./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound20.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a95a21aef2f50b6142b75e9167422e223cf73e944019da3877f24b8f537b25b5 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 19:27:17,528 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 19:27:17,608 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-10 19:27:17,613 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 19:27:17,613 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 19:27:17,646 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 19:27:17,648 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 19:27:17,648 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 19:27:17,649 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 19:27:17,650 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 19:27:17,651 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 19:27:17,651 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 19:27:17,652 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 19:27:17,652 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 19:27:17,653 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 19:27:17,653 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 19:27:17,653 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 19:27:17,654 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 19:27:17,654 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 19:27:17,658 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 19:27:17,659 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 19:27:17,659 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 19:27:17,660 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 19:27:17,660 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 19:27:17,660 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 19:27:17,660 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-10 19:27:17,661 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 19:27:17,661 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 19:27:17,661 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 19:27:17,662 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 19:27:17,662 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 19:27:17,662 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 19:27:17,663 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 19:27:17,663 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 19:27:17,663 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 19:27:17,664 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 19:27:17,664 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 19:27:17,664 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 19:27:17,664 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 19:27:17,665 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 19:27:17,665 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 19:27:17,665 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 19:27:17,665 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 19:27:17,666 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 19:27:17,666 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a95a21aef2f50b6142b75e9167422e223cf73e944019da3877f24b8f537b25b5 [2024-11-10 19:27:17,933 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 19:27:17,960 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 19:27:17,975 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 19:27:17,976 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 19:27:17,977 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 19:27:17,978 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound20.c [2024-11-10 19:27:19,444 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 19:27:19,636 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 19:27:19,637 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound20.c [2024-11-10 19:27:19,647 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ab50a06e/9441159f7cde456982478734c8b58fe0/FLAG2a826a8f0 [2024-11-10 19:27:20,020 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ab50a06e/9441159f7cde456982478734c8b58fe0 [2024-11-10 19:27:20,023 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 19:27:20,024 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 19:27:20,025 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 19:27:20,026 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 19:27:20,032 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 19:27:20,032 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:27:20" (1/1) ... [2024-11-10 19:27:20,033 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60db9659 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:27:20, skipping insertion in model container [2024-11-10 19:27:20,033 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:27:20" (1/1) ... [2024-11-10 19:27:20,054 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 19:27:20,245 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 19:27:20,257 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 19:27:20,280 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 19:27:20,301 INFO L204 MainTranslator]: Completed translation [2024-11-10 19:27:20,301 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:27:20 WrapperNode [2024-11-10 19:27:20,302 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 19:27:20,303 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 19:27:20,303 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 19:27:20,303 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 19:27:20,310 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:27:20" (1/1) ... [2024-11-10 19:27:20,317 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:27:20" (1/1) ... [2024-11-10 19:27:20,335 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 64 [2024-11-10 19:27:20,336 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 19:27:20,337 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 19:27:20,337 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 19:27:20,337 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 19:27:20,347 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:27:20" (1/1) ... [2024-11-10 19:27:20,348 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:27:20" (1/1) ... [2024-11-10 19:27:20,349 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:27:20" (1/1) ... [2024-11-10 19:27:20,372 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]. [2024-11-10 19:27:20,375 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:27:20" (1/1) ... [2024-11-10 19:27:20,375 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:27:20" (1/1) ... [2024-11-10 19:27:20,382 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:27:20" (1/1) ... [2024-11-10 19:27:20,383 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:27:20" (1/1) ... [2024-11-10 19:27:20,384 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:27:20" (1/1) ... [2024-11-10 19:27:20,384 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:27:20" (1/1) ... [2024-11-10 19:27:20,386 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 19:27:20,389 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 19:27:20,389 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 19:27:20,390 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 19:27:20,390 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:27:20" (1/1) ... [2024-11-10 19:27:20,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 19:27:20,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:27:20,427 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 19:27:20,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 19:27:20,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 19:27:20,481 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-10 19:27:20,481 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-10 19:27:20,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 19:27:20,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 19:27:20,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 19:27:20,482 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-10 19:27:20,482 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-10 19:27:20,544 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 19:27:20,550 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 19:27:20,889 INFO L? ?]: Removed 34 outVars from TransFormulas that were not future-live. [2024-11-10 19:27:20,893 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 19:27:20,917 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 19:27:20,918 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 19:27:20,918 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 07:27:20 BoogieIcfgContainer [2024-11-10 19:27:20,918 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 19:27:20,920 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 19:27:20,920 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 19:27:20,924 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 19:27:20,924 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 07:27:20" (1/3) ... [2024-11-10 19:27:20,925 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33c3ee06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:27:20, skipping insertion in model container [2024-11-10 19:27:20,925 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:27:20" (2/3) ... [2024-11-10 19:27:20,925 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33c3ee06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:27:20, skipping insertion in model container [2024-11-10 19:27:20,925 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 07:27:20" (3/3) ... [2024-11-10 19:27:20,927 INFO L112 eAbstractionObserver]: Analyzing ICFG prodbin-ll_valuebound20.c [2024-11-10 19:27:20,939 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 19:27:20,940 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2024-11-10 19:27:20,994 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 19:27:20,999 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;@64857fd0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 19:27:21,000 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-11-10 19:27:21,003 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 39 states have (on average 1.564102564102564) internal successors, (61), 55 states have internal predecessors, (61), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-10 19:27:21,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-10 19:27:21,010 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:27:21,011 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:27:21,011 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-10 19:27:21,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:27:21,016 INFO L85 PathProgramCache]: Analyzing trace with hash 2058423889, now seen corresponding path program 1 times [2024-11-10 19:27:21,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:27:21,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825674408] [2024-11-10 19:27:21,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:27:21,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:27:21,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:21,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:27:21,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:21,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-10 19:27:21,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:21,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-10 19:27:21,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:21,193 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-10 19:27:21,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:27:21,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825674408] [2024-11-10 19:27:21,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825674408] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:27:21,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:27:21,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 19:27:21,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900368340] [2024-11-10 19:27:21,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:27:21,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 19:27:21,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:27:21,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 19:27:21,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 19:27:21,237 INFO L87 Difference]: Start difference. First operand has 63 states, 39 states have (on average 1.564102564102564) internal successors, (61), 55 states have internal predecessors, (61), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-10 19:27:21,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:27:21,264 INFO L93 Difference]: Finished difference Result 122 states and 142 transitions. [2024-11-10 19:27:21,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 19:27:21,267 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 21 [2024-11-10 19:27:21,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:27:21,274 INFO L225 Difference]: With dead ends: 122 [2024-11-10 19:27:21,275 INFO L226 Difference]: Without dead ends: 56 [2024-11-10 19:27:21,278 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 19:27:21,281 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 19:27:21,282 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 19:27:21,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-11-10 19:27:21,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2024-11-10 19:27:21,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 34 states have (on average 1.5) internal successors, (51), 49 states have internal predecessors, (51), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-10 19:27:21,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 59 transitions. [2024-11-10 19:27:21,317 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 59 transitions. Word has length 21 [2024-11-10 19:27:21,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:27:21,318 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 59 transitions. [2024-11-10 19:27:21,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-10 19:27:21,318 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 59 transitions. [2024-11-10 19:27:21,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-10 19:27:21,320 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:27:21,320 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:27:21,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 19:27:21,321 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-10 19:27:21,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:27:21,321 INFO L85 PathProgramCache]: Analyzing trace with hash -593854542, now seen corresponding path program 1 times [2024-11-10 19:27:21,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:27:21,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122258213] [2024-11-10 19:27:21,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:27:21,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:27:21,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:27:21,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1431073591] [2024-11-10 19:27:21,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:27:21,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:27:21,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:27:21,377 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:27:21,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 19:27:21,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:21,439 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-10 19:27:21,445 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:27:21,649 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-10 19:27:21,650 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:27:21,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:27:21,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122258213] [2024-11-10 19:27:21,841 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:27:21,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1431073591] [2024-11-10 19:27:21,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1431073591] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:27:21,841 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-10 19:27:21,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-10 19:27:21,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749870551] [2024-11-10 19:27:21,843 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-10 19:27:21,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 19:27:21,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:27:21,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 19:27:21,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-10 19:27:21,847 INFO L87 Difference]: Start difference. First operand 56 states and 59 transitions. Second operand has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-10 19:27:22,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:27:22,081 INFO L93 Difference]: Finished difference Result 87 states and 102 transitions. [2024-11-10 19:27:22,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 19:27:22,082 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2024-11-10 19:27:22,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:27:22,083 INFO L225 Difference]: With dead ends: 87 [2024-11-10 19:27:22,083 INFO L226 Difference]: Without dead ends: 78 [2024-11-10 19:27:22,084 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-10 19:27:22,085 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 88 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 19:27:22,085 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 85 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 19:27:22,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-11-10 19:27:22,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 73. [2024-11-10 19:27:22,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 52 states have (on average 1.4423076923076923) internal successors, (75), 65 states have internal predecessors, (75), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-10 19:27:22,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 85 transitions. [2024-11-10 19:27:22,095 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 85 transitions. Word has length 22 [2024-11-10 19:27:22,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:27:22,097 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 85 transitions. [2024-11-10 19:27:22,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-10 19:27:22,098 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 85 transitions. [2024-11-10 19:27:22,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-10 19:27:22,098 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:27:22,098 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:27:22,112 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-10 19:27:22,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:27:22,299 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-10 19:27:22,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:27:22,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1229621607, now seen corresponding path program 1 times [2024-11-10 19:27:22,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:27:22,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439072567] [2024-11-10 19:27:22,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:27:22,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:27:22,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:27:22,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [875025038] [2024-11-10 19:27:22,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:27:22,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:27:22,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:27:22,325 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:27:22,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 19:27:22,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:22,384 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-10 19:27:22,385 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:27:22,556 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-10 19:27:22,557 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 19:27:22,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:27:22,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439072567] [2024-11-10 19:27:22,561 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:27:22,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [875025038] [2024-11-10 19:27:22,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [875025038] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:27:22,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:27:22,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 19:27:22,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75310012] [2024-11-10 19:27:22,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:27:22,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 19:27:22,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:27:22,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 19:27:22,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-10 19:27:22,568 INFO L87 Difference]: Start difference. First operand 73 states and 85 transitions. Second operand has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 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) [2024-11-10 19:27:22,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:27:22,780 INFO L93 Difference]: Finished difference Result 78 states and 88 transitions. [2024-11-10 19:27:22,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 19:27:22,781 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 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 23 [2024-11-10 19:27:22,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:27:22,782 INFO L225 Difference]: With dead ends: 78 [2024-11-10 19:27:22,782 INFO L226 Difference]: Without dead ends: 71 [2024-11-10 19:27:22,782 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-10 19:27:22,783 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 77 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 19:27:22,784 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 106 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 19:27:22,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-11-10 19:27:22,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 70. [2024-11-10 19:27:22,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 51 states have (on average 1.3529411764705883) internal successors, (69), 62 states have internal predecessors, (69), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-10 19:27:22,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 79 transitions. [2024-11-10 19:27:22,794 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 79 transitions. Word has length 23 [2024-11-10 19:27:22,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:27:22,794 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 79 transitions. [2024-11-10 19:27:22,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 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) [2024-11-10 19:27:22,794 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 79 transitions. [2024-11-10 19:27:22,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-10 19:27:22,795 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:27:22,795 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:27:22,810 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-10 19:27:22,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-10 19:27:22,996 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-10 19:27:22,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:27:22,997 INFO L85 PathProgramCache]: Analyzing trace with hash 536435856, now seen corresponding path program 1 times [2024-11-10 19:27:22,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:27:22,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039404438] [2024-11-10 19:27:22,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:27:22,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:27:23,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:23,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:27:23,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:23,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-10 19:27:23,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:23,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-10 19:27:23,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:23,124 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-10 19:27:23,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:27:23,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039404438] [2024-11-10 19:27:23,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039404438] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:27:23,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:27:23,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 19:27:23,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576067145] [2024-11-10 19:27:23,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:27:23,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 19:27:23,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:27:23,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 19:27:23,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 19:27:23,127 INFO L87 Difference]: Start difference. First operand 70 states and 79 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-10 19:27:23,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:27:23,307 INFO L93 Difference]: Finished difference Result 97 states and 111 transitions. [2024-11-10 19:27:23,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 19:27:23,308 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2024-11-10 19:27:23,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:27:23,309 INFO L225 Difference]: With dead ends: 97 [2024-11-10 19:27:23,309 INFO L226 Difference]: Without dead ends: 96 [2024-11-10 19:27:23,310 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 19:27:23,311 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 32 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 19:27:23,311 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 82 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 19:27:23,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-10 19:27:23,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 87. [2024-11-10 19:27:23,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 67 states have (on average 1.373134328358209) internal successors, (92), 78 states have internal predecessors, (92), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-10 19:27:23,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 104 transitions. [2024-11-10 19:27:23,324 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 104 transitions. Word has length 24 [2024-11-10 19:27:23,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:27:23,325 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 104 transitions. [2024-11-10 19:27:23,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-10 19:27:23,325 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 104 transitions. [2024-11-10 19:27:23,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-10 19:27:23,326 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:27:23,326 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:27:23,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 19:27:23,327 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-10 19:27:23,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:27:23,327 INFO L85 PathProgramCache]: Analyzing trace with hash -550357641, now seen corresponding path program 1 times [2024-11-10 19:27:23,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:27:23,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289679430] [2024-11-10 19:27:23,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:27:23,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:27:23,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:23,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:27:23,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:23,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-10 19:27:23,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:23,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-10 19:27:23,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:23,616 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-10 19:27:23,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:27:23,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289679430] [2024-11-10 19:27:23,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289679430] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:27:23,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:27:23,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 19:27:23,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169624307] [2024-11-10 19:27:23,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:27:23,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 19:27:23,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:27:23,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 19:27:23,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 19:27:23,621 INFO L87 Difference]: Start difference. First operand 87 states and 104 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-10 19:27:23,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:27:23,945 INFO L93 Difference]: Finished difference Result 97 states and 109 transitions. [2024-11-10 19:27:23,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 19:27:23,946 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2024-11-10 19:27:23,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:27:23,947 INFO L225 Difference]: With dead ends: 97 [2024-11-10 19:27:23,947 INFO L226 Difference]: Without dead ends: 96 [2024-11-10 19:27:23,947 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 19:27:23,949 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 20 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 19:27:23,950 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 103 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 19:27:23,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-10 19:27:23,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 87. [2024-11-10 19:27:23,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 67 states have (on average 1.3432835820895523) internal successors, (90), 78 states have internal predecessors, (90), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-10 19:27:23,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 102 transitions. [2024-11-10 19:27:23,959 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 102 transitions. Word has length 25 [2024-11-10 19:27:23,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:27:23,960 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 102 transitions. [2024-11-10 19:27:23,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-10 19:27:23,960 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 102 transitions. [2024-11-10 19:27:23,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-10 19:27:23,961 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:27:23,961 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:27:23,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 19:27:23,961 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-10 19:27:23,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:27:23,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1696187594, now seen corresponding path program 1 times [2024-11-10 19:27:23,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:27:23,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587560554] [2024-11-10 19:27:23,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:27:23,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:27:23,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:24,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:27:24,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:24,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-10 19:27:24,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:24,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-10 19:27:24,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:24,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-10 19:27:24,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:24,075 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-10 19:27:24,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:27:24,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587560554] [2024-11-10 19:27:24,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587560554] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:27:24,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:27:24,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 19:27:24,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705132307] [2024-11-10 19:27:24,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:27:24,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 19:27:24,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:27:24,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 19:27:24,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 19:27:24,078 INFO L87 Difference]: Start difference. First operand 87 states and 102 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-10 19:27:24,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:27:24,139 INFO L93 Difference]: Finished difference Result 88 states and 102 transitions. [2024-11-10 19:27:24,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 19:27:24,139 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 35 [2024-11-10 19:27:24,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:27:24,140 INFO L225 Difference]: With dead ends: 88 [2024-11-10 19:27:24,140 INFO L226 Difference]: Without dead ends: 87 [2024-11-10 19:27:24,141 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-10 19:27:24,142 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 59 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 19:27:24,142 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 81 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 19:27:24,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-10 19:27:24,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2024-11-10 19:27:24,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 67 states have (on average 1.328358208955224) internal successors, (89), 78 states have internal predecessors, (89), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-10 19:27:24,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 101 transitions. [2024-11-10 19:27:24,159 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 101 transitions. Word has length 35 [2024-11-10 19:27:24,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:27:24,160 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 101 transitions. [2024-11-10 19:27:24,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-10 19:27:24,161 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 101 transitions. [2024-11-10 19:27:24,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-10 19:27:24,161 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:27:24,161 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:27:24,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 19:27:24,162 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-10 19:27:24,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:27:24,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1042207856, now seen corresponding path program 1 times [2024-11-10 19:27:24,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:27:24,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831955044] [2024-11-10 19:27:24,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:27:24,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:27:24,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:24,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:27:24,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:24,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-10 19:27:24,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:24,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-10 19:27:24,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:24,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-10 19:27:24,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:24,295 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-10 19:27:24,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:27:24,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831955044] [2024-11-10 19:27:24,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831955044] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:27:24,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:27:24,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 19:27:24,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742775343] [2024-11-10 19:27:24,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:27:24,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 19:27:24,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:27:24,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 19:27:24,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 19:27:24,299 INFO L87 Difference]: Start difference. First operand 87 states and 101 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-10 19:27:24,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:27:24,351 INFO L93 Difference]: Finished difference Result 88 states and 101 transitions. [2024-11-10 19:27:24,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 19:27:24,351 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), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 36 [2024-11-10 19:27:24,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:27:24,352 INFO L225 Difference]: With dead ends: 88 [2024-11-10 19:27:24,352 INFO L226 Difference]: Without dead ends: 87 [2024-11-10 19:27:24,353 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-10 19:27:24,354 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 57 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 19:27:24,354 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 82 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 19:27:24,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-10 19:27:24,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2024-11-10 19:27:24,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 67 states have (on average 1.3134328358208955) internal successors, (88), 78 states have internal predecessors, (88), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-10 19:27:24,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 100 transitions. [2024-11-10 19:27:24,371 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 100 transitions. Word has length 36 [2024-11-10 19:27:24,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:27:24,371 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 100 transitions. [2024-11-10 19:27:24,371 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), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-10 19:27:24,371 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 100 transitions. [2024-11-10 19:27:24,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-10 19:27:24,372 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:27:24,372 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:27:24,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 19:27:24,373 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-10 19:27:24,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:27:24,373 INFO L85 PathProgramCache]: Analyzing trace with hash 114734396, now seen corresponding path program 1 times [2024-11-10 19:27:24,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:27:24,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593629935] [2024-11-10 19:27:24,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:27:24,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:27:24,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:24,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:27:24,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:24,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-10 19:27:24,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:24,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-10 19:27:24,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:24,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-10 19:27:24,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:24,521 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-10 19:27:24,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:27:24,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593629935] [2024-11-10 19:27:24,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593629935] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:27:24,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:27:24,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 19:27:24,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952805499] [2024-11-10 19:27:24,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:27:24,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 19:27:24,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:27:24,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 19:27:24,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 19:27:24,525 INFO L87 Difference]: Start difference. First operand 87 states and 100 transitions. Second operand has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-10 19:27:24,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:27:24,576 INFO L93 Difference]: Finished difference Result 87 states and 100 transitions. [2024-11-10 19:27:24,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 19:27:24,577 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), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 39 [2024-11-10 19:27:24,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:27:24,578 INFO L225 Difference]: With dead ends: 87 [2024-11-10 19:27:24,578 INFO L226 Difference]: Without dead ends: 85 [2024-11-10 19:27:24,578 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-10 19:27:24,579 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 57 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 19:27:24,579 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 56 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 19:27:24,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-11-10 19:27:24,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 84. [2024-11-10 19:27:24,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 66 states have (on average 1.2727272727272727) internal successors, (84), 75 states have internal predecessors, (84), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-10 19:27:24,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 96 transitions. [2024-11-10 19:27:24,592 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 96 transitions. Word has length 39 [2024-11-10 19:27:24,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:27:24,592 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 96 transitions. [2024-11-10 19:27:24,593 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), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-10 19:27:24,593 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 96 transitions. [2024-11-10 19:27:24,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-10 19:27:24,596 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:27:24,596 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:27:24,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 19:27:24,597 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-10 19:27:24,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:27:24,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1723697893, now seen corresponding path program 1 times [2024-11-10 19:27:24,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:27:24,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071219906] [2024-11-10 19:27:24,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:27:24,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:27:24,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:24,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:27:24,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:24,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-10 19:27:24,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:24,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-10 19:27:24,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:24,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-10 19:27:24,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:24,685 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-10 19:27:24,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:27:24,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071219906] [2024-11-10 19:27:24,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071219906] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:27:24,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:27:24,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 19:27:24,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958979383] [2024-11-10 19:27:24,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:27:24,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 19:27:24,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:27:24,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 19:27:24,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 19:27:24,688 INFO L87 Difference]: Start difference. First operand 84 states and 96 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-10 19:27:24,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:27:24,750 INFO L93 Difference]: Finished difference Result 90 states and 103 transitions. [2024-11-10 19:27:24,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 19:27:24,751 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 41 [2024-11-10 19:27:24,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:27:24,752 INFO L225 Difference]: With dead ends: 90 [2024-11-10 19:27:24,752 INFO L226 Difference]: Without dead ends: 89 [2024-11-10 19:27:24,752 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-10 19:27:24,753 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 58 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 19:27:24,753 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 77 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 19:27:24,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-11-10 19:27:24,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 87. [2024-11-10 19:27:24,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 69 states have (on average 1.2608695652173914) internal successors, (87), 78 states have internal predecessors, (87), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-10 19:27:24,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 99 transitions. [2024-11-10 19:27:24,760 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 99 transitions. Word has length 41 [2024-11-10 19:27:24,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:27:24,761 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 99 transitions. [2024-11-10 19:27:24,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-10 19:27:24,761 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 99 transitions. [2024-11-10 19:27:24,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-10 19:27:24,762 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:27:24,762 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:27:24,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 19:27:24,762 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-10 19:27:24,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:27:24,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1895027115, now seen corresponding path program 1 times [2024-11-10 19:27:24,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:27:24,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454927550] [2024-11-10 19:27:24,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:27:24,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:27:24,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:24,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:27:24,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:24,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-10 19:27:24,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:24,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-10 19:27:24,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:24,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-10 19:27:24,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:24,843 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-10 19:27:24,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:27:24,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454927550] [2024-11-10 19:27:24,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454927550] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:27:24,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:27:24,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 19:27:24,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591082137] [2024-11-10 19:27:24,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:27:24,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 19:27:24,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:27:24,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 19:27:24,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 19:27:24,845 INFO L87 Difference]: Start difference. First operand 87 states and 99 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-10 19:27:24,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:27:24,941 INFO L93 Difference]: Finished difference Result 90 states and 102 transitions. [2024-11-10 19:27:24,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 19:27:24,941 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 42 [2024-11-10 19:27:24,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:27:24,942 INFO L225 Difference]: With dead ends: 90 [2024-11-10 19:27:24,942 INFO L226 Difference]: Without dead ends: 89 [2024-11-10 19:27:24,942 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-10 19:27:24,943 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 56 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 19:27:24,943 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 78 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 19:27:24,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-11-10 19:27:24,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 88. [2024-11-10 19:27:24,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 70 states have (on average 1.2571428571428571) internal successors, (88), 79 states have internal predecessors, (88), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-10 19:27:24,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 100 transitions. [2024-11-10 19:27:24,950 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 100 transitions. Word has length 42 [2024-11-10 19:27:24,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:27:24,950 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 100 transitions. [2024-11-10 19:27:24,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-10 19:27:24,951 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 100 transitions. [2024-11-10 19:27:24,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-10 19:27:24,951 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:27:24,951 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:27:24,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 19:27:24,952 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-10 19:27:24,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:27:24,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1514669856, now seen corresponding path program 1 times [2024-11-10 19:27:24,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:27:24,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10387729] [2024-11-10 19:27:24,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:27:24,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:27:24,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:27:24,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1894137004] [2024-11-10 19:27:24,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:27:24,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:27:24,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:27:24,979 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:27:24,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-10 19:27:25,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:25,024 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-10 19:27:25,026 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:27:25,209 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-10 19:27:25,210 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:27:26,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:27:26,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10387729] [2024-11-10 19:27:26,107 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:27:26,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1894137004] [2024-11-10 19:27:26,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1894137004] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:27:26,107 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-10 19:27:26,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-10 19:27:26,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692838875] [2024-11-10 19:27:26,107 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-10 19:27:26,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 19:27:26,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:27:26,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 19:27:26,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-11-10 19:27:26,109 INFO L87 Difference]: Start difference. First operand 88 states and 100 transitions. Second operand has 8 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-10 19:27:26,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:27:26,272 INFO L93 Difference]: Finished difference Result 98 states and 109 transitions. [2024-11-10 19:27:26,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 19:27:26,273 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 43 [2024-11-10 19:27:26,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:27:26,274 INFO L225 Difference]: With dead ends: 98 [2024-11-10 19:27:26,274 INFO L226 Difference]: Without dead ends: 94 [2024-11-10 19:27:26,274 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-11-10 19:27:26,275 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 128 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 19:27:26,275 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 91 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 19:27:26,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-10 19:27:26,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 90. [2024-11-10 19:27:26,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 72 states have (on average 1.2361111111111112) internal successors, (89), 81 states have internal predecessors, (89), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-10 19:27:26,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 101 transitions. [2024-11-10 19:27:26,281 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 101 transitions. Word has length 43 [2024-11-10 19:27:26,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:27:26,282 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 101 transitions. [2024-11-10 19:27:26,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-10 19:27:26,282 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 101 transitions. [2024-11-10 19:27:26,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-10 19:27:26,283 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:27:26,283 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:27:26,300 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-10 19:27:26,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:27:26,487 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-10 19:27:26,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:27:26,488 INFO L85 PathProgramCache]: Analyzing trace with hash 54923465, now seen corresponding path program 1 times [2024-11-10 19:27:26,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:27:26,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293594618] [2024-11-10 19:27:26,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:27:26,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:27:26,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:26,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:27:26,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:26,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-10 19:27:26,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:26,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-10 19:27:26,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:26,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-10 19:27:26,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:26,573 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-10 19:27:26,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:27:26,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293594618] [2024-11-10 19:27:26,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293594618] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:27:26,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:27:26,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 19:27:26,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066392595] [2024-11-10 19:27:26,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:27:26,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 19:27:26,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:27:26,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 19:27:26,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 19:27:26,575 INFO L87 Difference]: Start difference. First operand 90 states and 101 transitions. Second operand has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-10 19:27:26,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:27:26,675 INFO L93 Difference]: Finished difference Result 98 states and 110 transitions. [2024-11-10 19:27:26,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 19:27:26,675 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 44 [2024-11-10 19:27:26,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:27:26,676 INFO L225 Difference]: With dead ends: 98 [2024-11-10 19:27:26,677 INFO L226 Difference]: Without dead ends: 96 [2024-11-10 19:27:26,677 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-10 19:27:26,677 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 54 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 19:27:26,678 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 76 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 19:27:26,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-10 19:27:26,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 84. [2024-11-10 19:27:26,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 68 states have (on average 1.1911764705882353) internal successors, (81), 75 states have internal predecessors, (81), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-10 19:27:26,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 93 transitions. [2024-11-10 19:27:26,683 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 93 transitions. Word has length 44 [2024-11-10 19:27:26,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:27:26,684 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 93 transitions. [2024-11-10 19:27:26,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-10 19:27:26,684 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 93 transitions. [2024-11-10 19:27:26,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-10 19:27:26,687 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:27:26,688 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:27:26,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-10 19:27:26,688 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-10 19:27:26,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:27:26,688 INFO L85 PathProgramCache]: Analyzing trace with hash 289874731, now seen corresponding path program 1 times [2024-11-10 19:27:26,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:27:26,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834867962] [2024-11-10 19:27:26,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:27:26,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:27:26,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:27:26,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1262128910] [2024-11-10 19:27:26,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:27:26,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:27:26,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:27:26,712 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:27:26,714 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-10 19:27:26,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:26,761 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-10 19:27:26,763 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:27:27,654 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-10 19:27:27,654 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:27:28,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:27:28,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834867962] [2024-11-10 19:27:28,674 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:27:28,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1262128910] [2024-11-10 19:27:28,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1262128910] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:27:28,675 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-10 19:27:28,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-10 19:27:28,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642525776] [2024-11-10 19:27:28,675 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-10 19:27:28,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-10 19:27:28,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:27:28,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-10 19:27:28,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2024-11-10 19:27:28,677 INFO L87 Difference]: Start difference. First operand 84 states and 93 transitions. Second operand has 12 states, 11 states have (on average 3.0) internal successors, (33), 11 states have internal predecessors, (33), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-10 19:27:32,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.67s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-10 19:27:33,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:27:33,586 INFO L93 Difference]: Finished difference Result 116 states and 137 transitions. [2024-11-10 19:27:33,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-10 19:27:33,587 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.0) internal successors, (33), 11 states have internal predecessors, (33), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 44 [2024-11-10 19:27:33,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:27:33,587 INFO L225 Difference]: With dead ends: 116 [2024-11-10 19:27:33,588 INFO L226 Difference]: Without dead ends: 112 [2024-11-10 19:27:33,588 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=172, Invalid=428, Unknown=0, NotChecked=0, Total=600 [2024-11-10 19:27:33,588 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 91 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-10 19:27:33,589 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 108 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-10 19:27:33,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-10 19:27:33,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 90. [2024-11-10 19:27:33,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 76 states have (on average 1.118421052631579) internal successors, (85), 81 states have internal predecessors, (85), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-10 19:27:33,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 97 transitions. [2024-11-10 19:27:33,596 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 97 transitions. Word has length 44 [2024-11-10 19:27:33,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:27:33,596 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 97 transitions. [2024-11-10 19:27:33,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.0) internal successors, (33), 11 states have internal predecessors, (33), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-10 19:27:33,597 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 97 transitions. [2024-11-10 19:27:33,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-10 19:27:33,598 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:27:33,598 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:27:33,614 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-10 19:27:33,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:27:33,798 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-10 19:27:33,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:27:33,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1103445019, now seen corresponding path program 1 times [2024-11-10 19:27:33,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:27:33,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491187480] [2024-11-10 19:27:33,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:27:33,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:27:33,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:27:33,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [366566411] [2024-11-10 19:27:33,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:27:33,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:27:33,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:27:33,823 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:27:33,826 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-10 19:27:33,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:33,873 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-10 19:27:33,875 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:27:34,493 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-10 19:27:34,494 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:27:36,004 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-10 19:27:36,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:27:36,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491187480] [2024-11-10 19:27:36,005 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:27:36,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [366566411] [2024-11-10 19:27:36,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [366566411] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 19:27:36,006 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-10 19:27:36,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 15 [2024-11-10 19:27:36,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964493707] [2024-11-10 19:27:36,006 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-10 19:27:36,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-10 19:27:36,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:27:36,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-10 19:27:36,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2024-11-10 19:27:36,007 INFO L87 Difference]: Start difference. First operand 90 states and 97 transitions. Second operand has 16 states, 15 states have (on average 4.2) internal successors, (63), 16 states have internal predecessors, (63), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-10 19:27:38,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:27:38,644 INFO L93 Difference]: Finished difference Result 115 states and 131 transitions. [2024-11-10 19:27:38,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-10 19:27:38,645 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.2) internal successors, (63), 16 states have internal predecessors, (63), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 50 [2024-11-10 19:27:38,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:27:38,645 INFO L225 Difference]: With dead ends: 115 [2024-11-10 19:27:38,645 INFO L226 Difference]: Without dead ends: 114 [2024-11-10 19:27:38,646 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=214, Invalid=542, Unknown=0, NotChecked=0, Total=756 [2024-11-10 19:27:38,646 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 106 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-10 19:27:38,646 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 126 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-10 19:27:38,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-10 19:27:38,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 79. [2024-11-10 19:27:38,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 66 states have (on average 1.121212121212121) internal successors, (74), 70 states have internal predecessors, (74), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-10 19:27:38,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 86 transitions. [2024-11-10 19:27:38,654 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 86 transitions. Word has length 50 [2024-11-10 19:27:38,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:27:38,655 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 86 transitions. [2024-11-10 19:27:38,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.2) internal successors, (63), 16 states have internal predecessors, (63), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-10 19:27:38,655 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 86 transitions. [2024-11-10 19:27:38,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-10 19:27:38,656 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:27:38,656 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:27:38,675 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-10 19:27:38,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-10 19:27:38,857 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-10 19:27:38,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:27:38,857 INFO L85 PathProgramCache]: Analyzing trace with hash 152942788, now seen corresponding path program 1 times [2024-11-10 19:27:38,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:27:38,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323285988] [2024-11-10 19:27:38,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:27:38,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:27:38,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:39,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:27:39,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:39,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-10 19:27:39,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:39,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-10 19:27:39,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:39,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-10 19:27:39,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:39,055 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-10 19:27:39,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:27:39,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323285988] [2024-11-10 19:27:39,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323285988] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:27:39,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [206580377] [2024-11-10 19:27:39,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:27:39,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:27:39,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:27:39,061 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:27:39,062 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-10 19:27:39,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:39,108 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-10 19:27:39,109 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:27:39,206 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-10 19:27:39,206 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:27:39,317 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-10 19:27:39,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [206580377] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 19:27:39,318 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 19:27:39,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2024-11-10 19:27:39,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606902232] [2024-11-10 19:27:39,318 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 19:27:39,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 19:27:39,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:27:39,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 19:27:39,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-10 19:27:39,319 INFO L87 Difference]: Start difference. First operand 79 states and 86 transitions. Second operand has 13 states, 12 states have (on average 6.166666666666667) internal successors, (74), 13 states have internal predecessors, (74), 6 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) [2024-11-10 19:27:39,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:27:39,496 INFO L93 Difference]: Finished difference Result 85 states and 94 transitions. [2024-11-10 19:27:39,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 19:27:39,496 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.166666666666667) internal successors, (74), 13 states have internal predecessors, (74), 6 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) Word has length 51 [2024-11-10 19:27:39,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:27:39,497 INFO L225 Difference]: With dead ends: 85 [2024-11-10 19:27:39,497 INFO L226 Difference]: Without dead ends: 83 [2024-11-10 19:27:39,497 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 101 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2024-11-10 19:27:39,498 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 140 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 19:27:39,498 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 95 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 19:27:39,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-11-10 19:27:39,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 77. [2024-11-10 19:27:39,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 66 states have (on average 1.0909090909090908) internal successors, (72), 68 states have internal predecessors, (72), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-10 19:27:39,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 84 transitions. [2024-11-10 19:27:39,504 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 84 transitions. Word has length 51 [2024-11-10 19:27:39,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:27:39,505 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 84 transitions. [2024-11-10 19:27:39,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.166666666666667) internal successors, (74), 13 states have internal predecessors, (74), 6 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) [2024-11-10 19:27:39,505 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 84 transitions. [2024-11-10 19:27:39,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-10 19:27:39,505 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:27:39,506 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:27:39,522 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-10 19:27:39,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-10 19:27:39,707 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-10 19:27:39,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:27:39,708 INFO L85 PathProgramCache]: Analyzing trace with hash 446259139, now seen corresponding path program 1 times [2024-11-10 19:27:39,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:27:39,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765154033] [2024-11-10 19:27:39,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:27:39,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:27:39,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:27:39,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [225409259] [2024-11-10 19:27:39,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:27:39,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:27:39,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:27:39,736 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:27:39,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-10 19:27:39,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:39,781 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-10 19:27:39,786 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:27:40,169 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-10 19:27:40,169 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:27:54,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:27:54,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765154033] [2024-11-10 19:27:54,160 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:27:54,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [225409259] [2024-11-10 19:27:54,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [225409259] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:27:54,160 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-10 19:27:54,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-10 19:27:54,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852280443] [2024-11-10 19:27:54,160 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-10 19:27:54,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 19:27:54,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:27:54,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 19:27:54,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=360, Unknown=2, NotChecked=0, Total=462 [2024-11-10 19:27:54,161 INFO L87 Difference]: Start difference. First operand 77 states and 84 transitions. Second operand has 13 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 12 states have internal predecessors, (41), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-10 19:27:54,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:27:54,591 INFO L93 Difference]: Finished difference Result 105 states and 114 transitions. [2024-11-10 19:27:54,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-10 19:27:54,592 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 12 states have internal predecessors, (41), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 52 [2024-11-10 19:27:54,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:27:54,593 INFO L225 Difference]: With dead ends: 105 [2024-11-10 19:27:54,593 INFO L226 Difference]: Without dead ends: 103 [2024-11-10 19:27:54,594 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 13.5s TimeCoverageRelationStatistics Valid=221, Invalid=647, Unknown=2, NotChecked=0, Total=870 [2024-11-10 19:27:54,594 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 136 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 19:27:54,595 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 173 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 19:27:54,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-11-10 19:27:54,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 96. [2024-11-10 19:27:54,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 84 states have (on average 1.0833333333333333) internal successors, (91), 86 states have internal predecessors, (91), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-10 19:27:54,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 105 transitions. [2024-11-10 19:27:54,603 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 105 transitions. Word has length 52 [2024-11-10 19:27:54,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:27:54,603 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 105 transitions. [2024-11-10 19:27:54,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 12 states have internal predecessors, (41), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-10 19:27:54,603 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 105 transitions. [2024-11-10 19:27:54,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-10 19:27:54,604 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:27:54,604 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:27:54,617 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-10 19:27:54,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:27:54,808 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-10 19:27:54,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:27:54,809 INFO L85 PathProgramCache]: Analyzing trace with hash 723625246, now seen corresponding path program 1 times [2024-11-10 19:27:54,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:27:54,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097650869] [2024-11-10 19:27:54,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:27:54,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:27:54,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:54,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:27:54,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:54,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-10 19:27:54,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:54,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-10 19:27:54,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:54,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-10 19:27:54,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:54,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-10 19:27:54,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:54,882 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-10 19:27:54,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:27:54,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097650869] [2024-11-10 19:27:54,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097650869] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:27:54,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:27:54,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 19:27:54,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966338219] [2024-11-10 19:27:54,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:27:54,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 19:27:54,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:27:54,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 19:27:54,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-10 19:27:54,884 INFO L87 Difference]: Start difference. First operand 96 states and 105 transitions. Second operand has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-10 19:27:54,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:27:54,929 INFO L93 Difference]: Finished difference Result 102 states and 111 transitions. [2024-11-10 19:27:54,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 19:27:54,929 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 57 [2024-11-10 19:27:54,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:27:54,930 INFO L225 Difference]: With dead ends: 102 [2024-11-10 19:27:54,930 INFO L226 Difference]: Without dead ends: 101 [2024-11-10 19:27:54,930 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-10 19:27:54,931 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 6 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 19:27:54,931 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 100 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 19:27:54,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-10 19:27:54,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 96. [2024-11-10 19:27:54,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 84 states have (on average 1.0833333333333333) internal successors, (91), 86 states have internal predecessors, (91), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-10 19:27:54,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 105 transitions. [2024-11-10 19:27:54,939 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 105 transitions. Word has length 57 [2024-11-10 19:27:54,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:27:54,939 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 105 transitions. [2024-11-10 19:27:54,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-10 19:27:54,939 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 105 transitions. [2024-11-10 19:27:54,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-10 19:27:54,940 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:27:54,940 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:27:54,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-10 19:27:54,940 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-10 19:27:54,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:27:54,941 INFO L85 PathProgramCache]: Analyzing trace with hash 420931545, now seen corresponding path program 1 times [2024-11-10 19:27:54,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:27:54,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228398412] [2024-11-10 19:27:54,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:27:54,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:27:54,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:55,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:27:55,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:55,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-10 19:27:55,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:55,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-10 19:27:55,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:55,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-10 19:27:55,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:55,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-10 19:27:55,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:55,025 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-10 19:27:55,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:27:55,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228398412] [2024-11-10 19:27:55,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228398412] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:27:55,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [917025820] [2024-11-10 19:27:55,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:27:55,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:27:55,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:27:55,029 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:27:55,030 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-10 19:27:55,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:55,074 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 19:27:55,075 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:27:55,136 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-10 19:27:55,136 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:27:55,201 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-10 19:27:55,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [917025820] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 19:27:55,201 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 19:27:55,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-10 19:27:55,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946951688] [2024-11-10 19:27:55,202 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 19:27:55,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 19:27:55,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:27:55,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 19:27:55,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-10 19:27:55,203 INFO L87 Difference]: Start difference. First operand 96 states and 105 transitions. Second operand has 8 states, 7 states have (on average 11.571428571428571) internal successors, (81), 8 states have internal predecessors, (81), 6 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2024-11-10 19:27:55,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:27:55,292 INFO L93 Difference]: Finished difference Result 214 states and 239 transitions. [2024-11-10 19:27:55,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 19:27:55,292 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.571428571428571) internal successors, (81), 8 states have internal predecessors, (81), 6 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) Word has length 63 [2024-11-10 19:27:55,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:27:55,294 INFO L225 Difference]: With dead ends: 214 [2024-11-10 19:27:55,294 INFO L226 Difference]: Without dead ends: 213 [2024-11-10 19:27:55,294 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2024-11-10 19:27:55,295 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 140 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 19:27:55,295 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 126 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 19:27:55,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2024-11-10 19:27:55,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 203. [2024-11-10 19:27:55,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 186 states have (on average 1.086021505376344) internal successors, (202), 188 states have internal predecessors, (202), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-10 19:27:55,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 226 transitions. [2024-11-10 19:27:55,314 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 226 transitions. Word has length 63 [2024-11-10 19:27:55,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:27:55,314 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 226 transitions. [2024-11-10 19:27:55,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.571428571428571) internal successors, (81), 8 states have internal predecessors, (81), 6 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2024-11-10 19:27:55,314 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 226 transitions. [2024-11-10 19:27:55,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-10 19:27:55,315 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:27:55,315 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:27:55,330 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-10 19:27:55,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-10 19:27:55,516 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-10 19:27:55,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:27:55,516 INFO L85 PathProgramCache]: Analyzing trace with hash 2002092733, now seen corresponding path program 1 times [2024-11-10 19:27:55,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:27:55,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146515917] [2024-11-10 19:27:55,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:27:55,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:27:55,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:27:55,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [680818754] [2024-11-10 19:27:55,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:27:55,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:27:55,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:27:55,537 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:27:55,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-10 19:27:55,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:55,584 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-10 19:27:55,586 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:27:56,655 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-10 19:27:56,655 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:28:52,324 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 12 proven. 20 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-10 19:28:52,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:28:52,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146515917] [2024-11-10 19:28:52,324 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:28:52,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [680818754] [2024-11-10 19:28:52,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [680818754] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 19:28:52,325 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-10 19:28:52,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13] total 26 [2024-11-10 19:28:52,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417061792] [2024-11-10 19:28:52,325 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-10 19:28:52,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-10 19:28:52,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:28:52,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-10 19:28:52,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=552, Unknown=0, NotChecked=0, Total=702 [2024-11-10 19:28:52,327 INFO L87 Difference]: Start difference. First operand 203 states and 226 transitions. Second operand has 27 states, 26 states have (on average 4.0) internal successors, (104), 26 states have internal predecessors, (104), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-11-10 19:28:54,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []