./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 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/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-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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-dev-84cfde4 [2024-10-11 21:03:46,940 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 21:03:47,007 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-11 21:03:47,012 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 21:03:47,014 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 21:03:47,046 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 21:03:47,047 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 21:03:47,048 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 21:03:47,049 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 21:03:47,052 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 21:03:47,052 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 21:03:47,053 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 21:03:47,053 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 21:03:47,053 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 21:03:47,054 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 21:03:47,054 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 21:03:47,054 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 21:03:47,055 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 21:03:47,056 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 21:03:47,056 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 21:03:47,056 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 21:03:47,063 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 21:03:47,063 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 21:03:47,063 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 21:03:47,064 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 21:03:47,064 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-11 21:03:47,064 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 21:03:47,064 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 21:03:47,065 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 21:03:47,065 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 21:03:47,066 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 21:03:47,066 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 21:03:47,066 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 21:03:47,067 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 21:03:47,067 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 21:03:47,067 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 21:03:47,068 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 21:03:47,068 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 21:03:47,068 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 21:03:47,068 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 21:03:47,068 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 21:03:47,069 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 21:03:47,069 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 21:03:47,069 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 21:03:47,070 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d25bbd57503ddf7114a4e56e0d2f1aa1d87b632e5d2d981ebfe6e2db50f2e17b [2024-10-11 21:03:47,305 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 21:03:47,324 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 21:03:47,329 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 21:03:47,330 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 21:03:47,330 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 21:03:47,331 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound20.c [2024-10-11 21:03:48,698 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 21:03:48,876 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 21:03:48,876 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound20.c [2024-10-11 21:03:48,884 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/20fa7ab66/2245a6b015f74e56b77870c3f27631af/FLAG7d6fbc977 [2024-10-11 21:03:49,268 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/20fa7ab66/2245a6b015f74e56b77870c3f27631af [2024-10-11 21:03:49,270 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 21:03:49,271 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 21:03:49,274 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 21:03:49,274 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 21:03:49,279 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 21:03:49,280 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 09:03:49" (1/1) ... [2024-10-11 21:03:49,282 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2997af73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:03:49, skipping insertion in model container [2024-10-11 21:03:49,283 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 09:03:49" (1/1) ... [2024-10-11 21:03:49,301 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 21:03:49,478 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 21:03:49,492 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 21:03:49,511 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 21:03:49,528 INFO L204 MainTranslator]: Completed translation [2024-10-11 21:03:49,529 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:03:49 WrapperNode [2024-10-11 21:03:49,529 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 21:03:49,530 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 21:03:49,530 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 21:03:49,530 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 21:03:49,538 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:03:49" (1/1) ... [2024-10-11 21:03:49,543 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:03:49" (1/1) ... [2024-10-11 21:03:49,557 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 68 [2024-10-11 21:03:49,558 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 21:03:49,558 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 21:03:49,558 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 21:03:49,558 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 21:03:49,568 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:03:49" (1/1) ... [2024-10-11 21:03:49,569 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:03:49" (1/1) ... [2024-10-11 21:03:49,570 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:03:49" (1/1) ... [2024-10-11 21:03:49,596 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]. [2024-10-11 21:03:49,596 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:03:49" (1/1) ... [2024-10-11 21:03:49,597 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:03:49" (1/1) ... [2024-10-11 21:03:49,599 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:03:49" (1/1) ... [2024-10-11 21:03:49,602 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:03:49" (1/1) ... [2024-10-11 21:03:49,602 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:03:49" (1/1) ... [2024-10-11 21:03:49,603 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:03:49" (1/1) ... [2024-10-11 21:03:49,605 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 21:03:49,605 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 21:03:49,606 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 21:03:49,606 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 21:03:49,607 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:03:49" (1/1) ... [2024-10-11 21:03:49,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 21:03:49,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:03:49,636 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 21:03:49,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 21:03:49,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 21:03:49,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 21:03:49,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 21:03:49,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 21:03:49,683 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-11 21:03:49,683 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-11 21:03:49,736 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 21:03:49,738 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 21:03:49,929 INFO L? ?]: Removed 38 outVars from TransFormulas that were not future-live. [2024-10-11 21:03:49,929 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 21:03:49,970 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 21:03:49,970 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-11 21:03:49,971 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 09:03:49 BoogieIcfgContainer [2024-10-11 21:03:49,971 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 21:03:49,973 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 21:03:49,973 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 21:03:49,978 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 21:03:49,978 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 09:03:49" (1/3) ... [2024-10-11 21:03:49,979 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@394af0a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 09:03:49, skipping insertion in model container [2024-10-11 21:03:49,980 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:03:49" (2/3) ... [2024-10-11 21:03:49,980 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@394af0a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 09:03:49, skipping insertion in model container [2024-10-11 21:03:49,980 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 09:03:49" (3/3) ... [2024-10-11 21:03:49,982 INFO L112 eAbstractionObserver]: Analyzing ICFG ps2-ll_unwindbound20.c [2024-10-11 21:03:49,999 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 21:03:49,999 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2024-10-11 21:03:50,073 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 21:03:50,081 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;@3733a74, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 21:03:50,082 INFO L334 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2024-10-11 21:03:50,088 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) [2024-10-11 21:03:50,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-10-11 21:03:50,096 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:03:50,096 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-10-11 21:03:50,097 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)] === [2024-10-11 21:03:50,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:03:50,103 INFO L85 PathProgramCache]: Analyzing trace with hash 119869, now seen corresponding path program 1 times [2024-10-11 21:03:50,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:03:50,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191905417] [2024-10-11 21:03:50,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:03:50,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:03:50,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:03:50,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 21:03:50,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:03:50,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191905417] [2024-10-11 21:03:50,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191905417] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 21:03:50,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 21:03:50,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 21:03:50,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118765131] [2024-10-11 21:03:50,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 21:03:50,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 21:03:50,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:03:50,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 21:03:50,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 21:03:50,277 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) [2024-10-11 21:03:50,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:03:50,319 INFO L93 Difference]: Finished difference Result 117 states and 129 transitions. [2024-10-11 21:03:50,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 21:03:50,322 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 [2024-10-11 21:03:50,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:03:50,328 INFO L225 Difference]: With dead ends: 117 [2024-10-11 21:03:50,329 INFO L226 Difference]: Without dead ends: 55 [2024-10-11 21:03:50,333 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 [2024-10-11 21:03:50,339 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 [2024-10-11 21:03:50,340 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] [2024-10-11 21:03:50,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-10-11 21:03:50,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2024-10-11 21:03:50,373 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) [2024-10-11 21:03:50,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 56 transitions. [2024-10-11 21:03:50,376 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 56 transitions. Word has length 3 [2024-10-11 21:03:50,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:03:50,376 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 56 transitions. [2024-10-11 21:03:50,376 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) [2024-10-11 21:03:50,376 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 56 transitions. [2024-10-11 21:03:50,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-10-11 21:03:50,377 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:03:50,377 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-10-11 21:03:50,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 21:03:50,377 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)] === [2024-10-11 21:03:50,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:03:50,378 INFO L85 PathProgramCache]: Analyzing trace with hash 118428, now seen corresponding path program 1 times [2024-10-11 21:03:50,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:03:50,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475095762] [2024-10-11 21:03:50,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:03:50,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:03:50,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:03:50,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 21:03:50,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:03:50,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475095762] [2024-10-11 21:03:50,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475095762] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 21:03:50,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 21:03:50,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 21:03:50,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795902431] [2024-10-11 21:03:50,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 21:03:50,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 21:03:50,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:03:50,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 21:03:50,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 21:03:50,496 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) [2024-10-11 21:03:50,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:03:50,557 INFO L93 Difference]: Finished difference Result 76 states and 77 transitions. [2024-10-11 21:03:50,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 21:03:50,558 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 [2024-10-11 21:03:50,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:03:50,559 INFO L225 Difference]: With dead ends: 76 [2024-10-11 21:03:50,559 INFO L226 Difference]: Without dead ends: 59 [2024-10-11 21:03:50,560 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 [2024-10-11 21:03:50,561 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 [2024-10-11 21:03:50,562 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] [2024-10-11 21:03:50,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2024-10-11 21:03:50,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2024-10-11 21:03:50,568 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) [2024-10-11 21:03:50,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 60 transitions. [2024-10-11 21:03:50,569 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 60 transitions. Word has length 3 [2024-10-11 21:03:50,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:03:50,569 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 60 transitions. [2024-10-11 21:03:50,570 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) [2024-10-11 21:03:50,570 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 60 transitions. [2024-10-11 21:03:50,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-11 21:03:50,570 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:03:50,570 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:03:50,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 21:03:50,571 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)] === [2024-10-11 21:03:50,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:03:50,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1997829763, now seen corresponding path program 1 times [2024-10-11 21:03:50,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:03:50,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422330157] [2024-10-11 21:03:50,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:03:50,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:03:50,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 21:03:50,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [263211919] [2024-10-11 21:03:50,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:03:50,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:03:50,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:03:50,603 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:03:50,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 21:03:50,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:03:50,650 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 21:03:50,655 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:03:50,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 21:03:50,678 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 21:03:50,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:03:50,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422330157] [2024-10-11 21:03:50,679 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 21:03:50,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [263211919] [2024-10-11 21:03:50,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [263211919] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 21:03:50,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 21:03:50,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 21:03:50,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865238522] [2024-10-11 21:03:50,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 21:03:50,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 21:03:50,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:03:50,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 21:03:50,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 21:03:50,682 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) [2024-10-11 21:03:50,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:03:50,768 INFO L93 Difference]: Finished difference Result 91 states and 101 transitions. [2024-10-11 21:03:50,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 21:03:50,769 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 [2024-10-11 21:03:50,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:03:50,771 INFO L225 Difference]: With dead ends: 91 [2024-10-11 21:03:50,771 INFO L226 Difference]: Without dead ends: 87 [2024-10-11 21:03:50,771 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 [2024-10-11 21:03:50,772 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 [2024-10-11 21:03:50,773 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] [2024-10-11 21:03:50,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-10-11 21:03:50,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 75. [2024-10-11 21:03:50,785 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) [2024-10-11 21:03:50,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 86 transitions. [2024-10-11 21:03:50,801 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 86 transitions. Word has length 7 [2024-10-11 21:03:50,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:03:50,801 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 86 transitions. [2024-10-11 21:03:50,802 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) [2024-10-11 21:03:50,802 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 86 transitions. [2024-10-11 21:03:50,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-11 21:03:50,802 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:03:50,802 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:03:50,815 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-11 21:03:51,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:03:51,003 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)] === [2024-10-11 21:03:51,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:03:51,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1803180561, now seen corresponding path program 1 times [2024-10-11 21:03:51,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:03:51,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753698647] [2024-10-11 21:03:51,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:03:51,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:03:51,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:03:51,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 21:03:51,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:03:51,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753698647] [2024-10-11 21:03:51,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753698647] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 21:03:51,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 21:03:51,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 21:03:51,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106957236] [2024-10-11 21:03:51,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 21:03:51,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 21:03:51,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:03:51,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 21:03:51,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 21:03:51,059 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) [2024-10-11 21:03:51,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:03:51,138 INFO L93 Difference]: Finished difference Result 87 states and 101 transitions. [2024-10-11 21:03:51,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 21:03:51,138 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 [2024-10-11 21:03:51,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:03:51,139 INFO L225 Difference]: With dead ends: 87 [2024-10-11 21:03:51,139 INFO L226 Difference]: Without dead ends: 85 [2024-10-11 21:03:51,139 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 [2024-10-11 21:03:51,140 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 [2024-10-11 21:03:51,141 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] [2024-10-11 21:03:51,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-10-11 21:03:51,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 76. [2024-10-11 21:03:51,151 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) [2024-10-11 21:03:51,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 86 transitions. [2024-10-11 21:03:51,153 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 86 transitions. Word has length 8 [2024-10-11 21:03:51,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:03:51,154 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 86 transitions. [2024-10-11 21:03:51,154 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) [2024-10-11 21:03:51,154 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 86 transitions. [2024-10-11 21:03:51,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-10-11 21:03:51,154 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:03:51,155 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:03:51,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 21:03:51,155 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)] === [2024-10-11 21:03:51,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:03:51,158 INFO L85 PathProgramCache]: Analyzing trace with hash 64022597, now seen corresponding path program 1 times [2024-10-11 21:03:51,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:03:51,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558610298] [2024-10-11 21:03:51,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:03:51,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:03:51,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:03:51,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 21:03:51,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:03:51,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558610298] [2024-10-11 21:03:51,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558610298] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 21:03:51,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 21:03:51,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 21:03:51,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891711976] [2024-10-11 21:03:51,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 21:03:51,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 21:03:51,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:03:51,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 21:03:51,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 21:03:51,220 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) [2024-10-11 21:03:51,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:03:51,291 INFO L93 Difference]: Finished difference Result 91 states and 99 transitions. [2024-10-11 21:03:51,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 21:03:51,292 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 [2024-10-11 21:03:51,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:03:51,293 INFO L225 Difference]: With dead ends: 91 [2024-10-11 21:03:51,294 INFO L226 Difference]: Without dead ends: 85 [2024-10-11 21:03:51,295 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 [2024-10-11 21:03:51,296 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 21 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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 [2024-10-11 21:03:51,296 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] [2024-10-11 21:03:51,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-10-11 21:03:51,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 80. [2024-10-11 21:03:51,302 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) [2024-10-11 21:03:51,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 88 transitions. [2024-10-11 21:03:51,303 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 88 transitions. Word has length 9 [2024-10-11 21:03:51,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:03:51,304 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 88 transitions. [2024-10-11 21:03:51,304 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) [2024-10-11 21:03:51,304 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 88 transitions. [2024-10-11 21:03:51,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-11 21:03:51,304 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:03:51,305 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:03:51,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 21:03:51,305 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)] === [2024-10-11 21:03:51,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:03:51,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1396175367, now seen corresponding path program 1 times [2024-10-11 21:03:51,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:03:51,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087882316] [2024-10-11 21:03:51,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:03:51,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:03:51,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:03:51,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 21:03:51,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:03:51,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087882316] [2024-10-11 21:03:51,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087882316] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 21:03:51,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 21:03:51,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 21:03:51,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871809865] [2024-10-11 21:03:51,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 21:03:51,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 21:03:51,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:03:51,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 21:03:51,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 21:03:51,395 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) [2024-10-11 21:03:51,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:03:51,527 INFO L93 Difference]: Finished difference Result 95 states and 104 transitions. [2024-10-11 21:03:51,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 21:03:51,528 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 [2024-10-11 21:03:51,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:03:51,529 INFO L225 Difference]: With dead ends: 95 [2024-10-11 21:03:51,529 INFO L226 Difference]: Without dead ends: 92 [2024-10-11 21:03:51,529 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 [2024-10-11 21:03:51,530 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 [2024-10-11 21:03:51,531 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] [2024-10-11 21:03:51,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-10-11 21:03:51,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 86. [2024-10-11 21:03:51,541 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) [2024-10-11 21:03:51,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 95 transitions. [2024-10-11 21:03:51,542 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 95 transitions. Word has length 11 [2024-10-11 21:03:51,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:03:51,545 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 95 transitions. [2024-10-11 21:03:51,545 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) [2024-10-11 21:03:51,545 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 95 transitions. [2024-10-11 21:03:51,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-11 21:03:51,546 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:03:51,546 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:03:51,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 21:03:51,546 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)] === [2024-10-11 21:03:51,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:03:51,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1694733257, now seen corresponding path program 1 times [2024-10-11 21:03:51,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:03:51,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318401647] [2024-10-11 21:03:51,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:03:51,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:03:51,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:03:51,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 21:03:51,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:03:51,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318401647] [2024-10-11 21:03:51,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318401647] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 21:03:51,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 21:03:51,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 21:03:51,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908551063] [2024-10-11 21:03:51,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 21:03:51,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 21:03:51,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:03:51,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 21:03:51,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 21:03:51,641 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) [2024-10-11 21:03:51,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:03:51,715 INFO L93 Difference]: Finished difference Result 91 states and 96 transitions. [2024-10-11 21:03:51,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 21:03:51,716 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 [2024-10-11 21:03:51,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:03:51,717 INFO L225 Difference]: With dead ends: 91 [2024-10-11 21:03:51,719 INFO L226 Difference]: Without dead ends: 81 [2024-10-11 21:03:51,719 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 [2024-10-11 21:03:51,720 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 [2024-10-11 21:03:51,720 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] [2024-10-11 21:03:51,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-10-11 21:03:51,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 79. [2024-10-11 21:03:51,731 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) [2024-10-11 21:03:51,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 86 transitions. [2024-10-11 21:03:51,732 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 86 transitions. Word has length 13 [2024-10-11 21:03:51,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:03:51,732 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 86 transitions. [2024-10-11 21:03:51,732 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) [2024-10-11 21:03:51,733 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 86 transitions. [2024-10-11 21:03:51,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-10-11 21:03:51,733 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:03:51,733 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] [2024-10-11 21:03:51,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 21:03:51,737 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)] === [2024-10-11 21:03:51,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:03:51,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1158687737, now seen corresponding path program 1 times [2024-10-11 21:03:51,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:03:51,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044302659] [2024-10-11 21:03:51,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:03:51,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:03:51,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:03:51,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 21:03:51,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:03:51,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 21:03:51,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:03:51,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044302659] [2024-10-11 21:03:51,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044302659] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 21:03:51,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 21:03:51,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 21:03:51,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739222441] [2024-10-11 21:03:51,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 21:03:51,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 21:03:51,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:03:51,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 21:03:51,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 21:03:51,810 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) [2024-10-11 21:03:51,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:03:51,831 INFO L93 Difference]: Finished difference Result 81 states and 86 transitions. [2024-10-11 21:03:51,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 21:03:51,832 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 [2024-10-11 21:03:51,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:03:51,833 INFO L225 Difference]: With dead ends: 81 [2024-10-11 21:03:51,833 INFO L226 Difference]: Without dead ends: 79 [2024-10-11 21:03:51,833 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 [2024-10-11 21:03:51,834 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 [2024-10-11 21:03:51,834 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] [2024-10-11 21:03:51,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-10-11 21:03:51,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2024-10-11 21:03:51,844 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) [2024-10-11 21:03:51,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 84 transitions. [2024-10-11 21:03:51,845 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 84 transitions. Word has length 20 [2024-10-11 21:03:51,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:03:51,847 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 84 transitions. [2024-10-11 21:03:51,847 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) [2024-10-11 21:03:51,847 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 84 transitions. [2024-10-11 21:03:51,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-10-11 21:03:51,848 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:03:51,848 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] [2024-10-11 21:03:51,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 21:03:51,849 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)] === [2024-10-11 21:03:51,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:03:51,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1462148739, now seen corresponding path program 1 times [2024-10-11 21:03:51,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:03:51,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853791258] [2024-10-11 21:03:51,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:03:51,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:03:51,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:03:51,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 21:03:51,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:03:51,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 21:03:51,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:03:51,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853791258] [2024-10-11 21:03:51,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853791258] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 21:03:51,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 21:03:51,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 21:03:51,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077162730] [2024-10-11 21:03:51,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 21:03:51,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 21:03:51,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:03:51,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 21:03:51,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 21:03:51,966 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) [2024-10-11 21:03:52,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:03:52,052 INFO L93 Difference]: Finished difference Result 82 states and 88 transitions. [2024-10-11 21:03:52,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 21:03:52,053 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 [2024-10-11 21:03:52,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:03:52,053 INFO L225 Difference]: With dead ends: 82 [2024-10-11 21:03:52,054 INFO L226 Difference]: Without dead ends: 81 [2024-10-11 21:03:52,054 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 [2024-10-11 21:03:52,054 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 [2024-10-11 21:03:52,055 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] [2024-10-11 21:03:52,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-10-11 21:03:52,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 80. [2024-10-11 21:03:52,063 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) [2024-10-11 21:03:52,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 85 transitions. [2024-10-11 21:03:52,064 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 85 transitions. Word has length 24 [2024-10-11 21:03:52,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:03:52,064 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 85 transitions. [2024-10-11 21:03:52,065 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) [2024-10-11 21:03:52,065 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 85 transitions. [2024-10-11 21:03:52,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-10-11 21:03:52,065 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:03:52,065 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] [2024-10-11 21:03:52,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 21:03:52,065 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)] === [2024-10-11 21:03:52,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:03:52,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1918029427, now seen corresponding path program 1 times [2024-10-11 21:03:52,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:03:52,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93782726] [2024-10-11 21:03:52,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:03:52,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:03:52,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:03:52,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 21:03:52,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:03:52,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 21:03:52,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:03:52,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93782726] [2024-10-11 21:03:52,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93782726] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 21:03:52,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 21:03:52,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 21:03:52,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222187190] [2024-10-11 21:03:52,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 21:03:52,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 21:03:52,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:03:52,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 21:03:52,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 21:03:52,134 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) [2024-10-11 21:03:52,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:03:52,208 INFO L93 Difference]: Finished difference Result 82 states and 87 transitions. [2024-10-11 21:03:52,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 21:03:52,209 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 [2024-10-11 21:03:52,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:03:52,210 INFO L225 Difference]: With dead ends: 82 [2024-10-11 21:03:52,210 INFO L226 Difference]: Without dead ends: 81 [2024-10-11 21:03:52,210 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 [2024-10-11 21:03:52,211 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 [2024-10-11 21:03:52,211 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] [2024-10-11 21:03:52,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-10-11 21:03:52,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2024-10-11 21:03:52,218 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) [2024-10-11 21:03:52,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 86 transitions. [2024-10-11 21:03:52,218 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 86 transitions. Word has length 25 [2024-10-11 21:03:52,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:03:52,219 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 86 transitions. [2024-10-11 21:03:52,219 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) [2024-10-11 21:03:52,219 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 86 transitions. [2024-10-11 21:03:52,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-10-11 21:03:52,219 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:03:52,220 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] [2024-10-11 21:03:52,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 21:03:52,222 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)] === [2024-10-11 21:03:52,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:03:52,223 INFO L85 PathProgramCache]: Analyzing trace with hash 685310549, now seen corresponding path program 1 times [2024-10-11 21:03:52,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:03:52,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473756435] [2024-10-11 21:03:52,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:03:52,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:03:52,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:03:52,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 21:03:52,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:03:52,319 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 21:03:52,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:03:52,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473756435] [2024-10-11 21:03:52,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473756435] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:03:52,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1057958899] [2024-10-11 21:03:52,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:03:52,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:03:52,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:03:52,322 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:03:52,324 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 21:03:52,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:03:52,368 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 21:03:52,369 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:03:52,473 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 21:03:52,473 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 21:03:52,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1057958899] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 21:03:52,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 21:03:52,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-10-11 21:03:52,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511880468] [2024-10-11 21:03:52,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 21:03:52,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 21:03:52,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:03:52,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 21:03:52,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-11 21:03:52,475 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) [2024-10-11 21:03:52,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:03:52,499 INFO L93 Difference]: Finished difference Result 81 states and 86 transitions. [2024-10-11 21:03:52,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 21:03:52,500 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 [2024-10-11 21:03:52,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:03:52,501 INFO L225 Difference]: With dead ends: 81 [2024-10-11 21:03:52,501 INFO L226 Difference]: Without dead ends: 80 [2024-10-11 21:03:52,501 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-10-11 21:03:52,502 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 [2024-10-11 21:03:52,502 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] [2024-10-11 21:03:52,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-10-11 21:03:52,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2024-10-11 21:03:52,507 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) [2024-10-11 21:03:52,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 85 transitions. [2024-10-11 21:03:52,508 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 85 transitions. Word has length 27 [2024-10-11 21:03:52,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:03:52,508 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 85 transitions. [2024-10-11 21:03:52,509 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) [2024-10-11 21:03:52,509 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 85 transitions. [2024-10-11 21:03:52,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-10-11 21:03:52,509 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:03:52,510 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] [2024-10-11 21:03:52,526 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-11 21:03:52,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:03:52,714 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)] === [2024-10-11 21:03:52,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:03:52,715 INFO L85 PathProgramCache]: Analyzing trace with hash -230209420, now seen corresponding path program 1 times [2024-10-11 21:03:52,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:03:52,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913309040] [2024-10-11 21:03:52,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:03:52,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:03:52,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:03:52,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 21:03:52,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:03:52,793 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 21:03:52,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:03:52,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913309040] [2024-10-11 21:03:52,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913309040] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:03:52,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2002757046] [2024-10-11 21:03:52,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:03:52,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:03:52,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:03:52,796 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:03:52,798 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 21:03:52,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:03:52,834 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 21:03:52,835 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:03:52,898 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 21:03:52,898 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 21:03:52,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2002757046] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 21:03:52,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 21:03:52,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-10-11 21:03:52,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080515971] [2024-10-11 21:03:52,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 21:03:52,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 21:03:52,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:03:52,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 21:03:52,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-11 21:03:52,900 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) [2024-10-11 21:03:52,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:03:52,933 INFO L93 Difference]: Finished difference Result 87 states and 88 transitions. [2024-10-11 21:03:52,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 21:03:52,934 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 [2024-10-11 21:03:52,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:03:52,934 INFO L225 Difference]: With dead ends: 87 [2024-10-11 21:03:52,935 INFO L226 Difference]: Without dead ends: 86 [2024-10-11 21:03:52,935 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 [2024-10-11 21:03:52,935 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 [2024-10-11 21:03:52,936 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] [2024-10-11 21:03:52,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-10-11 21:03:52,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 79. [2024-10-11 21:03:52,939 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) [2024-10-11 21:03:52,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 84 transitions. [2024-10-11 21:03:52,940 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 84 transitions. Word has length 28 [2024-10-11 21:03:52,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:03:52,940 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 84 transitions. [2024-10-11 21:03:52,941 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) [2024-10-11 21:03:52,941 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 84 transitions. [2024-10-11 21:03:52,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-10-11 21:03:52,941 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:03:52,942 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] [2024-10-11 21:03:52,958 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-11 21:03:53,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:03:53,142 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)] === [2024-10-11 21:03:53,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:03:53,143 INFO L85 PathProgramCache]: Analyzing trace with hash 893986236, now seen corresponding path program 1 times [2024-10-11 21:03:53,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:03:53,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287559049] [2024-10-11 21:03:53,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:03:53,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:03:53,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 21:03:53,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [281578056] [2024-10-11 21:03:53,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:03:53,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:03:53,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:03:53,156 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:03:53,158 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 21:03:53,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:03:53,203 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 21:03:53,205 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:03:53,262 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 21:03:53,262 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:03:53,353 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 21:03:53,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:03:53,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287559049] [2024-10-11 21:03:53,354 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 21:03:53,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [281578056] [2024-10-11 21:03:53,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [281578056] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:03:53,354 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-11 21:03:53,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2024-10-11 21:03:53,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440573425] [2024-10-11 21:03:53,354 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-11 21:03:53,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 21:03:53,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:03:53,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 21:03:53,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-11 21:03:53,355 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) [2024-10-11 21:03:53,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:03:53,507 INFO L93 Difference]: Finished difference Result 169 states and 213 transitions. [2024-10-11 21:03:53,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 21:03:53,508 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 [2024-10-11 21:03:53,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:03:53,510 INFO L225 Difference]: With dead ends: 169 [2024-10-11 21:03:53,510 INFO L226 Difference]: Without dead ends: 165 [2024-10-11 21:03:53,510 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 [2024-10-11 21:03:53,511 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 [2024-10-11 21:03:53,511 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] [2024-10-11 21:03:53,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2024-10-11 21:03:53,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 125. [2024-10-11 21:03:53,520 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) [2024-10-11 21:03:53,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 156 transitions. [2024-10-11 21:03:53,521 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 156 transitions. Word has length 31 [2024-10-11 21:03:53,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:03:53,523 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 156 transitions. [2024-10-11 21:03:53,523 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) [2024-10-11 21:03:53,523 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 156 transitions. [2024-10-11 21:03:53,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-10-11 21:03:53,523 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:03:53,524 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] [2024-10-11 21:03:53,541 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-11 21:03:53,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-11 21:03:53,724 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)] === [2024-10-11 21:03:53,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:03:53,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1943769592, now seen corresponding path program 1 times [2024-10-11 21:03:53,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:03:53,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5750627] [2024-10-11 21:03:53,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:03:53,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:03:53,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:03:53,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 21:03:53,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:03:53,782 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 21:03:53,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:03:53,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5750627] [2024-10-11 21:03:53,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5750627] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:03:53,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [793374752] [2024-10-11 21:03:53,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:03:53,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:03:53,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:03:53,785 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:03:53,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-11 21:03:53,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:03:53,827 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 21:03:53,828 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:03:53,937 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 21:03:53,937 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:03:54,002 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 21:03:54,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [793374752] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:03:54,002 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 21:03:54,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-10-11 21:03:54,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673427459] [2024-10-11 21:03:54,002 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 21:03:54,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 21:03:54,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:03:54,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 21:03:54,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-10-11 21:03:54,004 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) [2024-10-11 21:03:54,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:03:54,109 INFO L93 Difference]: Finished difference Result 125 states and 156 transitions. [2024-10-11 21:03:54,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 21:03:54,110 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 [2024-10-11 21:03:54,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:03:54,111 INFO L225 Difference]: With dead ends: 125 [2024-10-11 21:03:54,111 INFO L226 Difference]: Without dead ends: 122 [2024-10-11 21:03:54,111 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 [2024-10-11 21:03:54,112 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 [2024-10-11 21:03:54,112 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] [2024-10-11 21:03:54,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-10-11 21:03:54,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2024-10-11 21:03:54,118 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) [2024-10-11 21:03:54,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 149 transitions. [2024-10-11 21:03:54,118 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 149 transitions. Word has length 32 [2024-10-11 21:03:54,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:03:54,119 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 149 transitions. [2024-10-11 21:03:54,119 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) [2024-10-11 21:03:54,119 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 149 transitions. [2024-10-11 21:03:54,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-10-11 21:03:54,120 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:03:54,120 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] [2024-10-11 21:03:54,136 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-11 21:03:54,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-11 21:03:54,321 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)] === [2024-10-11 21:03:54,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:03:54,321 INFO L85 PathProgramCache]: Analyzing trace with hash 127315262, now seen corresponding path program 1 times [2024-10-11 21:03:54,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:03:54,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103030880] [2024-10-11 21:03:54,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:03:54,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:03:54,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:03:54,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 21:03:54,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:03:54,388 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 21:03:54,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:03:54,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103030880] [2024-10-11 21:03:54,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103030880] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:03:54,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1412083041] [2024-10-11 21:03:54,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:03:54,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:03:54,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:03:54,391 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:03:54,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-11 21:03:54,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:03:54,428 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 21:03:54,429 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:03:54,530 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 21:03:54,530 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:03:54,596 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 21:03:54,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1412083041] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:03:54,596 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 21:03:54,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-10-11 21:03:54,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357475694] [2024-10-11 21:03:54,597 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 21:03:54,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 21:03:54,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:03:54,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 21:03:54,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2024-10-11 21:03:54,598 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) [2024-10-11 21:03:54,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:03:54,751 INFO L93 Difference]: Finished difference Result 145 states and 174 transitions. [2024-10-11 21:03:54,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 21:03:54,751 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 [2024-10-11 21:03:54,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:03:54,752 INFO L225 Difference]: With dead ends: 145 [2024-10-11 21:03:54,752 INFO L226 Difference]: Without dead ends: 138 [2024-10-11 21:03:54,752 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 [2024-10-11 21:03:54,753 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 [2024-10-11 21:03:54,753 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] [2024-10-11 21:03:54,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2024-10-11 21:03:54,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 122. [2024-10-11 21:03:54,759 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) [2024-10-11 21:03:54,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 140 transitions. [2024-10-11 21:03:54,759 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 140 transitions. Word has length 33 [2024-10-11 21:03:54,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:03:54,760 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 140 transitions. [2024-10-11 21:03:54,760 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) [2024-10-11 21:03:54,760 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 140 transitions. [2024-10-11 21:03:54,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-10-11 21:03:54,761 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:03:54,761 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] [2024-10-11 21:03:54,775 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-11 21:03:54,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-10-11 21:03:54,962 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)] === [2024-10-11 21:03:54,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:03:54,962 INFO L85 PathProgramCache]: Analyzing trace with hash 2090884288, now seen corresponding path program 1 times [2024-10-11 21:03:54,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:03:54,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990521504] [2024-10-11 21:03:54,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:03:54,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:03:54,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:03:55,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 21:03:55,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:03:55,044 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 21:03:55,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:03:55,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990521504] [2024-10-11 21:03:55,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990521504] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:03:55,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [696951749] [2024-10-11 21:03:55,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:03:55,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:03:55,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:03:55,046 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:03:55,048 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-11 21:03:55,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:03:55,084 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 21:03:55,085 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:03:55,249 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 21:03:55,249 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 21:03:55,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [696951749] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 21:03:55,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 21:03:55,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2024-10-11 21:03:55,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520226435] [2024-10-11 21:03:55,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 21:03:55,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 21:03:55,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:03:55,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 21:03:55,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-10-11 21:03:55,251 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) [2024-10-11 21:03:55,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:03:55,320 INFO L93 Difference]: Finished difference Result 122 states and 140 transitions. [2024-10-11 21:03:55,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 21:03:55,320 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 [2024-10-11 21:03:55,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:03:55,321 INFO L225 Difference]: With dead ends: 122 [2024-10-11 21:03:55,321 INFO L226 Difference]: Without dead ends: 104 [2024-10-11 21:03:55,321 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 [2024-10-11 21:03:55,322 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 [2024-10-11 21:03:55,322 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] [2024-10-11 21:03:55,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-10-11 21:03:55,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2024-10-11 21:03:55,327 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) [2024-10-11 21:03:55,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 113 transitions. [2024-10-11 21:03:55,328 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 113 transitions. Word has length 35 [2024-10-11 21:03:55,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:03:55,328 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 113 transitions. [2024-10-11 21:03:55,329 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) [2024-10-11 21:03:55,329 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 113 transitions. [2024-10-11 21:03:55,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-10-11 21:03:55,330 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:03:55,331 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] [2024-10-11 21:03:55,347 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-11 21:03:55,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,8 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:03:55,532 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)] === [2024-10-11 21:03:55,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:03:55,534 INFO L85 PathProgramCache]: Analyzing trace with hash 579977568, now seen corresponding path program 1 times [2024-10-11 21:03:55,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:03:55,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296375859] [2024-10-11 21:03:55,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:03:55,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:03:55,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:03:55,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 21:03:55,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:03:55,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 21:03:55,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:03:55,606 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 21:03:55,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:03:55,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296375859] [2024-10-11 21:03:55,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296375859] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:03:55,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1599594427] [2024-10-11 21:03:55,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:03:55,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:03:55,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:03:55,612 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:03:55,614 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-11 21:03:55,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:03:55,654 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 21:03:55,655 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:03:55,702 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 21:03:55,702 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 21:03:55,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1599594427] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 21:03:55,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 21:03:55,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-10-11 21:03:55,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929728372] [2024-10-11 21:03:55,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 21:03:55,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 21:03:55,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:03:55,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 21:03:55,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 21:03:55,704 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) [2024-10-11 21:03:55,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:03:55,725 INFO L93 Difference]: Finished difference Result 104 states and 113 transitions. [2024-10-11 21:03:55,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 21:03:55,725 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 [2024-10-11 21:03:55,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:03:55,726 INFO L225 Difference]: With dead ends: 104 [2024-10-11 21:03:55,726 INFO L226 Difference]: Without dead ends: 103 [2024-10-11 21:03:55,727 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 [2024-10-11 21:03:55,727 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 [2024-10-11 21:03:55,727 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] [2024-10-11 21:03:55,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-10-11 21:03:55,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2024-10-11 21:03:55,732 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) [2024-10-11 21:03:55,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 110 transitions. [2024-10-11 21:03:55,733 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 110 transitions. Word has length 44 [2024-10-11 21:03:55,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:03:55,733 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 110 transitions. [2024-10-11 21:03:55,734 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) [2024-10-11 21:03:55,734 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 110 transitions. [2024-10-11 21:03:55,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-10-11 21:03:55,734 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:03:55,734 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] [2024-10-11 21:03:55,755 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-11 21:03:55,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-10-11 21:03:55,936 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)] === [2024-10-11 21:03:55,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:03:55,936 INFO L85 PathProgramCache]: Analyzing trace with hash 799435496, now seen corresponding path program 1 times [2024-10-11 21:03:55,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:03:55,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233611804] [2024-10-11 21:03:55,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:03:55,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:03:55,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:03:55,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 21:03:55,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:03:55,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 21:03:55,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:03:55,982 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 21:03:55,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:03:55,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233611804] [2024-10-11 21:03:55,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233611804] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:03:55,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1459437456] [2024-10-11 21:03:55,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:03:55,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:03:55,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:03:55,985 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:03:55,989 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-11 21:03:56,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:03:56,033 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 21:03:56,034 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:03:56,083 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 21:03:56,084 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:03:56,148 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 21:03:56,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1459437456] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:03:56,148 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 21:03:56,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-10-11 21:03:56,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090318799] [2024-10-11 21:03:56,149 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 21:03:56,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 21:03:56,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:03:56,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 21:03:56,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-11 21:03:56,150 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) [2024-10-11 21:03:56,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:03:56,183 INFO L93 Difference]: Finished difference Result 119 states and 125 transitions. [2024-10-11 21:03:56,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 21:03:56,184 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 [2024-10-11 21:03:56,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:03:56,184 INFO L225 Difference]: With dead ends: 119 [2024-10-11 21:03:56,184 INFO L226 Difference]: Without dead ends: 118 [2024-10-11 21:03:56,185 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 [2024-10-11 21:03:56,185 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 [2024-10-11 21:03:56,185 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] [2024-10-11 21:03:56,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-10-11 21:03:56,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 113. [2024-10-11 21:03:56,191 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) [2024-10-11 21:03:56,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 120 transitions. [2024-10-11 21:03:56,192 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 120 transitions. Word has length 45 [2024-10-11 21:03:56,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:03:56,192 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 120 transitions. [2024-10-11 21:03:56,192 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) [2024-10-11 21:03:56,192 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 120 transitions. [2024-10-11 21:03:56,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-10-11 21:03:56,193 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:03:56,193 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] [2024-10-11 21:03:56,209 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-10-11 21:03:56,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-10-11 21:03:56,398 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)] === [2024-10-11 21:03:56,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:03:56,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1388648805, now seen corresponding path program 1 times [2024-10-11 21:03:56,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:03:56,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120664597] [2024-10-11 21:03:56,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:03:56,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:03:56,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:03:56,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 21:03:56,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:03:56,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 21:03:56,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:03:56,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-11 21:03:56,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:03:56,543 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-11 21:03:56,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:03:56,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120664597] [2024-10-11 21:03:56,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120664597] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:03:56,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [205581259] [2024-10-11 21:03:56,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:03:56,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:03:56,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:03:56,546 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:03:56,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-11 21:03:56,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:03:56,609 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 21:03:56,611 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:03:56,836 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-11 21:03:56,837 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:03:57,006 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-11 21:03:57,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [205581259] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:03:57,006 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 21:03:57,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 19 [2024-10-11 21:03:57,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706095127] [2024-10-11 21:03:57,006 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 21:03:57,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-11 21:03:57,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:03:57,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-11 21:03:57,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=245, Unknown=0, NotChecked=0, Total=380 [2024-10-11 21:03:57,008 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) [2024-10-11 21:03:57,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:03:57,299 INFO L93 Difference]: Finished difference Result 170 states and 189 transitions. [2024-10-11 21:03:57,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 21:03:57,300 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 [2024-10-11 21:03:57,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:03:57,301 INFO L225 Difference]: With dead ends: 170 [2024-10-11 21:03:57,301 INFO L226 Difference]: Without dead ends: 169 [2024-10-11 21:03:57,302 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 [2024-10-11 21:03:57,302 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 33 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2024-10-11 21:03:57,303 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] [2024-10-11 21:03:57,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2024-10-11 21:03:57,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 157. [2024-10-11 21:03:57,310 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) [2024-10-11 21:03:57,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 173 transitions. [2024-10-11 21:03:57,312 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 173 transitions. Word has length 73 [2024-10-11 21:03:57,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:03:57,312 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 173 transitions. [2024-10-11 21:03:57,313 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) [2024-10-11 21:03:57,313 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 173 transitions. [2024-10-11 21:03:57,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-11 21:03:57,314 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:03:57,314 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] [2024-10-11 21:03:57,330 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-10-11 21:03:57,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:03:57,515 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)] === [2024-10-11 21:03:57,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:03:57,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1188030000, now seen corresponding path program 2 times [2024-10-11 21:03:57,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:03:57,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644014524] [2024-10-11 21:03:57,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:03:57,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:03:57,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:03:57,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 21:03:57,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:03:57,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 21:03:57,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:03:57,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-11 21:03:57,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:03:57,664 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-11 21:03:57,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:03:57,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644014524] [2024-10-11 21:03:57,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644014524] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:03:57,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1718318835] [2024-10-11 21:03:57,665 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 21:03:57,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:03:57,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:03:57,666 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:03:57,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-11 21:03:57,714 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 21:03:57,714 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 21:03:57,715 INFO L255 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-11 21:03:57,719 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:03:57,958 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-11 21:03:57,958 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:03:58,157 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-11 21:03:58,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1718318835] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:03:58,158 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 21:03:58,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 21 [2024-10-11 21:03:58,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025089651] [2024-10-11 21:03:58,158 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 21:03:58,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-10-11 21:03:58,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:03:58,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-10-11 21:03:58,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=308, Unknown=0, NotChecked=0, Total=462 [2024-10-11 21:03:58,160 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) [2024-10-11 21:03:58,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:03:58,483 INFO L93 Difference]: Finished difference Result 185 states and 201 transitions. [2024-10-11 21:03:58,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 21:03:58,484 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 [2024-10-11 21:03:58,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:03:58,485 INFO L225 Difference]: With dead ends: 185 [2024-10-11 21:03:58,485 INFO L226 Difference]: Without dead ends: 173 [2024-10-11 21:03:58,486 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 [2024-10-11 21:03:58,487 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 [2024-10-11 21:03:58,487 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] [2024-10-11 21:03:58,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-10-11 21:03:58,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 165. [2024-10-11 21:03:58,494 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) [2024-10-11 21:03:58,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 179 transitions. [2024-10-11 21:03:58,495 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 179 transitions. Word has length 81 [2024-10-11 21:03:58,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:03:58,495 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 179 transitions. [2024-10-11 21:03:58,496 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) [2024-10-11 21:03:58,496 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 179 transitions. [2024-10-11 21:03:58,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-10-11 21:03:58,496 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:03:58,497 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] [2024-10-11 21:03:58,513 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-10-11 21:03:58,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:03:58,697 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)] === [2024-10-11 21:03:58,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:03:58,698 INFO L85 PathProgramCache]: Analyzing trace with hash 633606503, now seen corresponding path program 2 times [2024-10-11 21:03:58,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:03:58,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546303121] [2024-10-11 21:03:58,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:03:58,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:03:58,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 21:03:58,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1830796977] [2024-10-11 21:03:58,715 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 21:03:58,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:03:58,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:03:58,716 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:03:58,718 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-11 21:03:58,776 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 21:03:58,777 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 21:03:58,778 INFO L255 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-11 21:03:58,780 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:03:58,908 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-11 21:03:58,908 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:03:59,129 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-11 21:03:59,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:03:59,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546303121] [2024-10-11 21:03:59,129 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 21:03:59,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1830796977] [2024-10-11 21:03:59,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1830796977] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:03:59,130 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-11 21:03:59,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-10-11 21:03:59,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981691577] [2024-10-11 21:03:59,130 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-11 21:03:59,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-11 21:03:59,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:03:59,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-11 21:03:59,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-10-11 21:03:59,132 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) [2024-10-11 21:03:59,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:03:59,464 INFO L93 Difference]: Finished difference Result 248 states and 271 transitions. [2024-10-11 21:03:59,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-11 21:03:59,465 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 [2024-10-11 21:03:59,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:03:59,467 INFO L225 Difference]: With dead ends: 248 [2024-10-11 21:03:59,467 INFO L226 Difference]: Without dead ends: 240 [2024-10-11 21:03:59,467 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 [2024-10-11 21:03:59,468 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 [2024-10-11 21:03:59,468 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] [2024-10-11 21:03:59,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2024-10-11 21:03:59,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 223. [2024-10-11 21:03:59,477 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) [2024-10-11 21:03:59,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 245 transitions. [2024-10-11 21:03:59,479 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 245 transitions. Word has length 103 [2024-10-11 21:03:59,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:03:59,479 INFO L471 AbstractCegarLoop]: Abstraction has 223 states and 245 transitions. [2024-10-11 21:03:59,479 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) [2024-10-11 21:03:59,479 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 245 transitions. [2024-10-11 21:03:59,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-10-11 21:03:59,480 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:03:59,480 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] [2024-10-11 21:03:59,498 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-10-11 21:03:59,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,13 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:03:59,681 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)] === [2024-10-11 21:03:59,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:03:59,682 INFO L85 PathProgramCache]: Analyzing trace with hash 851054419, now seen corresponding path program 2 times [2024-10-11 21:03:59,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:03:59,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305310849] [2024-10-11 21:03:59,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:03:59,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:03:59,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:03:59,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 21:03:59,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:03:59,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 21:03:59,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:03:59,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-11 21:03:59,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:03:59,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-11 21:03:59,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:03:59,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-11 21:03:59,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:03:59,763 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2024-10-11 21:03:59,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:03:59,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305310849] [2024-10-11 21:03:59,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305310849] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:03:59,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [915482403] [2024-10-11 21:03:59,763 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 21:03:59,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:03:59,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:03:59,765 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:03:59,767 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-11 21:03:59,803 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-11 21:03:59,803 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 21:03:59,804 INFO L255 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 21:03:59,805 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:03:59,917 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2024-10-11 21:03:59,917 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:04:00,060 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2024-10-11 21:04:00,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [915482403] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:04:00,060 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 21:04:00,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-10-11 21:04:00,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582610043] [2024-10-11 21:04:00,061 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 21:04:00,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 21:04:00,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:04:00,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 21:04:00,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-11 21:04:00,062 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) [2024-10-11 21:04:00,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:04:00,092 INFO L93 Difference]: Finished difference Result 223 states and 245 transitions. [2024-10-11 21:04:00,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 21:04:00,093 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 [2024-10-11 21:04:00,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:04:00,094 INFO L225 Difference]: With dead ends: 223 [2024-10-11 21:04:00,095 INFO L226 Difference]: Without dead ends: 222 [2024-10-11 21:04:00,095 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 [2024-10-11 21:04:00,096 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 [2024-10-11 21:04:00,097 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] [2024-10-11 21:04:00,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2024-10-11 21:04:00,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 222. [2024-10-11 21:04:00,110 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) [2024-10-11 21:04:00,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 239 transitions. [2024-10-11 21:04:00,112 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 239 transitions. Word has length 117 [2024-10-11 21:04:00,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:04:00,112 INFO L471 AbstractCegarLoop]: Abstraction has 222 states and 239 transitions. [2024-10-11 21:04:00,113 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) [2024-10-11 21:04:00,113 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 239 transitions. [2024-10-11 21:04:00,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-10-11 21:04:00,114 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:04:00,115 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] [2024-10-11 21:04:00,127 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-10-11 21:04:00,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,14 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:04:00,315 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)] === [2024-10-11 21:04:00,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:04:00,316 INFO L85 PathProgramCache]: Analyzing trace with hash 913861449, now seen corresponding path program 2 times [2024-10-11 21:04:00,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:04:00,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705324751] [2024-10-11 21:04:00,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:04:00,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:04:00,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:04:00,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 21:04:00,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:04:00,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 21:04:00,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:04:00,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-11 21:04:00,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:04:00,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-11 21:04:00,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:04:00,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-11 21:04:00,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:04:00,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-11 21:04:00,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:04:00,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-11 21:04:00,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:04:00,696 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 0 proven. 420 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-10-11 21:04:00,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:04:00,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705324751] [2024-10-11 21:04:00,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705324751] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:04:00,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1246111506] [2024-10-11 21:04:00,697 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 21:04:00,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:04:00,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:04:00,699 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:04:00,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-10-11 21:04:00,742 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-11 21:04:00,742 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 21:04:00,743 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 21:04:00,744 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:04:00,917 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2024-10-11 21:04:00,917 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 21:04:00,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1246111506] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 21:04:00,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 21:04:00,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [15] total 20 [2024-10-11 21:04:00,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351624977] [2024-10-11 21:04:00,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 21:04:00,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 21:04:00,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:04:00,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 21:04:00,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2024-10-11 21:04:00,919 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) [2024-10-11 21:04:01,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:04:01,006 INFO L93 Difference]: Finished difference Result 224 states and 241 transitions. [2024-10-11 21:04:01,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 21:04:01,006 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 [2024-10-11 21:04:01,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:04:01,007 INFO L225 Difference]: With dead ends: 224 [2024-10-11 21:04:01,007 INFO L226 Difference]: Without dead ends: 223 [2024-10-11 21:04:01,008 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 [2024-10-11 21:04:01,008 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 [2024-10-11 21:04:01,008 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] [2024-10-11 21:04:01,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2024-10-11 21:04:01,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 221. [2024-10-11 21:04:01,018 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) [2024-10-11 21:04:01,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 235 transitions. [2024-10-11 21:04:01,019 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 235 transitions. Word has length 169 [2024-10-11 21:04:01,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:04:01,020 INFO L471 AbstractCegarLoop]: Abstraction has 221 states and 235 transitions. [2024-10-11 21:04:01,020 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) [2024-10-11 21:04:01,020 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 235 transitions. [2024-10-11 21:04:01,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-10-11 21:04:01,021 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:04:01,022 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] [2024-10-11 21:04:01,038 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-10-11 21:04:01,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-10-11 21:04:01,226 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)] === [2024-10-11 21:04:01,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:04:01,227 INFO L85 PathProgramCache]: Analyzing trace with hash 2073367572, now seen corresponding path program 3 times [2024-10-11 21:04:01,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:04:01,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852034529] [2024-10-11 21:04:01,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:04:01,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:04:01,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:04:01,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 21:04:01,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:04:01,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 21:04:01,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:04:01,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-11 21:04:01,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:04:01,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-11 21:04:01,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:04:01,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-11 21:04:01,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:04:01,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-11 21:04:01,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:04:01,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-11 21:04:01,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:04:01,691 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 0 proven. 476 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-10-11 21:04:01,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:04:01,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852034529] [2024-10-11 21:04:01,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852034529] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:04:01,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [636357525] [2024-10-11 21:04:01,692 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-11 21:04:01,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:04:01,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:04:01,694 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:04:01,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-10-11 21:04:01,748 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-11 21:04:01,749 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 21:04:01,749 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-11 21:04:01,752 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:05:03,625 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 (= (mod (+ |ULTIMATE.start_main_~y~0#1| .cse0) 2) 0) (<= .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 [2024-10-11 21:05:07,649 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2024-10-11 21:05:07,650 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 21:05:07,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [636357525] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 21:05:07,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 21:05:07,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [16] total 23 [2024-10-11 21:05:07,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50422282] [2024-10-11 21:05:07,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 21:05:07,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 21:05:07,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:05:07,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 21:05:07,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=432, Unknown=8, NotChecked=42, Total=552 [2024-10-11 21:05:07,652 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) [2024-10-11 21:05:12,549 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse1 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|))) (let ((.cse0 (div (+ .cse1 (* (- 1) |c_ULTIMATE.start_main_~y~0#1|)) 2))) (and (<= |c_ULTIMATE.start_main_~x~0#1| 4611686018427387903) (<= |c_ULTIMATE.start_main_~x~0#1| (+ |c_ULTIMATE.start_main_~y~0#1| .cse0)) (= (mod (+ |c_ULTIMATE.start_main_~y~0#1| .cse1) 2) 0) (<= .cse0 4611686018427387903) (exists ((|ULTIMATE.start_main_~y~0#1| Int)) (let ((.cse2 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|))) (and (= (mod (+ |ULTIMATE.start_main_~y~0#1| .cse2) 2) 0) (<= .cse2 9223372036854775807) (<= |c_ULTIMATE.start_main_~x~0#1| (+ |ULTIMATE.start_main_~y~0#1| (div (+ (* (- 1) |ULTIMATE.start_main_~y~0#1|) .cse2) 2))))))))) is different from true [2024-10-11 21:05:17,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:05:17,067 INFO L93 Difference]: Finished difference Result 223 states and 237 transitions. [2024-10-11 21:05:17,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 21:05:17,068 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 [2024-10-11 21:05:17,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:05:17,069 INFO L225 Difference]: With dead ends: 223 [2024-10-11 21:05:17,069 INFO L226 Difference]: Without dead ends: 217 [2024-10-11 21:05:17,069 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 183 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 42.5s TimeCoverageRelationStatistics Valid=110, Invalid=591, Unknown=9, NotChecked=102, Total=812 [2024-10-11 21:05:17,070 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 54 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 63 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-11 21:05:17,070 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 41 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 101 Invalid, 0 Unknown, 63 Unchecked, 0.7s Time] [2024-10-11 21:05:17,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2024-10-11 21:05:17,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 215. [2024-10-11 21:05:17,086 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) [2024-10-11 21:05:17,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 224 transitions. [2024-10-11 21:05:17,087 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 224 transitions. Word has length 177 [2024-10-11 21:05:17,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:05:17,088 INFO L471 AbstractCegarLoop]: Abstraction has 215 states and 224 transitions. [2024-10-11 21:05:17,088 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) [2024-10-11 21:05:17,088 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 224 transitions. [2024-10-11 21:05:17,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2024-10-11 21:05:17,090 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:05:17,091 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] [2024-10-11 21:05:17,108 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-10-11 21:05:17,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-10-11 21:05:17,295 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)] === [2024-10-11 21:05:17,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:05:17,295 INFO L85 PathProgramCache]: Analyzing trace with hash -2093625411, now seen corresponding path program 3 times [2024-10-11 21:05:17,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:05:17,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568608274] [2024-10-11 21:05:17,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:05:17,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:05:17,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 21:05:17,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1138628536] [2024-10-11 21:05:17,366 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-11 21:05:17,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:05:17,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:05:17,368 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:05:17,369 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-10-11 21:05:17,514 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-10-11 21:05:17,514 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 21:05:17,518 INFO L255 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-10-11 21:05:17,521 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:05:17,827 INFO L134 CoverageAnalysis]: Checked inductivity of 1140 backedges. 0 proven. 960 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-10-11 21:05:17,828 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:05:18,506 INFO L134 CoverageAnalysis]: Checked inductivity of 1140 backedges. 0 proven. 960 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-10-11 21:05:18,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:05:18,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568608274] [2024-10-11 21:05:18,506 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 21:05:18,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1138628536] [2024-10-11 21:05:18,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1138628536] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:05:18,507 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-11 21:05:18,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2024-10-11 21:05:18,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801790414] [2024-10-11 21:05:18,507 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-11 21:05:18,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-10-11 21:05:18,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:05:18,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-10-11 21:05:18,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2024-10-11 21:05:18,510 INFO L87 Difference]: Start difference. First operand 215 states and 224 transitions. Second operand has 24 states, 23 states have (on average 17.26086956521739) internal successors, (397), 24 states have internal predecessors, (397), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-11 21:05:19,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:05:19,784 INFO L93 Difference]: Finished difference Result 481 states and 524 transitions. [2024-10-11 21:05:19,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-11 21:05:19,785 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 17.26086956521739) internal successors, (397), 24 states have internal predecessors, (397), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Word has length 247 [2024-10-11 21:05:19,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:05:19,791 INFO L225 Difference]: With dead ends: 481 [2024-10-11 21:05:19,791 INFO L226 Difference]: Without dead ends: 455 [2024-10-11 21:05:19,792 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 502 GetRequests, 470 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=406, Invalid=716, Unknown=0, NotChecked=0, Total=1122 [2024-10-11 21:05:19,792 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 299 mSDsluCounter, 1274 mSDsCounter, 0 mSdLazyCounter, 1471 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 1401 SdHoareTripleChecker+Invalid, 1496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-11 21:05:19,792 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 1401 Invalid, 1496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1471 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-11 21:05:19,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2024-10-11 21:05:19,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 455. [2024-10-11 21:05:19,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 430 states have (on average 1.0046511627906978) internal successors, (432), 431 states have internal predecessors, (432), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-10-11 21:05:19,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 476 transitions. [2024-10-11 21:05:19,820 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 476 transitions. Word has length 247 [2024-10-11 21:05:19,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:05:19,820 INFO L471 AbstractCegarLoop]: Abstraction has 455 states and 476 transitions. [2024-10-11 21:05:19,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 17.26086956521739) internal successors, (397), 24 states have internal predecessors, (397), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-11 21:05:19,821 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 476 transitions. [2024-10-11 21:05:19,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 536 [2024-10-11 21:05:19,829 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:05:19,829 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 1, 1] [2024-10-11 21:05:19,847 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-10-11 21:05:20,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-10-11 21:05:20,034 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-11 21:05:20,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:05:20,034 INFO L85 PathProgramCache]: Analyzing trace with hash 75294825, now seen corresponding path program 4 times [2024-10-11 21:05:20,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:05:20,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463259889] [2024-10-11 21:05:20,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:05:20,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:05:20,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:05:22,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 21:05:22,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:05:22,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 21:05:22,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:05:22,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-11 21:05:22,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:05:22,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-11 21:05:22,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:05:22,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-11 21:05:22,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:05:22,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-11 21:05:22,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:05:22,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-11 21:05:22,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:05:22,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-10-11 21:05:22,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:05:22,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-10-11 21:05:22,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:05:22,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2024-10-11 21:05:22,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:05:22,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2024-10-11 21:05:22,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:05:22,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2024-10-11 21:05:22,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:05:22,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2024-10-11 21:05:22,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:05:22,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2024-10-11 21:05:22,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:05:22,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2024-10-11 21:05:22,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:05:22,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2024-10-11 21:05:22,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:05:22,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2024-10-11 21:05:22,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:05:22,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 421 [2024-10-11 21:05:22,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:05:22,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 445 [2024-10-11 21:05:22,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:05:22,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 469 [2024-10-11 21:05:22,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:05:22,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 493 [2024-10-11 21:05:22,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:05:22,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 517 [2024-10-11 21:05:22,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:05:22,458 INFO L134 CoverageAnalysis]: Checked inductivity of 5676 backedges. 4643 proven. 109 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-10-11 21:05:22,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:05:22,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463259889] [2024-10-11 21:05:22,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463259889] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:05:22,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1264483711] [2024-10-11 21:05:22,459 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-11 21:05:22,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:05:22,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:05:22,461 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:05:22,462 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-10-11 21:05:22,608 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-11 21:05:22,609 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 21:05:22,611 INFO L255 TraceCheckSpWp]: Trace formula consists of 854 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-10-11 21:05:22,618 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:05:23,207 INFO L134 CoverageAnalysis]: Checked inductivity of 5676 backedges. 5628 proven. 20 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-11 21:05:23,207 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:05:24,221 INFO L134 CoverageAnalysis]: Checked inductivity of 5676 backedges. 4708 proven. 20 refuted. 0 times theorem prover too weak. 948 trivial. 0 not checked. [2024-10-11 21:05:24,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1264483711] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:05:24,221 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 21:05:24,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 43, 44] total 51 [2024-10-11 21:05:24,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959091990] [2024-10-11 21:05:24,221 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 21:05:24,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2024-10-11 21:05:24,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:05:24,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2024-10-11 21:05:24,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=611, Invalid=1939, Unknown=0, NotChecked=0, Total=2550 [2024-10-11 21:05:24,224 INFO L87 Difference]: Start difference. First operand 455 states and 476 transitions. Second operand has 51 states, 51 states have (on average 10.117647058823529) internal successors, (516), 51 states have internal predecessors, (516), 23 states have call successors, (44), 22 states have call predecessors, (44), 22 states have return successors, (44), 23 states have call predecessors, (44), 23 states have call successors, (44)