./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/hard-u_unwindbound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound20.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 28cfabe4b70eff8f7baaccb87c67f08c79dbf056ceeb2a0d56109f4b60f10f62 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 20:23:23,404 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 20:23:23,481 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-24 20:23:23,485 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 20:23:23,486 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 20:23:23,514 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 20:23:23,515 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 20:23:23,515 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 20:23:23,516 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 20:23:23,517 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 20:23:23,518 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 20:23:23,518 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 20:23:23,519 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 20:23:23,520 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 20:23:23,521 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 20:23:23,521 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 20:23:23,521 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 20:23:23,522 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 20:23:23,522 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 20:23:23,522 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 20:23:23,525 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 20:23:23,526 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 20:23:23,526 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 20:23:23,526 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 20:23:23,527 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 20:23:23,527 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-24 20:23:23,527 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 20:23:23,528 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 20:23:23,528 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 20:23:23,528 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 20:23:23,529 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 20:23:23,529 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 20:23:23,529 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 20:23:23,529 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 20:23:23,529 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 20:23:23,530 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 20:23:23,530 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 20:23:23,530 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 20:23:23,531 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 20:23:23,531 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 20:23:23,531 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 20:23:23,532 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 20:23:23,532 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 20:23:23,532 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 20:23:23,532 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 28cfabe4b70eff8f7baaccb87c67f08c79dbf056ceeb2a0d56109f4b60f10f62 [2024-10-24 20:23:23,794 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 20:23:23,816 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 20:23:23,820 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 20:23:23,821 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 20:23:23,821 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 20:23:23,822 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound20.c [2024-10-24 20:23:25,230 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 20:23:25,384 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 20:23:25,384 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound20.c [2024-10-24 20:23:25,391 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0a17815e/40fda1d93d6a47c0ba7b0a08710c597e/FLAG95418f9ef [2024-10-24 20:23:25,789 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0a17815e/40fda1d93d6a47c0ba7b0a08710c597e [2024-10-24 20:23:25,791 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 20:23:25,793 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 20:23:25,797 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 20:23:25,797 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 20:23:25,803 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 20:23:25,803 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 08:23:25" (1/1) ... [2024-10-24 20:23:25,804 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7aa6a2e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:23:25, skipping insertion in model container [2024-10-24 20:23:25,804 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 08:23:25" (1/1) ... [2024-10-24 20:23:25,822 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 20:23:26,001 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 20:23:26,008 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 20:23:26,024 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 20:23:26,038 INFO L204 MainTranslator]: Completed translation [2024-10-24 20:23:26,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:23:26 WrapperNode [2024-10-24 20:23:26,038 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 20:23:26,039 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 20:23:26,040 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 20:23:26,040 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 20:23:26,046 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:23:26" (1/1) ... [2024-10-24 20:23:26,053 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:23:26" (1/1) ... [2024-10-24 20:23:26,070 INFO L138 Inliner]: procedures = 14, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 76 [2024-10-24 20:23:26,070 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 20:23:26,071 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 20:23:26,071 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 20:23:26,071 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 20:23:26,081 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:23:26" (1/1) ... [2024-10-24 20:23:26,081 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:23:26" (1/1) ... [2024-10-24 20:23:26,083 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:23:26" (1/1) ... [2024-10-24 20:23:26,099 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-24 20:23:26,099 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:23:26" (1/1) ... [2024-10-24 20:23:26,099 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:23:26" (1/1) ... [2024-10-24 20:23:26,102 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:23:26" (1/1) ... [2024-10-24 20:23:26,105 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:23:26" (1/1) ... [2024-10-24 20:23:26,105 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:23:26" (1/1) ... [2024-10-24 20:23:26,106 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:23:26" (1/1) ... [2024-10-24 20:23:26,108 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 20:23:26,109 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 20:23:26,109 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 20:23:26,109 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 20:23:26,110 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:23:26" (1/1) ... [2024-10-24 20:23:26,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 20:23:26,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:23:26,143 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 20:23:26,149 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 20:23:26,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 20:23:26,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 20:23:26,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 20:23:26,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 20:23:26,201 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-24 20:23:26,201 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-24 20:23:26,267 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 20:23:26,269 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 20:23:26,477 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-10-24 20:23:26,477 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 20:23:26,511 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 20:23:26,513 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-24 20:23:26,514 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:23:26 BoogieIcfgContainer [2024-10-24 20:23:26,514 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 20:23:26,516 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 20:23:26,517 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 20:23:26,520 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 20:23:26,521 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 08:23:25" (1/3) ... [2024-10-24 20:23:26,522 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a99741f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 08:23:26, skipping insertion in model container [2024-10-24 20:23:26,523 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:23:26" (2/3) ... [2024-10-24 20:23:26,523 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a99741f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 08:23:26, skipping insertion in model container [2024-10-24 20:23:26,524 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:23:26" (3/3) ... [2024-10-24 20:23:26,525 INFO L112 eAbstractionObserver]: Analyzing ICFG hard-u_unwindbound20.c [2024-10-24 20:23:26,540 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 20:23:26,540 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-10-24 20:23:26,592 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 20:23:26,613 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;@770bee26, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 20:23:26,620 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-24 20:23:26,628 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 22 states have internal predecessors, (31), 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) [2024-10-24 20:23:26,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-24 20:23:26,636 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:23:26,636 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-10-24 20:23:26,637 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-24 20:23:26,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:23:26,643 INFO L85 PathProgramCache]: Analyzing trace with hash 118368741, now seen corresponding path program 1 times [2024-10-24 20:23:26,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:23:26,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113493725] [2024-10-24 20:23:26,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:26,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:23:26,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:26,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 20:23:26,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:23:26,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113493725] [2024-10-24 20:23:26,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113493725] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:23:26,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:23:26,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 20:23:26,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913304437] [2024-10-24 20:23:26,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:23:26,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 20:23:26,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:23:26,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 20:23:26,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 20:23:26,813 INFO L87 Difference]: Start difference. First operand has 31 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 22 states have internal predecessors, (31), 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) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 20:23:26,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:23:26,840 INFO L93 Difference]: Finished difference Result 60 states and 94 transitions. [2024-10-24 20:23:26,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 20:23:26,842 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-10-24 20:23:26,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:23:26,847 INFO L225 Difference]: With dead ends: 60 [2024-10-24 20:23:26,847 INFO L226 Difference]: Without dead ends: 27 [2024-10-24 20:23:26,849 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 20:23:26,852 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 20:23:26,852 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 39 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 20:23:26,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-10-24 20:23:26,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-10-24 20:23:26,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 17 states have (on average 1.411764705882353) internal successors, (24), 20 states have internal predecessors, (24), 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) [2024-10-24 20:23:26,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 34 transitions. [2024-10-24 20:23:26,884 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 34 transitions. Word has length 5 [2024-10-24 20:23:26,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:23:26,885 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 34 transitions. [2024-10-24 20:23:26,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 20:23:26,885 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2024-10-24 20:23:26,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-24 20:23:26,885 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:23:26,886 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-10-24 20:23:26,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 20:23:26,886 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-24 20:23:26,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:23:26,887 INFO L85 PathProgramCache]: Analyzing trace with hash 118428323, now seen corresponding path program 1 times [2024-10-24 20:23:26,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:23:26,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273898459] [2024-10-24 20:23:26,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:26,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:23:26,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:26,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 20:23:26,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:23:26,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273898459] [2024-10-24 20:23:26,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273898459] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:23:26,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:23:26,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 20:23:26,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810683885] [2024-10-24 20:23:26,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:23:26,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 20:23:26,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:23:26,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 20:23:26,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 20:23:26,975 INFO L87 Difference]: Start difference. First operand 27 states and 34 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 20:23:27,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:23:27,030 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2024-10-24 20:23:27,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 20:23:27,031 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-10-24 20:23:27,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:23:27,032 INFO L225 Difference]: With dead ends: 47 [2024-10-24 20:23:27,032 INFO L226 Difference]: Without dead ends: 31 [2024-10-24 20:23:27,033 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 [2024-10-24 20:23:27,036 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 4 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 20:23:27,037 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 81 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 20:23:27,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-10-24 20:23:27,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2024-10-24 20:23:27,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 24 states have internal predecessors, (28), 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) [2024-10-24 20:23:27,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2024-10-24 20:23:27,044 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 5 [2024-10-24 20:23:27,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:23:27,044 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2024-10-24 20:23:27,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 20:23:27,045 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2024-10-24 20:23:27,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-10-24 20:23:27,045 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:23:27,046 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:23:27,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 20:23:27,046 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-24 20:23:27,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:23:27,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1994096058, now seen corresponding path program 1 times [2024-10-24 20:23:27,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:23:27,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465171788] [2024-10-24 20:23:27,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:27,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:23:27,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:27,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 20:23:27,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:27,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 20:23:27,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:27,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 20:23:27,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:27,347 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 20:23:27,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:23:27,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465171788] [2024-10-24 20:23:27,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465171788] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:23:27,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:23:27,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 20:23:27,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074333819] [2024-10-24 20:23:27,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:23:27,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 20:23:27,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:23:27,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 20:23:27,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-24 20:23:27,355 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. Second operand has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 20:23:27,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:23:27,488 INFO L93 Difference]: Finished difference Result 54 states and 67 transitions. [2024-10-24 20:23:27,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 20:23:27,489 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2024-10-24 20:23:27,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:23:27,491 INFO L225 Difference]: With dead ends: 54 [2024-10-24 20:23:27,491 INFO L226 Difference]: Without dead ends: 53 [2024-10-24 20:23:27,492 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-24 20:23:27,493 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 26 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:23:27,494 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 113 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:23:27,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-10-24 20:23:27,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 47. [2024-10-24 20:23:27,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 34 states have internal predecessors, (41), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-24 20:23:27,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 61 transitions. [2024-10-24 20:23:27,511 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 61 transitions. Word has length 25 [2024-10-24 20:23:27,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:23:27,511 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 61 transitions. [2024-10-24 20:23:27,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 20:23:27,511 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 61 transitions. [2024-10-24 20:23:27,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-10-24 20:23:27,513 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:23:27,513 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:23:27,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 20:23:27,514 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-24 20:23:27,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:23:27,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1994094904, now seen corresponding path program 1 times [2024-10-24 20:23:27,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:23:27,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349236161] [2024-10-24 20:23:27,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:27,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:23:27,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:27,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 20:23:27,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:27,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 20:23:27,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:27,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 20:23:27,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:27,680 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 20:23:27,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:23:27,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349236161] [2024-10-24 20:23:27,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349236161] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:23:27,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [888983219] [2024-10-24 20:23:27,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:27,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:23:27,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:23:27,683 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:23:27,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 20:23:27,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:27,741 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 20:23:27,746 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:23:27,870 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 20:23:27,871 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 20:23:27,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [888983219] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:23:27,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:23:27,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-10-24 20:23:27,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352698341] [2024-10-24 20:23:27,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:23:27,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 20:23:27,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:23:27,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 20:23:27,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-10-24 20:23:27,876 INFO L87 Difference]: Start difference. First operand 47 states and 61 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 20:23:27,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:23:27,946 INFO L93 Difference]: Finished difference Result 63 states and 76 transitions. [2024-10-24 20:23:27,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 20:23:27,946 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2024-10-24 20:23:27,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:23:27,947 INFO L225 Difference]: With dead ends: 63 [2024-10-24 20:23:27,948 INFO L226 Difference]: Without dead ends: 62 [2024-10-24 20:23:27,949 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2024-10-24 20:23:27,950 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 14 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 20:23:27,953 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 80 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 20:23:27,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-10-24 20:23:27,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 54. [2024-10-24 20:23:27,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 37 states have (on average 1.2432432432432432) internal successors, (46), 39 states have internal predecessors, (46), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-24 20:23:27,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 66 transitions. [2024-10-24 20:23:27,969 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 66 transitions. Word has length 25 [2024-10-24 20:23:27,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:23:27,970 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 66 transitions. [2024-10-24 20:23:27,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 20:23:27,970 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 66 transitions. [2024-10-24 20:23:27,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-10-24 20:23:27,972 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:23:27,972 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:23:27,989 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-24 20:23:28,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:23:28,177 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-24 20:23:28,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:23:28,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1687435582, now seen corresponding path program 1 times [2024-10-24 20:23:28,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:23:28,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447810583] [2024-10-24 20:23:28,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:28,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:23:28,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:28,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 20:23:28,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:28,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 20:23:28,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:28,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 20:23:28,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:28,298 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 20:23:28,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:23:28,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447810583] [2024-10-24 20:23:28,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447810583] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:23:28,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:23:28,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 20:23:28,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798231459] [2024-10-24 20:23:28,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:23:28,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 20:23:28,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:23:28,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 20:23:28,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-24 20:23:28,303 INFO L87 Difference]: Start difference. First operand 54 states and 66 transitions. Second operand has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 20:23:28,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:23:28,405 INFO L93 Difference]: Finished difference Result 63 states and 75 transitions. [2024-10-24 20:23:28,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 20:23:28,405 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 26 [2024-10-24 20:23:28,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:23:28,406 INFO L225 Difference]: With dead ends: 63 [2024-10-24 20:23:28,407 INFO L226 Difference]: Without dead ends: 62 [2024-10-24 20:23:28,407 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-10-24 20:23:28,409 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 16 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:23:28,410 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 110 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:23:28,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-10-24 20:23:28,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 57. [2024-10-24 20:23:28,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 40 states have (on average 1.225) internal successors, (49), 42 states have internal predecessors, (49), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-24 20:23:28,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 69 transitions. [2024-10-24 20:23:28,424 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 69 transitions. Word has length 26 [2024-10-24 20:23:28,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:23:28,425 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 69 transitions. [2024-10-24 20:23:28,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 20:23:28,425 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 69 transitions. [2024-10-24 20:23:28,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-10-24 20:23:28,426 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:23:28,426 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:23:28,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 20:23:28,428 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-24 20:23:28,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:23:28,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1687399832, now seen corresponding path program 1 times [2024-10-24 20:23:28,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:23:28,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103025610] [2024-10-24 20:23:28,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:28,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:23:28,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:28,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 20:23:28,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:28,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 20:23:28,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:28,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 20:23:28,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:28,540 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 20:23:28,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:23:28,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103025610] [2024-10-24 20:23:28,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103025610] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:23:28,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [865675381] [2024-10-24 20:23:28,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:28,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:23:28,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:23:28,545 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:23:28,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 20:23:28,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:28,598 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 20:23:28,599 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:23:28,668 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 20:23:28,668 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:23:28,749 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 20:23:28,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [865675381] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:23:28,751 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:23:28,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 5] total 12 [2024-10-24 20:23:28,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739813775] [2024-10-24 20:23:28,751 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:23:28,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 20:23:28,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:23:28,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 20:23:28,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2024-10-24 20:23:28,753 INFO L87 Difference]: Start difference. First operand 57 states and 69 transitions. Second operand has 13 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 13 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-10-24 20:23:28,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:23:28,911 INFO L93 Difference]: Finished difference Result 109 states and 133 transitions. [2024-10-24 20:23:28,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 20:23:28,912 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 13 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 26 [2024-10-24 20:23:28,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:23:28,913 INFO L225 Difference]: With dead ends: 109 [2024-10-24 20:23:28,913 INFO L226 Difference]: Without dead ends: 94 [2024-10-24 20:23:28,914 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2024-10-24 20:23:28,915 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 66 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:23:28,915 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 161 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:23:28,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-10-24 20:23:28,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 84. [2024-10-24 20:23:28,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 59 states have (on average 1.2033898305084745) internal successors, (71), 61 states have internal predecessors, (71), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-24 20:23:28,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 103 transitions. [2024-10-24 20:23:28,927 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 103 transitions. Word has length 26 [2024-10-24 20:23:28,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:23:28,928 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 103 transitions. [2024-10-24 20:23:28,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 13 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-10-24 20:23:28,928 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 103 transitions. [2024-10-24 20:23:28,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-10-24 20:23:28,929 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:23:28,929 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2024-10-24 20:23:28,946 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-24 20:23:29,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-10-24 20:23:29,131 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-24 20:23:29,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:23:29,131 INFO L85 PathProgramCache]: Analyzing trace with hash -339875692, now seen corresponding path program 1 times [2024-10-24 20:23:29,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:23:29,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708495509] [2024-10-24 20:23:29,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:29,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:23:29,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:29,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 20:23:29,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:29,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 20:23:29,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:29,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 20:23:29,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:29,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-24 20:23:29,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:29,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 20:23:29,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:29,290 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-24 20:23:29,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:23:29,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708495509] [2024-10-24 20:23:29,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708495509] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:23:29,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1065104083] [2024-10-24 20:23:29,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:29,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:23:29,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:23:29,293 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:23:29,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-24 20:23:29,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:29,349 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-24 20:23:29,351 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:23:29,430 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-24 20:23:29,430 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:23:29,551 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-24 20:23:29,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1065104083] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:23:29,552 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:23:29,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 7] total 16 [2024-10-24 20:23:29,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952988522] [2024-10-24 20:23:29,552 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:23:29,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-24 20:23:29,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:23:29,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-24 20:23:29,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2024-10-24 20:23:29,554 INFO L87 Difference]: Start difference. First operand 84 states and 103 transitions. Second operand has 17 states, 16 states have (on average 3.125) internal successors, (50), 17 states have internal predecessors, (50), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2024-10-24 20:23:29,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:23:29,860 INFO L93 Difference]: Finished difference Result 138 states and 169 transitions. [2024-10-24 20:23:29,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-24 20:23:29,861 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.125) internal successors, (50), 17 states have internal predecessors, (50), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 42 [2024-10-24 20:23:29,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:23:29,862 INFO L225 Difference]: With dead ends: 138 [2024-10-24 20:23:29,862 INFO L226 Difference]: Without dead ends: 137 [2024-10-24 20:23:29,863 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=188, Invalid=568, Unknown=0, NotChecked=0, Total=756 [2024-10-24 20:23:29,863 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 55 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 20:23:29,864 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 201 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 20:23:29,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-10-24 20:23:29,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 135. [2024-10-24 20:23:29,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 98 states have (on average 1.183673469387755) internal successors, (116), 100 states have internal predecessors, (116), 24 states have call successors, (24), 10 states have call predecessors, (24), 10 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-10-24 20:23:29,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 164 transitions. [2024-10-24 20:23:29,887 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 164 transitions. Word has length 42 [2024-10-24 20:23:29,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:23:29,888 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 164 transitions. [2024-10-24 20:23:29,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.125) internal successors, (50), 17 states have internal predecessors, (50), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2024-10-24 20:23:29,891 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 164 transitions. [2024-10-24 20:23:29,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-10-24 20:23:29,892 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:23:29,892 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:23:29,906 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-24 20:23:30,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:23:30,093 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-24 20:23:30,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:23:30,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1343451627, now seen corresponding path program 1 times [2024-10-24 20:23:30,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:23:30,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331909673] [2024-10-24 20:23:30,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:30,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:23:30,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:30,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 20:23:30,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:30,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 20:23:30,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:30,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 20:23:30,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:30,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-24 20:23:30,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:30,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 20:23:30,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:30,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 20:23:30,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:30,267 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-24 20:23:30,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:23:30,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331909673] [2024-10-24 20:23:30,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331909673] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:23:30,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1714155826] [2024-10-24 20:23:30,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:30,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:23:30,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:23:30,270 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:23:30,272 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-24 20:23:30,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:30,320 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-24 20:23:30,321 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:23:30,413 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-24 20:23:30,413 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 20:23:30,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1714155826] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:23:30,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:23:30,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 10 [2024-10-24 20:23:30,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499217642] [2024-10-24 20:23:30,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:23:30,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 20:23:30,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:23:30,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 20:23:30,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-10-24 20:23:30,416 INFO L87 Difference]: Start difference. First operand 135 states and 164 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-24 20:23:30,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:23:30,529 INFO L93 Difference]: Finished difference Result 136 states and 164 transitions. [2024-10-24 20:23:30,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 20:23:30,529 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 45 [2024-10-24 20:23:30,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:23:30,530 INFO L225 Difference]: With dead ends: 136 [2024-10-24 20:23:30,531 INFO L226 Difference]: Without dead ends: 135 [2024-10-24 20:23:30,531 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2024-10-24 20:23:30,532 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 44 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:23:30,532 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 182 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:23:30,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2024-10-24 20:23:30,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 107. [2024-10-24 20:23:30,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 77 states have (on average 1.155844155844156) internal successors, (89), 78 states have internal predecessors, (89), 20 states have call successors, (20), 8 states have call predecessors, (20), 8 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-24 20:23:30,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 129 transitions. [2024-10-24 20:23:30,547 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 129 transitions. Word has length 45 [2024-10-24 20:23:30,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:23:30,550 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 129 transitions. [2024-10-24 20:23:30,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-24 20:23:30,551 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 129 transitions. [2024-10-24 20:23:30,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-10-24 20:23:30,552 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:23:30,552 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:23:30,571 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-24 20:23:30,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:23:30,752 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-24 20:23:30,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:23:30,753 INFO L85 PathProgramCache]: Analyzing trace with hash -597482282, now seen corresponding path program 1 times [2024-10-24 20:23:30,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:23:30,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105461716] [2024-10-24 20:23:30,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:30,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:23:30,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:30,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 20:23:30,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:30,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 20:23:30,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:30,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 20:23:30,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:30,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-24 20:23:30,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:30,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 20:23:30,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:30,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 20:23:30,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:30,895 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-24 20:23:30,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:23:30,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105461716] [2024-10-24 20:23:30,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105461716] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:23:30,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1174515537] [2024-10-24 20:23:30,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:30,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:23:30,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:23:30,898 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:23:30,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-24 20:23:30,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:30,950 INFO L255 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-24 20:23:30,951 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:23:31,030 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-24 20:23:31,031 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:23:31,141 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-24 20:23:31,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1174515537] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:23:31,142 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:23:31,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 8] total 17 [2024-10-24 20:23:31,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888815849] [2024-10-24 20:23:31,143 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:23:31,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-24 20:23:31,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:23:31,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-24 20:23:31,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2024-10-24 20:23:31,144 INFO L87 Difference]: Start difference. First operand 107 states and 129 transitions. Second operand has 17 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 17 states have internal predecessors, (53), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-24 20:23:31,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:23:31,375 INFO L93 Difference]: Finished difference Result 161 states and 195 transitions. [2024-10-24 20:23:31,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-24 20:23:31,375 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 17 states have internal predecessors, (53), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 50 [2024-10-24 20:23:31,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:23:31,377 INFO L225 Difference]: With dead ends: 161 [2024-10-24 20:23:31,377 INFO L226 Difference]: Without dead ends: 147 [2024-10-24 20:23:31,378 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=228, Invalid=474, Unknown=0, NotChecked=0, Total=702 [2024-10-24 20:23:31,378 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 78 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:23:31,378 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 196 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:23:31,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-10-24 20:23:31,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 132. [2024-10-24 20:23:31,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 94 states have (on average 1.1382978723404256) internal successors, (107), 95 states have internal predecessors, (107), 26 states have call successors, (26), 10 states have call predecessors, (26), 10 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-24 20:23:31,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 159 transitions. [2024-10-24 20:23:31,392 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 159 transitions. Word has length 50 [2024-10-24 20:23:31,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:23:31,392 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 159 transitions. [2024-10-24 20:23:31,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 17 states have internal predecessors, (53), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-24 20:23:31,393 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 159 transitions. [2024-10-24 20:23:31,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-24 20:23:31,394 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:23:31,394 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:23:31,421 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-24 20:23:31,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:23:31,599 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-24 20:23:31,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:23:31,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1181186760, now seen corresponding path program 1 times [2024-10-24 20:23:31,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:23:31,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113123444] [2024-10-24 20:23:31,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:31,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:23:31,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:31,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 20:23:31,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:31,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 20:23:31,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:31,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 20:23:31,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:31,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-24 20:23:31,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:31,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 20:23:31,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:31,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 20:23:31,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:31,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 20:23:31,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:31,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 20:23:31,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:31,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 20:23:31,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:31,823 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-10-24 20:23:31,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:23:31,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113123444] [2024-10-24 20:23:31,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113123444] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:23:31,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1646645727] [2024-10-24 20:23:31,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:31,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:23:31,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:23:31,826 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:23:31,827 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-24 20:23:31,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:31,882 INFO L255 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-24 20:23:31,884 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:23:31,988 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-24 20:23:31,989 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:23:32,160 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-10-24 20:23:32,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1646645727] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:23:32,161 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:23:32,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 9] total 20 [2024-10-24 20:23:32,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176696340] [2024-10-24 20:23:32,161 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:23:32,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-10-24 20:23:32,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:23:32,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-10-24 20:23:32,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-10-24 20:23:32,163 INFO L87 Difference]: Start difference. First operand 132 states and 159 transitions. Second operand has 21 states, 20 states have (on average 3.05) internal successors, (61), 21 states have internal predecessors, (61), 6 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 6 states have call predecessors, (27), 6 states have call successors, (27) [2024-10-24 20:23:32,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:23:32,560 INFO L93 Difference]: Finished difference Result 184 states and 222 transitions. [2024-10-24 20:23:32,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-10-24 20:23:32,561 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.05) internal successors, (61), 21 states have internal predecessors, (61), 6 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 6 states have call predecessors, (27), 6 states have call successors, (27) Word has length 66 [2024-10-24 20:23:32,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:23:32,562 INFO L225 Difference]: With dead ends: 184 [2024-10-24 20:23:32,562 INFO L226 Difference]: Without dead ends: 183 [2024-10-24 20:23:32,563 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 386 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=373, Invalid=1187, Unknown=0, NotChecked=0, Total=1560 [2024-10-24 20:23:32,564 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 112 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 20:23:32,564 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 265 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 20:23:32,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-10-24 20:23:32,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 140. [2024-10-24 20:23:32,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 98 states have (on average 1.1428571428571428) internal successors, (112), 99 states have internal predecessors, (112), 29 states have call successors, (29), 11 states have call predecessors, (29), 11 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2024-10-24 20:23:32,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 170 transitions. [2024-10-24 20:23:32,578 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 170 transitions. Word has length 66 [2024-10-24 20:23:32,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:23:32,579 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 170 transitions. [2024-10-24 20:23:32,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.05) internal successors, (61), 21 states have internal predecessors, (61), 6 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 6 states have call predecessors, (27), 6 states have call successors, (27) [2024-10-24 20:23:32,579 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 170 transitions. [2024-10-24 20:23:32,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-24 20:23:32,580 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:23:32,580 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-10-24 20:23:32,597 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-24 20:23:32,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:23:32,781 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-24 20:23:32,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:23:32,782 INFO L85 PathProgramCache]: Analyzing trace with hash -982876319, now seen corresponding path program 1 times [2024-10-24 20:23:32,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:23:32,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126862008] [2024-10-24 20:23:32,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:32,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:23:32,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:32,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 20:23:32,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:33,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 20:23:33,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:33,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 20:23:33,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:33,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-24 20:23:33,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:33,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 20:23:33,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:33,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 20:23:33,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:33,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 20:23:33,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:33,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 20:23:33,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:33,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-24 20:23:33,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:33,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 20:23:33,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:33,044 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-10-24 20:23:33,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:23:33,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126862008] [2024-10-24 20:23:33,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126862008] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:23:33,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [456016454] [2024-10-24 20:23:33,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:33,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:23:33,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:23:33,046 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:23:33,048 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-24 20:23:33,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:33,110 INFO L255 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-24 20:23:33,113 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:23:33,245 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 0 proven. 170 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-24 20:23:33,245 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:23:33,443 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-10-24 20:23:33,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [456016454] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:23:33,444 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:23:33,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 11] total 24 [2024-10-24 20:23:33,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596898638] [2024-10-24 20:23:33,444 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:23:33,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-10-24 20:23:33,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:23:33,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-10-24 20:23:33,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2024-10-24 20:23:33,446 INFO L87 Difference]: Start difference. First operand 140 states and 170 transitions. Second operand has 25 states, 24 states have (on average 3.25) internal successors, (78), 25 states have internal predecessors, (78), 8 states have call successors, (30), 5 states have call predecessors, (30), 5 states have return successors, (30), 8 states have call predecessors, (30), 8 states have call successors, (30) [2024-10-24 20:23:33,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:23:33,874 INFO L93 Difference]: Finished difference Result 225 states and 270 transitions. [2024-10-24 20:23:33,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-10-24 20:23:33,875 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.25) internal successors, (78), 25 states have internal predecessors, (78), 8 states have call successors, (30), 5 states have call predecessors, (30), 5 states have return successors, (30), 8 states have call predecessors, (30), 8 states have call successors, (30) Word has length 78 [2024-10-24 20:23:33,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:23:33,876 INFO L225 Difference]: With dead ends: 225 [2024-10-24 20:23:33,877 INFO L226 Difference]: Without dead ends: 224 [2024-10-24 20:23:33,878 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 508 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=485, Invalid=1585, Unknown=0, NotChecked=0, Total=2070 [2024-10-24 20:23:33,878 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 129 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 20:23:33,879 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 180 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 20:23:33,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2024-10-24 20:23:33,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 164. [2024-10-24 20:23:33,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 116 states have (on average 1.1379310344827587) internal successors, (132), 117 states have internal predecessors, (132), 33 states have call successors, (33), 13 states have call predecessors, (33), 13 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-10-24 20:23:33,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 198 transitions. [2024-10-24 20:23:33,899 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 198 transitions. Word has length 78 [2024-10-24 20:23:33,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:23:33,899 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 198 transitions. [2024-10-24 20:23:33,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.25) internal successors, (78), 25 states have internal predecessors, (78), 8 states have call successors, (30), 5 states have call predecessors, (30), 5 states have return successors, (30), 8 states have call predecessors, (30), 8 states have call successors, (30) [2024-10-24 20:23:33,899 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 198 transitions. [2024-10-24 20:23:33,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-24 20:23:33,901 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:23:33,901 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1] [2024-10-24 20:23:33,921 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-24 20:23:34,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:23:34,109 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-24 20:23:34,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:23:34,109 INFO L85 PathProgramCache]: Analyzing trace with hash 2071083694, now seen corresponding path program 2 times [2024-10-24 20:23:34,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:23:34,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348233012] [2024-10-24 20:23:34,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:34,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:23:34,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:34,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 20:23:34,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:34,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 20:23:34,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:34,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 20:23:34,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:34,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-24 20:23:34,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:34,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 20:23:34,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:34,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 20:23:34,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:34,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 20:23:34,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:34,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 20:23:34,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:34,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 20:23:34,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:34,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 20:23:34,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:34,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-24 20:23:34,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:34,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-24 20:23:34,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:34,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 20:23:34,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:34,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-24 20:23:34,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:34,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 20:23:34,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:34,518 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-10-24 20:23:34,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:23:34,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348233012] [2024-10-24 20:23:34,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348233012] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:23:34,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1273184046] [2024-10-24 20:23:34,518 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 20:23:34,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:23:34,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:23:34,520 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:23:34,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-24 20:23:34,594 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 20:23:34,594 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 20:23:34,598 INFO L255 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-24 20:23:34,603 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:23:34,767 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 0 proven. 429 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-10-24 20:23:34,767 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:23:35,097 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-10-24 20:23:35,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1273184046] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:23:35,097 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:23:35,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14, 15] total 32 [2024-10-24 20:23:35,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600404028] [2024-10-24 20:23:35,098 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:23:35,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-10-24 20:23:35,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:23:35,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-10-24 20:23:35,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=237, Invalid=819, Unknown=0, NotChecked=0, Total=1056 [2024-10-24 20:23:35,100 INFO L87 Difference]: Start difference. First operand 164 states and 198 transitions. Second operand has 33 states, 32 states have (on average 3.3125) internal successors, (106), 33 states have internal predecessors, (106), 12 states have call successors, (45), 7 states have call predecessors, (45), 7 states have return successors, (45), 12 states have call predecessors, (45), 12 states have call successors, (45) [2024-10-24 20:23:35,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:23:35,844 INFO L93 Difference]: Finished difference Result 292 states and 348 transitions. [2024-10-24 20:23:35,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-10-24 20:23:35,845 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 3.3125) internal successors, (106), 33 states have internal predecessors, (106), 12 states have call successors, (45), 7 states have call predecessors, (45), 7 states have return successors, (45), 12 states have call predecessors, (45), 12 states have call successors, (45) Word has length 114 [2024-10-24 20:23:35,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:23:35,846 INFO L225 Difference]: With dead ends: 292 [2024-10-24 20:23:35,848 INFO L226 Difference]: Without dead ends: 291 [2024-10-24 20:23:35,850 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1044 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=922, Invalid=3110, Unknown=0, NotChecked=0, Total=4032 [2024-10-24 20:23:35,850 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 165 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 20:23:35,851 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 346 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 20:23:35,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2024-10-24 20:23:35,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 188. [2024-10-24 20:23:35,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 134 states have (on average 1.1343283582089552) internal successors, (152), 135 states have internal predecessors, (152), 37 states have call successors, (37), 15 states have call predecessors, (37), 15 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-10-24 20:23:35,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 226 transitions. [2024-10-24 20:23:35,870 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 226 transitions. Word has length 114 [2024-10-24 20:23:35,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:23:35,870 INFO L471 AbstractCegarLoop]: Abstraction has 188 states and 226 transitions. [2024-10-24 20:23:35,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 3.3125) internal successors, (106), 33 states have internal predecessors, (106), 12 states have call successors, (45), 7 states have call predecessors, (45), 7 states have return successors, (45), 12 states have call predecessors, (45), 12 states have call successors, (45) [2024-10-24 20:23:35,871 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 226 transitions. [2024-10-24 20:23:35,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-10-24 20:23:35,872 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:23:35,876 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1] [2024-10-24 20:23:35,893 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-24 20:23:36,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-10-24 20:23:36,080 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-24 20:23:36,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:23:36,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1254225999, now seen corresponding path program 2 times [2024-10-24 20:23:36,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:23:36,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579917647] [2024-10-24 20:23:36,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:36,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:23:36,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:36,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 20:23:36,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:36,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 20:23:36,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:36,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 20:23:36,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:36,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-24 20:23:36,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:36,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 20:23:36,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:36,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 20:23:36,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:36,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 20:23:36,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:36,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 20:23:36,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:36,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 20:23:36,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:36,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 20:23:36,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:36,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-24 20:23:36,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:36,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 20:23:36,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:36,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 20:23:36,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:36,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 20:23:36,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:36,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-24 20:23:36,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:36,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 20:23:36,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:36,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 20:23:36,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:36,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 20:23:36,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:36,454 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 0 proven. 138 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 20:23:36,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:23:36,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579917647] [2024-10-24 20:23:36,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579917647] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:23:36,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [516575587] [2024-10-24 20:23:36,455 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 20:23:36,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:23:36,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:23:36,457 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:23:36,458 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-24 20:23:36,529 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 20:23:36,529 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 20:23:36,534 INFO L255 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-24 20:23:36,536 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:23:36,708 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 0 proven. 678 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-10-24 20:23:36,709 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:23:37,045 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 0 proven. 138 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 20:23:37,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [516575587] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:23:37,046 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:23:37,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14, 15] total 32 [2024-10-24 20:23:37,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531944866] [2024-10-24 20:23:37,046 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:23:37,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-10-24 20:23:37,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:23:37,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-10-24 20:23:37,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=301, Invalid=755, Unknown=0, NotChecked=0, Total=1056 [2024-10-24 20:23:37,048 INFO L87 Difference]: Start difference. First operand 188 states and 226 transitions. Second operand has 33 states, 32 states have (on average 3.125) internal successors, (100), 33 states have internal predecessors, (100), 12 states have call successors, (54), 7 states have call predecessors, (54), 7 states have return successors, (54), 12 states have call predecessors, (54), 12 states have call successors, (54) [2024-10-24 20:23:37,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:23:37,702 INFO L93 Difference]: Finished difference Result 332 states and 407 transitions. [2024-10-24 20:23:37,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-10-24 20:23:37,703 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 3.125) internal successors, (100), 33 states have internal predecessors, (100), 12 states have call successors, (54), 7 states have call predecessors, (54), 7 states have return successors, (54), 12 states have call predecessors, (54), 12 states have call successors, (54) Word has length 126 [2024-10-24 20:23:37,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:23:37,705 INFO L225 Difference]: With dead ends: 332 [2024-10-24 20:23:37,705 INFO L226 Difference]: Without dead ends: 318 [2024-10-24 20:23:37,709 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 815 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=1084, Invalid=2338, Unknown=0, NotChecked=0, Total=3422 [2024-10-24 20:23:37,709 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 259 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 20:23:37,710 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 275 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 20:23:37,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2024-10-24 20:23:37,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 275. [2024-10-24 20:23:37,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 193 states have (on average 1.160621761658031) internal successors, (224), 194 states have internal predecessors, (224), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-10-24 20:23:37,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 340 transitions. [2024-10-24 20:23:37,732 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 340 transitions. Word has length 126 [2024-10-24 20:23:37,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:23:37,733 INFO L471 AbstractCegarLoop]: Abstraction has 275 states and 340 transitions. [2024-10-24 20:23:37,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 3.125) internal successors, (100), 33 states have internal predecessors, (100), 12 states have call successors, (54), 7 states have call predecessors, (54), 7 states have return successors, (54), 12 states have call predecessors, (54), 12 states have call successors, (54) [2024-10-24 20:23:37,733 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 340 transitions. [2024-10-24 20:23:37,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-10-24 20:23:37,735 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:23:37,735 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:23:37,753 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-10-24 20:23:37,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-24 20:23:37,940 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-24 20:23:37,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:23:37,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1500608548, now seen corresponding path program 2 times [2024-10-24 20:23:37,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:23:37,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306226905] [2024-10-24 20:23:37,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:37,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:23:37,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:38,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 20:23:38,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:38,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 20:23:38,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:38,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 20:23:38,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:38,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-24 20:23:38,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:38,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 20:23:38,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:38,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 20:23:38,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:38,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 20:23:38,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:38,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 20:23:38,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:38,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 20:23:38,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:38,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 20:23:38,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:38,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-24 20:23:38,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:38,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 20:23:38,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:38,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 20:23:38,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:38,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 20:23:38,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:38,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-24 20:23:38,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:38,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 20:23:38,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:38,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 20:23:38,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:38,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 20:23:38,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:38,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-24 20:23:38,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:38,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-10-24 20:23:38,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:38,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-24 20:23:38,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:38,379 INFO L134 CoverageAnalysis]: Checked inductivity of 1008 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-10-24 20:23:38,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:23:38,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306226905] [2024-10-24 20:23:38,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306226905] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:23:38,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [482413829] [2024-10-24 20:23:38,380 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 20:23:38,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:23:38,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:23:38,382 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:23:38,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-24 20:23:38,430 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-24 20:23:38,430 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 20:23:38,431 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 20:23:38,433 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:23:38,493 INFO L134 CoverageAnalysis]: Checked inductivity of 1008 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 762 trivial. 0 not checked. [2024-10-24 20:23:38,493 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 20:23:38,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [482413829] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:23:38,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:23:38,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [18] total 21 [2024-10-24 20:23:38,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321536663] [2024-10-24 20:23:38,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:23:38,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 20:23:38,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:23:38,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 20:23:38,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=347, Unknown=0, NotChecked=0, Total=462 [2024-10-24 20:23:38,495 INFO L87 Difference]: Start difference. First operand 275 states and 340 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-24 20:23:38,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:23:38,565 INFO L93 Difference]: Finished difference Result 284 states and 349 transitions. [2024-10-24 20:23:38,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 20:23:38,566 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 146 [2024-10-24 20:23:38,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:23:38,567 INFO L225 Difference]: With dead ends: 284 [2024-10-24 20:23:38,567 INFO L226 Difference]: Without dead ends: 283 [2024-10-24 20:23:38,568 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=428, Unknown=0, NotChecked=0, Total=552 [2024-10-24 20:23:38,568 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 10 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 20:23:38,569 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 68 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 20:23:38,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2024-10-24 20:23:38,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 275. [2024-10-24 20:23:38,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 193 states have (on average 1.160621761658031) internal successors, (224), 194 states have internal predecessors, (224), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-10-24 20:23:38,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 340 transitions. [2024-10-24 20:23:38,590 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 340 transitions. Word has length 146 [2024-10-24 20:23:38,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:23:38,591 INFO L471 AbstractCegarLoop]: Abstraction has 275 states and 340 transitions. [2024-10-24 20:23:38,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-24 20:23:38,591 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 340 transitions. [2024-10-24 20:23:38,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-24 20:23:38,593 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:23:38,593 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:23:38,610 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-10-24 20:23:38,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-24 20:23:38,794 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-24 20:23:38,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:23:38,794 INFO L85 PathProgramCache]: Analyzing trace with hash -2047916611, now seen corresponding path program 2 times [2024-10-24 20:23:38,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:23:38,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401368749] [2024-10-24 20:23:38,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:38,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:23:38,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:39,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 20:23:39,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:39,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 20:23:39,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:39,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 20:23:39,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:39,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-24 20:23:39,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:39,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 20:23:39,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:39,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 20:23:39,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:39,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 20:23:39,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:39,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 20:23:39,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:39,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 20:23:39,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:39,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 20:23:39,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:39,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-24 20:23:39,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:39,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 20:23:39,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:39,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 20:23:39,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:39,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 20:23:39,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:39,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-24 20:23:39,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:39,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 20:23:39,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:39,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 20:23:39,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:39,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 20:23:39,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:39,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-24 20:23:39,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:39,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-10-24 20:23:39,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:39,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-24 20:23:39,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:39,264 INFO L134 CoverageAnalysis]: Checked inductivity of 1036 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-10-24 20:23:39,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:23:39,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401368749] [2024-10-24 20:23:39,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401368749] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:23:39,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1318706958] [2024-10-24 20:23:39,265 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 20:23:39,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:23:39,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:23:39,267 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:23:39,269 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-24 20:23:39,347 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 20:23:39,348 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 20:23:39,349 INFO L255 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-24 20:23:39,352 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:23:39,581 INFO L134 CoverageAnalysis]: Checked inductivity of 1036 backedges. 0 proven. 952 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-10-24 20:23:39,581 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:23:39,986 INFO L134 CoverageAnalysis]: Checked inductivity of 1036 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-10-24 20:23:39,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1318706958] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:23:39,986 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:23:39,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18, 19] total 41 [2024-10-24 20:23:39,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408853240] [2024-10-24 20:23:39,987 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:23:39,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-10-24 20:23:39,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:23:39,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-10-24 20:23:39,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=421, Invalid=1219, Unknown=0, NotChecked=0, Total=1640 [2024-10-24 20:23:39,989 INFO L87 Difference]: Start difference. First operand 275 states and 340 transitions. Second operand has 41 states, 41 states have (on average 3.073170731707317) internal successors, (126), 41 states have internal predecessors, (126), 14 states have call successors, (63), 8 states have call predecessors, (63), 8 states have return successors, (63), 14 states have call predecessors, (63), 14 states have call successors, (63) [2024-10-24 20:23:41,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:23:41,111 INFO L93 Difference]: Finished difference Result 419 states and 512 transitions. [2024-10-24 20:23:41,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-10-24 20:23:41,112 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 3.073170731707317) internal successors, (126), 41 states have internal predecessors, (126), 14 states have call successors, (63), 8 states have call predecessors, (63), 8 states have return successors, (63), 14 states have call predecessors, (63), 14 states have call successors, (63) Word has length 150 [2024-10-24 20:23:41,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:23:41,114 INFO L225 Difference]: With dead ends: 419 [2024-10-24 20:23:41,114 INFO L226 Difference]: Without dead ends: 405 [2024-10-24 20:23:41,117 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 407 GetRequests, 319 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2171 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1903, Invalid=6107, Unknown=0, NotChecked=0, Total=8010 [2024-10-24 20:23:41,118 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 347 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 20:23:41,118 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 289 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 20:23:41,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2024-10-24 20:23:41,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 300. [2024-10-24 20:23:41,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 210 states have (on average 1.1666666666666667) internal successors, (245), 211 states have internal predecessors, (245), 64 states have call successors, (64), 24 states have call predecessors, (64), 24 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-10-24 20:23:41,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 373 transitions. [2024-10-24 20:23:41,138 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 373 transitions. Word has length 150 [2024-10-24 20:23:41,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:23:41,139 INFO L471 AbstractCegarLoop]: Abstraction has 300 states and 373 transitions. [2024-10-24 20:23:41,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 3.073170731707317) internal successors, (126), 41 states have internal predecessors, (126), 14 states have call successors, (63), 8 states have call predecessors, (63), 8 states have return successors, (63), 14 states have call predecessors, (63), 14 states have call successors, (63) [2024-10-24 20:23:41,139 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 373 transitions. [2024-10-24 20:23:41,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-24 20:23:41,141 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:23:41,143 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1] [2024-10-24 20:23:41,160 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-10-24 20:23:41,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-10-24 20:23:41,343 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-24 20:23:41,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:23:41,344 INFO L85 PathProgramCache]: Analyzing trace with hash -2087789957, now seen corresponding path program 3 times [2024-10-24 20:23:41,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:23:41,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108172250] [2024-10-24 20:23:41,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:41,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:23:41,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:41,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 20:23:41,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:41,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 20:23:41,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:41,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 20:23:41,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:41,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-24 20:23:41,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:41,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 20:23:41,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:41,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 20:23:41,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:41,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 20:23:41,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:41,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 20:23:41,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:41,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 20:23:41,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:41,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 20:23:41,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:41,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-24 20:23:41,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:41,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 20:23:41,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:41,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 20:23:41,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:41,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 20:23:41,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:41,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-24 20:23:41,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:41,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 20:23:41,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:41,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-24 20:23:41,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:41,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-24 20:23:41,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:41,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-24 20:23:41,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:41,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 20:23:41,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:41,839 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 20:23:41,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:23:41,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108172250] [2024-10-24 20:23:41,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108172250] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:23:41,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1219825885] [2024-10-24 20:23:41,839 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-24 20:23:41,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:23:41,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:23:41,842 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) [2024-10-24 20:23:41,843 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-24 20:23:41,906 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-10-24 20:23:41,907 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 20:23:41,907 INFO L255 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 20:23:41,910 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:23:41,975 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 171 proven. 0 refuted. 0 times theorem prover too weak. 697 trivial. 0 not checked. [2024-10-24 20:23:41,976 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 20:23:41,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1219825885] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:23:41,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:23:41,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [20] total 23 [2024-10-24 20:23:41,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405013930] [2024-10-24 20:23:41,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:23:41,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 20:23:41,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:23:41,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 20:23:41,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=428, Unknown=0, NotChecked=0, Total=552 [2024-10-24 20:23:41,978 INFO L87 Difference]: Start difference. First operand 300 states and 373 transitions. Second operand has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-24 20:23:42,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:23:42,042 INFO L93 Difference]: Finished difference Result 316 states and 389 transitions. [2024-10-24 20:23:42,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 20:23:42,042 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 150 [2024-10-24 20:23:42,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:23:42,044 INFO L225 Difference]: With dead ends: 316 [2024-10-24 20:23:42,044 INFO L226 Difference]: Without dead ends: 204 [2024-10-24 20:23:42,045 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=134, Invalid=516, Unknown=0, NotChecked=0, Total=650 [2024-10-24 20:23:42,045 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 9 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 20:23:42,045 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 95 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 20:23:42,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2024-10-24 20:23:42,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2024-10-24 20:23:42,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 138 states have (on average 1.0144927536231885) internal successors, (140), 139 states have internal predecessors, (140), 48 states have call successors, (48), 16 states have call predecessors, (48), 16 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-10-24 20:23:42,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 236 transitions. [2024-10-24 20:23:42,057 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 236 transitions. Word has length 150 [2024-10-24 20:23:42,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:23:42,058 INFO L471 AbstractCegarLoop]: Abstraction has 204 states and 236 transitions. [2024-10-24 20:23:42,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-24 20:23:42,058 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 236 transitions. [2024-10-24 20:23:42,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2024-10-24 20:23:42,061 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:23:42,061 INFO L215 NwaCegarLoop]: trace histogram [48, 48, 48, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1] [2024-10-24 20:23:42,078 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-10-24 20:23:42,262 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,SelfDestructingSolverStorable15 [2024-10-24 20:23:42,263 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-24 20:23:42,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:23:42,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1616045469, now seen corresponding path program 3 times [2024-10-24 20:23:42,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:23:42,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030935935] [2024-10-24 20:23:42,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:42,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:23:42,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:43,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 20:23:43,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:43,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 20:23:43,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:43,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 20:23:43,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:43,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-24 20:23:43,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:43,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 20:23:43,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:43,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 20:23:43,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:43,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 20:23:43,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:43,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 20:23:43,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:43,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 20:23:43,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:43,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 20:23:43,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:43,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-24 20:23:43,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:43,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 20:23:43,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:43,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 20:23:43,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:43,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 20:23:43,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:43,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-24 20:23:43,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:43,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 20:23:43,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:43,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 20:23:43,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:43,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 20:23:43,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:43,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-24 20:23:43,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:43,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-10-24 20:23:43,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:43,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-24 20:23:43,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:43,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-24 20:23:43,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:43,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-24 20:23:43,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:43,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-24 20:23:43,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:43,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-10-24 20:23:43,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:43,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-10-24 20:23:43,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:43,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-10-24 20:23:43,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:43,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-10-24 20:23:43,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:43,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-10-24 20:23:43,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:43,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-10-24 20:23:43,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:43,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-10-24 20:23:43,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:43,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2024-10-24 20:23:43,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:43,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2024-10-24 20:23:43,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:43,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2024-10-24 20:23:43,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:43,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2024-10-24 20:23:43,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:43,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2024-10-24 20:23:43,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:43,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2024-10-24 20:23:43,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:43,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2024-10-24 20:23:43,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:43,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2024-10-24 20:23:43,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:43,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2024-10-24 20:23:43,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:43,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2024-10-24 20:23:43,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:43,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2024-10-24 20:23:43,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:43,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2024-10-24 20:23:43,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:43,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2024-10-24 20:23:43,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:43,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2024-10-24 20:23:43,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:43,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2024-10-24 20:23:43,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:43,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2024-10-24 20:23:43,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:43,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2024-10-24 20:23:43,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:43,670 INFO L134 CoverageAnalysis]: Checked inductivity of 5520 backedges. 0 proven. 1008 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-10-24 20:23:43,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:23:43,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030935935] [2024-10-24 20:23:43,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030935935] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:23:43,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2046443795] [2024-10-24 20:23:43,671 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-24 20:23:43,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:23:43,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:23:43,673 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) [2024-10-24 20:23:43,674 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-24 20:23:43,742 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-24 20:23:43,742 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 20:23:43,743 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 20:23:43,747 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:23:43,861 INFO L134 CoverageAnalysis]: Checked inductivity of 5520 backedges. 663 proven. 0 refuted. 0 times theorem prover too weak. 4857 trivial. 0 not checked. [2024-10-24 20:23:43,861 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 20:23:43,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2046443795] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:23:43,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:23:43,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [36] total 39 [2024-10-24 20:23:43,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448091724] [2024-10-24 20:23:43,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:23:43,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 20:23:43,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:23:43,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 20:23:43,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=419, Invalid=1141, Unknown=0, NotChecked=0, Total=1560 [2024-10-24 20:23:43,865 INFO L87 Difference]: Start difference. First operand 204 states and 236 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-24 20:23:43,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:23:43,950 INFO L93 Difference]: Finished difference Result 204 states and 236 transitions. [2024-10-24 20:23:43,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 20:23:43,951 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 326 [2024-10-24 20:23:43,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:23:43,956 INFO L225 Difference]: With dead ends: 204 [2024-10-24 20:23:43,956 INFO L226 Difference]: Without dead ends: 203 [2024-10-24 20:23:43,957 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 458 GetRequests, 418 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 376 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=431, Invalid=1291, Unknown=0, NotChecked=0, Total=1722 [2024-10-24 20:23:43,958 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 6 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 20:23:43,960 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 40 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 20:23:43,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2024-10-24 20:23:43,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2024-10-24 20:23:43,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 138 states have (on average 1.0072463768115942) internal successors, (139), 138 states have internal predecessors, (139), 48 states have call successors, (48), 16 states have call predecessors, (48), 16 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-10-24 20:23:43,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 235 transitions. [2024-10-24 20:23:43,978 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 235 transitions. Word has length 326 [2024-10-24 20:23:43,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:23:43,979 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 235 transitions. [2024-10-24 20:23:43,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-24 20:23:43,980 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 235 transitions. [2024-10-24 20:23:44,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2024-10-24 20:23:44,008 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:23:44,008 INFO L215 NwaCegarLoop]: trace histogram [48, 48, 48, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:23:44,025 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-10-24 20:23:44,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-10-24 20:23:44,209 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-24 20:23:44,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:23:44,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1961556464, now seen corresponding path program 3 times [2024-10-24 20:23:44,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:23:44,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614185494] [2024-10-24 20:23:44,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:44,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:23:44,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:45,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 20:23:45,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:45,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 20:23:45,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:45,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 20:23:45,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:45,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-24 20:23:45,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:45,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 20:23:45,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:45,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 20:23:45,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:45,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 20:23:45,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:45,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 20:23:45,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:45,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 20:23:45,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:45,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 20:23:45,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:45,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-24 20:23:45,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:45,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 20:23:45,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:45,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 20:23:45,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:45,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 20:23:45,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:45,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-24 20:23:45,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:45,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 20:23:45,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:45,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 20:23:45,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:45,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 20:23:45,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:45,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-24 20:23:45,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:45,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-10-24 20:23:45,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:45,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-24 20:23:45,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:45,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-24 20:23:45,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:45,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-24 20:23:45,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:45,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-24 20:23:45,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:45,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-10-24 20:23:45,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:45,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-10-24 20:23:45,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:45,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-10-24 20:23:45,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:45,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-10-24 20:23:45,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:45,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-10-24 20:23:45,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:45,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-10-24 20:23:45,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:45,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-10-24 20:23:45,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:45,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2024-10-24 20:23:45,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:45,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2024-10-24 20:23:45,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:45,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2024-10-24 20:23:45,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:45,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2024-10-24 20:23:45,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:45,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2024-10-24 20:23:45,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:45,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2024-10-24 20:23:45,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:45,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2024-10-24 20:23:45,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:45,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2024-10-24 20:23:45,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:45,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2024-10-24 20:23:45,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:45,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2024-10-24 20:23:45,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:45,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2024-10-24 20:23:45,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:45,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2024-10-24 20:23:45,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:45,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2024-10-24 20:23:45,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:45,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2024-10-24 20:23:45,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:45,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2024-10-24 20:23:45,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:45,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2024-10-24 20:23:45,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:45,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2024-10-24 20:23:45,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:45,483 INFO L134 CoverageAnalysis]: Checked inductivity of 5536 backedges. 0 proven. 1024 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-10-24 20:23:45,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:23:45,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614185494] [2024-10-24 20:23:45,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614185494] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:23:45,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1612659011] [2024-10-24 20:23:45,483 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-24 20:23:45,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:23:45,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:23:45,485 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) [2024-10-24 20:23:45,491 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-10-24 20:23:45,569 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-24 20:23:45,570 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 20:23:45,570 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 20:23:45,574 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:23:45,709 INFO L134 CoverageAnalysis]: Checked inductivity of 5536 backedges. 678 proven. 1 refuted. 0 times theorem prover too weak. 4857 trivial. 0 not checked. [2024-10-24 20:23:45,710 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:23:45,980 INFO L134 CoverageAnalysis]: Checked inductivity of 5536 backedges. 138 proven. 1 refuted. 0 times theorem prover too weak. 5397 trivial. 0 not checked. [2024-10-24 20:23:45,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1612659011] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:23:45,980 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:23:45,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 6, 6] total 47 [2024-10-24 20:23:45,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029374347] [2024-10-24 20:23:45,981 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:23:45,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2024-10-24 20:23:45,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:23:45,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2024-10-24 20:23:45,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=535, Invalid=1627, Unknown=0, NotChecked=0, Total=2162 [2024-10-24 20:23:45,984 INFO L87 Difference]: Start difference. First operand 203 states and 235 transitions. Second operand has 47 states, 47 states have (on average 2.6382978723404253) internal successors, (124), 47 states have internal predecessors, (124), 19 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (57), 19 states have call predecessors, (57), 19 states have call successors, (57) [2024-10-24 20:23:46,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:23:46,913 INFO L93 Difference]: Finished difference Result 218 states and 253 transitions. [2024-10-24 20:23:46,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2024-10-24 20:23:46,913 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 2.6382978723404253) internal successors, (124), 47 states have internal predecessors, (124), 19 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (57), 19 states have call predecessors, (57), 19 states have call successors, (57) Word has length 330 [2024-10-24 20:23:46,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:23:46,914 INFO L225 Difference]: With dead ends: 218 [2024-10-24 20:23:46,914 INFO L226 Difference]: Without dead ends: 0 [2024-10-24 20:23:46,917 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 826 GetRequests, 745 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1246 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=2084, Invalid=4722, Unknown=0, NotChecked=0, Total=6806 [2024-10-24 20:23:46,918 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 337 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 20:23:46,918 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 134 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 20:23:46,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-24 20:23:46,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-24 20:23:46,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 20:23:46,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-24 20:23:46,919 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 330 [2024-10-24 20:23:46,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:23:46,919 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-24 20:23:46,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 2.6382978723404253) internal successors, (124), 47 states have internal predecessors, (124), 19 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (57), 19 states have call predecessors, (57), 19 states have call successors, (57) [2024-10-24 20:23:46,920 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-24 20:23:46,920 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-24 20:23:46,922 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2024-10-24 20:23:46,923 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2024-10-24 20:23:46,923 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2024-10-24 20:23:46,923 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2024-10-24 20:23:46,938 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-10-24 20:23:47,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:23:47,128 INFO L407 BasicCegarLoop]: Path program histogram: [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:23:47,131 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-24 20:23:50,348 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 20:23:50,364 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 08:23:50 BoogieIcfgContainer [2024-10-24 20:23:50,364 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 20:23:50,365 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 20:23:50,365 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 20:23:50,365 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 20:23:50,366 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:23:26" (3/4) ... [2024-10-24 20:23:50,367 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-24 20:23:50,370 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-10-24 20:23:50,374 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-10-24 20:23:50,375 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-10-24 20:23:50,375 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-24 20:23:50,375 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-24 20:23:50,457 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-24 20:23:50,458 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-24 20:23:50,458 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 20:23:50,459 INFO L158 Benchmark]: Toolchain (without parser) took 24665.80ms. Allocated memory was 176.2MB in the beginning and 509.6MB in the end (delta: 333.4MB). Free memory was 121.7MB in the beginning and 231.2MB in the end (delta: -109.6MB). Peak memory consumption was 226.9MB. Max. memory is 16.1GB. [2024-10-24 20:23:50,459 INFO L158 Benchmark]: CDTParser took 0.83ms. Allocated memory is still 176.2MB. Free memory is still 136.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 20:23:50,459 INFO L158 Benchmark]: CACSL2BoogieTranslator took 241.52ms. Allocated memory is still 176.2MB. Free memory was 121.1MB in the beginning and 108.2MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-24 20:23:50,459 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.97ms. Allocated memory is still 176.2MB. Free memory was 108.2MB in the beginning and 106.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 20:23:50,460 INFO L158 Benchmark]: Boogie Preprocessor took 36.93ms. Allocated memory is still 176.2MB. Free memory was 106.5MB in the beginning and 104.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 20:23:50,460 INFO L158 Benchmark]: RCFGBuilder took 405.72ms. Allocated memory is still 176.2MB. Free memory was 104.9MB in the beginning and 91.4MB in the end (delta: 13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-24 20:23:50,460 INFO L158 Benchmark]: TraceAbstraction took 23847.74ms. Allocated memory was 176.2MB in the beginning and 509.6MB in the end (delta: 333.4MB). Free memory was 90.6MB in the beginning and 236.5MB in the end (delta: -145.9MB). Peak memory consumption was 254.4MB. Max. memory is 16.1GB. [2024-10-24 20:23:50,460 INFO L158 Benchmark]: Witness Printer took 93.22ms. Allocated memory is still 509.6MB. Free memory was 236.5MB in the beginning and 231.2MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-24 20:23:50,462 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.83ms. Allocated memory is still 176.2MB. Free memory is still 136.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 241.52ms. Allocated memory is still 176.2MB. Free memory was 121.1MB in the beginning and 108.2MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.97ms. Allocated memory is still 176.2MB. Free memory was 108.2MB in the beginning and 106.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.93ms. Allocated memory is still 176.2MB. Free memory was 106.5MB in the beginning and 104.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 405.72ms. Allocated memory is still 176.2MB. Free memory was 104.9MB in the beginning and 91.4MB in the end (delta: 13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 23847.74ms. Allocated memory was 176.2MB in the beginning and 509.6MB in the end (delta: 333.4MB). Free memory was 90.6MB in the beginning and 236.5MB in the end (delta: -145.9MB). Peak memory consumption was 254.4MB. Max. memory is 16.1GB. * Witness Printer took 93.22ms. Allocated memory is still 509.6MB. Free memory was 236.5MB in the beginning and 231.2MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 31 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 20.6s, OverallIterations: 18, TraceHistogramMax: 48, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.1s, AutomataDifference: 5.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1677 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1677 mSDsluCounter, 2855 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2400 mSDsCounter, 239 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2264 IncrementalHoareTripleChecker+Invalid, 2503 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 239 mSolverCounterUnsat, 455 mSDtfsCounter, 2264 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3560 GetRequests, 2995 SyntacticMatches, 0 SemanticMatches, 565 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7226 ImplicationChecksByTransitivity, 6.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=300occurred in iteration=15, InterpolantAutomatonStates: 400, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 18 MinimizatonAttempts, 436 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 10.0s InterpolantComputationTime, 3409 NumberOfCodeBlocks, 2567 NumberOfCodeBlocksAsserted, 39 NumberOfCheckSat, 4350 ConstructedInterpolants, 0 QuantifiedInterpolants, 8110 SizeOfPredicates, 86 NumberOfNonLiveVariables, 2004 ConjunctsInSsa, 118 ConjunctsInUnsatCore, 41 InterpolantComputations, 9 PerfectInterpolantSequences, 34212/39889 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: ((((2 <= counter) && (counter <= 20)) || (counter == 0)) || (counter == 1)) - InvariantResult [Line: 45]: Loop Invariant Derived loop invariant: ((1 <= counter) && (counter <= 2147483646)) - ProcedureContractResult [Line: 14]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Ensures: (counter == \old(counter)) RESULT: Ultimate proved your program to be correct! [2024-10-24 20:23:50,494 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE