors, (255), 226 states have internal predecessors, (255), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2024-10-14 21:03:58,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 269 transitions. [2024-10-14 21:03:58,248 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 269 transitions. Word has length 48 [2024-10-14 21:03:58,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:03:58,248 INFO L471 AbstractCegarLoop]: Abstraction has 234 states and 269 transitions. [2024-10-14 21:03:58,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 21:03:58,248 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 269 transitions. [2024-10-14 21:03:58,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-10-14 21:03:58,249 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:03:58,249 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 21:03:58,266 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-14 21:03:58,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-14 21:03:58,454 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2024-10-14 21:03:58,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:03:58,454 INFO L85 PathProgramCache]: Analyzing trace with hash -673876784, now seen corresponding path program 1 times [2024-10-14 21:03:58,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:03:58,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513252727] [2024-10-14 21:03:58,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:03:58,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:03:58,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:03:58,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-14 21:03:58,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:03:58,536 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 21:03:58,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:03:58,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513252727] [2024-10-14 21:03:58,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513252727] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 21:03:58,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1226131719] [2024-10-14 21:03:58,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:03:58,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:03:58,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 21:03:58,538 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) [2024-10-14 21:03:58,540 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-14 21:03:58,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:03:58,590 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 21:03:58,591 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 21:03:58,660 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 21:03:58,661 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 21:03:58,754 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 21:03:58,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1226131719] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 21:03:58,754 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 21:03:58,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 6] total 13 [2024-10-14 21:03:58,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524590314] [2024-10-14 21:03:58,755 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 21:03:58,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 21:03:58,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:03:58,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 21:03:58,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2024-10-14 21:03:58,756 INFO L87 Difference]: Start difference. First operand 234 states and 269 transitions. Second operand has 13 states, 13 states have (on average 7.384615384615385) internal successors, (96), 13 states have internal predecessors, (96), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 21:03:58,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:03:58,870 INFO L93 Difference]: Finished difference Result 471 states and 492 transitions. [2024-10-14 21:03:58,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 21:03:58,870 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.384615384615385) internal successors, (96), 13 states have internal predecessors, (96), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 48 [2024-10-14 21:03:58,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:03:58,873 INFO L225 Difference]: With dead ends: 471 [2024-10-14 21:03:58,873 INFO L226 Difference]: Without dead ends: 389 [2024-10-14 21:03:58,874 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2024-10-14 21:03:58,874 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 243 mSDsluCounter, 838 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 993 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 21:03:58,874 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 993 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 21:03:58,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2024-10-14 21:03:58,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 294. [2024-10-14 21:03:58,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 234 states have (on average 1.4572649572649572) internal successors, (341), 282 states have internal predecessors, (341), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 21:03:58,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 357 transitions. [2024-10-14 21:03:58,886 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 357 transitions. Word has length 48 [2024-10-14 21:03:58,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:03:58,886 INFO L471 AbstractCegarLoop]: Abstraction has 294 states and 357 transitions. [2024-10-14 21:03:58,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.384615384615385) internal successors, (96), 13 states have internal predecessors, (96), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 21:03:58,887 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 357 transitions. [2024-10-14 21:03:58,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-10-14 21:03:58,887 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:03:58,887 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 21:03:58,904 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-14 21:03:59,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:03:59,088 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2024-10-14 21:03:59,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:03:59,089 INFO L85 PathProgramCache]: Analyzing trace with hash 584655885, now seen corresponding path program 1 times [2024-10-14 21:03:59,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:03:59,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496223346] [2024-10-14 21:03:59,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:03:59,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:03:59,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 21:03:59,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [486278874] [2024-10-14 21:03:59,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:03:59,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:03:59,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 21:03:59,107 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) [2024-10-14 21:03:59,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-14 21:03:59,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:03:59,149 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-14 21:03:59,151 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 21:03:59,304 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 21:03:59,305 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 21:03:59,432 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 21:03:59,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:03:59,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496223346] [2024-10-14 21:03:59,432 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 21:03:59,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [486278874] [2024-10-14 21:03:59,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [486278874] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 21:03:59,432 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-14 21:03:59,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-10-14 21:03:59,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486251950] [2024-10-14 21:03:59,433 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-14 21:03:59,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 21:03:59,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:03:59,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 21:03:59,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-10-14 21:03:59,434 INFO L87 Difference]: Start difference. First operand 294 states and 357 transitions. Second operand has 8 states, 7 states have (on average 13.0) internal successors, (91), 8 states have internal predecessors, (91), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 21:04:00,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:04:00,062 INFO L93 Difference]: Finished difference Result 315 states and 363 transitions. [2024-10-14 21:04:00,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 21:04:00,062 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.0) internal successors, (91), 8 states have internal predecessors, (91), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 49 [2024-10-14 21:04:00,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:04:00,064 INFO L225 Difference]: With dead ends: 315 [2024-10-14 21:04:00,064 INFO L226 Difference]: Without dead ends: 303 [2024-10-14 21:04:00,064 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-10-14 21:04:00,064 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 187 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 21:04:00,065 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 232 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 21:04:00,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2024-10-14 21:04:00,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 289. [2024-10-14 21:04:00,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 235 states have (on average 1.374468085106383) internal successors, (323), 276 states have internal predecessors, (323), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 21:04:00,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 339 transitions. [2024-10-14 21:04:00,074 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 339 transitions. Word has length 49 [2024-10-14 21:04:00,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:04:00,075 INFO L471 AbstractCegarLoop]: Abstraction has 289 states and 339 transitions. [2024-10-14 21:04:00,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.0) internal successors, (91), 8 states have internal predecessors, (91), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 21:04:00,075 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 339 transitions. [2024-10-14 21:04:00,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-14 21:04:00,076 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:04:00,076 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 21:04:00,092 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-14 21:04:00,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:04:00,277 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2024-10-14 21:04:00,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:04:00,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1243625267, now seen corresponding path program 1 times [2024-10-14 21:04:00,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:04:00,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425346189] [2024-10-14 21:04:00,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:04:00,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:04:00,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 21:04:00,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [26272643] [2024-10-14 21:04:00,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:04:00,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:04:00,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 21:04:00,301 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) [2024-10-14 21:04:00,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-14 21:04:00,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:04:00,345 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-14 21:04:00,347 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 21:04:00,534 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 21:04:00,534 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 21:04:00,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:04:00,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425346189] [2024-10-14 21:04:00,535 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 21:04:00,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [26272643] [2024-10-14 21:04:00,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [26272643] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 21:04:00,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 21:04:00,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 21:04:00,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609240645] [2024-10-14 21:04:00,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 21:04:00,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 21:04:00,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:04:00,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 21:04:00,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 21:04:00,536 INFO L87 Difference]: Start difference. First operand 289 states and 339 transitions. Second operand has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 21:04:01,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:04:01,171 INFO L93 Difference]: Finished difference Result 299 states and 349 transitions. [2024-10-14 21:04:01,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 21:04:01,172 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 56 [2024-10-14 21:04:01,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:04:01,173 INFO L225 Difference]: With dead ends: 299 [2024-10-14 21:04:01,174 INFO L226 Difference]: Without dead ends: 228 [2024-10-14 21:04:01,174 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 21:04:01,174 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 110 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 21:04:01,175 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 53 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 21:04:01,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2024-10-14 21:04:01,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 216. [2024-10-14 21:04:01,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 188 states have (on average 1.1861702127659575) internal successors, (223), 205 states have internal predecessors, (223), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-14 21:04:01,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 233 transitions. [2024-10-14 21:04:01,185 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 233 transitions. Word has length 56 [2024-10-14 21:04:01,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:04:01,186 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 233 transitions. [2024-10-14 21:04:01,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 21:04:01,186 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 233 transitions. [2024-10-14 21:04:01,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-14 21:04:01,188 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:04:01,188 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 21:04:01,204 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-14 21:04:01,388 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,SelfDestructingSolverStorable13 [2024-10-14 21:04:01,389 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2024-10-14 21:04:01,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:04:01,389 INFO L85 PathProgramCache]: Analyzing trace with hash -497571513, now seen corresponding path program 1 times [2024-10-14 21:04:01,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:04:01,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306817317] [2024-10-14 21:04:01,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:04:01,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:04:01,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 21:04:01,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [556222032] [2024-10-14 21:04:01,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:04:01,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:04:01,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 21:04:01,419 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) [2024-10-14 21:04:01,420 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-14 21:04:01,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:04:01,469 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 21:04:01,471 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 21:04:01,695 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 21:04:01,695 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 21:04:01,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:04:01,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306817317] [2024-10-14 21:04:01,882 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 21:04:01,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [556222032] [2024-10-14 21:04:01,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [556222032] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 21:04:01,882 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 21:04:01,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-10-14 21:04:01,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839559509] [2024-10-14 21:04:01,883 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 21:04:01,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 21:04:01,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:04:01,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 21:04:01,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-14 21:04:01,884 INFO L87 Difference]: Start difference. First operand 216 states and 233 transitions. Second operand has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 21:04:02,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:04:02,037 INFO L93 Difference]: Finished difference Result 216 states and 233 transitions. [2024-10-14 21:04:02,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 21:04:02,037 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 76 [2024-10-14 21:04:02,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:04:02,038 INFO L225 Difference]: With dead ends: 216 [2024-10-14 21:04:02,038 INFO L226 Difference]: Without dead ends: 214 [2024-10-14 21:04:02,039 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2024-10-14 21:04:02,039 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 63 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 21:04:02,039 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 44 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 21:04:02,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2024-10-14 21:04:02,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2024-10-14 21:04:02,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 188 states have (on average 1.1595744680851063) internal successors, (218), 203 states have internal predecessors, (218), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-14 21:04:02,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 228 transitions. [2024-10-14 21:04:02,049 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 228 transitions. Word has length 76 [2024-10-14 21:04:02,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:04:02,049 INFO L471 AbstractCegarLoop]: Abstraction has 214 states and 228 transitions. [2024-10-14 21:04:02,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 21:04:02,049 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 228 transitions. [2024-10-14 21:04:02,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-14 21:04:02,051 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:04:02,052 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 21:04:02,068 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-14 21:04:02,252 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,SelfDestructingSolverStorable14 [2024-10-14 21:04:02,252 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2024-10-14 21:04:02,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:04:02,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1755152404, now seen corresponding path program 1 times [2024-10-14 21:04:02,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:04:02,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427860478] [2024-10-14 21:04:02,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:04:02,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:04:02,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 21:04:02,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [950232775] [2024-10-14 21:04:02,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:04:02,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:04:02,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 21:04:02,270 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) [2024-10-14 21:04:02,271 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-14 21:04:02,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:04:02,318 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-14 21:04:02,320 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 21:04:02,557 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 21:04:02,557 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 21:04:02,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:04:02,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427860478] [2024-10-14 21:04:02,810 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 21:04:02,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [950232775] [2024-10-14 21:04:02,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [950232775] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 21:04:02,810 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 21:04:02,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-10-14 21:04:02,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012690810] [2024-10-14 21:04:02,811 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 21:04:02,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 21:04:02,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:04:02,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 21:04:02,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-10-14 21:04:02,812 INFO L87 Difference]: Start difference. First operand 214 states and 228 transitions. Second operand has 6 states, 5 states have (on average 14.0) internal successors, (70), 6 states have internal predecessors, (70), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 21:04:03,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:04:03,056 INFO L93 Difference]: Finished difference Result 223 states and 236 transitions. [2024-10-14 21:04:03,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 21:04:03,056 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 6 states have internal predecessors, (70), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 77 [2024-10-14 21:04:03,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:04:03,058 INFO L225 Difference]: With dead ends: 223 [2024-10-14 21:04:03,058 INFO L226 Difference]: Without dead ends: 219 [2024-10-14 21:04:03,058 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-10-14 21:04:03,059 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 6 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 21:04:03,059 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 106 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 21:04:03,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2024-10-14 21:04:03,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2024-10-14 21:04:03,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 193 states have (on average 1.150259067357513) internal successors, (222), 208 states have internal predecessors, (222), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-14 21:04:03,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 232 transitions. [2024-10-14 21:04:03,070 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 232 transitions. Word has length 77 [2024-10-14 21:04:03,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:04:03,070 INFO L471 AbstractCegarLoop]: Abstraction has 219 states and 232 transitions. [2024-10-14 21:04:03,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 6 states have internal predecessors, (70), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 21:04:03,071 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 232 transitions. [2024-10-14 21:04:03,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-10-14 21:04:03,072 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:04:03,072 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 21:04:03,089 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-10-14 21:04:03,272 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,SelfDestructingSolverStorable15 [2024-10-14 21:04:03,273 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2024-10-14 21:04:03,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:04:03,273 INFO L85 PathProgramCache]: Analyzing trace with hash 813530251, now seen corresponding path program 1 times [2024-10-14 21:04:03,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:04:03,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725680963] [2024-10-14 21:04:03,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:04:03,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:04:03,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 21:04:03,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1446095701] [2024-10-14 21:04:03,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:04:03,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:04:03,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 21:04:03,288 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) [2024-10-14 21:04:03,290 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-14 21:04:03,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:04:03,335 INFO L255 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-14 21:04:03,337 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 21:04:03,541 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 21:04:03,541 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 21:04:03,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:04:03,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725680963] [2024-10-14 21:04:03,692 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 21:04:03,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1446095701] [2024-10-14 21:04:03,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1446095701] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 21:04:03,692 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 21:04:03,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-10-14 21:04:03,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185899769] [2024-10-14 21:04:03,693 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 21:04:03,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 21:04:03,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:04:03,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 21:04:03,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-14 21:04:03,696 INFO L87 Difference]: Start difference. First operand 219 states and 232 transitions. Second operand has 5 states, 4 states have (on average 18.25) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 21:04:03,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:04:03,933 INFO L93 Difference]: Finished difference Result 220 states and 232 transitions. [2024-10-14 21:04:03,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 21:04:03,934 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.25) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 80 [2024-10-14 21:04:03,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:04:03,935 INFO L225 Difference]: With dead ends: 220 [2024-10-14 21:04:03,935 INFO L226 Difference]: Without dead ends: 214 [2024-10-14 21:04:03,935 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-10-14 21:04:03,935 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 6 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 21:04:03,936 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 113 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 21:04:03,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2024-10-14 21:04:03,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2024-10-14 21:04:03,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 188 states have (on average 1.148936170212766) internal successors, (216), 203 states have internal predecessors, (216), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-14 21:04:03,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 226 transitions. [2024-10-14 21:04:03,944 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 226 transitions. Word has length 80 [2024-10-14 21:04:03,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:04:03,944 INFO L471 AbstractCegarLoop]: Abstraction has 214 states and 226 transitions. [2024-10-14 21:04:03,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.25) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 21:04:03,945 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 226 transitions. [2024-10-14 21:04:03,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-14 21:04:03,945 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:04:03,945 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 21:04:03,962 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-10-14 21:04:04,146 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,SelfDestructingSolverStorable16 [2024-10-14 21:04:04,146 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2024-10-14 21:04:04,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:04:04,146 INFO L85 PathProgramCache]: Analyzing trace with hash 544222010, now seen corresponding path program 1 times [2024-10-14 21:04:04,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:04:04,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156329837] [2024-10-14 21:04:04,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:04:04,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:04:04,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 21:04:04,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2117247018] [2024-10-14 21:04:04,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:04:04,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:04:04,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 21:04:04,166 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 21:04:04,168 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-14 21:04:04,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:04:04,218 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-14 21:04:04,220 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 21:04:04,303 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 21:04:04,303 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 21:04:04,464 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 21:04:04,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:04:04,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156329837] [2024-10-14 21:04:04,464 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 21:04:04,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2117247018] [2024-10-14 21:04:04,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2117247018] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 21:04:04,465 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-14 21:04:04,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-10-14 21:04:04,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123303202] [2024-10-14 21:04:04,465 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-14 21:04:04,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 21:04:04,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:04:04,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 21:04:04,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-14 21:04:04,466 INFO L87 Difference]: Start difference. First operand 214 states and 226 transitions. Second operand has 8 states, 7 states have (on average 20.714285714285715) internal successors, (145), 8 states have internal predecessors, (145), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 21:04:04,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:04:04,716 INFO L93 Difference]: Finished difference Result 223 states and 234 transitions. [2024-10-14 21:04:04,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 21:04:04,717 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 20.714285714285715) internal successors, (145), 8 states have internal predecessors, (145), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 81 [2024-10-14 21:04:04,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:04:04,718 INFO L225 Difference]: With dead ends: 223 [2024-10-14 21:04:04,718 INFO L226 Difference]: Without dead ends: 217 [2024-10-14 21:04:04,718 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2024-10-14 21:04:04,719 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 194 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 21:04:04,719 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 141 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 21:04:04,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2024-10-14 21:04:04,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 210. [2024-10-14 21:04:04,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 188 states have (on average 1.101063829787234) internal successors, (207), 199 states have internal predecessors, (207), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-14 21:04:04,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 217 transitions. [2024-10-14 21:04:04,730 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 217 transitions. Word has length 81 [2024-10-14 21:04:04,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:04:04,730 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 217 transitions. [2024-10-14 21:04:04,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 20.714285714285715) internal successors, (145), 8 states have internal predecessors, (145), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 21:04:04,730 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 217 transitions. [2024-10-14 21:04:04,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-10-14 21:04:04,731 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:04:04,731 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2024-10-14 21:04:04,747 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-10-14 21:04:04,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-10-14 21:04:04,932 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2024-10-14 21:04:04,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:04:04,932 INFO L85 PathProgramCache]: Analyzing trace with hash -829717042, now seen corresponding path program 2 times [2024-10-14 21:04:04,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:04:04,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292818959] [2024-10-14 21:04:04,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:04:04,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:04:04,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 21:04:04,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1980012684] [2024-10-14 21:04:04,950 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 21:04:04,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:04:04,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 21:04:04,952 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 21:04:04,954 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-14 21:04:05,001 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-14 21:04:05,001 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 21:04:05,002 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 21:04:05,004 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 21:04:05,370 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-10-14 21:04:05,370 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 21:04:05,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:04:05,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292818959] [2024-10-14 21:04:05,371 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 21:04:05,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1980012684] [2024-10-14 21:04:05,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1980012684] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 21:04:05,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 21:04:05,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 21:04:05,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652789659] [2024-10-14 21:04:05,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 21:04:05,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 21:04:05,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:04:05,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 21:04:05,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 21:04:05,373 INFO L87 Difference]: Start difference. First operand 210 states and 217 transitions. Second operand has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 21:04:07,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-14 21:04:07,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:04:07,598 INFO L93 Difference]: Finished difference Result 212 states and 217 transitions. [2024-10-14 21:04:07,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 21:04:07,599 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 119 [2024-10-14 21:04:07,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:04:07,600 INFO L225 Difference]: With dead ends: 212 [2024-10-14 21:04:07,600 INFO L226 Difference]: Without dead ends: 203 [2024-10-14 21:04:07,600 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 21:04:07,600 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 42 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-14 21:04:07,600 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 59 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-14 21:04:07,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2024-10-14 21:04:07,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2024-10-14 21:04:07,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 182 states have (on average 1.0769230769230769) internal successors, (196), 192 states have internal predecessors, (196), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-14 21:04:07,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 206 transitions. [2024-10-14 21:04:07,609 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 206 transitions. Word has length 119 [2024-10-14 21:04:07,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:04:07,610 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 206 transitions. [2024-10-14 21:04:07,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 21:04:07,610 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 206 transitions. [2024-10-14 21:04:07,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-10-14 21:04:07,611 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:04:07,611 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1] [2024-10-14 21:04:07,627 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-10-14 21:04:07,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:04:07,818 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2024-10-14 21:04:07,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:04:07,819 INFO L85 PathProgramCache]: Analyzing trace with hash -829715856, now seen corresponding path program 1 times [2024-10-14 21:04:07,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:04:07,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249133571] [2024-10-14 21:04:07,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:04:07,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:04:07,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:04:07,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-14 21:04:07,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:04:07,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-14 21:04:07,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:04:07,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-14 21:04:07,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:04:07,945 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-10-14 21:04:07,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:04:07,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249133571] [2024-10-14 21:04:07,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249133571] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 21:04:07,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1939626251] [2024-10-14 21:04:07,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:04:07,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:04:07,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 21:04:07,948 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 21:04:07,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-10-14 21:04:08,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:04:08,002 INFO L255 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 21:04:08,004 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 21:04:08,129 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 21:04:08,130 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 21:04:08,271 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 21:04:08,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1939626251] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 21:04:08,271 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 21:04:08,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4, 4] total 9 [2024-10-14 21:04:08,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724063325] [2024-10-14 21:04:08,272 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 21:04:08,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 21:04:08,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:04:08,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 21:04:08,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2024-10-14 21:04:08,273 INFO L87 Difference]: Start difference. First operand 203 states and 206 transitions. Second operand has 10 states, 9 states have (on average 28.0) internal successors, (252), 10 states have internal predecessors, (252), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-10-14 21:04:08,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:04:08,380 INFO L93 Difference]: Finished difference Result 232 states and 234 transitions. [2024-10-14 21:04:08,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 21:04:08,380 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 28.0) internal successors, (252), 10 states have internal predecessors, (252), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Word has length 119 [2024-10-14 21:04:08,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:04:08,381 INFO L225 Difference]: With dead ends: 232 [2024-10-14 21:04:08,381 INFO L226 Difference]: Without dead ends: 231 [2024-10-14 21:04:08,382 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=122, Unknown=0, NotChecked=0, Total=210 [2024-10-14 21:04:08,382 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 127 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 21:04:08,382 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 256 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 21:04:08,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2024-10-14 21:04:08,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 202. [2024-10-14 21:04:08,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 182 states have (on average 1.065934065934066) internal successors, (194), 191 states have internal predecessors, (194), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-14 21:04:08,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 204 transitions. [2024-10-14 21:04:08,392 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 204 transitions. Word has length 119 [2024-10-14 21:04:08,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:04:08,393 INFO L471 AbstractCegarLoop]: Abstraction has 202 states and 204 transitions. [2024-10-14 21:04:08,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 28.0) internal successors, (252), 10 states have internal predecessors, (252), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-10-14 21:04:08,393 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 204 transitions. [2024-10-14 21:04:08,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-14 21:04:08,394 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:04:08,394 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1] [2024-10-14 21:04:08,411 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-10-14 21:04:08,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:04:08,595 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2024-10-14 21:04:08,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:04:08,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1861199030, now seen corresponding path program 1 times [2024-10-14 21:04:08,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:04:08,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277431314] [2024-10-14 21:04:08,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:04:08,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:04:08,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 21:04:08,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [114177884] [2024-10-14 21:04:08,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:04:08,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:04:08,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 21:04:08,614 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 21:04:08,618 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-10-14 21:04:08,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:04:08,677 INFO L255 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 21:04:08,678 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 21:04:08,810 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 21:04:08,810 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 21:04:08,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:04:08,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277431314] [2024-10-14 21:04:08,876 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 21:04:08,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [114177884] [2024-10-14 21:04:08,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [114177884] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 21:04:08,876 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 21:04:08,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-10-14 21:04:08,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912262539] [2024-10-14 21:04:08,877 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 21:04:08,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 21:04:08,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:04:08,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 21:04:08,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2024-10-14 21:04:08,878 INFO L87 Difference]: Start difference. First operand 202 states and 204 transitions. Second operand has 6 states, 5 states have (on average 22.6) internal successors, (113), 6 states have internal predecessors, (113), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 21:04:09,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:04:09,053 INFO L93 Difference]: Finished difference Result 233 states and 236 transitions. [2024-10-14 21:04:09,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 21:04:09,053 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 22.6) internal successors, (113), 6 states have internal predecessors, (113), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 125 [2024-10-14 21:04:09,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:04:09,054 INFO L225 Difference]: With dead ends: 233 [2024-10-14 21:04:09,054 INFO L226 Difference]: Without dead ends: 231 [2024-10-14 21:04:09,054 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2024-10-14 21:04:09,055 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 34 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 21:04:09,055 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 97 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 21:04:09,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2024-10-14 21:04:09,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 208. [2024-10-14 21:04:09,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 188 states have (on average 1.0638297872340425) internal successors, (200), 197 states have internal predecessors, (200), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-14 21:04:09,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 210 transitions. [2024-10-14 21:04:09,064 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 210 transitions. Word has length 125 [2024-10-14 21:04:09,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:04:09,064 INFO L471 AbstractCegarLoop]: Abstraction has 208 states and 210 transitions. [2024-10-14 21:04:09,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 22.6) internal successors, (113), 6 states have internal predecessors, (113), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 21:04:09,064 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 210 transitions. [2024-10-14 21:04:09,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-10-14 21:04:09,065 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:04:09,065 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1] [2024-10-14 21:04:09,082 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-10-14 21:04:09,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:04:09,266 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2024-10-14 21:04:09,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:04:09,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1905876344, now seen corresponding path program 1 times [2024-10-14 21:04:09,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:04:09,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421361432] [2024-10-14 21:04:09,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:04:09,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:04:09,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 21:04:09,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [475580060] [2024-10-14 21:04:09,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:04:09,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:04:09,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 21:04:09,298 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 21:04:09,299 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-10-14 21:04:09,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:04:09,353 INFO L255 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-10-14 21:04:09,355 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 21:04:09,734 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 3 proven. 117 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-14 21:04:09,734 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 21:04:10,963 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 3 proven. 117 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-14 21:04:10,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:04:10,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421361432] [2024-10-14 21:04:10,964 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 21:04:10,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [475580060] [2024-10-14 21:04:10,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [475580060] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 21:04:10,964 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-14 21:04:10,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11] total 18 [2024-10-14 21:04:10,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166497145] [2024-10-14 21:04:10,964 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-14 21:04:10,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-14 21:04:10,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:04:10,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-14 21:04:10,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-10-14 21:04:10,966 INFO L87 Difference]: Start difference. First operand 208 states and 210 transitions. Second operand has 19 states, 18 states have (on average 12.88888888888889) internal successors, (232), 19 states have internal predecessors, (232), 6 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-14 21:04:13,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-14 21:04:15,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-14 21:04:19,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-14 21:04:23,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-14 21:04:26,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-14 21:04:30,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-14 21:04:35,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-14 21:04:35,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:04:35,446 INFO L93 Difference]: Finished difference Result 225 states and 229 transitions. [2024-10-14 21:04:35,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-14 21:04:35,447 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 12.88888888888889) internal successors, (232), 19 states have internal predecessors, (232), 6 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 127 [2024-10-14 21:04:35,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:04:35,448 INFO L225 Difference]: With dead ends: 225 [2024-10-14 21:04:35,448 INFO L226 Difference]: Without dead ends: 224 [2024-10-14 21:04:35,448 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=170, Invalid=430, Unknown=0, NotChecked=0, Total=600 [2024-10-14 21:04:35,449 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 142 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 909 mSolverCounterSat, 28 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 909 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.1s IncrementalHoareTripleChecker+Time [2024-10-14 21:04:35,449 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 211 Invalid, 941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 909 Invalid, 4 Unknown, 0 Unchecked, 24.1s Time] [2024-10-14 21:04:35,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2024-10-14 21:04:35,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 207. [2024-10-14 21:04:35,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 188 states have (on average 1.053191489361702) internal successors, (198), 196 states have internal predecessors, (198), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-14 21:04:35,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 208 transitions. [2024-10-14 21:04:35,460 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 208 transitions. Word has length 127 [2024-10-14 21:04:35,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:04:35,460 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 208 transitions. [2024-10-14 21:04:35,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 12.88888888888889) internal successors, (232), 19 states have internal predecessors, (232), 6 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-14 21:04:35,461 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 208 transitions. [2024-10-14 21:04:35,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-10-14 21:04:35,462 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:04:35,462 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1] [2024-10-14 21:04:35,481 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-10-14 21:04:35,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-10-14 21:04:35,663 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2024-10-14 21:04:35,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:04:35,664 INFO L85 PathProgramCache]: Analyzing trace with hash -878207743, now seen corresponding path program 2 times [2024-10-14 21:04:35,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:04:35,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900279342] [2024-10-14 21:04:35,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:04:35,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:04:35,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 21:04:35,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [532992996] [2024-10-14 21:04:35,688 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 21:04:35,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:04:35,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 21:04:35,690 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 21:04:35,691 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-10-14 21:04:35,747 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-14 21:04:35,747 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 21:04:35,748 INFO L255 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-14 21:04:35,750 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 21:04:36,129 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 21:04:36,130 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 21:04:36,446 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 21:04:36,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:04:36,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900279342] [2024-10-14 21:04:36,446 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 21:04:36,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [532992996] [2024-10-14 21:04:36,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [532992996] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 21:04:36,447 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-14 21:04:36,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2024-10-14 21:04:36,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682507557] [2024-10-14 21:04:36,447 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-14 21:04:36,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-14 21:04:36,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:04:36,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-14 21:04:36,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2024-10-14 21:04:36,449 INFO L87 Difference]: Start difference. First operand 207 states and 208 transitions. Second operand has 16 states, 15 states have (on average 15.933333333333334) internal successors, (239), 16 states have internal predecessors, (239), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-14 21:04:37,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:04:37,492 INFO L93 Difference]: Finished difference Result 362 states and 388 transitions. [2024-10-14 21:04:37,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-14 21:04:37,493 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 15.933333333333334) internal successors, (239), 16 states have internal predecessors, (239), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 133 [2024-10-14 21:04:37,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:04:37,494 INFO L225 Difference]: With dead ends: 362 [2024-10-14 21:04:37,494 INFO L226 Difference]: Without dead ends: 359 [2024-10-14 21:04:37,494 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=307, Unknown=0, NotChecked=0, Total=462 [2024-10-14 21:04:37,495 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 319 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 1162 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 1184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-14 21:04:37,495 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 309 Invalid, 1184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1162 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-14 21:04:37,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2024-10-14 21:04:37,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 326. [2024-10-14 21:04:37,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 303 states have (on average 1.0693069306930694) internal successors, (324), 311 states have internal predecessors, (324), 9 states have call successors, (9), 5 states have call predecessors, (9), 5 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-14 21:04:37,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 342 transitions. [2024-10-14 21:04:37,514 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 342 transitions. Word has length 133 [2024-10-14 21:04:37,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:04:37,514 INFO L471 AbstractCegarLoop]: Abstraction has 326 states and 342 transitions. [2024-10-14 21:04:37,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 15.933333333333334) internal successors, (239), 16 states have internal predecessors, (239), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-14 21:04:37,514 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 342 transitions. [2024-10-14 21:04:37,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-10-14 21:04:37,515 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:04:37,516 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1] [2024-10-14 21:04:37,532 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-10-14 21:04:37,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:04:37,716 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2024-10-14 21:04:37,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:04:37,717 INFO L85 PathProgramCache]: Analyzing trace with hash -176987193, now seen corresponding path program 1 times [2024-10-14 21:04:37,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:04:37,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752395125] [2024-10-14 21:04:37,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:04:37,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:04:37,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 21:04:37,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1356450583] [2024-10-14 21:04:37,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:04:37,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:04:37,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 21:04:37,743 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 21:04:37,746 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-10-14 21:04:37,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:04:37,799 INFO L255 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-14 21:04:37,801 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 21:04:37,921 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 21:04:37,921 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 21:04:38,211 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 21:04:38,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:04:38,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752395125] [2024-10-14 21:04:38,212 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 21:04:38,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1356450583] [2024-10-14 21:04:38,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1356450583] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 21:04:38,212 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-14 21:04:38,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-10-14 21:04:38,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250047482] [2024-10-14 21:04:38,212 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-14 21:04:38,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 21:04:38,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:04:38,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 21:04:38,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-10-14 21:04:38,213 INFO L87 Difference]: Start difference. First operand 326 states and 342 transitions. Second operand has 10 states, 9 states have (on average 27.88888888888889) internal successors, (251), 10 states have internal predecessors, (251), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-14 21:04:42,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-14 21:04:46,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-14 21:04:48,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-14 21:04:52,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-14 21:04:56,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-14 21:05:00,895 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-14 21:05:04,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-14 21:05:08,937 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-14 21:05:12,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-14 21:05:16,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-14 21:05:20,981 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-14 21:05:24,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-14 21:05:29,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []