./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/ps2-ll_unwindbound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_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 d25bbd57503ddf7114a4e56e0d2f1aa1d87b632e5d2d981ebfe6e2db50f2e17b --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 21:00:48,840 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 21:00:48,909 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-14 21:00:48,913 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 21:00:48,913 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 21:00:48,935 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 21:00:48,935 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 21:00:48,936 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 21:00:48,937 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 21:00:48,938 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 21:00:48,939 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 21:00:48,939 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 21:00:48,940 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 21:00:48,940 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 21:00:48,940 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 21:00:48,940 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 21:00:48,941 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 21:00:48,941 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 21:00:48,941 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 21:00:48,941 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 21:00:48,942 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 21:00:48,942 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 21:00:48,943 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 21:00:48,943 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 21:00:48,943 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 21:00:48,944 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-14 21:00:48,944 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 21:00:48,944 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 21:00:48,945 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 21:00:48,945 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 21:00:48,945 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 21:00:48,945 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 21:00:48,946 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 21:00:48,946 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 21:00:48,946 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 21:00:48,946 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 21:00:48,947 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 21:00:48,947 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 21:00:48,947 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 21:00:48,948 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 21:00:48,948 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 21:00:48,948 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 21:00:48,948 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 21:00:48,949 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 21:00:48,949 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d25bbd57503ddf7114a4e56e0d2f1aa1d87b632e5d2d981ebfe6e2db50f2e17b [2024-10-14 21:00:49,249 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 21:00:49,272 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 21:00:49,274 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 21:00:49,275 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 21:00:49,276 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 21:00:49,277 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound20.c [2024-10-14 21:00:50,575 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 21:00:50,755 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 21:00:50,757 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound20.c [2024-10-14 21:00:50,767 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f893556d2/7b0e9971e6304334a61d867e458fc4f7/FLAG261bcf95a [2024-10-14 21:00:50,780 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f893556d2/7b0e9971e6304334a61d867e458fc4f7 [2024-10-14 21:00:50,782 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 21:00:50,784 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 21:00:50,787 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 21:00:50,787 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 21:00:50,792 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 21:00:50,792 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 09:00:50" (1/1) ... [2024-10-14 21:00:50,795 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a45df10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:00:50, skipping insertion in model container [2024-10-14 21:00:50,795 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 09:00:50" (1/1) ... [2024-10-14 21:00:50,812 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 21:00:50,974 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 21:00:50,983 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 21:00:51,001 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 21:00:51,026 INFO L204 MainTranslator]: Completed translation [2024-10-14 21:00:51,027 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:00:51 WrapperNode [2024-10-14 21:00:51,027 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 21:00:51,028 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 21:00:51,029 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 21:00:51,029 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 21:00:51,035 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:00:51" (1/1) ... [2024-10-14 21:00:51,042 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:00:51" (1/1) ... [2024-10-14 21:00:51,060 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 68 [2024-10-14 21:00:51,062 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 21:00:51,063 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 21:00:51,063 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 21:00:51,063 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 21:00:51,073 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:00:51" (1/1) ... [2024-10-14 21:00:51,073 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:00:51" (1/1) ... [2024-10-14 21:00:51,079 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:00:51" (1/1) ... [2024-10-14 21:00:51,096 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-14 21:00:51,098 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:00:51" (1/1) ... [2024-10-14 21:00:51,098 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:00:51" (1/1) ... [2024-10-14 21:00:51,101 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:00:51" (1/1) ... [2024-10-14 21:00:51,107 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:00:51" (1/1) ... [2024-10-14 21:00:51,110 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:00:51" (1/1) ... [2024-10-14 21:00:51,111 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:00:51" (1/1) ... [2024-10-14 21:00:51,112 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 21:00:51,113 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 21:00:51,113 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 21:00:51,113 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 21:00:51,114 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:00:51" (1/1) ... [2024-10-14 21:00:51,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 21:00:51,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 21:00:51,147 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 21:00:51,149 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 [2024-10-14 21:00:51,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 21:00:51,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 21:00:51,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 21:00:51,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 21:00:51,189 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-14 21:00:51,189 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-14 21:00:51,242 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 21:00:51,243 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 21:00:51,472 INFO L? ?]: Removed 38 outVars from TransFormulas that were not future-live. [2024-10-14 21:00:51,472 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 21:00:51,499 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 21:00:51,500 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 21:00:51,500 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 09:00:51 BoogieIcfgContainer [2024-10-14 21:00:51,501 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 21:00:51,503 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 21:00:51,503 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 21:00:51,506 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 21:00:51,506 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 09:00:50" (1/3) ... [2024-10-14 21:00:51,507 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@442f4d15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 09:00:51, skipping insertion in model container [2024-10-14 21:00:51,507 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:00:51" (2/3) ... [2024-10-14 21:00:51,508 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@442f4d15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 09:00:51, skipping insertion in model container [2024-10-14 21:00:51,508 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 09:00:51" (3/3) ... [2024-10-14 21:00:51,509 INFO L112 eAbstractionObserver]: Analyzing ICFG ps2-ll_unwindbound20.c [2024-10-14 21:00:51,524 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 21:00:51,525 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2024-10-14 21:00:51,587 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 21:00:51,594 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;@584edf4b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 21:00:51,595 INFO L334 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2024-10-14 21:00:51,598 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 32 states have (on average 1.875) internal successors, (60), 56 states have internal predecessors, (60), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 21:00:51,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-10-14 21:00:51,605 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:00:51,605 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-10-14 21:00:51,606 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-14 21:00:51,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:00:51,613 INFO L85 PathProgramCache]: Analyzing trace with hash 119869, now seen corresponding path program 1 times [2024-10-14 21:00:51,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:00:51,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746218704] [2024-10-14 21:00:51,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:00:51,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:00:51,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:51,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 21:00:51,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:00:51,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746218704] [2024-10-14 21:00:51,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746218704] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 21:00:51,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 21:00:51,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 21:00:51,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987561571] [2024-10-14 21:00:51,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 21:00:51,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 21:00:51,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:00:51,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 21:00:51,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 21:00:51,754 INFO L87 Difference]: Start difference. First operand has 60 states, 32 states have (on average 1.875) internal successors, (60), 56 states have internal predecessors, (60), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 21:00:51,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:00:51,782 INFO L93 Difference]: Finished difference Result 117 states and 129 transitions. [2024-10-14 21:00:51,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 21:00:51,786 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-10-14 21:00:51,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:00:51,792 INFO L225 Difference]: With dead ends: 117 [2024-10-14 21:00:51,792 INFO L226 Difference]: Without dead ends: 55 [2024-10-14 21:00:51,794 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 [2024-10-14 21:00:51,797 INFO L432 NwaCegarLoop]: 58 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, 58 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 [2024-10-14 21:00:51,798 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 21:00:51,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-10-14 21:00:51,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2024-10-14 21:00:51,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 31 states have (on average 1.7419354838709677) internal successors, (54), 52 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 21:00:51,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 56 transitions. [2024-10-14 21:00:51,825 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 56 transitions. Word has length 3 [2024-10-14 21:00:51,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:00:51,825 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 56 transitions. [2024-10-14 21:00:51,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 21:00:51,826 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 56 transitions. [2024-10-14 21:00:51,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-10-14 21:00:51,826 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:00:51,826 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-10-14 21:00:51,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 21:00:51,827 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-14 21:00:51,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:00:51,827 INFO L85 PathProgramCache]: Analyzing trace with hash 118428, now seen corresponding path program 1 times [2024-10-14 21:00:51,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:00:51,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804452707] [2024-10-14 21:00:51,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:00:51,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:00:51,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:51,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 21:00:51,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:00:51,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804452707] [2024-10-14 21:00:51,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804452707] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 21:00:51,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 21:00:51,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 21:00:51,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551782936] [2024-10-14 21:00:51,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 21:00:51,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 21:00:51,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:00:51,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 21:00:51,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 21:00:51,927 INFO L87 Difference]: Start difference. First operand 55 states and 56 transitions. Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 21:00:51,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:00:51,992 INFO L93 Difference]: Finished difference Result 76 states and 77 transitions. [2024-10-14 21:00:51,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 21:00:51,993 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-10-14 21:00:51,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:00:51,994 INFO L225 Difference]: With dead ends: 76 [2024-10-14 21:00:51,994 INFO L226 Difference]: Without dead ends: 59 [2024-10-14 21:00:51,995 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 21:00:51,997 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 4 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 21:00:51,998 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 151 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 21:00:51,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2024-10-14 21:00:52,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2024-10-14 21:00:52,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 35 states have (on average 1.6571428571428573) internal successors, (58), 56 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 21:00:52,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 60 transitions. [2024-10-14 21:00:52,010 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 60 transitions. Word has length 3 [2024-10-14 21:00:52,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:00:52,011 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 60 transitions. [2024-10-14 21:00:52,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 21:00:52,011 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 60 transitions. [2024-10-14 21:00:52,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-14 21:00:52,013 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:00:52,013 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-14 21:00:52,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 21:00:52,014 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-14 21:00:52,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:00:52,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1997829763, now seen corresponding path program 1 times [2024-10-14 21:00:52,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:00:52,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413529051] [2024-10-14 21:00:52,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:00:52,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:00:52,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 21:00:52,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [620560060] [2024-10-14 21:00:52,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:00:52,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:00:52,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 21:00:52,037 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 21:00:52,038 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 21:00:52,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:52,091 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 21:00:52,097 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 21:00:52,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 21:00:52,118 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 21:00:52,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:00:52,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413529051] [2024-10-14 21:00:52,119 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 21:00:52,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [620560060] [2024-10-14 21:00:52,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [620560060] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 21:00:52,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 21:00:52,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-14 21:00:52,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948647089] [2024-10-14 21:00:52,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 21:00:52,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 21:00:52,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:00:52,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 21:00:52,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 21:00:52,123 INFO L87 Difference]: Start difference. First operand 59 states and 60 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 21:00:52,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:00:52,208 INFO L93 Difference]: Finished difference Result 91 states and 101 transitions. [2024-10-14 21:00:52,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 21:00:52,208 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2024-10-14 21:00:52,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:00:52,210 INFO L225 Difference]: With dead ends: 91 [2024-10-14 21:00:52,210 INFO L226 Difference]: Without dead ends: 87 [2024-10-14 21:00:52,210 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 21:00:52,211 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 25 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 21:00:52,212 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 60 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 21:00:52,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-10-14 21:00:52,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 75. [2024-10-14 21:00:52,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 50 states have (on average 1.64) internal successors, (82), 71 states have internal predecessors, (82), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 21:00:52,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 86 transitions. [2024-10-14 21:00:52,229 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 86 transitions. Word has length 7 [2024-10-14 21:00:52,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:00:52,229 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 86 transitions. [2024-10-14 21:00:52,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 21:00:52,230 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 86 transitions. [2024-10-14 21:00:52,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-14 21:00:52,230 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:00:52,230 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 21:00:52,249 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-14 21:00:52,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:00:52,431 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-14 21:00:52,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:00:52,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1803180561, now seen corresponding path program 1 times [2024-10-14 21:00:52,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:00:52,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513397188] [2024-10-14 21:00:52,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:00:52,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:00:52,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:52,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 21:00:52,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:00:52,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513397188] [2024-10-14 21:00:52,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513397188] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 21:00:52,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 21:00:52,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-14 21:00:52,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347767080] [2024-10-14 21:00:52,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 21:00:52,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 21:00:52,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:00:52,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 21:00:52,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 21:00:52,505 INFO L87 Difference]: Start difference. First operand 75 states and 86 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 21:00:52,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:00:52,580 INFO L93 Difference]: Finished difference Result 87 states and 101 transitions. [2024-10-14 21:00:52,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 21:00:52,580 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2024-10-14 21:00:52,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:00:52,581 INFO L225 Difference]: With dead ends: 87 [2024-10-14 21:00:52,581 INFO L226 Difference]: Without dead ends: 85 [2024-10-14 21:00:52,581 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 21:00:52,582 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 22 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 21:00:52,583 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 58 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 21:00:52,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-10-14 21:00:52,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 76. [2024-10-14 21:00:52,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 51 states have (on average 1.607843137254902) internal successors, (82), 72 states have internal predecessors, (82), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 21:00:52,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 86 transitions. [2024-10-14 21:00:52,591 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 86 transitions. Word has length 8 [2024-10-14 21:00:52,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:00:52,592 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 86 transitions. [2024-10-14 21:00:52,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 21:00:52,592 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 86 transitions. [2024-10-14 21:00:52,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-10-14 21:00:52,592 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:00:52,593 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 21:00:52,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 21:00:52,593 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-14 21:00:52,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:00:52,593 INFO L85 PathProgramCache]: Analyzing trace with hash 64022597, now seen corresponding path program 1 times [2024-10-14 21:00:52,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:00:52,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525026781] [2024-10-14 21:00:52,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:00:52,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:00:52,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:52,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 21:00:52,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:00:52,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525026781] [2024-10-14 21:00:52,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525026781] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 21:00:52,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 21:00:52,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-14 21:00:52,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226454994] [2024-10-14 21:00:52,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 21:00:52,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 21:00:52,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:00:52,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 21:00:52,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 21:00:52,644 INFO L87 Difference]: Start difference. First operand 76 states and 86 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 21:00:52,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:00:52,716 INFO L93 Difference]: Finished difference Result 91 states and 99 transitions. [2024-10-14 21:00:52,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 21:00:52,717 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-10-14 21:00:52,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:00:52,718 INFO L225 Difference]: With dead ends: 91 [2024-10-14 21:00:52,718 INFO L226 Difference]: Without dead ends: 85 [2024-10-14 21:00:52,718 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 21:00:52,719 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 21 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 21:00:52,720 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 64 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 21:00:52,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-10-14 21:00:52,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 80. [2024-10-14 21:00:52,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 55 states have (on average 1.5272727272727273) internal successors, (84), 76 states have internal predecessors, (84), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 21:00:52,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 88 transitions. [2024-10-14 21:00:52,735 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 88 transitions. Word has length 9 [2024-10-14 21:00:52,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:00:52,735 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 88 transitions. [2024-10-14 21:00:52,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 21:00:52,735 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 88 transitions. [2024-10-14 21:00:52,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-14 21:00:52,736 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:00:52,736 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 21:00:52,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 21:00:52,736 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-14 21:00:52,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:00:52,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1396175367, now seen corresponding path program 1 times [2024-10-14 21:00:52,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:00:52,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580895649] [2024-10-14 21:00:52,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:00:52,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:00:52,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:52,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 21:00:52,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:00:52,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580895649] [2024-10-14 21:00:52,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580895649] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 21:00:52,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 21:00:52,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 21:00:52,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268229955] [2024-10-14 21:00:52,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 21:00:52,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 21:00:52,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:00:52,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 21:00:52,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 21:00:52,825 INFO L87 Difference]: Start difference. First operand 80 states and 88 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 21:00:52,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:00:52,972 INFO L93 Difference]: Finished difference Result 95 states and 104 transitions. [2024-10-14 21:00:52,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 21:00:52,972 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 11 [2024-10-14 21:00:52,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:00:52,973 INFO L225 Difference]: With dead ends: 95 [2024-10-14 21:00:52,974 INFO L226 Difference]: Without dead ends: 92 [2024-10-14 21:00:52,974 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 21:00:52,975 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 60 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 21:00:52,977 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 62 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 21:00:52,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-10-14 21:00:52,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 86. [2024-10-14 21:00:52,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 61 states have (on average 1.4918032786885247) internal successors, (91), 82 states have internal predecessors, (91), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 21:00:52,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 95 transitions. [2024-10-14 21:00:52,987 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 95 transitions. Word has length 11 [2024-10-14 21:00:52,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:00:52,988 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 95 transitions. [2024-10-14 21:00:52,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 21:00:52,988 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 95 transitions. [2024-10-14 21:00:52,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-14 21:00:52,989 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:00:52,989 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 21:00:52,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 21:00:52,989 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-14 21:00:52,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:00:52,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1694733257, now seen corresponding path program 1 times [2024-10-14 21:00:52,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:00:52,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760104994] [2024-10-14 21:00:52,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:00:52,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:00:53,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:53,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 21:00:53,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:00:53,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760104994] [2024-10-14 21:00:53,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760104994] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 21:00:53,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 21:00:53,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 21:00:53,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640004188] [2024-10-14 21:00:53,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 21:00:53,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 21:00:53,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:00:53,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 21:00:53,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 21:00:53,100 INFO L87 Difference]: Start difference. First operand 86 states and 95 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 21:00:53,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:00:53,181 INFO L93 Difference]: Finished difference Result 91 states and 96 transitions. [2024-10-14 21:00:53,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 21:00:53,182 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 13 [2024-10-14 21:00:53,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:00:53,182 INFO L225 Difference]: With dead ends: 91 [2024-10-14 21:00:53,182 INFO L226 Difference]: Without dead ends: 81 [2024-10-14 21:00:53,183 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 21:00:53,183 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 36 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 21:00:53,184 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 56 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 21:00:53,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-10-14 21:00:53,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 79. [2024-10-14 21:00:53,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 54 states have (on average 1.5185185185185186) internal successors, (82), 75 states have internal predecessors, (82), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 21:00:53,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 86 transitions. [2024-10-14 21:00:53,196 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 86 transitions. Word has length 13 [2024-10-14 21:00:53,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:00:53,199 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 86 transitions. [2024-10-14 21:00:53,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 21:00:53,199 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 86 transitions. [2024-10-14 21:00:53,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-10-14 21:00:53,199 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:00:53,200 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 21:00:53,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 21:00:53,200 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-14 21:00:53,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:00:53,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1158687737, now seen corresponding path program 1 times [2024-10-14 21:00:53,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:00:53,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13256548] [2024-10-14 21:00:53,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:00:53,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:00:53,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:53,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 21:00:53,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:53,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 21:00:53,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:00:53,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13256548] [2024-10-14 21:00:53,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13256548] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 21:00:53,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 21:00:53,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 21:00:53,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27072656] [2024-10-14 21:00:53,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 21:00:53,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 21:00:53,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:00:53,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 21:00:53,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 21:00:53,255 INFO L87 Difference]: Start difference. First operand 79 states and 86 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 21:00:53,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:00:53,281 INFO L93 Difference]: Finished difference Result 81 states and 86 transitions. [2024-10-14 21:00:53,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 21:00:53,281 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2024-10-14 21:00:53,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:00:53,282 INFO L225 Difference]: With dead ends: 81 [2024-10-14 21:00:53,282 INFO L226 Difference]: Without dead ends: 79 [2024-10-14 21:00:53,282 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 21:00:53,284 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 1 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 21:00:53,284 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 101 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 21:00:53,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-10-14 21:00:53,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2024-10-14 21:00:53,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 54 states have (on average 1.4814814814814814) internal successors, (80), 75 states have internal predecessors, (80), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 21:00:53,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 84 transitions. [2024-10-14 21:00:53,296 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 84 transitions. Word has length 20 [2024-10-14 21:00:53,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:00:53,297 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 84 transitions. [2024-10-14 21:00:53,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 21:00:53,297 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 84 transitions. [2024-10-14 21:00:53,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-10-14 21:00:53,297 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:00:53,298 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 21:00:53,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 21:00:53,298 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-14 21:00:53,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:00:53,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1462148739, now seen corresponding path program 1 times [2024-10-14 21:00:53,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:00:53,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830678204] [2024-10-14 21:00:53,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:00:53,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:00:53,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:53,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 21:00:53,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:53,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 21:00:53,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:00:53,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830678204] [2024-10-14 21:00:53,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830678204] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 21:00:53,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 21:00:53,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 21:00:53,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628776403] [2024-10-14 21:00:53,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 21:00:53,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 21:00:53,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:00:53,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 21:00:53,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 21:00:53,397 INFO L87 Difference]: Start difference. First operand 79 states and 84 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 21:00:53,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:00:53,488 INFO L93 Difference]: Finished difference Result 82 states and 88 transitions. [2024-10-14 21:00:53,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 21:00:53,489 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2024-10-14 21:00:53,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:00:53,490 INFO L225 Difference]: With dead ends: 82 [2024-10-14 21:00:53,490 INFO L226 Difference]: Without dead ends: 81 [2024-10-14 21:00:53,490 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 21:00:53,491 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 1 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 21:00:53,491 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 77 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 21:00:53,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-10-14 21:00:53,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 80. [2024-10-14 21:00:53,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 55 states have (on average 1.4727272727272727) internal successors, (81), 76 states have internal predecessors, (81), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 21:00:53,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 85 transitions. [2024-10-14 21:00:53,503 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 85 transitions. Word has length 24 [2024-10-14 21:00:53,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:00:53,504 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 85 transitions. [2024-10-14 21:00:53,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 21:00:53,504 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 85 transitions. [2024-10-14 21:00:53,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-10-14 21:00:53,504 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:00:53,505 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 21:00:53,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 21:00:53,505 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-14 21:00:53,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:00:53,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1918029427, now seen corresponding path program 1 times [2024-10-14 21:00:53,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:00:53,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143055973] [2024-10-14 21:00:53,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:00:53,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:00:53,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:53,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 21:00:53,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:53,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 21:00:53,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:00:53,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143055973] [2024-10-14 21:00:53,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143055973] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 21:00:53,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 21:00:53,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 21:00:53,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348745326] [2024-10-14 21:00:53,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 21:00:53,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 21:00:53,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:00:53,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 21:00:53,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 21:00:53,591 INFO L87 Difference]: Start difference. First operand 80 states and 85 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 21:00:53,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:00:53,659 INFO L93 Difference]: Finished difference Result 82 states and 87 transitions. [2024-10-14 21:00:53,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 21:00:53,659 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-10-14 21:00:53,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:00:53,660 INFO L225 Difference]: With dead ends: 82 [2024-10-14 21:00:53,660 INFO L226 Difference]: Without dead ends: 81 [2024-10-14 21:00:53,660 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 21:00:53,661 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 0 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 21:00:53,662 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 61 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 21:00:53,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-10-14 21:00:53,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2024-10-14 21:00:53,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 56 states have (on average 1.4642857142857142) internal successors, (82), 77 states have internal predecessors, (82), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 21:00:53,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 86 transitions. [2024-10-14 21:00:53,670 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 86 transitions. Word has length 25 [2024-10-14 21:00:53,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:00:53,670 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 86 transitions. [2024-10-14 21:00:53,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 21:00:53,670 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 86 transitions. [2024-10-14 21:00:53,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-10-14 21:00:53,671 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:00:53,671 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 21:00:53,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 21:00:53,673 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-14 21:00:53,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:00:53,674 INFO L85 PathProgramCache]: Analyzing trace with hash 685310549, now seen corresponding path program 1 times [2024-10-14 21:00:53,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:00:53,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901742714] [2024-10-14 21:00:53,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:00:53,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:00:53,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:53,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 21:00:53,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:53,770 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 21:00:53,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:00:53,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901742714] [2024-10-14 21:00:53,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901742714] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 21:00:53,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1452119907] [2024-10-14 21:00:53,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:00:53,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:00:53,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 21:00:53,773 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 21:00:53,774 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 21:00:53,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:53,815 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 21:00:53,817 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 21:00:53,912 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 21:00:53,913 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 21:00:53,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1452119907] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 21:00:53,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 21:00:53,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-10-14 21:00:53,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779105084] [2024-10-14 21:00:53,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 21:00:53,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 21:00:53,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:00:53,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 21:00:53,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-14 21:00:53,915 INFO L87 Difference]: Start difference. First operand 81 states and 86 transitions. Second operand has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 21:00:53,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:00:53,936 INFO L93 Difference]: Finished difference Result 81 states and 86 transitions. [2024-10-14 21:00:53,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 21:00:53,937 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2024-10-14 21:00:53,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:00:53,938 INFO L225 Difference]: With dead ends: 81 [2024-10-14 21:00:53,938 INFO L226 Difference]: Without dead ends: 80 [2024-10-14 21:00:53,938 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-10-14 21:00:53,939 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 35 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 21:00:53,939 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 96 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 21:00:53,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-10-14 21:00:53,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2024-10-14 21:00:53,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 56 states have (on average 1.4464285714285714) internal successors, (81), 76 states have internal predecessors, (81), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 21:00:53,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 85 transitions. [2024-10-14 21:00:53,944 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 85 transitions. Word has length 27 [2024-10-14 21:00:53,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:00:53,944 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 85 transitions. [2024-10-14 21:00:53,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 21:00:53,945 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 85 transitions. [2024-10-14 21:00:53,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-10-14 21:00:53,945 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:00:53,945 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 21:00:53,961 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-14 21:00:54,146 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,SelfDestructingSolverStorable10 [2024-10-14 21:00:54,146 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-14 21:00:54,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:00:54,147 INFO L85 PathProgramCache]: Analyzing trace with hash -230209420, now seen corresponding path program 1 times [2024-10-14 21:00:54,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:00:54,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113485465] [2024-10-14 21:00:54,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:00:54,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:00:54,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:54,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 21:00:54,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:54,233 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 21:00:54,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:00:54,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113485465] [2024-10-14 21:00:54,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113485465] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 21:00:54,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [254958407] [2024-10-14 21:00:54,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:00:54,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:00:54,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 21:00:54,236 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 21:00:54,238 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 21:00:54,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:54,281 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 21:00:54,282 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 21:00:54,350 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 21:00:54,351 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 21:00:54,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [254958407] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 21:00:54,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 21:00:54,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-10-14 21:00:54,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965182528] [2024-10-14 21:00:54,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 21:00:54,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 21:00:54,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:00:54,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 21:00:54,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-14 21:00:54,354 INFO L87 Difference]: Start difference. First operand 80 states and 85 transitions. Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 21:00:54,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:00:54,392 INFO L93 Difference]: Finished difference Result 87 states and 88 transitions. [2024-10-14 21:00:54,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 21:00:54,393 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2024-10-14 21:00:54,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:00:54,394 INFO L225 Difference]: With dead ends: 87 [2024-10-14 21:00:54,394 INFO L226 Difference]: Without dead ends: 86 [2024-10-14 21:00:54,394 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-10-14 21:00:54,395 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 30 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 21:00:54,395 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 192 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 21:00:54,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-10-14 21:00:54,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 79. [2024-10-14 21:00:54,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 56 states have (on average 1.4285714285714286) internal successors, (80), 75 states have internal predecessors, (80), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 21:00:54,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 84 transitions. [2024-10-14 21:00:54,400 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 84 transitions. Word has length 28 [2024-10-14 21:00:54,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:00:54,400 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 84 transitions. [2024-10-14 21:00:54,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 21:00:54,401 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 84 transitions. [2024-10-14 21:00:54,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-10-14 21:00:54,405 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:00:54,405 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 21:00:54,421 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-14 21:00:54,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:00:54,606 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-14 21:00:54,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:00:54,606 INFO L85 PathProgramCache]: Analyzing trace with hash 893986236, now seen corresponding path program 1 times [2024-10-14 21:00:54,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:00:54,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629797076] [2024-10-14 21:00:54,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:00:54,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:00:54,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 21:00:54,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1777414427] [2024-10-14 21:00:54,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:00:54,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:00:54,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 21:00:54,619 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 21:00:54,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-14 21:00:54,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:54,660 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 21:00:54,661 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 21:00:54,714 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 21:00:54,716 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 21:00:54,802 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 21:00:54,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:00:54,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629797076] [2024-10-14 21:00:54,802 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 21:00:54,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1777414427] [2024-10-14 21:00:54,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1777414427] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 21:00:54,803 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-14 21:00:54,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2024-10-14 21:00:54,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74704491] [2024-10-14 21:00:54,803 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-14 21:00:54,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 21:00:54,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:00:54,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 21:00:54,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 21:00:54,805 INFO L87 Difference]: Start difference. First operand 79 states and 84 transitions. Second operand has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 21:00:54,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:00:54,967 INFO L93 Difference]: Finished difference Result 169 states and 213 transitions. [2024-10-14 21:00:54,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 21:00:54,968 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 31 [2024-10-14 21:00:54,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:00:54,971 INFO L225 Difference]: With dead ends: 169 [2024-10-14 21:00:54,971 INFO L226 Difference]: Without dead ends: 165 [2024-10-14 21:00:54,972 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-10-14 21:00:54,972 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 95 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 21:00:54,972 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 119 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 21:00:54,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2024-10-14 21:00:54,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 125. [2024-10-14 21:00:54,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 102 states have (on average 1.4509803921568627) internal successors, (148), 119 states have internal predecessors, (148), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 21:00:54,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 156 transitions. [2024-10-14 21:00:54,985 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 156 transitions. Word has length 31 [2024-10-14 21:00:54,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:00:54,985 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 156 transitions. [2024-10-14 21:00:54,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 21:00:54,986 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 156 transitions. [2024-10-14 21:00:54,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-10-14 21:00:54,989 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:00:54,989 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 21:00:55,006 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-14 21:00:55,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:00:55,190 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-14 21:00:55,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:00:55,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1943769592, now seen corresponding path program 1 times [2024-10-14 21:00:55,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:00:55,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648092623] [2024-10-14 21:00:55,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:00:55,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:00:55,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:55,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 21:00:55,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:55,273 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 21:00:55,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:00:55,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648092623] [2024-10-14 21:00:55,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648092623] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 21:00:55,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [539641803] [2024-10-14 21:00:55,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:00:55,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:00:55,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 21:00:55,276 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 21:00:55,280 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-14 21:00:55,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:55,322 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 21:00:55,323 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 21:00:55,421 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 21:00:55,422 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 21:00:55,487 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 21:00:55,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [539641803] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 21:00:55,488 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 21:00:55,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-10-14 21:00:55,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330038280] [2024-10-14 21:00:55,488 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 21:00:55,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 21:00:55,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:00:55,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 21:00:55,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-10-14 21:00:55,490 INFO L87 Difference]: Start difference. First operand 125 states and 156 transitions. Second operand has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 10 states have internal predecessors, (77), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 21:00:55,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:00:55,596 INFO L93 Difference]: Finished difference Result 125 states and 156 transitions. [2024-10-14 21:00:55,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 21:00:55,596 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 10 states have internal predecessors, (77), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 32 [2024-10-14 21:00:55,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:00:55,597 INFO L225 Difference]: With dead ends: 125 [2024-10-14 21:00:55,597 INFO L226 Difference]: Without dead ends: 122 [2024-10-14 21:00:55,598 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-10-14 21:00:55,598 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 103 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 21:00:55,599 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 65 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 21:00:55,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-10-14 21:00:55,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2024-10-14 21:00:55,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 102 states have (on average 1.3823529411764706) internal successors, (141), 116 states have internal predecessors, (141), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 21:00:55,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 149 transitions. [2024-10-14 21:00:55,605 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 149 transitions. Word has length 32 [2024-10-14 21:00:55,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:00:55,605 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 149 transitions. [2024-10-14 21:00:55,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 10 states have internal predecessors, (77), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 21:00:55,606 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 149 transitions. [2024-10-14 21:00:55,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-10-14 21:00:55,606 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:00:55,606 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 21:00:55,623 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-14 21:00:55,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-14 21:00:55,807 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-14 21:00:55,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:00:55,808 INFO L85 PathProgramCache]: Analyzing trace with hash 127315262, now seen corresponding path program 1 times [2024-10-14 21:00:55,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:00:55,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048568727] [2024-10-14 21:00:55,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:00:55,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:00:55,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:55,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 21:00:55,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:55,879 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 21:00:55,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:00:55,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048568727] [2024-10-14 21:00:55,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048568727] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 21:00:55,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1347630198] [2024-10-14 21:00:55,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:00:55,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:00:55,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 21:00:55,881 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 21:00:55,882 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-14 21:00:55,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:55,918 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 21:00:55,919 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 21:00:56,022 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 21:00:56,023 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 21:00:56,092 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 21:00:56,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1347630198] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 21:00:56,093 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 21:00:56,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-10-14 21:00:56,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681581893] [2024-10-14 21:00:56,093 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 21:00:56,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 21:00:56,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:00:56,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 21:00:56,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2024-10-14 21:00:56,095 INFO L87 Difference]: Start difference. First operand 122 states and 149 transitions. Second operand has 10 states, 9 states have (on average 8.777777777777779) internal successors, (79), 10 states have internal predecessors, (79), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 21:00:56,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:00:56,245 INFO L93 Difference]: Finished difference Result 145 states and 174 transitions. [2024-10-14 21:00:56,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 21:00:56,245 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.777777777777779) internal successors, (79), 10 states have internal predecessors, (79), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 33 [2024-10-14 21:00:56,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:00:56,246 INFO L225 Difference]: With dead ends: 145 [2024-10-14 21:00:56,246 INFO L226 Difference]: Without dead ends: 138 [2024-10-14 21:00:56,247 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2024-10-14 21:00:56,247 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 66 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 21:00:56,247 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 121 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 21:00:56,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2024-10-14 21:00:56,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 122. [2024-10-14 21:00:56,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 106 states have (on average 1.2452830188679245) internal successors, (132), 116 states have internal predecessors, (132), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 21:00:56,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 140 transitions. [2024-10-14 21:00:56,253 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 140 transitions. Word has length 33 [2024-10-14 21:00:56,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:00:56,255 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 140 transitions. [2024-10-14 21:00:56,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.777777777777779) internal successors, (79), 10 states have internal predecessors, (79), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 21:00:56,255 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 140 transitions. [2024-10-14 21:00:56,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-10-14 21:00:56,256 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:00:56,256 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 21:00:56,272 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-14 21:00:56,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-10-14 21:00:56,461 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-14 21:00:56,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:00:56,461 INFO L85 PathProgramCache]: Analyzing trace with hash 2090884288, now seen corresponding path program 1 times [2024-10-14 21:00:56,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:00:56,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86138574] [2024-10-14 21:00:56,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:00:56,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:00:56,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:56,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 21:00:56,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:56,566 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 21:00:56,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:00:56,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86138574] [2024-10-14 21:00:56,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86138574] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 21:00:56,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [951047440] [2024-10-14 21:00:56,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:00:56,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:00:56,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 21:00:56,569 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 21:00:56,570 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-14 21:00:56,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:56,609 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-14 21:00:56,610 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 21:00:56,763 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 21:00:56,763 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 21:00:56,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [951047440] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 21:00:56,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 21:00:56,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2024-10-14 21:00:56,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836755869] [2024-10-14 21:00:56,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 21:00:56,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 21:00:56,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:00:56,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 21:00:56,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-10-14 21:00:56,765 INFO L87 Difference]: Start difference. First operand 122 states and 140 transitions. Second operand has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 21:00:56,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:00:56,834 INFO L93 Difference]: Finished difference Result 122 states and 140 transitions. [2024-10-14 21:00:56,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 21:00:56,834 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2024-10-14 21:00:56,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:00:56,835 INFO L225 Difference]: With dead ends: 122 [2024-10-14 21:00:56,835 INFO L226 Difference]: Without dead ends: 104 [2024-10-14 21:00:56,836 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-10-14 21:00:56,836 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 36 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 21:00:56,836 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 47 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 21:00:56,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-10-14 21:00:56,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2024-10-14 21:00:56,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 92 states have (on average 1.141304347826087) internal successors, (105), 98 states have internal predecessors, (105), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 21:00:56,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 113 transitions. [2024-10-14 21:00:56,842 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 113 transitions. Word has length 35 [2024-10-14 21:00:56,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:00:56,842 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 113 transitions. [2024-10-14 21:00:56,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 21:00:56,842 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 113 transitions. [2024-10-14 21:00:56,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-10-14 21:00:56,843 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:00:56,843 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 21:00:56,859 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-14 21:00:57,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:00:57,048 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-14 21:00:57,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:00:57,048 INFO L85 PathProgramCache]: Analyzing trace with hash 579977568, now seen corresponding path program 1 times [2024-10-14 21:00:57,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:00:57,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217844062] [2024-10-14 21:00:57,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:00:57,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:00:57,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:57,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 21:00:57,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:57,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-14 21:00:57,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:57,096 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 21:00:57,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:00:57,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217844062] [2024-10-14 21:00:57,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217844062] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 21:00:57,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1471357840] [2024-10-14 21:00:57,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:00:57,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:00:57,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 21:00:57,099 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 21:00:57,100 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-14 21:00:57,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:57,139 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 21:00:57,140 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 21:00:57,187 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 21:00:57,188 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 21:00:57,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1471357840] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 21:00:57,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 21:00:57,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-10-14 21:00:57,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305270650] [2024-10-14 21:00:57,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 21:00:57,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 21:00:57,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:00:57,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 21:00:57,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 21:00:57,189 INFO L87 Difference]: Start difference. First operand 104 states and 113 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 21:00:57,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:00:57,208 INFO L93 Difference]: Finished difference Result 104 states and 113 transitions. [2024-10-14 21:00:57,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 21:00:57,209 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2024-10-14 21:00:57,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:00:57,210 INFO L225 Difference]: With dead ends: 104 [2024-10-14 21:00:57,210 INFO L226 Difference]: Without dead ends: 103 [2024-10-14 21:00:57,210 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 21:00:57,211 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 19 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 21:00:57,212 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 61 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 21:00:57,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-10-14 21:00:57,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2024-10-14 21:00:57,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 92 states have (on average 1.108695652173913) internal successors, (102), 97 states have internal predecessors, (102), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 21:00:57,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 110 transitions. [2024-10-14 21:00:57,219 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 110 transitions. Word has length 44 [2024-10-14 21:00:57,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:00:57,219 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 110 transitions. [2024-10-14 21:00:57,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 21:00:57,219 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 110 transitions. [2024-10-14 21:00:57,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-10-14 21:00:57,221 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:00:57,222 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 21:00:57,238 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-14 21:00:57,423 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,SelfDestructingSolverStorable16 [2024-10-14 21:00:57,423 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-14 21:00:57,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:00:57,424 INFO L85 PathProgramCache]: Analyzing trace with hash 799435496, now seen corresponding path program 1 times [2024-10-14 21:00:57,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:00:57,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611257008] [2024-10-14 21:00:57,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:00:57,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:00:57,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:57,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 21:00:57,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:57,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-14 21:00:57,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:57,465 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 21:00:57,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:00:57,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611257008] [2024-10-14 21:00:57,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611257008] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 21:00:57,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [858755357] [2024-10-14 21:00:57,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:00:57,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:00:57,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 21:00:57,467 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 21:00:57,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-14 21:00:57,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:57,518 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 21:00:57,519 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 21:00:57,574 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 21:00:57,574 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 21:00:57,633 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 21:00:57,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [858755357] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 21:00:57,633 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 21:00:57,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-10-14 21:00:57,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557639341] [2024-10-14 21:00:57,633 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 21:00:57,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 21:00:57,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:00:57,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 21:00:57,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-14 21:00:57,635 INFO L87 Difference]: Start difference. First operand 103 states and 110 transitions. Second operand has 7 states, 6 states have (on average 14.833333333333334) internal successors, (89), 7 states have internal predecessors, (89), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-14 21:00:57,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:00:57,669 INFO L93 Difference]: Finished difference Result 119 states and 125 transitions. [2024-10-14 21:00:57,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 21:00:57,669 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.833333333333334) internal successors, (89), 7 states have internal predecessors, (89), 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) Word has length 45 [2024-10-14 21:00:57,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:00:57,670 INFO L225 Difference]: With dead ends: 119 [2024-10-14 21:00:57,670 INFO L226 Difference]: Without dead ends: 118 [2024-10-14 21:00:57,671 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-14 21:00:57,671 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 11 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 21:00:57,671 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 151 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 21:00:57,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-10-14 21:00:57,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 113. [2024-10-14 21:00:57,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 101 states have (on average 1.0891089108910892) internal successors, (110), 106 states have internal predecessors, (110), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-14 21:00:57,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 120 transitions. [2024-10-14 21:00:57,679 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 120 transitions. Word has length 45 [2024-10-14 21:00:57,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:00:57,679 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 120 transitions. [2024-10-14 21:00:57,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.833333333333334) internal successors, (89), 7 states have internal predecessors, (89), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-14 21:00:57,680 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 120 transitions. [2024-10-14 21:00:57,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-10-14 21:00:57,680 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:00:57,681 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1] [2024-10-14 21:00:57,697 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-14 21:00:57,881 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,SelfDestructingSolverStorable17 [2024-10-14 21:00:57,882 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-14 21:00:57,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:00:57,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1388648805, now seen corresponding path program 1 times [2024-10-14 21:00:57,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:00:57,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033038395] [2024-10-14 21:00:57,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:00:57,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:00:57,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:58,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 21:00:58,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:58,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-14 21:00:58,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:58,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 21:00:58,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:58,034 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 21:00:58,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:00:58,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033038395] [2024-10-14 21:00:58,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033038395] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 21:00:58,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [51889036] [2024-10-14 21:00:58,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:00:58,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:00:58,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 21:00:58,037 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 21:00:58,038 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-14 21:00:58,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:58,086 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-14 21:00:58,088 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 21:00:58,327 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 21:00:58,327 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 21:00:58,510 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 21:00:58,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [51889036] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 21:00:58,510 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 21:00:58,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 19 [2024-10-14 21:00:58,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200897902] [2024-10-14 21:00:58,510 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 21:00:58,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-14 21:00:58,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:00:58,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-14 21:00:58,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=245, Unknown=0, NotChecked=0, Total=380 [2024-10-14 21:00:58,512 INFO L87 Difference]: Start difference. First operand 113 states and 120 transitions. Second operand has 20 states, 19 states have (on average 9.31578947368421) internal successors, (177), 20 states have internal predecessors, (177), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-14 21:00:58,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:00:58,789 INFO L93 Difference]: Finished difference Result 170 states and 189 transitions. [2024-10-14 21:00:58,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 21:00:58,790 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 9.31578947368421) internal successors, (177), 20 states have internal predecessors, (177), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Word has length 73 [2024-10-14 21:00:58,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:00:58,791 INFO L225 Difference]: With dead ends: 170 [2024-10-14 21:00:58,791 INFO L226 Difference]: Without dead ends: 169 [2024-10-14 21:00:58,791 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=235, Invalid=415, Unknown=0, NotChecked=0, Total=650 [2024-10-14 21:00:58,792 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 33 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 21:00:58,792 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 139 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 21:00:58,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2024-10-14 21:00:58,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 157. [2024-10-14 21:00:58,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 143 states have (on average 1.1118881118881119) internal successors, (159), 148 states have internal predecessors, (159), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-10-14 21:00:58,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 173 transitions. [2024-10-14 21:00:58,800 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 173 transitions. Word has length 73 [2024-10-14 21:00:58,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:00:58,800 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 173 transitions. [2024-10-14 21:00:58,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 9.31578947368421) internal successors, (177), 20 states have internal predecessors, (177), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-14 21:00:58,800 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 173 transitions. [2024-10-14 21:00:58,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-14 21:00:58,801 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:00:58,801 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1] [2024-10-14 21:00:58,819 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-10-14 21:00:59,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:00:59,002 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-14 21:00:59,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:00:59,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1188030000, now seen corresponding path program 2 times [2024-10-14 21:00:59,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:00:59,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14763281] [2024-10-14 21:00:59,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:00:59,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:00:59,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:59,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 21:00:59,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:59,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-14 21:00:59,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:59,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 21:00:59,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:59,171 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 21:00:59,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:00:59,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14763281] [2024-10-14 21:00:59,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14763281] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 21:00:59,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1133744063] [2024-10-14 21:00:59,173 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 21:00:59,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:00:59,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 21:00:59,174 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 21:00:59,176 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-14 21:00:59,226 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-14 21:00:59,226 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 21:00:59,227 INFO L255 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-14 21:00:59,229 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 21:00:59,472 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 21:00:59,472 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 21:00:59,655 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 21:00:59,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1133744063] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 21:00:59,655 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 21:00:59,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 21 [2024-10-14 21:00:59,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342920332] [2024-10-14 21:00:59,656 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 21:00:59,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-10-14 21:00:59,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:00:59,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-10-14 21:00:59,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=308, Unknown=0, NotChecked=0, Total=462 [2024-10-14 21:00:59,658 INFO L87 Difference]: Start difference. First operand 157 states and 173 transitions. Second operand has 22 states, 21 states have (on average 9.19047619047619) internal successors, (193), 22 states have internal predecessors, (193), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-14 21:00:59,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:00:59,975 INFO L93 Difference]: Finished difference Result 185 states and 201 transitions. [2024-10-14 21:00:59,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 21:00:59,976 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 9.19047619047619) internal successors, (193), 22 states have internal predecessors, (193), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Word has length 81 [2024-10-14 21:00:59,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:00:59,977 INFO L225 Difference]: With dead ends: 185 [2024-10-14 21:00:59,977 INFO L226 Difference]: Without dead ends: 173 [2024-10-14 21:00:59,977 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=304, Invalid=566, Unknown=0, NotChecked=0, Total=870 [2024-10-14 21:00:59,978 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 120 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 21:00:59,978 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 141 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 21:00:59,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-10-14 21:00:59,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 165. [2024-10-14 21:00:59,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 151 states have (on average 1.0927152317880795) internal successors, (165), 156 states have internal predecessors, (165), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-10-14 21:00:59,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 179 transitions. [2024-10-14 21:00:59,987 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 179 transitions. Word has length 81 [2024-10-14 21:00:59,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:00:59,987 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 179 transitions. [2024-10-14 21:00:59,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 9.19047619047619) internal successors, (193), 22 states have internal predecessors, (193), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-14 21:00:59,988 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 179 transitions. [2024-10-14 21:00:59,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-10-14 21:00:59,988 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:00:59,988 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1] [2024-10-14 21:01:00,001 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-10-14 21:01:00,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:01:00,189 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-14 21:01:00,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:01:00,190 INFO L85 PathProgramCache]: Analyzing trace with hash 633606503, now seen corresponding path program 2 times [2024-10-14 21:01:00,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:01:00,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335291463] [2024-10-14 21:01:00,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:01:00,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:01:00,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 21:01:00,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1124042820] [2024-10-14 21:01:00,216 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 21:01:00,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:01:00,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 21:01:00,218 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 21:01:00,220 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-14 21:01:00,276 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-14 21:01:00,276 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 21:01:00,279 INFO L255 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-14 21:01:00,281 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 21:01:00,398 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-14 21:01:00,398 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 21:01:00,631 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-14 21:01:00,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:01:00,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335291463] [2024-10-14 21:01:00,632 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 21:01:00,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1124042820] [2024-10-14 21:01:00,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1124042820] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 21:01:00,632 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-14 21:01:00,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-10-14 21:01:00,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811532691] [2024-10-14 21:01:00,633 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-14 21:01:00,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 21:01:00,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:01:00,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 21:01:00,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-10-14 21:01:00,635 INFO L87 Difference]: Start difference. First operand 165 states and 179 transitions. Second operand has 12 states, 11 states have (on average 15.363636363636363) internal successors, (169), 12 states have internal predecessors, (169), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 21:01:00,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:01:00,962 INFO L93 Difference]: Finished difference Result 248 states and 271 transitions. [2024-10-14 21:01:00,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-14 21:01:00,963 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 15.363636363636363) internal successors, (169), 12 states have internal predecessors, (169), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 103 [2024-10-14 21:01:00,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:01:00,964 INFO L225 Difference]: With dead ends: 248 [2024-10-14 21:01:00,964 INFO L226 Difference]: Without dead ends: 240 [2024-10-14 21:01:00,964 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2024-10-14 21:01:00,965 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 149 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 21:01:00,965 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 356 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 21:01:00,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2024-10-14 21:01:00,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 223. [2024-10-14 21:01:00,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 206 states have (on average 1.0922330097087378) internal successors, (225), 211 states have internal predecessors, (225), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-14 21:01:00,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 245 transitions. [2024-10-14 21:01:00,975 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 245 transitions. Word has length 103 [2024-10-14 21:01:00,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:01:00,976 INFO L471 AbstractCegarLoop]: Abstraction has 223 states and 245 transitions. [2024-10-14 21:01:00,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 15.363636363636363) internal successors, (169), 12 states have internal predecessors, (169), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 21:01:00,976 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 245 transitions. [2024-10-14 21:01:00,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-10-14 21:01:00,977 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:01:00,977 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1] [2024-10-14 21:01:00,993 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-10-14 21:01:01,181 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,SelfDestructingSolverStorable20 [2024-10-14 21:01:01,182 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-14 21:01:01,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:01:01,182 INFO L85 PathProgramCache]: Analyzing trace with hash 851054419, now seen corresponding path program 2 times [2024-10-14 21:01:01,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:01:01,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780232579] [2024-10-14 21:01:01,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:01:01,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:01:01,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:01:01,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 21:01:01,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:01:01,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-14 21:01:01,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:01:01,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 21:01:01,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:01:01,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-14 21:01:01,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:01:01,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-14 21:01:01,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:01:01,265 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2024-10-14 21:01:01,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:01:01,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780232579] [2024-10-14 21:01:01,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780232579] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 21:01:01,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1135837264] [2024-10-14 21:01:01,266 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 21:01:01,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:01:01,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 21:01:01,270 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 21:01:01,271 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-14 21:01:01,309 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-14 21:01:01,310 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 21:01:01,310 INFO L255 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 21:01:01,312 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 21:01:01,429 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2024-10-14 21:01:01,429 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 21:01:01,557 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2024-10-14 21:01:01,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1135837264] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 21:01:01,557 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 21:01:01,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-10-14 21:01:01,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910447483] [2024-10-14 21:01:01,558 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 21:01:01,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 21:01:01,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:01:01,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 21:01:01,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-14 21:01:01,559 INFO L87 Difference]: Start difference. First operand 223 states and 245 transitions. Second operand has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 21:01:01,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:01:01,588 INFO L93 Difference]: Finished difference Result 223 states and 245 transitions. [2024-10-14 21:01:01,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 21:01:01,588 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 117 [2024-10-14 21:01:01,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:01:01,589 INFO L225 Difference]: With dead ends: 223 [2024-10-14 21:01:01,589 INFO L226 Difference]: Without dead ends: 222 [2024-10-14 21:01:01,590 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-10-14 21:01:01,590 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 58 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 21:01:01,590 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 67 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 21:01:01,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2024-10-14 21:01:01,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 222. [2024-10-14 21:01:01,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 206 states have (on average 1.0631067961165048) internal successors, (219), 210 states have internal predecessors, (219), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-14 21:01:01,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 239 transitions. [2024-10-14 21:01:01,604 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 239 transitions. Word has length 117 [2024-10-14 21:01:01,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:01:01,604 INFO L471 AbstractCegarLoop]: Abstraction has 222 states and 239 transitions. [2024-10-14 21:01:01,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 21:01:01,604 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 239 transitions. [2024-10-14 21:01:01,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-10-14 21:01:01,606 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:01:01,606 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 1, 1] [2024-10-14 21:01:01,623 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-10-14 21:01:01,807 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,SelfDestructingSolverStorable21 [2024-10-14 21:01:01,807 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-14 21:01:01,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:01:01,807 INFO L85 PathProgramCache]: Analyzing trace with hash 913861449, now seen corresponding path program 2 times [2024-10-14 21:01:01,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:01:01,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185800000] [2024-10-14 21:01:01,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:01:01,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:01:01,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:01:02,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 21:01:02,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:01:02,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-14 21:01:02,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:01:02,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 21:01:02,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:01:02,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-14 21:01:02,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:01:02,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-14 21:01:02,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:01:02,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-14 21:01:02,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:01:02,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-14 21:01:02,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:01:02,188 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 0 proven. 420 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-10-14 21:01:02,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:01:02,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185800000] [2024-10-14 21:01:02,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185800000] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 21:01:02,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [438007330] [2024-10-14 21:01:02,189 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 21:01:02,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:01:02,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 21:01:02,191 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 21:01:02,192 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-10-14 21:01:02,235 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-14 21:01:02,236 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 21:01:02,236 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-14 21:01:02,238 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 21:01:02,425 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2024-10-14 21:01:02,425 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 21:01:02,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [438007330] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 21:01:02,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 21:01:02,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [15] total 20 [2024-10-14 21:01:02,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515909873] [2024-10-14 21:01:02,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 21:01:02,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 21:01:02,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:01:02,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 21:01:02,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2024-10-14 21:01:02,426 INFO L87 Difference]: Start difference. First operand 222 states and 239 transitions. Second operand has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 7 states have internal predecessors, (38), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 21:01:02,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:01:02,517 INFO L93 Difference]: Finished difference Result 224 states and 241 transitions. [2024-10-14 21:01:02,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 21:01:02,518 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 7 states have internal predecessors, (38), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 169 [2024-10-14 21:01:02,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:01:02,519 INFO L225 Difference]: With dead ends: 224 [2024-10-14 21:01:02,519 INFO L226 Difference]: Without dead ends: 223 [2024-10-14 21:01:02,519 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=407, Unknown=0, NotChecked=0, Total=462 [2024-10-14 21:01:02,520 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 25 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 21:01:02,520 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 68 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 21:01:02,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2024-10-14 21:01:02,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 221. [2024-10-14 21:01:02,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 206 states have (on average 1.0436893203883495) internal successors, (215), 209 states have internal predecessors, (215), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-14 21:01:02,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 235 transitions. [2024-10-14 21:01:02,531 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 235 transitions. Word has length 169 [2024-10-14 21:01:02,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:01:02,532 INFO L471 AbstractCegarLoop]: Abstraction has 221 states and 235 transitions. [2024-10-14 21:01:02,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 7 states have internal predecessors, (38), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 21:01:02,532 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 235 transitions. [2024-10-14 21:01:02,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-10-14 21:01:02,533 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:01:02,534 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1] [2024-10-14 21:01:02,551 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-10-14 21:01:02,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:01:02,734 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-14 21:01:02,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:01:02,735 INFO L85 PathProgramCache]: Analyzing trace with hash 2073367572, now seen corresponding path program 3 times [2024-10-14 21:01:02,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:01:02,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627165475] [2024-10-14 21:01:02,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:01:02,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:01:02,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:01:03,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 21:01:03,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:01:03,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-14 21:01:03,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:01:03,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 21:01:03,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:01:03,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-14 21:01:03,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:01:03,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-14 21:01:03,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:01:03,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-14 21:01:03,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:01:03,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-14 21:01:03,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:01:03,184 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 0 proven. 476 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-10-14 21:01:03,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:01:03,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627165475] [2024-10-14 21:01:03,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627165475] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 21:01:03,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [463216270] [2024-10-14 21:01:03,185 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-14 21:01:03,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:01:03,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 21:01:03,187 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 21:01:03,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-10-14 21:01:03,237 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-14 21:01:03,238 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 21:01:03,238 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-14 21:01:03,241 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 21:02:01,980 WARN L873 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~y~0#1| Int)) (let ((.cse0 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|))) (and (<= .cse0 9223372036854775807) (<= |c_ULTIMATE.start_main_~x~0#1| (+ |ULTIMATE.start_main_~y~0#1| (div (+ (* (- 1) |ULTIMATE.start_main_~y~0#1|) .cse0) 2)))))) is different from true [2024-10-14 21:02:01,993 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2024-10-14 21:02:01,993 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 21:02:01,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [463216270] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 21:02:01,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 21:02:01,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [16] total 23 [2024-10-14 21:02:01,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147983703] [2024-10-14 21:02:01,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 21:02:01,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 21:02:01,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:02:01,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 21:02:01,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=432, Unknown=8, NotChecked=42, Total=552 [2024-10-14 21:02:01,995 INFO L87 Difference]: Start difference. First operand 221 states and 235 transitions. Second operand has 9 states, 8 states have (on average 5.75) internal successors, (46), 9 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 21:02:06,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-14 21:02:25,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:02:25,028 INFO L93 Difference]: Finished difference Result 223 states and 237 transitions. [2024-10-14 21:02:25,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-14 21:02:25,029 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.75) internal successors, (46), 9 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 177 [2024-10-14 21:02:25,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:02:25,030 INFO L225 Difference]: With dead ends: 223 [2024-10-14 21:02:25,030 INFO L226 Difference]: Without dead ends: 217 [2024-10-14 21:02:25,031 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 184 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 51.5s TimeCoverageRelationStatistics Valid=123, Invalid=683, Unknown=10, NotChecked=54, Total=870 [2024-10-14 21:02:25,031 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 65 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 50 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-10-14 21:02:25,032 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 38 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 98 Invalid, 1 Unknown, 50 Unchecked, 5.2s Time] [2024-10-14 21:02:25,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2024-10-14 21:02:25,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 215. [2024-10-14 21:02:25,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 202 states have (on average 1.00990099009901) internal successors, (204), 203 states have internal predecessors, (204), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-14 21:02:25,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 224 transitions. [2024-10-14 21:02:25,048 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 224 transitions. Word has length 177 [2024-10-14 21:02:25,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:02:25,049 INFO L471 AbstractCegarLoop]: Abstraction has 215 states and 224 transitions. [2024-10-14 21:02:25,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.75) internal successors, (46), 9 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 21:02:25,049 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 224 transitions. [2024-10-14 21:02:25,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2024-10-14 21:02:25,051 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:02:25,051 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1] [2024-10-14 21:02:25,067 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-10-14 21:02:25,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:02:25,256 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-14 21:02:25,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:02:25,256 INFO L85 PathProgramCache]: Analyzing trace with hash -2093625411, now seen corresponding path program 3 times [2024-10-14 21:02:25,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:02:25,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817317934] [2024-10-14 21:02:25,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:02:25,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:02:25,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 21:02:25,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [609360127] [2024-10-14 21:02:25,311 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-14 21:02:25,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:02:25,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 21:02:25,313 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 21:02:25,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-10-14 21:02:25,460 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-10-14 21:02:25,460 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 21:02:25,462 INFO L255 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-10-14 21:02:25,465 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 21:02:29,050 INFO L134 CoverageAnalysis]: Checked inductivity of 1140 backedges. 0 proven. 960 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-10-14 21:02:29,050 INFO L311 TraceCheckSpWp]: Computing backward predicates...