./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/nla-digbench-scaling/ps5-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/ps5-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 7921702b8cbecd5225031321150d70ea7b40d7d08ee6ac9909ff47d4f7b99139 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 19:33:00,643 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 19:33:00,690 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-10 19:33:00,694 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 19:33:00,695 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 19:33:00,718 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 19:33:00,718 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 19:33:00,719 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 19:33:00,719 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 19:33:00,720 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 19:33:00,721 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 19:33:00,721 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 19:33:00,721 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 19:33:00,721 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 19:33:00,723 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 19:33:00,724 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 19:33:00,724 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 19:33:00,724 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 19:33:00,724 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 19:33:00,725 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 19:33:00,725 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 19:33:00,725 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 19:33:00,726 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 19:33:00,729 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 19:33:00,729 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 19:33:00,729 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-10 19:33:00,730 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 19:33:00,730 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 19:33:00,730 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 19:33:00,730 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 19:33:00,730 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 19:33:00,731 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 19:33:00,731 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 19:33:00,731 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 19:33:00,731 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 19:33:00,731 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 19:33:00,732 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 19:33:00,732 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 19:33:00,732 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 19:33:00,732 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 19:33:00,733 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 19:33:00,734 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 19:33:00,734 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 19:33:00,735 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 19:33:00,735 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7921702b8cbecd5225031321150d70ea7b40d7d08ee6ac9909ff47d4f7b99139 [2024-11-10 19:33:00,930 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 19:33:00,960 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 19:33:00,964 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 19:33:00,965 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 19:33:00,965 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 19:33:00,966 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound20.c [2024-11-10 19:33:02,187 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 19:33:02,353 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 19:33:02,353 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound20.c [2024-11-10 19:33:02,358 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98e317ed1/6b816b8317e640529aafaa3b22bb4967/FLAG85fc8c1b0 [2024-11-10 19:33:02,781 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98e317ed1/6b816b8317e640529aafaa3b22bb4967 [2024-11-10 19:33:02,783 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 19:33:02,785 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 19:33:02,786 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 19:33:02,786 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 19:33:02,790 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 19:33:02,790 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:33:02" (1/1) ... [2024-11-10 19:33:02,791 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d553617 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:33:02, skipping insertion in model container [2024-11-10 19:33:02,791 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:33:02" (1/1) ... [2024-11-10 19:33:02,815 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 19:33:02,980 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 19:33:02,991 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 19:33:03,011 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 19:33:03,026 INFO L204 MainTranslator]: Completed translation [2024-11-10 19:33:03,026 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:33:03 WrapperNode [2024-11-10 19:33:03,026 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 19:33:03,027 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 19:33:03,027 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 19:33:03,027 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 19:33:03,032 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:33:03" (1/1) ... [2024-11-10 19:33:03,039 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:33:03" (1/1) ... [2024-11-10 19:33:03,068 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 125 [2024-11-10 19:33:03,090 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 19:33:03,091 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 19:33:03,091 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 19:33:03,091 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 19:33:03,103 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:33:03" (1/1) ... [2024-11-10 19:33:03,103 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:33:03" (1/1) ... [2024-11-10 19:33:03,104 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:33:03" (1/1) ... [2024-11-10 19:33:03,118 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 19:33:03,118 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:33:03" (1/1) ... [2024-11-10 19:33:03,118 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:33:03" (1/1) ... [2024-11-10 19:33:03,121 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:33:03" (1/1) ... [2024-11-10 19:33:03,124 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:33:03" (1/1) ... [2024-11-10 19:33:03,125 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:33:03" (1/1) ... [2024-11-10 19:33:03,126 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:33:03" (1/1) ... [2024-11-10 19:33:03,127 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 19:33:03,131 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 19:33:03,132 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 19:33:03,132 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 19:33:03,132 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:33:03" (1/1) ... [2024-11-10 19:33:03,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 19:33:03,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:33:03,174 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 19:33:03,179 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 19:33:03,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 19:33:03,207 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-10 19:33:03,207 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-10 19:33:03,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 19:33:03,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 19:33:03,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 19:33:03,207 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-10 19:33:03,207 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-10 19:33:03,250 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 19:33:03,252 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 19:33:03,607 INFO L? ?]: Removed 89 outVars from TransFormulas that were not future-live. [2024-11-10 19:33:03,608 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 19:33:03,633 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 19:33:03,634 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 19:33:03,635 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 07:33:03 BoogieIcfgContainer [2024-11-10 19:33:03,635 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 19:33:03,637 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 19:33:03,637 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 19:33:03,639 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 19:33:03,639 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 07:33:02" (1/3) ... [2024-11-10 19:33:03,640 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74f38d26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:33:03, skipping insertion in model container [2024-11-10 19:33:03,640 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:33:03" (2/3) ... [2024-11-10 19:33:03,641 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74f38d26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:33:03, skipping insertion in model container [2024-11-10 19:33:03,641 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 07:33:03" (3/3) ... [2024-11-10 19:33:03,642 INFO L112 eAbstractionObserver]: Analyzing ICFG ps5-ll_valuebound20.c [2024-11-10 19:33:03,653 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 19:33:03,654 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 84 error locations. [2024-11-10 19:33:03,699 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 19:33:03,703 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;@bdabd2a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 19:33:03,704 INFO L334 AbstractCegarLoop]: Starting to check reachability of 84 error locations. [2024-11-10 19:33:03,707 INFO L276 IsEmpty]: Start isEmpty. Operand has 196 states, 104 states have (on average 1.8557692307692308) internal successors, (193), 188 states have internal predecessors, (193), 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 19:33:03,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-10 19:33:03,711 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:33:03,712 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:33:03,712 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-10 19:33:03,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:33:03,715 INFO L85 PathProgramCache]: Analyzing trace with hash -913458795, now seen corresponding path program 1 times [2024-11-10 19:33:03,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:33:03,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169279729] [2024-11-10 19:33:03,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:33:03,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:33:03,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:33:03,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:33:03,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:33:03,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 19:33:03,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:33:03,814 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 19:33:03,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:33:03,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169279729] [2024-11-10 19:33:03,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169279729] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:33:03,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:33:03,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 19:33:03,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80334931] [2024-11-10 19:33:03,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:33:03,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 19:33:03,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:33:03,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 19:33:03,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 19:33:03,837 INFO L87 Difference]: Start difference. First operand has 196 states, 104 states have (on average 1.8557692307692308) internal successors, (193), 188 states have internal predecessors, (193), 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 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-10 19:33:03,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:33:03,859 INFO L93 Difference]: Finished difference Result 375 states and 406 transitions. [2024-11-10 19:33:03,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 19:33:03,861 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 15 [2024-11-10 19:33:03,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:33:03,866 INFO L225 Difference]: With dead ends: 375 [2024-11-10 19:33:03,866 INFO L226 Difference]: Without dead ends: 176 [2024-11-10 19:33:03,869 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 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 19:33:03,871 INFO L432 NwaCegarLoop]: 185 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, 185 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 19:33:03,871 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 19:33:03,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2024-11-10 19:33:03,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2024-11-10 19:33:03,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 99 states have (on average 1.7171717171717171) internal successors, (170), 169 states have internal predecessors, (170), 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 19:33:03,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 178 transitions. [2024-11-10 19:33:03,902 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 178 transitions. Word has length 15 [2024-11-10 19:33:03,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:33:03,902 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 178 transitions. [2024-11-10 19:33:03,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-10 19:33:03,902 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 178 transitions. [2024-11-10 19:33:03,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-10 19:33:03,903 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:33:03,903 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:33:03,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 19:33:03,904 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr83ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-10 19:33:03,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:33:03,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1530830152, now seen corresponding path program 1 times [2024-11-10 19:33:03,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:33:03,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816363980] [2024-11-10 19:33:03,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:33:03,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:33:03,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:33:03,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:33:03,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:33:03,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 19:33:03,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:33:03,953 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 19:33:03,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:33:03,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816363980] [2024-11-10 19:33:03,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816363980] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:33:03,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:33:03,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 19:33:03,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923693697] [2024-11-10 19:33:03,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:33:03,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 19:33:03,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:33:03,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 19:33:03,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 19:33:03,956 INFO L87 Difference]: Start difference. First operand 176 states and 178 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-10 19:33:04,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:33:04,490 INFO L93 Difference]: Finished difference Result 316 states and 328 transitions. [2024-11-10 19:33:04,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 19:33:04,491 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2024-11-10 19:33:04,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:33:04,493 INFO L225 Difference]: With dead ends: 316 [2024-11-10 19:33:04,493 INFO L226 Difference]: Without dead ends: 260 [2024-11-10 19:33:04,493 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 19:33:04,495 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 84 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 19:33:04,495 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 132 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 19:33:04,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2024-11-10 19:33:04,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 253. [2024-11-10 19:33:04,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 175 states have (on average 1.4857142857142858) internal successors, (260), 245 states have internal predecessors, (260), 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 19:33:04,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 270 transitions. [2024-11-10 19:33:04,513 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 270 transitions. Word has length 16 [2024-11-10 19:33:04,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:33:04,514 INFO L471 AbstractCegarLoop]: Abstraction has 253 states and 270 transitions. [2024-11-10 19:33:04,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-10 19:33:04,514 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 270 transitions. [2024-11-10 19:33:04,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-10 19:33:04,515 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:33:04,515 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:33:04,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 19:33:04,516 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-10 19:33:04,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:33:04,516 INFO L85 PathProgramCache]: Analyzing trace with hash 2113793116, now seen corresponding path program 1 times [2024-11-10 19:33:04,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:33:04,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602293432] [2024-11-10 19:33:04,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:33:04,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:33:04,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:33:04,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:33:04,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:33:04,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 19:33:04,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:33:04,601 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 19:33:04,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:33:04,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602293432] [2024-11-10 19:33:04,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602293432] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:33:04,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:33:04,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 19:33:04,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262225547] [2024-11-10 19:33:04,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:33:04,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 19:33:04,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:33:04,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 19:33:04,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 19:33:04,604 INFO L87 Difference]: Start difference. First operand 253 states and 270 transitions. Second operand has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-10 19:33:04,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:33:04,676 INFO L93 Difference]: Finished difference Result 274 states and 286 transitions. [2024-11-10 19:33:04,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 19:33:04,676 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 44 [2024-11-10 19:33:04,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:33:04,678 INFO L225 Difference]: With dead ends: 274 [2024-11-10 19:33:04,680 INFO L226 Difference]: Without dead ends: 269 [2024-11-10 19:33:04,680 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 19:33:04,681 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 61 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 19:33:04,681 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 302 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 19:33:04,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2024-11-10 19:33:04,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 261. [2024-11-10 19:33:04,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 183 states have (on average 1.46448087431694) internal successors, (268), 253 states have internal predecessors, (268), 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 19:33:04,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 278 transitions. [2024-11-10 19:33:04,701 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 278 transitions. Word has length 44 [2024-11-10 19:33:04,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:33:04,702 INFO L471 AbstractCegarLoop]: Abstraction has 261 states and 278 transitions. [2024-11-10 19:33:04,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-10 19:33:04,702 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 278 transitions. [2024-11-10 19:33:04,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-10 19:33:04,703 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:33:04,703 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:33:04,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 19:33:04,704 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-10 19:33:04,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:33:04,704 INFO L85 PathProgramCache]: Analyzing trace with hash -164343686, now seen corresponding path program 1 times [2024-11-10 19:33:04,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:33:04,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439370986] [2024-11-10 19:33:04,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:33:04,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:33:04,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:33:04,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:33:04,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:33:04,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 19:33:04,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:33:04,820 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 19:33:04,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:33:04,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439370986] [2024-11-10 19:33:04,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439370986] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:33:04,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:33:04,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 19:33:04,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861498992] [2024-11-10 19:33:04,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:33:04,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 19:33:04,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:33:04,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 19:33:04,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 19:33:04,822 INFO L87 Difference]: Start difference. First operand 261 states and 278 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-10 19:33:05,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:33:05,467 INFO L93 Difference]: Finished difference Result 273 states and 281 transitions. [2024-11-10 19:33:05,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 19:33:05,468 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 46 [2024-11-10 19:33:05,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:33:05,469 INFO L225 Difference]: With dead ends: 273 [2024-11-10 19:33:05,469 INFO L226 Difference]: Without dead ends: 268 [2024-11-10 19:33:05,469 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 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 19:33:05,470 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 85 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-10 19:33:05,471 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 262 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-10 19:33:05,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2024-11-10 19:33:05,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 261. [2024-11-10 19:33:05,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 183 states have (on average 1.4371584699453552) internal successors, (263), 253 states have internal predecessors, (263), 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 19:33:05,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 273 transitions. [2024-11-10 19:33:05,478 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 273 transitions. Word has length 46 [2024-11-10 19:33:05,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:33:05,479 INFO L471 AbstractCegarLoop]: Abstraction has 261 states and 273 transitions. [2024-11-10 19:33:05,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-10 19:33:05,480 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 273 transitions. [2024-11-10 19:33:05,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-10 19:33:05,480 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:33:05,480 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:33:05,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 19:33:05,481 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-10 19:33:05,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:33:05,481 INFO L85 PathProgramCache]: Analyzing trace with hash -799686885, now seen corresponding path program 1 times [2024-11-10 19:33:05,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:33:05,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602086417] [2024-11-10 19:33:05,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:33:05,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:33:05,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:33:05,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:33:05,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:33:05,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 19:33:05,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:33:05,587 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 19:33:05,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:33:05,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602086417] [2024-11-10 19:33:05,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602086417] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:33:05,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:33:05,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 19:33:05,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937484847] [2024-11-10 19:33:05,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:33:05,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 19:33:05,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:33:05,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 19:33:05,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 19:33:05,588 INFO L87 Difference]: Start difference. First operand 261 states and 273 transitions. Second operand has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-10 19:33:05,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:33:05,907 INFO L93 Difference]: Finished difference Result 272 states and 276 transitions. [2024-11-10 19:33:05,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 19:33:05,907 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 47 [2024-11-10 19:33:05,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:33:05,908 INFO L225 Difference]: With dead ends: 272 [2024-11-10 19:33:05,908 INFO L226 Difference]: Without dead ends: 234 [2024-11-10 19:33:05,909 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 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 19:33:05,909 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 86 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 19:33:05,910 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 275 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 19:33:05,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2024-11-10 19:33:05,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 227. [2024-11-10 19:33:05,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 149 states have (on average 1.5100671140939597) internal successors, (225), 219 states have internal predecessors, (225), 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 19:33:05,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 235 transitions. [2024-11-10 19:33:05,916 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 235 transitions. Word has length 47 [2024-11-10 19:33:05,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:33:05,917 INFO L471 AbstractCegarLoop]: Abstraction has 227 states and 235 transitions. [2024-11-10 19:33:05,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-10 19:33:05,917 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 235 transitions. [2024-11-10 19:33:05,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-10 19:33:05,918 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:33:05,918 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:33:05,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 19:33:05,918 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-10 19:33:05,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:33:05,919 INFO L85 PathProgramCache]: Analyzing trace with hash 618712278, now seen corresponding path program 1 times [2024-11-10 19:33:05,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:33:05,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809650535] [2024-11-10 19:33:05,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:33:05,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:33:05,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:33:05,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:33:05,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:33:05,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 19:33:05,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:33:05,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-10 19:33:05,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:33:05,977 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 19:33:05,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:33:05,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809650535] [2024-11-10 19:33:05,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809650535] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:33:05,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:33:05,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 19:33:05,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960784602] [2024-11-10 19:33:05,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:33:05,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 19:33:05,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:33:05,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 19:33:05,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 19:33:05,979 INFO L87 Difference]: Start difference. First operand 227 states and 235 transitions. Second operand has 3 states, 2 states have (on average 23.5) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-10 19:33:06,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:33:06,003 INFO L93 Difference]: Finished difference Result 229 states and 235 transitions. [2024-11-10 19:33:06,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 19:33:06,003 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 23.5) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 56 [2024-11-10 19:33:06,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:33:06,004 INFO L225 Difference]: With dead ends: 229 [2024-11-10 19:33:06,004 INFO L226 Difference]: Without dead ends: 227 [2024-11-10 19:33:06,005 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 19:33:06,005 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 2 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 19:33:06,005 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 343 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 19:33:06,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2024-11-10 19:33:06,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2024-11-10 19:33:06,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 149 states have (on average 1.4966442953020134) internal successors, (223), 219 states have internal predecessors, (223), 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 19:33:06,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 233 transitions. [2024-11-10 19:33:06,011 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 233 transitions. Word has length 56 [2024-11-10 19:33:06,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:33:06,012 INFO L471 AbstractCegarLoop]: Abstraction has 227 states and 233 transitions. [2024-11-10 19:33:06,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 23.5) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-10 19:33:06,012 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 233 transitions. [2024-11-10 19:33:06,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-10 19:33:06,028 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:33:06,028 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:33:06,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 19:33:06,028 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-10 19:33:06,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:33:06,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1337653649, now seen corresponding path program 1 times [2024-11-10 19:33:06,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:33:06,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595103128] [2024-11-10 19:33:06,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:33:06,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:33:06,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:33:06,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [302048681] [2024-11-10 19:33:06,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:33:06,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:33:06,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:33:06,053 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 19:33:06,055 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 19:33:06,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:33:06,095 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 19:33:06,098 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:33:06,204 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 19:33:06,205 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 19:33:06,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:33:06,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595103128] [2024-11-10 19:33:06,205 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:33:06,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [302048681] [2024-11-10 19:33:06,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [302048681] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:33:06,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:33:06,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 19:33:06,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119835291] [2024-11-10 19:33:06,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:33:06,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 19:33:06,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:33:06,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 19:33:06,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 19:33:06,207 INFO L87 Difference]: Start difference. First operand 227 states and 233 transitions. Second operand has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-10 19:33:06,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:33:06,503 INFO L93 Difference]: Finished difference Result 370 states and 386 transitions. [2024-11-10 19:33:06,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 19:33:06,504 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 63 [2024-11-10 19:33:06,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:33:06,505 INFO L225 Difference]: With dead ends: 370 [2024-11-10 19:33:06,506 INFO L226 Difference]: Without dead ends: 316 [2024-11-10 19:33:06,507 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 19:33:06,508 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 94 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 19:33:06,509 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 161 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 19:33:06,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2024-11-10 19:33:06,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 309. [2024-11-10 19:33:06,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 229 states have (on average 1.3842794759825328) internal successors, (317), 299 states have internal predecessors, (317), 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 19:33:06,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 331 transitions. [2024-11-10 19:33:06,520 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 331 transitions. Word has length 63 [2024-11-10 19:33:06,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:33:06,520 INFO L471 AbstractCegarLoop]: Abstraction has 309 states and 331 transitions. [2024-11-10 19:33:06,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-10 19:33:06,521 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 331 transitions. [2024-11-10 19:33:06,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-10 19:33:06,522 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:33:06,522 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:33:06,543 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-10 19:33:06,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:33:06,724 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-10 19:33:06,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:33:06,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1794205289, now seen corresponding path program 1 times [2024-11-10 19:33:06,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:33:06,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153691445] [2024-11-10 19:33:06,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:33:06,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:33:06,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:33:06,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:33:06,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:33:06,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 19:33:06,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:33:06,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-10 19:33:06,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:33:06,785 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 19:33:06,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:33:06,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153691445] [2024-11-10 19:33:06,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153691445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:33:06,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:33:06,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 19:33:06,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146181806] [2024-11-10 19:33:06,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:33:06,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 19:33:06,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:33:06,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 19:33:06,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 19:33:06,787 INFO L87 Difference]: Start difference. First operand 309 states and 331 transitions. Second operand has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-10 19:33:06,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:33:06,861 INFO L93 Difference]: Finished difference Result 310 states and 331 transitions. [2024-11-10 19:33:06,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 19:33:06,862 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 69 [2024-11-10 19:33:06,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:33:06,863 INFO L225 Difference]: With dead ends: 310 [2024-11-10 19:33:06,863 INFO L226 Difference]: Without dead ends: 309 [2024-11-10 19:33:06,863 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 19:33:06,864 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 44 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 19:33:06,864 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 285 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 19:33:06,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2024-11-10 19:33:06,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 309. [2024-11-10 19:33:06,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 229 states have (on average 1.3799126637554586) internal successors, (316), 299 states have internal predecessors, (316), 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 19:33:06,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 330 transitions. [2024-11-10 19:33:06,870 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 330 transitions. Word has length 69 [2024-11-10 19:33:06,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:33:06,870 INFO L471 AbstractCegarLoop]: Abstraction has 309 states and 330 transitions. [2024-11-10 19:33:06,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-10 19:33:06,870 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 330 transitions. [2024-11-10 19:33:06,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-10 19:33:06,871 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:33:06,871 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 19:33:06,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 19:33:06,872 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-10 19:33:06,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:33:06,872 INFO L85 PathProgramCache]: Analyzing trace with hash -601592562, now seen corresponding path program 1 times [2024-11-10 19:33:06,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:33:06,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774402458] [2024-11-10 19:33:06,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:33:06,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:33:06,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:33:06,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1596903370] [2024-11-10 19:33:06,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:33:06,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:33:06,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:33:06,891 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 19:33:06,894 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 19:33:06,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:33:06,934 INFO L255 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-10 19:33:06,935 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:33:07,076 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-10 19:33:07,076 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 19:33:07,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:33:07,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774402458] [2024-11-10 19:33:07,077 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:33:07,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1596903370] [2024-11-10 19:33:07,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1596903370] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:33:07,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:33:07,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 19:33:07,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135890272] [2024-11-10 19:33:07,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:33:07,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 19:33:07,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:33:07,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 19:33:07,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 19:33:07,078 INFO L87 Difference]: Start difference. First operand 309 states and 330 transitions. Second operand has 3 states, 2 states have (on average 31.0) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-10 19:33:07,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:33:07,113 INFO L93 Difference]: Finished difference Result 309 states and 330 transitions. [2024-11-10 19:33:07,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 19:33:07,114 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 31.0) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 101 [2024-11-10 19:33:07,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:33:07,115 INFO L225 Difference]: With dead ends: 309 [2024-11-10 19:33:07,115 INFO L226 Difference]: Without dead ends: 306 [2024-11-10 19:33:07,115 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 98 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 19:33:07,115 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 95 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 19:33:07,115 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 162 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 19:33:07,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2024-11-10 19:33:07,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 306. [2024-11-10 19:33:07,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 229 states have (on average 1.3580786026200873) internal successors, (311), 296 states have internal predecessors, (311), 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 19:33:07,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 325 transitions. [2024-11-10 19:33:07,121 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 325 transitions. Word has length 101 [2024-11-10 19:33:07,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:33:07,122 INFO L471 AbstractCegarLoop]: Abstraction has 306 states and 325 transitions. [2024-11-10 19:33:07,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 31.0) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-10 19:33:07,122 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 325 transitions. [2024-11-10 19:33:07,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-10 19:33:07,123 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:33:07,123 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 19:33:07,135 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-10 19:33:07,323 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,SelfDestructingSolverStorable8 [2024-11-10 19:33:07,325 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-10 19:33:07,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:33:07,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1469500149, now seen corresponding path program 1 times [2024-11-10 19:33:07,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:33:07,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893286791] [2024-11-10 19:33:07,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:33:07,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:33:07,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:33:07,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1230313978] [2024-11-10 19:33:07,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:33:07,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:33:07,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:33:07,340 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 19:33:07,343 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 19:33:07,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:33:07,387 INFO L255 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-10 19:33:07,389 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:33:07,655 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 19:33:07,655 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:33:07,931 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 19:33:07,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:33:07,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893286791] [2024-11-10 19:33:07,932 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:33:07,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1230313978] [2024-11-10 19:33:07,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1230313978] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 19:33:07,932 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-10 19:33:07,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-11-10 19:33:07,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179917226] [2024-11-10 19:33:07,932 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-10 19:33:07,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 19:33:07,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:33:07,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 19:33:07,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-10 19:33:07,933 INFO L87 Difference]: Start difference. First operand 306 states and 325 transitions. Second operand has 8 states, 7 states have (on average 25.428571428571427) internal successors, (178), 8 states have internal predecessors, (178), 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 19:33:08,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:33:08,512 INFO L93 Difference]: Finished difference Result 381 states and 396 transitions. [2024-11-10 19:33:08,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 19:33:08,513 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 25.428571428571427) internal successors, (178), 8 states have internal predecessors, (178), 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 102 [2024-11-10 19:33:08,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:33:08,514 INFO L225 Difference]: With dead ends: 381 [2024-11-10 19:33:08,514 INFO L226 Difference]: Without dead ends: 374 [2024-11-10 19:33:08,514 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-11-10 19:33:08,515 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 293 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 19:33:08,515 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 308 Invalid, 716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 701 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 19:33:08,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2024-11-10 19:33:08,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 347. [2024-11-10 19:33:08,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 271 states have (on average 1.3763837638376384) internal successors, (373), 337 states have internal predecessors, (373), 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 19:33:08,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 387 transitions. [2024-11-10 19:33:08,527 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 387 transitions. Word has length 102 [2024-11-10 19:33:08,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:33:08,527 INFO L471 AbstractCegarLoop]: Abstraction has 347 states and 387 transitions. [2024-11-10 19:33:08,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 25.428571428571427) internal successors, (178), 8 states have internal predecessors, (178), 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 19:33:08,528 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 387 transitions. [2024-11-10 19:33:08,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-10 19:33:08,529 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:33:08,529 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 19:33:08,545 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 19:33:08,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:33:08,734 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-10 19:33:08,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:33:08,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1690135724, now seen corresponding path program 1 times [2024-11-10 19:33:08,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:33:08,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374771636] [2024-11-10 19:33:08,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:33:08,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:33:08,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:33:08,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [330132379] [2024-11-10 19:33:08,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:33:08,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:33:08,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:33:08,770 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 19:33:08,771 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 19:33:08,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:33:08,811 INFO L255 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-10 19:33:08,813 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:33:09,050 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 19:33:09,051 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:33:13,731 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 19:33:13,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:33:13,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374771636] [2024-11-10 19:33:13,731 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:33:13,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [330132379] [2024-11-10 19:33:13,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [330132379] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-10 19:33:13,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 19:33:13,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 8 [2024-11-10 19:33:13,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095300687] [2024-11-10 19:33:13,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:33:13,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 19:33:13,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:33:13,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 19:33:13,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=40, Unknown=0, NotChecked=0, Total=72 [2024-11-10 19:33:13,733 INFO L87 Difference]: Start difference. First operand 347 states and 387 transitions. Second operand has 6 states, 5 states have (on average 18.8) internal successors, (94), 6 states have internal predecessors, (94), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-10 19:33:18,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-10 19:33:22,305 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-10 19:33:24,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-10 19:33:26,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-10 19:33:29,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-10 19:33:31,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-10 19:33:33,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-10 19:33:37,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-10 19:33:42,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-10 19:33:44,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-10 19:33:48,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-10 19:33:52,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-10 19:33:52,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:33:52,802 INFO L93 Difference]: Finished difference Result 347 states and 387 transitions. [2024-11-10 19:33:52,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 19:33:52,802 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.8) internal successors, (94), 6 states have internal predecessors, (94), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 103 [2024-11-10 19:33:52,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:33:52,803 INFO L225 Difference]: With dead ends: 347 [2024-11-10 19:33:52,803 INFO L226 Difference]: Without dead ends: 345 [2024-11-10 19:33:52,804 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=41, Invalid=49, Unknown=0, NotChecked=0, Total=90 [2024-11-10 19:33:52,804 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 196 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 9 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.0s IncrementalHoareTripleChecker+Time [2024-11-10 19:33:52,804 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 50 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 302 Invalid, 6 Unknown, 0 Unchecked, 39.0s Time] [2024-11-10 19:33:52,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2024-11-10 19:33:52,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 345. [2024-11-10 19:33:52,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 271 states have (on average 1.3616236162361623) internal successors, (369), 335 states have internal predecessors, (369), 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 19:33:52,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 383 transitions. [2024-11-10 19:33:52,811 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 383 transitions. Word has length 103 [2024-11-10 19:33:52,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:33:52,812 INFO L471 AbstractCegarLoop]: Abstraction has 345 states and 383 transitions. [2024-11-10 19:33:52,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.8) internal successors, (94), 6 states have internal predecessors, (94), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-10 19:33:52,812 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 383 transitions. [2024-11-10 19:33:52,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-10 19:33:52,812 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:33:52,813 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 19:33:52,825 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 19:33:53,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:33:53,016 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-10 19:33:53,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:33:53,017 INFO L85 PathProgramCache]: Analyzing trace with hash 854599977, now seen corresponding path program 1 times [2024-11-10 19:33:53,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:33:53,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450017317] [2024-11-10 19:33:53,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:33:53,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:33:53,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:33:53,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1979404966] [2024-11-10 19:33:53,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:33:53,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:33:53,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:33:53,054 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 19:33:53,055 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 19:33:53,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:33:53,093 INFO L255 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 19:33:53,095 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:33:53,214 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 19:33:53,214 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 19:33:53,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:33:53,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450017317] [2024-11-10 19:33:53,215 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:33:53,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1979404966] [2024-11-10 19:33:53,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1979404966] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:33:53,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:33:53,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 19:33:53,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785876661] [2024-11-10 19:33:53,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:33:53,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 19:33:53,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:33:53,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 19:33:53,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-10 19:33:53,218 INFO L87 Difference]: Start difference. First operand 345 states and 383 transitions. Second operand has 5 states, 4 states have (on average 23.75) internal successors, (95), 5 states have internal predecessors, (95), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-10 19:33:53,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:33:53,648 INFO L93 Difference]: Finished difference Result 345 states and 383 transitions. [2024-11-10 19:33:53,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 19:33:53,649 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 23.75) internal successors, (95), 5 states have internal predecessors, (95), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 104 [2024-11-10 19:33:53,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:33:53,650 INFO L225 Difference]: With dead ends: 345 [2024-11-10 19:33:53,650 INFO L226 Difference]: Without dead ends: 325 [2024-11-10 19:33:53,650 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 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 19:33:53,651 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 117 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-10 19:33:53,651 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 77 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-10 19:33:53,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2024-11-10 19:33:53,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 325. [2024-11-10 19:33:53,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 271 states have (on average 1.2509225092250922) internal successors, (339), 315 states have internal predecessors, (339), 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 19:33:53,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 353 transitions. [2024-11-10 19:33:53,658 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 353 transitions. Word has length 104 [2024-11-10 19:33:53,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:33:53,658 INFO L471 AbstractCegarLoop]: Abstraction has 325 states and 353 transitions. [2024-11-10 19:33:53,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 23.75) internal successors, (95), 5 states have internal predecessors, (95), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-10 19:33:53,658 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 353 transitions. [2024-11-10 19:33:53,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-10 19:33:53,659 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:33:53,659 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 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 19:33:53,672 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-10 19:33:53,859 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,SelfDestructingSolverStorable11 [2024-11-10 19:33:53,860 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-10 19:33:53,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:33:53,860 INFO L85 PathProgramCache]: Analyzing trace with hash 722795594, now seen corresponding path program 1 times [2024-11-10 19:33:53,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:33:53,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876252643] [2024-11-10 19:33:53,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:33:53,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:33:53,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:33:53,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [456962263] [2024-11-10 19:33:53,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:33:53,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:33:53,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:33:53,888 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 19:33:53,889 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 19:33:53,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:33:53,927 INFO L255 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-10 19:33:53,929 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:33:54,177 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 19:33:54,177 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:33:54,406 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-10 19:33:54,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:33:54,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876252643] [2024-11-10 19:33:54,407 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:33:54,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [456962263] [2024-11-10 19:33:54,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [456962263] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-10 19:33:54,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 19:33:54,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-10 19:33:54,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787357494] [2024-11-10 19:33:54,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:33:54,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 19:33:54,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:33:54,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 19:33:54,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-10 19:33:54,409 INFO L87 Difference]: Start difference. First operand 325 states and 353 transitions. Second operand has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-10 19:33:55,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:33:55,809 INFO L93 Difference]: Finished difference Result 325 states and 353 transitions. [2024-11-10 19:33:55,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 19:33:55,809 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 105 [2024-11-10 19:33:55,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:33:55,810 INFO L225 Difference]: With dead ends: 325 [2024-11-10 19:33:55,810 INFO L226 Difference]: Without dead ends: 323 [2024-11-10 19:33:55,811 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 202 SyntacticMatches, 1 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 19:33:55,811 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 82 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-10 19:33:55,811 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 48 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-10 19:33:55,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2024-11-10 19:33:55,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 323. [2024-11-10 19:33:55,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 271 states have (on average 1.2361623616236161) internal successors, (335), 313 states have internal predecessors, (335), 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 19:33:55,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 349 transitions. [2024-11-10 19:33:55,819 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 349 transitions. Word has length 105 [2024-11-10 19:33:55,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:33:55,819 INFO L471 AbstractCegarLoop]: Abstraction has 323 states and 349 transitions. [2024-11-10 19:33:55,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-10 19:33:55,819 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 349 transitions. [2024-11-10 19:33:55,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-10 19:33:55,820 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:33:55,820 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-10 19:33:55,833 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 19:33:56,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:33:56,025 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-10 19:33:56,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:33:56,025 INFO L85 PathProgramCache]: Analyzing trace with hash -731786616, now seen corresponding path program 1 times [2024-11-10 19:33:56,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:33:56,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646893996] [2024-11-10 19:33:56,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:33:56,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:33:56,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:33:56,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:33:56,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:33:56,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 19:33:56,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:33:56,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-10 19:33:56,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:33:56,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-10 19:33:56,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:33:56,095 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-10 19:33:56,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:33:56,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646893996] [2024-11-10 19:33:56,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646893996] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:33:56,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2004399689] [2024-11-10 19:33:56,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:33:56,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:33:56,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:33:56,099 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 19:33:56,108 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 19:33:56,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:33:56,145 INFO L255 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-10 19:33:56,147 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:33:56,240 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-10 19:33:56,241 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 19:33:56,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2004399689] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:33:56,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 19:33:56,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-11-10 19:33:56,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626074988] [2024-11-10 19:33:56,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:33:56,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 19:33:56,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:33:56,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 19:33:56,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-10 19:33:56,242 INFO L87 Difference]: Start difference. First operand 323 states and 349 transitions. Second operand has 4 states, 3 states have (on average 33.0) internal successors, (99), 4 states have internal predecessors, (99), 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 19:33:56,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:33:56,263 INFO L93 Difference]: Finished difference Result 323 states and 349 transitions. [2024-11-10 19:33:56,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 19:33:56,263 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 33.0) internal successors, (99), 4 states have internal predecessors, (99), 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 113 [2024-11-10 19:33:56,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:33:56,265 INFO L225 Difference]: With dead ends: 323 [2024-11-10 19:33:56,265 INFO L226 Difference]: Without dead ends: 322 [2024-11-10 19:33:56,265 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 120 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 19:33:56,266 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 50 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 19:33:56,266 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 286 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 19:33:56,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2024-11-10 19:33:56,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 322. [2024-11-10 19:33:56,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 271 states have (on average 1.2287822878228782) internal successors, (333), 312 states have internal predecessors, (333), 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 19:33:56,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 347 transitions. [2024-11-10 19:33:56,274 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 347 transitions. Word has length 113 [2024-11-10 19:33:56,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:33:56,274 INFO L471 AbstractCegarLoop]: Abstraction has 322 states and 347 transitions. [2024-11-10 19:33:56,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 33.0) internal successors, (99), 4 states have internal predecessors, (99), 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 19:33:56,275 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 347 transitions. [2024-11-10 19:33:56,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-10 19:33:56,275 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:33:56,275 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-10 19:33:56,291 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 19:33:56,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:33:56,476 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-10 19:33:56,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:33:56,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1210548542, now seen corresponding path program 1 times [2024-11-10 19:33:56,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:33:56,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210122070] [2024-11-10 19:33:56,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:33:56,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:33:56,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:33:56,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:33:56,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:33:56,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 19:33:56,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:33:56,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-10 19:33:56,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:33:56,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-10 19:33:56,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:33:56,598 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-10 19:33:56,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:33:56,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210122070] [2024-11-10 19:33:56,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210122070] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:33:56,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [751474809] [2024-11-10 19:33:56,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:33:56,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:33:56,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:33:56,603 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 19:33:56,618 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 19:33:56,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:33:56,659 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-10 19:33:56,660 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:33:56,739 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-10 19:33:56,739 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:33:56,856 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-10 19:33:56,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [751474809] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 19:33:56,856 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 19:33:56,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-10 19:33:56,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132206093] [2024-11-10 19:33:56,856 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 19:33:56,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 19:33:56,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:33:56,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 19:33:56,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-10 19:33:56,857 INFO L87 Difference]: Start difference. First operand 322 states and 347 transitions. Second operand has 7 states, 6 states have (on average 38.833333333333336) internal successors, (233), 7 states have internal predecessors, (233), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-10 19:33:56,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:33:56,905 INFO L93 Difference]: Finished difference Result 425 states and 438 transitions. [2024-11-10 19:33:56,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 19:33:56,906 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 38.833333333333336) internal successors, (233), 7 states have internal predecessors, (233), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 114 [2024-11-10 19:33:56,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:33:56,907 INFO L225 Difference]: With dead ends: 425 [2024-11-10 19:33:56,907 INFO L226 Difference]: Without dead ends: 424 [2024-11-10 19:33:56,907 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-10 19:33:56,907 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 55 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 19:33:56,908 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 603 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 19:33:56,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2024-11-10 19:33:56,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 383. [2024-11-10 19:33:56,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 330 states have (on average 1.2636363636363637) internal successors, (417), 371 states have internal predecessors, (417), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-10 19:33:56,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 435 transitions. [2024-11-10 19:33:56,928 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 435 transitions. Word has length 114 [2024-11-10 19:33:56,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:33:56,928 INFO L471 AbstractCegarLoop]: Abstraction has 383 states and 435 transitions. [2024-11-10 19:33:56,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 38.833333333333336) internal successors, (233), 7 states have internal predecessors, (233), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-10 19:33:56,928 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 435 transitions. [2024-11-10 19:33:56,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-10 19:33:56,929 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:33:56,929 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:33:56,942 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-10 19:33:57,134 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,SelfDestructingSolverStorable14 [2024-11-10 19:33:57,134 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr83ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-10 19:33:57,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:33:57,135 INFO L85 PathProgramCache]: Analyzing trace with hash -685222152, now seen corresponding path program 1 times [2024-11-10 19:33:57,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:33:57,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356282911] [2024-11-10 19:33:57,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:33:57,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:33:57,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:33:57,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:33:57,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:33:57,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 19:33:57,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:33:57,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-10 19:33:57,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:33:57,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-10 19:33:57,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:33:57,211 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-10 19:33:57,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:33:57,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356282911] [2024-11-10 19:33:57,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356282911] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:33:57,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:33:57,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 19:33:57,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19974774] [2024-11-10 19:33:57,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:33:57,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 19:33:57,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:33:57,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 19:33:57,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 19:33:57,213 INFO L87 Difference]: Start difference. First operand 383 states and 435 transitions. Second operand has 4 states, 3 states have (on average 34.666666666666664) internal successors, (104), 4 states have internal predecessors, (104), 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 19:33:57,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:33:57,323 INFO L93 Difference]: Finished difference Result 383 states and 435 transitions. [2024-11-10 19:33:57,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 19:33:57,323 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 34.666666666666664) internal successors, (104), 4 states have internal predecessors, (104), 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 130 [2024-11-10 19:33:57,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:33:57,324 INFO L225 Difference]: With dead ends: 383 [2024-11-10 19:33:57,324 INFO L226 Difference]: Without dead ends: 376 [2024-11-10 19:33:57,325 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 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 19:33:57,325 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 130 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 19:33:57,325 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 43 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 19:33:57,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2024-11-10 19:33:57,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 376. [2024-11-10 19:33:57,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 330 states have (on average 1.2212121212121212) internal successors, (403), 364 states have internal predecessors, (403), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-10 19:33:57,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 421 transitions. [2024-11-10 19:33:57,336 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 421 transitions. Word has length 130 [2024-11-10 19:33:57,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:33:57,336 INFO L471 AbstractCegarLoop]: Abstraction has 376 states and 421 transitions. [2024-11-10 19:33:57,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 34.666666666666664) internal successors, (104), 4 states have internal predecessors, (104), 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 19:33:57,336 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 421 transitions. [2024-11-10 19:33:57,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-10 19:33:57,337 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:33:57,337 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:33:57,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-10 19:33:57,337 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr82ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-10 19:33:57,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:33:57,338 INFO L85 PathProgramCache]: Analyzing trace with hash 232949913, now seen corresponding path program 1 times [2024-11-10 19:33:57,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:33:57,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646089872] [2024-11-10 19:33:57,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:33:57,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:33:57,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:33:57,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:33:57,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:33:57,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 19:33:57,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:33:57,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-10 19:33:57,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:33:57,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-10 19:33:57,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:33:57,396 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-10 19:33:57,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:33:57,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646089872] [2024-11-10 19:33:57,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646089872] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:33:57,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:33:57,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 19:33:57,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390468243] [2024-11-10 19:33:57,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:33:57,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 19:33:57,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:33:57,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 19:33:57,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 19:33:57,398 INFO L87 Difference]: Start difference. First operand 376 states and 421 transitions. Second operand has 4 states, 3 states have (on average 34.666666666666664) internal successors, (104), 4 states have internal predecessors, (104), 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 19:33:57,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:33:57,536 INFO L93 Difference]: Finished difference Result 376 states and 421 transitions. [2024-11-10 19:33:57,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 19:33:57,536 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 34.666666666666664) internal successors, (104), 4 states have internal predecessors, (104), 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 131 [2024-11-10 19:33:57,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:33:57,537 INFO L225 Difference]: With dead ends: 376 [2024-11-10 19:33:57,537 INFO L226 Difference]: Without dead ends: 375 [2024-11-10 19:33:57,538 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 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 19:33:57,538 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 110 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 19:33:57,538 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 43 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 19:33:57,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2024-11-10 19:33:57,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 375. [2024-11-10 19:33:57,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 330 states have (on average 1.2121212121212122) internal successors, (400), 363 states have internal predecessors, (400), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-10 19:33:57,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 418 transitions. [2024-11-10 19:33:57,549 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 418 transitions. Word has length 131 [2024-11-10 19:33:57,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:33:57,550 INFO L471 AbstractCegarLoop]: Abstraction has 375 states and 418 transitions. [2024-11-10 19:33:57,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 34.666666666666664) internal successors, (104), 4 states have internal predecessors, (104), 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 19:33:57,550 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 418 transitions. [2024-11-10 19:33:57,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-10 19:33:57,551 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:33:57,551 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:33:57,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-10 19:33:57,551 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr80ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-10 19:33:57,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:33:57,551 INFO L85 PathProgramCache]: Analyzing trace with hash 526571575, now seen corresponding path program 1 times [2024-11-10 19:33:57,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:33:57,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659212652] [2024-11-10 19:33:57,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:33:57,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:33:57,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:33:57,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1617158013] [2024-11-10 19:33:57,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:33:57,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:33:57,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:33:57,566 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 19:33:57,567 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 19:33:57,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:33:57,610 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-10 19:33:57,611 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:33:57,704 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-10 19:33:57,704 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:33:57,885 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-10 19:33:57,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:33:57,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659212652] [2024-11-10 19:33:57,886 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:33:57,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1617158013] [2024-11-10 19:33:57,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1617158013] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 19:33:57,886 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-10 19:33:57,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-11-10 19:33:57,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040014399] [2024-11-10 19:33:57,886 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-10 19:33:57,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 19:33:57,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:33:57,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 19:33:57,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-10 19:33:57,887 INFO L87 Difference]: Start difference. First operand 375 states and 418 transitions. Second operand has 8 states, 7 states have (on average 32.857142857142854) internal successors, (230), 8 states have internal predecessors, (230), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-10 19:33:58,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:33:58,306 INFO L93 Difference]: Finished difference Result 436 states and 471 transitions. [2024-11-10 19:33:58,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 19:33:58,307 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 32.857142857142854) internal successors, (230), 8 states have internal predecessors, (230), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 133 [2024-11-10 19:33:58,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:33:58,308 INFO L225 Difference]: With dead ends: 436 [2024-11-10 19:33:58,308 INFO L226 Difference]: Without dead ends: 406 [2024-11-10 19:33:58,308 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2024-11-10 19:33:58,309 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 313 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 777 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-10 19:33:58,309 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 201 Invalid, 812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 777 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-10 19:33:58,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2024-11-10 19:33:58,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 359. [2024-11-10 19:33:58,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 319 states have (on average 1.1567398119122256) internal successors, (369), 348 states have internal predecessors, (369), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-10 19:33:58,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 385 transitions. [2024-11-10 19:33:58,318 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 385 transitions. Word has length 133 [2024-11-10 19:33:58,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:33:58,319 INFO L471 AbstractCegarLoop]: Abstraction has 359 states and 385 transitions. [2024-11-10 19:33:58,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 32.857142857142854) internal successors, (230), 8 states have internal predecessors, (230), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-10 19:33:58,319 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 385 transitions. [2024-11-10 19:33:58,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-10 19:33:58,319 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:33:58,319 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:33:58,334 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-10 19:33:58,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-10 19:33:58,520 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-10 19:33:58,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:33:58,520 INFO L85 PathProgramCache]: Analyzing trace with hash 725332255, now seen corresponding path program 1 times [2024-11-10 19:33:58,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:33:58,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663784857] [2024-11-10 19:33:58,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:33:58,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:33:58,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:33:58,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1981628286] [2024-11-10 19:33:58,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:33:58,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:33:58,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:33:58,543 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:33:58,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-10 19:33:58,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:33:58,589 INFO L255 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 19:33:58,590 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:33:58,840 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-10 19:33:58,841 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:33:59,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:33:59,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663784857] [2024-11-10 19:33:59,100 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:33:59,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1981628286] [2024-11-10 19:33:59,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1981628286] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:33:59,100 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-10 19:33:59,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-10 19:33:59,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546937675] [2024-11-10 19:33:59,101 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-10 19:33:59,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 19:33:59,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:33:59,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 19:33:59,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-10 19:33:59,102 INFO L87 Difference]: Start difference. First operand 359 states and 385 transitions. Second operand has 5 states, 4 states have (on average 33.25) internal successors, (133), 5 states have internal predecessors, (133), 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 19:33:59,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:33:59,288 INFO L93 Difference]: Finished difference Result 359 states and 385 transitions. [2024-11-10 19:33:59,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 19:33:59,288 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 33.25) internal successors, (133), 5 states have internal predecessors, (133), 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 152 [2024-11-10 19:33:59,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:33:59,289 INFO L225 Difference]: With dead ends: 359 [2024-11-10 19:33:59,289 INFO L226 Difference]: Without dead ends: 345 [2024-11-10 19:33:59,289 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2024-11-10 19:33:59,290 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 24 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 19:33:59,290 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 82 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 19:33:59,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2024-11-10 19:33:59,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 342. [2024-11-10 19:33:59,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 316 states have (on average 1.0917721518987342) internal successors, (345), 331 states have internal predecessors, (345), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-10 19:33:59,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 361 transitions. [2024-11-10 19:33:59,299 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 361 transitions. Word has length 152 [2024-11-10 19:33:59,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:33:59,299 INFO L471 AbstractCegarLoop]: Abstraction has 342 states and 361 transitions. [2024-11-10 19:33:59,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 33.25) internal successors, (133), 5 states have internal predecessors, (133), 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 19:33:59,300 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 361 transitions. [2024-11-10 19:33:59,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-10 19:33:59,300 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:33:59,301 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:33:59,313 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-10 19:33:59,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:33:59,501 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-10 19:33:59,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:33:59,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1010463403, now seen corresponding path program 1 times [2024-11-10 19:33:59,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:33:59,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306635067] [2024-11-10 19:33:59,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:33:59,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:33:59,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:33:59,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1001595319] [2024-11-10 19:33:59,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:33:59,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:33:59,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:33:59,522 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:33:59,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-10 19:33:59,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:33:59,577 INFO L255 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-10 19:33:59,579 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:33:59,887 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-10 19:33:59,887 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:34:00,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:34:00,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306635067] [2024-11-10 19:34:00,443 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:34:00,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1001595319] [2024-11-10 19:34:00,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1001595319] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:34:00,444 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-10 19:34:00,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-10 19:34:00,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585582328] [2024-11-10 19:34:00,444 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-10 19:34:00,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 19:34:00,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:34:00,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 19:34:00,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-10 19:34:00,446 INFO L87 Difference]: Start difference. First operand 342 states and 361 transitions. Second operand has 6 states, 5 states have (on average 26.8) internal successors, (134), 6 states have internal predecessors, (134), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-10 19:34:00,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:34:00,689 INFO L93 Difference]: Finished difference Result 380 states and 399 transitions. [2024-11-10 19:34:00,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 19:34:00,690 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 26.8) internal successors, (134), 6 states have internal predecessors, (134), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 153 [2024-11-10 19:34:00,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:34:00,691 INFO L225 Difference]: With dead ends: 380 [2024-11-10 19:34:00,691 INFO L226 Difference]: Without dead ends: 342 [2024-11-10 19:34:00,691 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-10 19:34:00,692 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 3 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 19:34:00,692 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 114 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 19:34:00,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2024-11-10 19:34:00,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2024-11-10 19:34:00,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 316 states have (on average 1.0886075949367089) internal successors, (344), 331 states have internal predecessors, (344), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-10 19:34:00,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 360 transitions. [2024-11-10 19:34:00,701 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 360 transitions. Word has length 153 [2024-11-10 19:34:00,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:34:00,701 INFO L471 AbstractCegarLoop]: Abstraction has 342 states and 360 transitions. [2024-11-10 19:34:00,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 26.8) internal successors, (134), 6 states have internal predecessors, (134), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-10 19:34:00,701 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 360 transitions. [2024-11-10 19:34:00,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-10 19:34:00,702 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:34:00,702 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:34:00,715 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-10 19:34:00,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:34:00,907 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-10 19:34:00,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:34:00,907 INFO L85 PathProgramCache]: Analyzing trace with hash 238436909, now seen corresponding path program 1 times [2024-11-10 19:34:00,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:34:00,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301454351] [2024-11-10 19:34:00,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:34:00,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:34:00,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:34:00,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2020835411] [2024-11-10 19:34:00,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:34:00,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:34:00,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:34:00,962 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:34:00,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-10 19:34:01,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:34:01,024 INFO L255 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 19:34:01,025 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:34:01,166 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 149 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-10 19:34:01,166 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:34:01,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:34:01,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301454351] [2024-11-10 19:34:01,225 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:34:01,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2020835411] [2024-11-10 19:34:01,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2020835411] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:34:01,226 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-10 19:34:01,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-10 19:34:01,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739725625] [2024-11-10 19:34:01,226 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-10 19:34:01,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 19:34:01,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:34:01,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 19:34:01,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2024-11-10 19:34:01,227 INFO L87 Difference]: Start difference. First operand 342 states and 360 transitions. Second operand has 6 states, 5 states have (on average 32.0) internal successors, (160), 6 states have internal predecessors, (160), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-10 19:34:01,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:34:01,488 INFO L93 Difference]: Finished difference Result 400 states and 420 transitions. [2024-11-10 19:34:01,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 19:34:01,489 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 32.0) internal successors, (160), 6 states have internal predecessors, (160), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 179 [2024-11-10 19:34:01,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:34:01,490 INFO L225 Difference]: With dead ends: 400 [2024-11-10 19:34:01,490 INFO L226 Difference]: Without dead ends: 397 [2024-11-10 19:34:01,491 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2024-11-10 19:34:01,491 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 157 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 19:34:01,491 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 107 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 19:34:01,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2024-11-10 19:34:01,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 342. [2024-11-10 19:34:01,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 316 states have (on average 1.0791139240506329) internal successors, (341), 331 states have internal predecessors, (341), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-10 19:34:01,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 357 transitions. [2024-11-10 19:34:01,500 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 357 transitions. Word has length 179 [2024-11-10 19:34:01,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:34:01,500 INFO L471 AbstractCegarLoop]: Abstraction has 342 states and 357 transitions. [2024-11-10 19:34:01,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 32.0) internal successors, (160), 6 states have internal predecessors, (160), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-10 19:34:01,501 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 357 transitions. [2024-11-10 19:34:01,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-10 19:34:01,501 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:34:01,501 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:34:01,517 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-10 19:34:01,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-10 19:34:01,702 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-10 19:34:01,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:34:01,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1504604715, now seen corresponding path program 1 times [2024-11-10 19:34:01,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:34:01,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99132356] [2024-11-10 19:34:01,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:34:01,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:34:01,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:34:01,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [67452261] [2024-11-10 19:34:01,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:34:01,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:34:01,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:34:01,721 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:34:01,722 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-10 19:34:01,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:34:01,778 INFO L255 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-10 19:34:01,779 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:34:01,915 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-10 19:34:01,916 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:34:02,239 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-10 19:34:02,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:34:02,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99132356] [2024-11-10 19:34:02,239 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:34:02,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [67452261] [2024-11-10 19:34:02,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [67452261] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 19:34:02,240 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-10 19:34:02,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-11-10 19:34:02,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111552530] [2024-11-10 19:34:02,240 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-10 19:34:02,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 19:34:02,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:34:02,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 19:34:02,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-10 19:34:02,241 INFO L87 Difference]: Start difference. First operand 342 states and 357 transitions. Second operand has 10 states, 9 states have (on average 35.111111111111114) internal successors, (316), 10 states have internal predecessors, (316), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-10 19:34:02,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:34:02,721 INFO L93 Difference]: Finished difference Result 420 states and 441 transitions. [2024-11-10 19:34:02,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 19:34:02,722 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 35.111111111111114) internal successors, (316), 10 states have internal predecessors, (316), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 181 [2024-11-10 19:34:02,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:34:02,723 INFO L225 Difference]: With dead ends: 420 [2024-11-10 19:34:02,723 INFO L226 Difference]: Without dead ends: 409 [2024-11-10 19:34:02,723 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2024-11-10 19:34:02,724 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 490 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 1024 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 493 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 1051 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1024 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-10 19:34:02,724 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [493 Valid, 274 Invalid, 1051 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1024 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-10 19:34:02,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2024-11-10 19:34:02,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 329. [2024-11-10 19:34:02,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 310 states have (on average 1.0419354838709678) internal successors, (323), 318 states have internal predecessors, (323), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-10 19:34:02,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 339 transitions. [2024-11-10 19:34:02,733 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 339 transitions. Word has length 181 [2024-11-10 19:34:02,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:34:02,734 INFO L471 AbstractCegarLoop]: Abstraction has 329 states and 339 transitions. [2024-11-10 19:34:02,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 35.111111111111114) internal successors, (316), 10 states have internal predecessors, (316), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-10 19:34:02,734 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 339 transitions. [2024-11-10 19:34:02,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-10 19:34:02,735 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:34:02,735 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:34:02,754 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-10 19:34:02,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-10 19:34:02,935 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-10 19:34:02,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:34:02,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1478845911, now seen corresponding path program 1 times [2024-11-10 19:34:02,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:34:02,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550016882] [2024-11-10 19:34:02,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:34:02,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:34:02,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:34:02,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [514254733] [2024-11-10 19:34:02,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:34:02,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:34:02,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:34:02,964 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:34:02,967 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-10 19:34:03,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:34:03,026 INFO L255 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-10 19:34:03,027 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:34:03,374 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 0 proven. 157 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-10 19:34:03,374 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:34:03,682 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 0 proven. 157 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-10 19:34:03,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:34:03,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550016882] [2024-11-10 19:34:03,682 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:34:03,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [514254733] [2024-11-10 19:34:03,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [514254733] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 19:34:03,682 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-10 19:34:03,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2024-11-10 19:34:03,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639096958] [2024-11-10 19:34:03,682 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-10 19:34:03,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-10 19:34:03,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:34:03,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-10 19:34:03,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2024-11-10 19:34:03,684 INFO L87 Difference]: Start difference. First operand 329 states and 339 transitions. Second operand has 14 states, 13 states have (on average 24.615384615384617) internal successors, (320), 14 states have internal predecessors, (320), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-10 19:34:04,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:34:04,583 INFO L93 Difference]: Finished difference Result 580 states and 612 transitions. [2024-11-10 19:34:04,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-10 19:34:04,584 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 24.615384615384617) internal successors, (320), 14 states have internal predecessors, (320), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 183 [2024-11-10 19:34:04,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:34:04,586 INFO L225 Difference]: With dead ends: 580 [2024-11-10 19:34:04,587 INFO L226 Difference]: Without dead ends: 579 [2024-11-10 19:34:04,587 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=127, Invalid=179, Unknown=0, NotChecked=0, Total=306 [2024-11-10 19:34:04,587 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 392 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 1636 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 393 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 1653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-10 19:34:04,587 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [393 Valid, 267 Invalid, 1653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1636 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-10 19:34:04,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2024-11-10 19:34:04,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 447. [2024-11-10 19:34:04,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 426 states have (on average 1.056338028169014) internal successors, (450), 434 states have internal predecessors, (450), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-10 19:34:04,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 470 transitions. [2024-11-10 19:34:04,601 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 470 transitions. Word has length 183 [2024-11-10 19:34:04,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:34:04,602 INFO L471 AbstractCegarLoop]: Abstraction has 447 states and 470 transitions. [2024-11-10 19:34:04,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 24.615384615384617) internal successors, (320), 14 states have internal predecessors, (320), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-10 19:34:04,602 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 470 transitions. [2024-11-10 19:34:04,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-10 19:34:04,603 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:34:04,603 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:34:04,621 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-10 19:34:04,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:34:04,803 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-10 19:34:04,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:34:04,804 INFO L85 PathProgramCache]: Analyzing trace with hash 876149561, now seen corresponding path program 2 times [2024-11-10 19:34:04,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:34:04,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346606904] [2024-11-10 19:34:04,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:34:04,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:34:04,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:34:04,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [920615546] [2024-11-10 19:34:04,827 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 19:34:04,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:34:04,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:34:04,828 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:34:04,830 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-10 19:34:04,863 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-10 19:34:04,863 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 19:34:04,864 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 19:34:04,865 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:34:05,344 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2024-11-10 19:34:05,344 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 19:34:05,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:34:05,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346606904] [2024-11-10 19:34:05,344 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:34:05,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [920615546] [2024-11-10 19:34:05,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [920615546] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:34:05,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:34:05,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 19:34:05,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059736787] [2024-11-10 19:34:05,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:34:05,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 19:34:05,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:34:05,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 19:34:05,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-10 19:34:05,346 INFO L87 Difference]: Start difference. First operand 447 states and 470 transitions. Second operand has 5 states, 4 states have (on average 29.25) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-10 19:34:05,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:34:05,456 INFO L93 Difference]: Finished difference Result 447 states and 470 transitions. [2024-11-10 19:34:05,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 19:34:05,456 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 29.25) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 210 [2024-11-10 19:34:05,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:34:05,457 INFO L225 Difference]: With dead ends: 447 [2024-11-10 19:34:05,458 INFO L226 Difference]: Without dead ends: 389 [2024-11-10 19:34:05,458 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 206 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 19:34:05,458 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 84 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 19:34:05,458 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 41 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 19:34:05,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2024-11-10 19:34:05,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 389. [2024-11-10 19:34:05,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 372 states have (on average 1.0456989247311828) internal successors, (389), 377 states have internal predecessors, (389), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-10 19:34:05,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 407 transitions. [2024-11-10 19:34:05,470 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 407 transitions. Word has length 210 [2024-11-10 19:34:05,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:34:05,471 INFO L471 AbstractCegarLoop]: Abstraction has 389 states and 407 transitions. [2024-11-10 19:34:05,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 29.25) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-10 19:34:05,471 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 407 transitions. [2024-11-10 19:34:05,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-10 19:34:05,472 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:34:05,472 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:34:05,484 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-10 19:34:05,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:34:05,673 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-10 19:34:05,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:34:05,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1736083125, now seen corresponding path program 2 times [2024-11-10 19:34:05,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:34:05,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595516088] [2024-11-10 19:34:05,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:34:05,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:34:05,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:34:05,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1426316429] [2024-11-10 19:34:05,705 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 19:34:05,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:34:05,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:34:05,706 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:34:05,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-10 19:34:05,762 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-10 19:34:05,762 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 19:34:05,763 INFO L255 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-10 19:34:05,765 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:34:06,161 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 3 proven. 258 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-10 19:34:06,161 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:34:07,526 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 3 proven. 258 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-10 19:34:07,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:34:07,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595516088] [2024-11-10 19:34:07,526 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:34:07,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1426316429] [2024-11-10 19:34:07,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1426316429] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 19:34:07,526 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-10 19:34:07,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 19 [2024-11-10 19:34:07,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57124492] [2024-11-10 19:34:07,526 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-10 19:34:07,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-10 19:34:07,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:34:07,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-10 19:34:07,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2024-11-10 19:34:07,528 INFO L87 Difference]: Start difference. First operand 389 states and 407 transitions. Second operand has 20 states, 19 states have (on average 20.57894736842105) internal successors, (391), 20 states have internal predecessors, (391), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-10 19:34:12,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-10 19:34:19,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.38s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-10 19:34:23,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-10 19:34:25,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-10 19:34:26,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-10 19:34:31,581 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.53s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-10 19:34:38,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.59s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-10 19:34:42,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []