./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound100.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8be7027f 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/hard-ll_valuebound100.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 e3523bc8254ad35e64aad06fd6e3c84672a9aa19521e18482795d6584edb45d0 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 17:30:09,185 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 17:30:09,232 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-12 17:30:09,236 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 17:30:09,237 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 17:30:09,261 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 17:30:09,264 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 17:30:09,264 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 17:30:09,264 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 17:30:09,265 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 17:30:09,265 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 17:30:09,265 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 17:30:09,266 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 17:30:09,268 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 17:30:09,268 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 17:30:09,268 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 17:30:09,268 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 17:30:09,268 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 17:30:09,269 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 17:30:09,269 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 17:30:09,269 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 17:30:09,272 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 17:30:09,273 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 17:30:09,273 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 17:30:09,273 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 17:30:09,273 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-12 17:30:09,273 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 17:30:09,273 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 17:30:09,274 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 17:30:09,274 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 17:30:09,274 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 17:30:09,274 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 17:30:09,274 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 17:30:09,274 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 17:30:09,274 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 17:30:09,274 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 17:30:09,275 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 17:30:09,275 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 17:30:09,275 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 17:30:09,275 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 17:30:09,275 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 17:30:09,276 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 17:30:09,276 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 17:30:09,276 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 17:30:09,276 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3523bc8254ad35e64aad06fd6e3c84672a9aa19521e18482795d6584edb45d0 [2024-11-12 17:30:09,458 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 17:30:09,478 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 17:30:09,480 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 17:30:09,481 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 17:30:09,481 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 17:30:09,482 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound100.c [2024-11-12 17:30:10,674 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 17:30:10,810 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 17:30:10,810 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound100.c [2024-11-12 17:30:10,816 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0e33bfd1/c07e0605d8d843fd96ed48b979af49b6/FLAG20159eb82 [2024-11-12 17:30:10,827 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0e33bfd1/c07e0605d8d843fd96ed48b979af49b6 [2024-11-12 17:30:10,828 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 17:30:10,829 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 17:30:10,830 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 17:30:10,830 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 17:30:10,834 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 17:30:10,835 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 05:30:10" (1/1) ... [2024-11-12 17:30:10,835 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74aaccb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:30:10, skipping insertion in model container [2024-11-12 17:30:10,835 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 05:30:10" (1/1) ... [2024-11-12 17:30:10,849 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 17:30:11,003 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 17:30:11,015 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 17:30:11,030 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 17:30:11,042 INFO L204 MainTranslator]: Completed translation [2024-11-12 17:30:11,042 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:30:11 WrapperNode [2024-11-12 17:30:11,042 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 17:30:11,043 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 17:30:11,043 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 17:30:11,043 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 17:30:11,048 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:30:11" (1/1) ... [2024-11-12 17:30:11,053 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:30:11" (1/1) ... [2024-11-12 17:30:11,079 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 86 [2024-11-12 17:30:11,080 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 17:30:11,080 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 17:30:11,080 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 17:30:11,080 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 17:30:11,090 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:30:11" (1/1) ... [2024-11-12 17:30:11,091 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:30:11" (1/1) ... [2024-11-12 17:30:11,094 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:30:11" (1/1) ... [2024-11-12 17:30:11,108 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]. [2024-11-12 17:30:11,108 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:30:11" (1/1) ... [2024-11-12 17:30:11,109 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:30:11" (1/1) ... [2024-11-12 17:30:11,113 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:30:11" (1/1) ... [2024-11-12 17:30:11,115 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:30:11" (1/1) ... [2024-11-12 17:30:11,116 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:30:11" (1/1) ... [2024-11-12 17:30:11,116 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:30:11" (1/1) ... [2024-11-12 17:30:11,121 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 17:30:11,122 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 17:30:11,122 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 17:30:11,122 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 17:30:11,122 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:30:11" (1/1) ... [2024-11-12 17:30:11,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 17:30:11,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:30:11,149 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) [2024-11-12 17:30:11,151 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 [2024-11-12 17:30:11,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 17:30:11,184 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-12 17:30:11,185 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-12 17:30:11,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 17:30:11,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 17:30:11,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 17:30:11,185 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-12 17:30:11,185 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-12 17:30:11,236 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 17:30:11,238 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 17:30:11,454 INFO L? ?]: Removed 50 outVars from TransFormulas that were not future-live. [2024-11-12 17:30:11,455 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 17:30:11,465 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 17:30:11,465 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-12 17:30:11,465 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 05:30:11 BoogieIcfgContainer [2024-11-12 17:30:11,466 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 17:30:11,467 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 17:30:11,467 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 17:30:11,469 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 17:30:11,470 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 05:30:10" (1/3) ... [2024-11-12 17:30:11,470 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@88fafe4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 05:30:11, skipping insertion in model container [2024-11-12 17:30:11,471 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:30:11" (2/3) ... [2024-11-12 17:30:11,471 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@88fafe4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 05:30:11, skipping insertion in model container [2024-11-12 17:30:11,471 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 05:30:11" (3/3) ... [2024-11-12 17:30:11,472 INFO L112 eAbstractionObserver]: Analyzing ICFG hard-ll_valuebound100.c [2024-11-12 17:30:11,484 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 17:30:11,484 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2024-11-12 17:30:11,531 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 17:30:11,537 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;@5f7d915b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 17:30:11,540 INFO L334 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2024-11-12 17:30:11,543 INFO L276 IsEmpty]: Start isEmpty. Operand has 81 states, 44 states have (on average 1.75) internal successors, (77), 68 states have internal predecessors, (77), 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) [2024-11-12 17:30:11,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-12 17:30:11,549 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:30:11,549 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:30:11,551 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-12 17:30:11,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:30:11,555 INFO L85 PathProgramCache]: Analyzing trace with hash -1890980195, now seen corresponding path program 1 times [2024-11-12 17:30:11,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:30:11,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818621474] [2024-11-12 17:30:11,562 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:30:11,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:30:11,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:11,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:30:11,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:11,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-12 17:30:11,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:11,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-12 17:30:11,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:11,674 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-12 17:30:11,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:30:11,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818621474] [2024-11-12 17:30:11,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818621474] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:30:11,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 17:30:11,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 17:30:11,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835084640] [2024-11-12 17:30:11,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:30:11,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-12 17:30:11,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:30:11,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-12 17:30:11,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-12 17:30:11,696 INFO L87 Difference]: Start difference. First operand has 81 states, 44 states have (on average 1.75) internal successors, (77), 68 states have internal predecessors, (77), 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) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-12 17:30:11,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:30:11,717 INFO L93 Difference]: Finished difference Result 158 states and 199 transitions. [2024-11-12 17:30:11,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-12 17:30:11,722 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2024-11-12 17:30:11,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:30:11,727 INFO L225 Difference]: With dead ends: 158 [2024-11-12 17:30:11,728 INFO L226 Difference]: Without dead ends: 73 [2024-11-12 17:30:11,730 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-12 17:30:11,732 INFO L435 NwaCegarLoop]: 90 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, 90 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 [2024-11-12 17:30:11,733 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 17:30:11,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-11-12 17:30:11,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2024-11-12 17:30:11,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 39 states have (on average 1.6666666666666667) internal successors, (65), 62 states have internal predecessors, (65), 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) [2024-11-12 17:30:11,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 81 transitions. [2024-11-12 17:30:11,775 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 81 transitions. Word has length 22 [2024-11-12 17:30:11,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:30:11,775 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 81 transitions. [2024-11-12 17:30:11,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-12 17:30:11,775 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 81 transitions. [2024-11-12 17:30:11,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-12 17:30:11,777 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:30:11,777 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:30:11,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 17:30:11,777 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-12 17:30:11,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:30:11,778 INFO L85 PathProgramCache]: Analyzing trace with hash 422543756, now seen corresponding path program 1 times [2024-11-12 17:30:11,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:30:11,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21863681] [2024-11-12 17:30:11,778 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:30:11,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:30:11,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-12 17:30:11,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [771116011] [2024-11-12 17:30:11,815 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:30:11,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:30:11,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:30:11,816 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) [2024-11-12 17:30:11,818 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-12 17:30:11,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:11,873 INFO L256 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-12 17:30:11,877 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:30:11,913 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-12 17:30:11,913 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 17:30:11,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:30:11,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21863681] [2024-11-12 17:30:11,914 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-12 17:30:11,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [771116011] [2024-11-12 17:30:11,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [771116011] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:30:11,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 17:30:11,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 17:30:11,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117837810] [2024-11-12 17:30:11,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:30:11,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 17:30:11,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:30:11,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 17:30:11,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 17:30:11,917 INFO L87 Difference]: Start difference. First operand 73 states and 81 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2024-11-12 17:30:11,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:30:11,980 INFO L93 Difference]: Finished difference Result 149 states and 168 transitions. [2024-11-12 17:30:11,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 17:30:11,981 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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 31 [2024-11-12 17:30:11,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:30:11,985 INFO L225 Difference]: With dead ends: 149 [2024-11-12 17:30:11,985 INFO L226 Difference]: Without dead ends: 100 [2024-11-12 17:30:11,985 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 17:30:11,986 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 20 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 17:30:11,987 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 131 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 17:30:11,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-11-12 17:30:12,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 94. [2024-11-12 17:30:12,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 55 states have (on average 1.6) internal successors, (88), 78 states have internal predecessors, (88), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-12 17:30:12,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 114 transitions. [2024-11-12 17:30:12,014 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 114 transitions. Word has length 31 [2024-11-12 17:30:12,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:30:12,018 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 114 transitions. [2024-11-12 17:30:12,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2024-11-12 17:30:12,018 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 114 transitions. [2024-11-12 17:30:12,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-12 17:30:12,019 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:30:12,019 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:30:12,044 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-12 17:30:12,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:30:12,220 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-12 17:30:12,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:30:12,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1895928885, now seen corresponding path program 1 times [2024-11-12 17:30:12,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:30:12,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336691210] [2024-11-12 17:30:12,221 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:30:12,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:30:12,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:12,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:30:12,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:12,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-12 17:30:12,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:12,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-12 17:30:12,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:12,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-12 17:30:12,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:12,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-12 17:30:12,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:12,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-12 17:30:12,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:12,392 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-12 17:30:12,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:30:12,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336691210] [2024-11-12 17:30:12,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336691210] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:30:12,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 17:30:12,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 17:30:12,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441870782] [2024-11-12 17:30:12,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:30:12,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 17:30:12,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:30:12,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 17:30:12,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 17:30:12,396 INFO L87 Difference]: Start difference. First operand 94 states and 114 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-12 17:30:12,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:30:12,478 INFO L93 Difference]: Finished difference Result 94 states and 114 transitions. [2024-11-12 17:30:12,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 17:30:12,478 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 39 [2024-11-12 17:30:12,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:30:12,480 INFO L225 Difference]: With dead ends: 94 [2024-11-12 17:30:12,481 INFO L226 Difference]: Without dead ends: 92 [2024-11-12 17:30:12,481 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 17:30:12,482 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 39 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 17:30:12,482 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 77 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 17:30:12,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-11-12 17:30:12,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2024-11-12 17:30:12,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 55 states have (on average 1.5454545454545454) internal successors, (85), 76 states have internal predecessors, (85), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-12 17:30:12,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 111 transitions. [2024-11-12 17:30:12,496 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 111 transitions. Word has length 39 [2024-11-12 17:30:12,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:30:12,496 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 111 transitions. [2024-11-12 17:30:12,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-12 17:30:12,497 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 111 transitions. [2024-11-12 17:30:12,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-12 17:30:12,497 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:30:12,498 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:30:12,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 17:30:12,498 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-12 17:30:12,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:30:12,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1355748025, now seen corresponding path program 1 times [2024-11-12 17:30:12,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:30:12,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347992856] [2024-11-12 17:30:12,498 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:30:12,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:30:12,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-12 17:30:12,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [661974109] [2024-11-12 17:30:12,524 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:30:12,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:30:12,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:30:12,525 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) [2024-11-12 17:30:12,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-12 17:30:12,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:12,566 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-12 17:30:12,568 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:30:12,592 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-12 17:30:12,592 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 17:30:12,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:30:12,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347992856] [2024-11-12 17:30:12,593 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-12 17:30:12,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [661974109] [2024-11-12 17:30:12,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [661974109] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:30:12,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 17:30:12,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 17:30:12,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632013945] [2024-11-12 17:30:12,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:30:12,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 17:30:12,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:30:12,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 17:30:12,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 17:30:12,598 INFO L87 Difference]: Start difference. First operand 92 states and 111 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-12 17:30:12,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:30:12,643 INFO L93 Difference]: Finished difference Result 126 states and 154 transitions. [2024-11-12 17:30:12,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 17:30:12,643 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 40 [2024-11-12 17:30:12,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:30:12,644 INFO L225 Difference]: With dead ends: 126 [2024-11-12 17:30:12,645 INFO L226 Difference]: Without dead ends: 122 [2024-11-12 17:30:12,645 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 17:30:12,645 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 37 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 17:30:12,646 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 105 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 17:30:12,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-12 17:30:12,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 109. [2024-11-12 17:30:12,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 70 states have (on average 1.5285714285714285) internal successors, (107), 91 states have internal predecessors, (107), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-12 17:30:12,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 137 transitions. [2024-11-12 17:30:12,653 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 137 transitions. Word has length 40 [2024-11-12 17:30:12,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:30:12,654 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 137 transitions. [2024-11-12 17:30:12,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-12 17:30:12,654 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 137 transitions. [2024-11-12 17:30:12,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-12 17:30:12,655 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:30:12,655 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:30:12,669 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-12 17:30:12,856 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,SelfDestructingSolverStorable3 [2024-11-12 17:30:12,856 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-12 17:30:12,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:30:12,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1355746647, now seen corresponding path program 1 times [2024-11-12 17:30:12,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:30:12,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121599777] [2024-11-12 17:30:12,857 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:30:12,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:30:12,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:12,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:30:12,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:12,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-12 17:30:12,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:12,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-12 17:30:12,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:12,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-12 17:30:12,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:12,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-12 17:30:12,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:12,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-12 17:30:12,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:12,962 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-12 17:30:12,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:30:12,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121599777] [2024-11-12 17:30:12,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121599777] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:30:12,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 17:30:12,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 17:30:12,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491672249] [2024-11-12 17:30:12,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:30:12,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 17:30:12,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:30:12,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 17:30:12,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 17:30:12,967 INFO L87 Difference]: Start difference. First operand 109 states and 137 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-12 17:30:13,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:30:13,009 INFO L93 Difference]: Finished difference Result 116 states and 142 transitions. [2024-11-12 17:30:13,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 17:30:13,009 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 40 [2024-11-12 17:30:13,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:30:13,010 INFO L225 Difference]: With dead ends: 116 [2024-11-12 17:30:13,010 INFO L226 Difference]: Without dead ends: 115 [2024-11-12 17:30:13,011 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 17:30:13,013 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 14 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 17:30:13,013 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 126 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 17:30:13,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-12 17:30:13,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 109. [2024-11-12 17:30:13,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 70 states have (on average 1.5142857142857142) internal successors, (106), 91 states have internal predecessors, (106), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-12 17:30:13,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 136 transitions. [2024-11-12 17:30:13,025 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 136 transitions. Word has length 40 [2024-11-12 17:30:13,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:30:13,027 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 136 transitions. [2024-11-12 17:30:13,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-12 17:30:13,027 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 136 transitions. [2024-11-12 17:30:13,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-12 17:30:13,028 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:30:13,028 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:30:13,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-12 17:30:13,028 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-12 17:30:13,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:30:13,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1498758743, now seen corresponding path program 1 times [2024-11-12 17:30:13,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:30:13,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697805084] [2024-11-12 17:30:13,030 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:30:13,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:30:13,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:13,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:30:13,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:13,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-12 17:30:13,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:13,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-12 17:30:13,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:13,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-12 17:30:13,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:13,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-12 17:30:13,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:13,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-12 17:30:13,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:13,139 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-12 17:30:13,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:30:13,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697805084] [2024-11-12 17:30:13,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697805084] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:30:13,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 17:30:13,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 17:30:13,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283930521] [2024-11-12 17:30:13,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:30:13,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 17:30:13,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:30:13,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 17:30:13,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 17:30:13,143 INFO L87 Difference]: Start difference. First operand 109 states and 136 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-12 17:30:13,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:30:13,411 INFO L93 Difference]: Finished difference Result 124 states and 150 transitions. [2024-11-12 17:30:13,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 17:30:13,411 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 42 [2024-11-12 17:30:13,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:30:13,412 INFO L225 Difference]: With dead ends: 124 [2024-11-12 17:30:13,412 INFO L226 Difference]: Without dead ends: 123 [2024-11-12 17:30:13,412 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-12 17:30:13,413 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 85 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 17:30:13,413 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 108 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 17:30:13,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-11-12 17:30:13,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 113. [2024-11-12 17:30:13,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 74 states have (on average 1.4864864864864864) internal successors, (110), 95 states have internal predecessors, (110), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-12 17:30:13,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 140 transitions. [2024-11-12 17:30:13,433 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 140 transitions. Word has length 42 [2024-11-12 17:30:13,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:30:13,435 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 140 transitions. [2024-11-12 17:30:13,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-12 17:30:13,436 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 140 transitions. [2024-11-12 17:30:13,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-12 17:30:13,438 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:30:13,439 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:30:13,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-12 17:30:13,439 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-12 17:30:13,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:30:13,440 INFO L85 PathProgramCache]: Analyzing trace with hash 783119308, now seen corresponding path program 1 times [2024-11-12 17:30:13,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:30:13,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454385300] [2024-11-12 17:30:13,440 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:30:13,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:30:13,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-12 17:30:13,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1863815640] [2024-11-12 17:30:13,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:30:13,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:30:13,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:30:13,454 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) [2024-11-12 17:30:13,455 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-12 17:30:13,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:13,494 INFO L256 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 17:30:13,496 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:30:13,592 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-12 17:30:13,593 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 17:30:13,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:30:13,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454385300] [2024-11-12 17:30:13,593 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-12 17:30:13,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1863815640] [2024-11-12 17:30:13,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1863815640] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:30:13,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 17:30:13,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 17:30:13,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216162929] [2024-11-12 17:30:13,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:30:13,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 17:30:13,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:30:13,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 17:30:13,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 17:30:13,595 INFO L87 Difference]: Start difference. First operand 113 states and 140 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-12 17:30:13,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:30:13,654 INFO L93 Difference]: Finished difference Result 124 states and 147 transitions. [2024-11-12 17:30:13,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 17:30:13,654 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 43 [2024-11-12 17:30:13,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:30:13,655 INFO L225 Difference]: With dead ends: 124 [2024-11-12 17:30:13,656 INFO L226 Difference]: Without dead ends: 121 [2024-11-12 17:30:13,656 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 17:30:13,657 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 30 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 17:30:13,657 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 98 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 17:30:13,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-11-12 17:30:13,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 114. [2024-11-12 17:30:13,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 75 states have (on average 1.4533333333333334) internal successors, (109), 96 states have internal predecessors, (109), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-12 17:30:13,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 139 transitions. [2024-11-12 17:30:13,679 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 139 transitions. Word has length 43 [2024-11-12 17:30:13,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:30:13,679 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 139 transitions. [2024-11-12 17:30:13,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-12 17:30:13,680 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 139 transitions. [2024-11-12 17:30:13,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-12 17:30:13,681 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:30:13,682 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:30:13,693 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-12 17:30:13,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:30:13,886 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-12 17:30:13,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:30:13,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1636648139, now seen corresponding path program 1 times [2024-11-12 17:30:13,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:30:13,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483956493] [2024-11-12 17:30:13,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:30:13,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:30:13,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-12 17:30:13,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [982028709] [2024-11-12 17:30:13,904 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:30:13,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:30:13,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:30:13,907 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) [2024-11-12 17:30:13,908 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-12 17:30:13,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:13,949 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-12 17:30:13,950 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:30:14,111 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-12 17:30:14,112 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:30:14,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:30:14,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483956493] [2024-11-12 17:30:14,258 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-12 17:30:14,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [982028709] [2024-11-12 17:30:14,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [982028709] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:30:14,259 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-12 17:30:14,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-12 17:30:14,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969360092] [2024-11-12 17:30:14,260 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-12 17:30:14,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-12 17:30:14,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:30:14,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-12 17:30:14,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-12 17:30:14,261 INFO L87 Difference]: Start difference. First operand 114 states and 139 transitions. Second operand has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 8 states have internal predecessors, (23), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-12 17:30:14,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:30:14,570 INFO L93 Difference]: Finished difference Result 130 states and 160 transitions. [2024-11-12 17:30:14,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-12 17:30:14,570 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 8 states have internal predecessors, (23), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 54 [2024-11-12 17:30:14,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:30:14,571 INFO L225 Difference]: With dead ends: 130 [2024-11-12 17:30:14,571 INFO L226 Difference]: Without dead ends: 122 [2024-11-12 17:30:14,571 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2024-11-12 17:30:14,572 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 114 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 17:30:14,572 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 237 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 17:30:14,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-12 17:30:14,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 120. [2024-11-12 17:30:14,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 83 states have (on average 1.3493975903614457) internal successors, (112), 100 states have internal predecessors, (112), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-12 17:30:14,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 146 transitions. [2024-11-12 17:30:14,585 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 146 transitions. Word has length 54 [2024-11-12 17:30:14,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:30:14,586 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 146 transitions. [2024-11-12 17:30:14,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 8 states have internal predecessors, (23), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-12 17:30:14,586 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 146 transitions. [2024-11-12 17:30:14,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-12 17:30:14,588 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:30:14,588 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:30:14,603 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-12 17:30:14,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:30:14,789 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-12 17:30:14,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:30:14,789 INFO L85 PathProgramCache]: Analyzing trace with hash -803515191, now seen corresponding path program 1 times [2024-11-12 17:30:14,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:30:14,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170437948] [2024-11-12 17:30:14,789 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:30:14,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:30:14,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-12 17:30:14,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1456831095] [2024-11-12 17:30:14,799 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:30:14,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:30:14,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:30:14,801 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) [2024-11-12 17:30:14,802 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-12 17:30:14,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:14,837 INFO L256 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-12 17:30:14,839 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:30:14,953 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-12 17:30:14,954 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:30:15,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:30:15,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170437948] [2024-11-12 17:30:15,078 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-12 17:30:15,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1456831095] [2024-11-12 17:30:15,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1456831095] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:30:15,079 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-12 17:30:15,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-12 17:30:15,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783871936] [2024-11-12 17:30:15,079 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-12 17:30:15,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-12 17:30:15,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:30:15,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-12 17:30:15,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-12 17:30:15,080 INFO L87 Difference]: Start difference. First operand 120 states and 146 transitions. Second operand has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 8 states have internal predecessors, (24), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-12 17:30:15,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:30:15,338 INFO L93 Difference]: Finished difference Result 192 states and 245 transitions. [2024-11-12 17:30:15,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-12 17:30:15,338 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 8 states have internal predecessors, (24), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 55 [2024-11-12 17:30:15,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:30:15,340 INFO L225 Difference]: With dead ends: 192 [2024-11-12 17:30:15,340 INFO L226 Difference]: Without dead ends: 188 [2024-11-12 17:30:15,340 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2024-11-12 17:30:15,340 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 163 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 17:30:15,341 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 287 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 17:30:15,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2024-11-12 17:30:15,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 179. [2024-11-12 17:30:15,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 133 states have (on average 1.3533834586466165) internal successors, (180), 150 states have internal predecessors, (180), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-12 17:30:15,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 232 transitions. [2024-11-12 17:30:15,355 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 232 transitions. Word has length 55 [2024-11-12 17:30:15,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:30:15,355 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 232 transitions. [2024-11-12 17:30:15,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 8 states have internal predecessors, (24), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-12 17:30:15,355 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 232 transitions. [2024-11-12 17:30:15,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-12 17:30:15,356 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:30:15,356 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:30:15,372 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-12 17:30:15,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:30:15,563 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-12 17:30:15,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:30:15,563 INFO L85 PathProgramCache]: Analyzing trace with hash 2102091629, now seen corresponding path program 1 times [2024-11-12 17:30:15,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:30:15,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351344164] [2024-11-12 17:30:15,564 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:30:15,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:30:15,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:15,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:30:15,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:15,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-12 17:30:15,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:15,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-12 17:30:15,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:15,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-12 17:30:15,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:15,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-12 17:30:15,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:15,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-12 17:30:15,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:15,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-12 17:30:15,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:15,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-12 17:30:15,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:15,642 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-12 17:30:15,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:30:15,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351344164] [2024-11-12 17:30:15,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351344164] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:30:15,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 17:30:15,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 17:30:15,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138957205] [2024-11-12 17:30:15,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:30:15,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 17:30:15,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:30:15,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 17:30:15,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 17:30:15,644 INFO L87 Difference]: Start difference. First operand 179 states and 232 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-12 17:30:15,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:30:15,963 INFO L93 Difference]: Finished difference Result 188 states and 241 transitions. [2024-11-12 17:30:15,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 17:30:15,963 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 59 [2024-11-12 17:30:15,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:30:15,965 INFO L225 Difference]: With dead ends: 188 [2024-11-12 17:30:15,965 INFO L226 Difference]: Without dead ends: 173 [2024-11-12 17:30:15,965 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-12 17:30:15,965 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 39 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-12 17:30:15,966 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 139 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-12 17:30:15,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-11-12 17:30:15,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 146. [2024-11-12 17:30:15,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 106 states have (on average 1.4056603773584906) internal successors, (149), 123 states have internal predecessors, (149), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-12 17:30:15,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 189 transitions. [2024-11-12 17:30:15,981 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 189 transitions. Word has length 59 [2024-11-12 17:30:15,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:30:15,981 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 189 transitions. [2024-11-12 17:30:15,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-12 17:30:15,982 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 189 transitions. [2024-11-12 17:30:15,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-12 17:30:15,982 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:30:15,982 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 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] [2024-11-12 17:30:15,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-12 17:30:15,982 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-12 17:30:15,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:30:15,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1900976566, now seen corresponding path program 1 times [2024-11-12 17:30:15,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:30:15,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036242323] [2024-11-12 17:30:15,983 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:30:15,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:30:15,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:16,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:30:16,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:16,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-12 17:30:16,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:16,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-12 17:30:16,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:16,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-12 17:30:16,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:16,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-12 17:30:16,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:16,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-12 17:30:16,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:16,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-12 17:30:16,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:16,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-12 17:30:16,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:16,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-12 17:30:16,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:16,063 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-12 17:30:16,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:30:16,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036242323] [2024-11-12 17:30:16,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036242323] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:30:16,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1162276185] [2024-11-12 17:30:16,064 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:30:16,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:30:16,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:30:16,065 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) [2024-11-12 17:30:16,067 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-12 17:30:16,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:16,106 INFO L256 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-12 17:30:16,107 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:30:16,134 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-12 17:30:16,135 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:30:16,186 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-12 17:30:16,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1162276185] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 17:30:16,187 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 17:30:16,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-11-12 17:30:16,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928841422] [2024-11-12 17:30:16,187 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 17:30:16,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 17:30:16,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:30:16,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 17:30:16,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 17:30:16,188 INFO L87 Difference]: Start difference. First operand 146 states and 189 transitions. Second operand has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-12 17:30:16,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:30:16,300 INFO L93 Difference]: Finished difference Result 256 states and 328 transitions. [2024-11-12 17:30:16,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 17:30:16,300 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 63 [2024-11-12 17:30:16,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:30:16,302 INFO L225 Difference]: With dead ends: 256 [2024-11-12 17:30:16,302 INFO L226 Difference]: Without dead ends: 254 [2024-11-12 17:30:16,302 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 17:30:16,302 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 101 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 17:30:16,303 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 233 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 17:30:16,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2024-11-12 17:30:16,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 204. [2024-11-12 17:30:16,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 154 states have (on average 1.4025974025974026) internal successors, (216), 171 states have internal predecessors, (216), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-12 17:30:16,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 276 transitions. [2024-11-12 17:30:16,319 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 276 transitions. Word has length 63 [2024-11-12 17:30:16,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:30:16,319 INFO L471 AbstractCegarLoop]: Abstraction has 204 states and 276 transitions. [2024-11-12 17:30:16,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-12 17:30:16,319 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 276 transitions. [2024-11-12 17:30:16,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-12 17:30:16,320 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:30:16,320 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:30:16,336 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-12 17:30:16,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:30:16,521 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-12 17:30:16,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:30:16,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1677921032, now seen corresponding path program 2 times [2024-11-12 17:30:16,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:30:16,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2937177] [2024-11-12 17:30:16,522 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:30:16,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:30:16,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-12 17:30:16,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1397893030] [2024-11-12 17:30:16,547 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-12 17:30:16,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:30:16,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:30:16,548 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) [2024-11-12 17:30:16,550 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-12 17:30:16,590 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-12 17:30:16,590 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 17:30:16,591 INFO L256 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-12 17:30:16,593 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:30:16,795 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-12 17:30:16,796 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:30:16,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:30:16,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2937177] [2024-11-12 17:30:16,916 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-12 17:30:16,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1397893030] [2024-11-12 17:30:16,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1397893030] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:30:16,916 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-12 17:30:16,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-12 17:30:16,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330278526] [2024-11-12 17:30:16,917 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-12 17:30:16,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-12 17:30:16,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:30:16,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-12 17:30:16,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-11-12 17:30:16,918 INFO L87 Difference]: Start difference. First operand 204 states and 276 transitions. Second operand has 10 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 10 states have internal predecessors, (32), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-12 17:30:17,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:30:17,328 INFO L93 Difference]: Finished difference Result 274 states and 367 transitions. [2024-11-12 17:30:17,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-12 17:30:17,329 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 10 states have internal predecessors, (32), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 78 [2024-11-12 17:30:17,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:30:17,330 INFO L225 Difference]: With dead ends: 274 [2024-11-12 17:30:17,330 INFO L226 Difference]: Without dead ends: 270 [2024-11-12 17:30:17,331 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2024-11-12 17:30:17,331 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 135 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-12 17:30:17,332 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 436 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 545 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-12 17:30:17,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2024-11-12 17:30:17,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 204. [2024-11-12 17:30:17,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 154 states have (on average 1.3896103896103895) internal successors, (214), 171 states have internal predecessors, (214), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-12 17:30:17,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 274 transitions. [2024-11-12 17:30:17,348 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 274 transitions. Word has length 78 [2024-11-12 17:30:17,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:30:17,348 INFO L471 AbstractCegarLoop]: Abstraction has 204 states and 274 transitions. [2024-11-12 17:30:17,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 10 states have internal predecessors, (32), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-12 17:30:17,348 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 274 transitions. [2024-11-12 17:30:17,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-12 17:30:17,357 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:30:17,357 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 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] [2024-11-12 17:30:17,369 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-12 17:30:17,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:30:17,558 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-12 17:30:17,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:30:17,559 INFO L85 PathProgramCache]: Analyzing trace with hash 343448633, now seen corresponding path program 1 times [2024-11-12 17:30:17,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:30:17,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809406903] [2024-11-12 17:30:17,559 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:30:17,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:30:17,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:17,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:30:17,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:17,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-12 17:30:17,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:17,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-12 17:30:17,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:17,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-12 17:30:17,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:17,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-12 17:30:17,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:17,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-12 17:30:17,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:17,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-12 17:30:17,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:17,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-12 17:30:17,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:17,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-12 17:30:17,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:17,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-12 17:30:17,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:17,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-12 17:30:17,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:17,614 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2024-11-12 17:30:17,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:30:17,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809406903] [2024-11-12 17:30:17,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809406903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:30:17,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 17:30:17,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 17:30:17,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692513339] [2024-11-12 17:30:17,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:30:17,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 17:30:17,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:30:17,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 17:30:17,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 17:30:17,616 INFO L87 Difference]: Start difference. First operand 204 states and 274 transitions. Second operand has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-12 17:30:17,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:30:17,653 INFO L93 Difference]: Finished difference Result 204 states and 274 transitions. [2024-11-12 17:30:17,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 17:30:17,653 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 85 [2024-11-12 17:30:17,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:30:17,654 INFO L225 Difference]: With dead ends: 204 [2024-11-12 17:30:17,654 INFO L226 Difference]: Without dead ends: 203 [2024-11-12 17:30:17,655 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 17:30:17,655 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 2 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 17:30:17,655 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 116 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 17:30:17,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2024-11-12 17:30:17,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2024-11-12 17:30:17,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 154 states have (on average 1.37012987012987) internal successors, (211), 170 states have internal predecessors, (211), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-12 17:30:17,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 271 transitions. [2024-11-12 17:30:17,668 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 271 transitions. Word has length 85 [2024-11-12 17:30:17,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:30:17,668 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 271 transitions. [2024-11-12 17:30:17,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-12 17:30:17,668 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 271 transitions. [2024-11-12 17:30:17,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-12 17:30:17,669 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:30:17,669 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 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] [2024-11-12 17:30:17,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-12 17:30:17,669 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-12 17:30:17,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:30:17,669 INFO L85 PathProgramCache]: Analyzing trace with hash 2056973142, now seen corresponding path program 1 times [2024-11-12 17:30:17,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:30:17,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670450684] [2024-11-12 17:30:17,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:30:17,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:30:17,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:17,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:30:17,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:17,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-12 17:30:17,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:17,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-12 17:30:17,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:17,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-12 17:30:17,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:17,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-12 17:30:17,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:17,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-12 17:30:17,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:17,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-12 17:30:17,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:17,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-12 17:30:17,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:17,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-12 17:30:17,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:17,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-12 17:30:17,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:17,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-12 17:30:17,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:17,803 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2024-11-12 17:30:17,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:30:17,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670450684] [2024-11-12 17:30:17,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670450684] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:30:17,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 17:30:17,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 17:30:17,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970617054] [2024-11-12 17:30:17,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:30:17,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 17:30:17,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:30:17,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 17:30:17,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-12 17:30:17,805 INFO L87 Difference]: Start difference. First operand 203 states and 271 transitions. Second operand has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-12 17:30:18,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:30:18,070 INFO L93 Difference]: Finished difference Result 364 states and 506 transitions. [2024-11-12 17:30:18,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 17:30:18,070 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 86 [2024-11-12 17:30:18,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:30:18,071 INFO L225 Difference]: With dead ends: 364 [2024-11-12 17:30:18,072 INFO L226 Difference]: Without dead ends: 363 [2024-11-12 17:30:18,072 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-12 17:30:18,072 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 94 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 17:30:18,072 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 264 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 17:30:18,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2024-11-12 17:30:18,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 305. [2024-11-12 17:30:18,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 244 states have (on average 1.4344262295081966) internal successors, (350), 260 states have internal predecessors, (350), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-12 17:30:18,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 434 transitions. [2024-11-12 17:30:18,094 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 434 transitions. Word has length 86 [2024-11-12 17:30:18,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:30:18,094 INFO L471 AbstractCegarLoop]: Abstraction has 305 states and 434 transitions. [2024-11-12 17:30:18,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-12 17:30:18,094 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 434 transitions. [2024-11-12 17:30:18,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-12 17:30:18,095 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:30:18,095 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 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] [2024-11-12 17:30:18,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-12 17:30:18,095 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-12 17:30:18,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:30:18,096 INFO L85 PathProgramCache]: Analyzing trace with hash -658341925, now seen corresponding path program 1 times [2024-11-12 17:30:18,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:30:18,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025083614] [2024-11-12 17:30:18,097 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:30:18,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:30:18,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:18,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:30:18,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:18,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-12 17:30:18,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:18,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-12 17:30:18,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:18,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-12 17:30:18,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:18,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-12 17:30:18,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:18,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-12 17:30:18,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:18,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-12 17:30:18,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:18,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-12 17:30:18,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:18,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-12 17:30:18,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:18,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-12 17:30:18,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:18,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-12 17:30:18,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:18,238 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-12 17:30:18,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:30:18,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025083614] [2024-11-12 17:30:18,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025083614] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:30:18,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [433046953] [2024-11-12 17:30:18,239 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:30:18,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:30:18,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:30:18,240 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) [2024-11-12 17:30:18,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-12 17:30:18,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:18,286 INFO L256 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 17:30:18,287 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:30:18,421 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2024-11-12 17:30:18,422 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 17:30:18,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [433046953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:30:18,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 17:30:18,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-11-12 17:30:18,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690327430] [2024-11-12 17:30:18,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:30:18,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 17:30:18,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:30:18,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 17:30:18,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2024-11-12 17:30:18,424 INFO L87 Difference]: Start difference. First operand 305 states and 434 transitions. Second operand has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-12 17:30:18,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:30:18,590 INFO L93 Difference]: Finished difference Result 364 states and 505 transitions. [2024-11-12 17:30:18,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 17:30:18,591 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 87 [2024-11-12 17:30:18,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:30:18,592 INFO L225 Difference]: With dead ends: 364 [2024-11-12 17:30:18,593 INFO L226 Difference]: Without dead ends: 363 [2024-11-12 17:30:18,594 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 106 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2024-11-12 17:30:18,594 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 44 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 17:30:18,595 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 170 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 17:30:18,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2024-11-12 17:30:18,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 314. [2024-11-12 17:30:18,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 253 states have (on average 1.4189723320158103) internal successors, (359), 269 states have internal predecessors, (359), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-12 17:30:18,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 443 transitions. [2024-11-12 17:30:18,624 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 443 transitions. Word has length 87 [2024-11-12 17:30:18,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:30:18,625 INFO L471 AbstractCegarLoop]: Abstraction has 314 states and 443 transitions. [2024-11-12 17:30:18,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-12 17:30:18,625 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 443 transitions. [2024-11-12 17:30:18,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-12 17:30:18,625 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:30:18,625 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 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] [2024-11-12 17:30:18,638 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-12 17:30:18,825 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 [2024-11-12 17:30:18,826 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-12 17:30:18,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:30:18,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1066236920, now seen corresponding path program 1 times [2024-11-12 17:30:18,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:30:18,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103338997] [2024-11-12 17:30:18,827 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:30:18,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:30:18,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:18,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:30:18,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:18,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-12 17:30:18,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:18,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-12 17:30:18,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:18,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-12 17:30:18,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:18,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-12 17:30:18,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:18,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-12 17:30:18,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:18,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-12 17:30:18,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:18,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-12 17:30:18,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:18,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-12 17:30:18,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:18,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-12 17:30:18,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:18,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-12 17:30:18,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:18,965 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-12 17:30:18,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:30:18,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103338997] [2024-11-12 17:30:18,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103338997] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:30:18,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1762747553] [2024-11-12 17:30:18,966 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:30:18,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:30:18,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:30:18,968 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) [2024-11-12 17:30:18,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-12 17:30:19,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:19,010 INFO L256 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 17:30:19,011 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:30:19,103 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2024-11-12 17:30:19,104 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 17:30:19,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1762747553] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:30:19,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 17:30:19,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-12 17:30:19,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184870642] [2024-11-12 17:30:19,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:30:19,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 17:30:19,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:30:19,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 17:30:19,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-12 17:30:19,105 INFO L87 Difference]: Start difference. First operand 314 states and 443 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-12 17:30:19,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:30:19,246 INFO L93 Difference]: Finished difference Result 321 states and 449 transitions. [2024-11-12 17:30:19,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 17:30:19,246 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 88 [2024-11-12 17:30:19,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:30:19,247 INFO L225 Difference]: With dead ends: 321 [2024-11-12 17:30:19,248 INFO L226 Difference]: Without dead ends: 319 [2024-11-12 17:30:19,248 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-12 17:30:19,248 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 25 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 17:30:19,248 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 124 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 17:30:19,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2024-11-12 17:30:19,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 317. [2024-11-12 17:30:19,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 256 states have (on average 1.40625) internal successors, (360), 272 states have internal predecessors, (360), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-12 17:30:19,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 444 transitions. [2024-11-12 17:30:19,269 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 444 transitions. Word has length 88 [2024-11-12 17:30:19,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:30:19,269 INFO L471 AbstractCegarLoop]: Abstraction has 317 states and 444 transitions. [2024-11-12 17:30:19,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-12 17:30:19,269 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 444 transitions. [2024-11-12 17:30:19,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-12 17:30:19,270 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:30:19,270 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 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] [2024-11-12 17:30:19,283 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-12 17:30:19,474 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,SelfDestructingSolverStorable15 [2024-11-12 17:30:19,474 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-12 17:30:19,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:30:19,475 INFO L85 PathProgramCache]: Analyzing trace with hash -1843501158, now seen corresponding path program 1 times [2024-11-12 17:30:19,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:30:19,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467132717] [2024-11-12 17:30:19,475 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:30:19,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:30:19,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-12 17:30:19,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1200332162] [2024-11-12 17:30:19,490 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:30:19,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:30:19,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:30:19,492 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) [2024-11-12 17:30:19,493 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-12 17:30:19,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:19,534 INFO L256 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-12 17:30:19,536 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:30:19,915 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-12 17:30:19,916 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:30:20,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:30:20,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467132717] [2024-11-12 17:30:20,256 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-12 17:30:20,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1200332162] [2024-11-12 17:30:20,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1200332162] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:30:20,257 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-12 17:30:20,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-12 17:30:20,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663912149] [2024-11-12 17:30:20,257 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-12 17:30:20,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-12 17:30:20,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:30:20,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-12 17:30:20,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2024-11-12 17:30:20,258 INFO L87 Difference]: Start difference. First operand 317 states and 444 transitions. Second operand has 12 states, 11 states have (on average 4.0) internal successors, (44), 11 states have internal predecessors, (44), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-12 17:30:20,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:30:20,654 INFO L93 Difference]: Finished difference Result 394 states and 547 transitions. [2024-11-12 17:30:20,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-12 17:30:20,654 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.0) internal successors, (44), 11 states have internal predecessors, (44), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 90 [2024-11-12 17:30:20,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:30:20,656 INFO L225 Difference]: With dead ends: 394 [2024-11-12 17:30:20,656 INFO L226 Difference]: Without dead ends: 393 [2024-11-12 17:30:20,660 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-12 17:30:20,661 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 113 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-12 17:30:20,661 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 290 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-12 17:30:20,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2024-11-12 17:30:20,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 366. [2024-11-12 17:30:20,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 299 states have (on average 1.3812709030100334) internal successors, (413), 315 states have internal predecessors, (413), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-12 17:30:20,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 509 transitions. [2024-11-12 17:30:20,696 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 509 transitions. Word has length 90 [2024-11-12 17:30:20,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:30:20,696 INFO L471 AbstractCegarLoop]: Abstraction has 366 states and 509 transitions. [2024-11-12 17:30:20,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.0) internal successors, (44), 11 states have internal predecessors, (44), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-12 17:30:20,696 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 509 transitions. [2024-11-12 17:30:20,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-12 17:30:20,697 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:30:20,697 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 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] [2024-11-12 17:30:20,709 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-12 17:30:20,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-12 17:30:20,898 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-12 17:30:20,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:30:20,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1313960969, now seen corresponding path program 1 times [2024-11-12 17:30:20,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:30:20,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992959087] [2024-11-12 17:30:20,899 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:30:20,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:30:20,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-12 17:30:20,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [850303587] [2024-11-12 17:30:20,912 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:30:20,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:30:20,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:30:20,913 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) [2024-11-12 17:30:20,914 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-12 17:30:20,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:20,957 INFO L256 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-12 17:30:20,958 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:30:21,325 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-12 17:30:21,325 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:30:21,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:30:21,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992959087] [2024-11-12 17:30:21,561 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-12 17:30:21,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [850303587] [2024-11-12 17:30:21,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [850303587] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:30:21,561 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-12 17:30:21,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-12 17:30:21,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565795130] [2024-11-12 17:30:21,561 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-12 17:30:21,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-12 17:30:21,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:30:21,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-12 17:30:21,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2024-11-12 17:30:21,562 INFO L87 Difference]: Start difference. First operand 366 states and 509 transitions. Second operand has 12 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-12 17:30:21,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:30:21,919 INFO L93 Difference]: Finished difference Result 429 states and 596 transitions. [2024-11-12 17:30:21,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-12 17:30:21,920 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 91 [2024-11-12 17:30:21,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:30:21,921 INFO L225 Difference]: With dead ends: 429 [2024-11-12 17:30:21,921 INFO L226 Difference]: Without dead ends: 428 [2024-11-12 17:30:21,922 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2024-11-12 17:30:21,923 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 96 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 636 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-12 17:30:21,923 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 303 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 636 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-12 17:30:21,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2024-11-12 17:30:21,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 415. [2024-11-12 17:30:21,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 342 states have (on average 1.3567251461988303) internal successors, (464), 358 states have internal predecessors, (464), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-12 17:30:21,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 572 transitions. [2024-11-12 17:30:21,948 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 572 transitions. Word has length 91 [2024-11-12 17:30:21,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:30:21,948 INFO L471 AbstractCegarLoop]: Abstraction has 415 states and 572 transitions. [2024-11-12 17:30:21,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-12 17:30:21,948 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 572 transitions. [2024-11-12 17:30:21,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-12 17:30:21,949 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:30:21,949 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 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] [2024-11-12 17:30:21,961 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-12 17:30:22,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-12 17:30:22,153 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-12 17:30:22,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:30:22,153 INFO L85 PathProgramCache]: Analyzing trace with hash -2078084292, now seen corresponding path program 1 times [2024-11-12 17:30:22,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:30:22,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093122611] [2024-11-12 17:30:22,154 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:30:22,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:30:22,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:22,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:30:22,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:22,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-12 17:30:22,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:22,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-12 17:30:22,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:22,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-12 17:30:22,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:22,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-12 17:30:22,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:22,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-12 17:30:22,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:22,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-12 17:30:22,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:22,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-12 17:30:22,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:22,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-12 17:30:22,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:22,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-12 17:30:22,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:22,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-12 17:30:22,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:22,256 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2024-11-12 17:30:22,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:30:22,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093122611] [2024-11-12 17:30:22,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093122611] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:30:22,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 17:30:22,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 17:30:22,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70692209] [2024-11-12 17:30:22,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:30:22,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 17:30:22,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:30:22,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 17:30:22,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 17:30:22,258 INFO L87 Difference]: Start difference. First operand 415 states and 572 transitions. Second operand has 5 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-12 17:30:22,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:30:22,499 INFO L93 Difference]: Finished difference Result 415 states and 572 transitions. [2024-11-12 17:30:22,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 17:30:22,499 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 92 [2024-11-12 17:30:22,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:30:22,501 INFO L225 Difference]: With dead ends: 415 [2024-11-12 17:30:22,501 INFO L226 Difference]: Without dead ends: 414 [2024-11-12 17:30:22,501 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-12 17:30:22,502 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 71 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 17:30:22,502 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 116 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 17:30:22,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2024-11-12 17:30:22,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 402. [2024-11-12 17:30:22,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 330 states have (on average 1.3272727272727274) internal successors, (438), 345 states have internal predecessors, (438), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-12 17:30:22,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 546 transitions. [2024-11-12 17:30:22,528 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 546 transitions. Word has length 92 [2024-11-12 17:30:22,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:30:22,528 INFO L471 AbstractCegarLoop]: Abstraction has 402 states and 546 transitions. [2024-11-12 17:30:22,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-12 17:30:22,529 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 546 transitions. [2024-11-12 17:30:22,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-12 17:30:22,529 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:30:22,529 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 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] [2024-11-12 17:30:22,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-12 17:30:22,529 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-12 17:30:22,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:30:22,530 INFO L85 PathProgramCache]: Analyzing trace with hash 3896473, now seen corresponding path program 1 times [2024-11-12 17:30:22,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:30:22,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414583251] [2024-11-12 17:30:22,530 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:30:22,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:30:22,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-12 17:30:22,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1770285478] [2024-11-12 17:30:22,552 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:30:22,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:30:22,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:30:22,553 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) [2024-11-12 17:30:22,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-12 17:30:22,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:22,596 INFO L256 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-12 17:30:22,598 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:30:23,119 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-12 17:30:23,120 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:30:24,611 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-12 17:30:24,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:30:24,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414583251] [2024-11-12 17:30:24,612 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-12 17:30:24,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1770285478] [2024-11-12 17:30:24,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1770285478] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 17:30:24,612 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-12 17:30:24,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 22 [2024-11-12 17:30:24,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019251955] [2024-11-12 17:30:24,612 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-12 17:30:24,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-12 17:30:24,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:30:24,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-12 17:30:24,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=384, Unknown=0, NotChecked=0, Total=506 [2024-11-12 17:30:24,614 INFO L87 Difference]: Start difference. First operand 402 states and 546 transitions. Second operand has 23 states, 22 states have (on average 3.772727272727273) internal successors, (83), 23 states have internal predecessors, (83), 8 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) [2024-11-12 17:30:28,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:30:28,481 INFO L93 Difference]: Finished difference Result 564 states and 764 transitions. [2024-11-12 17:30:28,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-12 17:30:28,482 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 3.772727272727273) internal successors, (83), 23 states have internal predecessors, (83), 8 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) Word has length 93 [2024-11-12 17:30:28,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:30:28,484 INFO L225 Difference]: With dead ends: 564 [2024-11-12 17:30:28,484 INFO L226 Difference]: Without dead ends: 444 [2024-11-12 17:30:28,486 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 540 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=566, Invalid=1786, Unknown=0, NotChecked=0, Total=2352 [2024-11-12 17:30:28,487 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 349 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 1015 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 1111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-12 17:30:28,487 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 341 Invalid, 1111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 1015 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-12 17:30:28,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2024-11-12 17:30:28,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 400. [2024-11-12 17:30:28,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 332 states have (on average 1.322289156626506) internal successors, (439), 347 states have internal predecessors, (439), 50 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-12 17:30:28,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 539 transitions. [2024-11-12 17:30:28,521 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 539 transitions. Word has length 93 [2024-11-12 17:30:28,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:30:28,521 INFO L471 AbstractCegarLoop]: Abstraction has 400 states and 539 transitions. [2024-11-12 17:30:28,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 3.772727272727273) internal successors, (83), 23 states have internal predecessors, (83), 8 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) [2024-11-12 17:30:28,522 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 539 transitions. [2024-11-12 17:30:28,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-12 17:30:28,522 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:30:28,522 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:30:28,542 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-12 17:30:28,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:30:28,724 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-12 17:30:28,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:30:28,724 INFO L85 PathProgramCache]: Analyzing trace with hash 2083569129, now seen corresponding path program 3 times [2024-11-12 17:30:28,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:30:28,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297377142] [2024-11-12 17:30:28,724 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:30:28,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:30:28,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-12 17:30:28,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [997833305] [2024-11-12 17:30:28,739 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-12 17:30:28,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:30:28,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:30:28,741 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) [2024-11-12 17:30:28,742 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-12 17:30:28,778 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-12 17:30:28,778 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 17:30:28,779 INFO L256 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-12 17:30:28,780 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:30:29,187 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 26 proven. 35 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2024-11-12 17:30:29,188 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:30:29,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:30:29,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297377142] [2024-11-12 17:30:29,334 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-12 17:30:29,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [997833305] [2024-11-12 17:30:29,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [997833305] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:30:29,334 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-12 17:30:29,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-12 17:30:29,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657707472] [2024-11-12 17:30:29,335 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-12 17:30:29,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-12 17:30:29,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:30:29,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-12 17:30:29,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=197, Unknown=1, NotChecked=0, Total=240 [2024-11-12 17:30:29,336 INFO L87 Difference]: Start difference. First operand 400 states and 539 transitions. Second operand has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 5 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-12 17:30:35,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-12 17:30:37,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:30:37,055 INFO L93 Difference]: Finished difference Result 431 states and 576 transitions. [2024-11-12 17:30:37,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-12 17:30:37,055 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 5 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 101 [2024-11-12 17:30:37,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:30:37,057 INFO L225 Difference]: With dead ends: 431 [2024-11-12 17:30:37,057 INFO L226 Difference]: Without dead ends: 427 [2024-11-12 17:30:37,057 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=130, Invalid=415, Unknown=7, NotChecked=0, Total=552 [2024-11-12 17:30:37,058 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 222 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 53 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-12 17:30:37,058 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 257 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 532 Invalid, 2 Unknown, 0 Unchecked, 3.2s Time] [2024-11-12 17:30:37,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2024-11-12 17:30:37,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 395. [2024-11-12 17:30:37,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 330 states have (on average 1.2878787878787878) internal successors, (425), 342 states have internal predecessors, (425), 50 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-12 17:30:37,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 525 transitions. [2024-11-12 17:30:37,094 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 525 transitions. Word has length 101 [2024-11-12 17:30:37,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:30:37,095 INFO L471 AbstractCegarLoop]: Abstraction has 395 states and 525 transitions. [2024-11-12 17:30:37,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 5 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-12 17:30:37,095 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 525 transitions. [2024-11-12 17:30:37,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-12 17:30:37,096 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:30:37,097 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 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] [2024-11-12 17:30:37,109 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-12 17:30:37,300 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,SelfDestructingSolverStorable20 [2024-11-12 17:30:37,301 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-12 17:30:37,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:30:37,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1599808360, now seen corresponding path program 1 times [2024-11-12 17:30:37,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:30:37,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4226499] [2024-11-12 17:30:37,301 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:30:37,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:30:37,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-12 17:30:37,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [423940894] [2024-11-12 17:30:37,322 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:30:37,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:30:37,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:30:37,324 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) [2024-11-12 17:30:37,325 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-12 17:30:37,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:37,370 INFO L256 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-12 17:30:37,371 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:30:37,686 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-11-12 17:30:37,686 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:30:38,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:30:38,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4226499] [2024-11-12 17:30:38,029 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-12 17:30:38,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [423940894] [2024-11-12 17:30:38,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [423940894] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:30:38,029 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-12 17:30:38,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-12 17:30:38,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865248120] [2024-11-12 17:30:38,030 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-12 17:30:38,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-12 17:30:38,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:30:38,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-12 17:30:38,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2024-11-12 17:30:38,031 INFO L87 Difference]: Start difference. First operand 395 states and 525 transitions. Second operand has 9 states, 8 states have (on average 6.0) internal successors, (48), 9 states have internal predecessors, (48), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-12 17:30:38,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:30:38,246 INFO L93 Difference]: Finished difference Result 400 states and 532 transitions. [2024-11-12 17:30:38,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-12 17:30:38,247 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 9 states have internal predecessors, (48), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 107 [2024-11-12 17:30:38,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:30:38,252 INFO L225 Difference]: With dead ends: 400 [2024-11-12 17:30:38,252 INFO L226 Difference]: Without dead ends: 399 [2024-11-12 17:30:38,252 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2024-11-12 17:30:38,253 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 30 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 17:30:38,253 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 210 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 17:30:38,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2024-11-12 17:30:38,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 396. [2024-11-12 17:30:38,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 331 states have (on average 1.2870090634441087) internal successors, (426), 343 states have internal predecessors, (426), 50 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-12 17:30:38,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 526 transitions. [2024-11-12 17:30:38,297 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 526 transitions. Word has length 107 [2024-11-12 17:30:38,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:30:38,297 INFO L471 AbstractCegarLoop]: Abstraction has 396 states and 526 transitions. [2024-11-12 17:30:38,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 9 states have internal predecessors, (48), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-12 17:30:38,297 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 526 transitions. [2024-11-12 17:30:38,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-12 17:30:38,298 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:30:38,298 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 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] [2024-11-12 17:30:38,311 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-12 17:30:38,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:30:38,498 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-12 17:30:38,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:30:38,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1945548517, now seen corresponding path program 1 times [2024-11-12 17:30:38,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:30:38,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544101569] [2024-11-12 17:30:38,499 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:30:38,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:30:38,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-12 17:30:38,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1616991637] [2024-11-12 17:30:38,513 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:30:38,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:30:38,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:30:38,515 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) [2024-11-12 17:30:38,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-12 17:30:38,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:38,561 INFO L256 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-12 17:30:38,563 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:30:38,931 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 7 proven. 16 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2024-11-12 17:30:38,931 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:30:39,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:30:39,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544101569] [2024-11-12 17:30:39,872 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-12 17:30:39,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1616991637] [2024-11-12 17:30:39,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1616991637] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:30:39,872 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-12 17:30:39,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-12 17:30:39,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104418040] [2024-11-12 17:30:39,873 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-12 17:30:39,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-12 17:30:39,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:30:39,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-12 17:30:39,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2024-11-12 17:30:39,874 INFO L87 Difference]: Start difference. First operand 396 states and 526 transitions. Second operand has 13 states, 12 states have (on average 4.333333333333333) internal successors, (52), 13 states have internal predecessors, (52), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-12 17:30:40,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:30:40,294 INFO L93 Difference]: Finished difference Result 668 states and 905 transitions. [2024-11-12 17:30:40,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-12 17:30:40,295 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.333333333333333) internal successors, (52), 13 states have internal predecessors, (52), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) Word has length 108 [2024-11-12 17:30:40,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:30:40,296 INFO L225 Difference]: With dead ends: 668 [2024-11-12 17:30:40,296 INFO L226 Difference]: Without dead ends: 417 [2024-11-12 17:30:40,297 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=178, Invalid=524, Unknown=0, NotChecked=0, Total=702 [2024-11-12 17:30:40,297 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 94 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-12 17:30:40,297 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 405 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-12 17:30:40,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-11-12 17:30:40,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 411. [2024-11-12 17:30:40,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 342 states have (on average 1.3011695906432748) internal successors, (445), 354 states have internal predecessors, (445), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-12 17:30:40,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 553 transitions. [2024-11-12 17:30:40,334 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 553 transitions. Word has length 108 [2024-11-12 17:30:40,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:30:40,334 INFO L471 AbstractCegarLoop]: Abstraction has 411 states and 553 transitions. [2024-11-12 17:30:40,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.333333333333333) internal successors, (52), 13 states have internal predecessors, (52), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-12 17:30:40,334 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 553 transitions. [2024-11-12 17:30:40,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-12 17:30:40,335 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:30:40,335 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 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] [2024-11-12 17:30:40,347 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-12 17:30:40,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:30:40,539 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-12 17:30:40,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:30:40,539 INFO L85 PathProgramCache]: Analyzing trace with hash 182462010, now seen corresponding path program 1 times [2024-11-12 17:30:40,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:30:40,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141334583] [2024-11-12 17:30:40,540 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:30:40,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:30:40,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:40,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:30:40,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:40,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-12 17:30:40,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:40,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-12 17:30:40,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:40,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-12 17:30:40,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:40,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-12 17:30:40,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:40,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-12 17:30:40,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:40,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-12 17:30:40,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:40,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-12 17:30:40,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:40,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-12 17:30:40,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:40,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-12 17:30:40,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:40,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-12 17:30:40,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:40,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-12 17:30:40,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:40,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-12 17:30:40,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:40,617 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2024-11-12 17:30:40,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:30:40,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141334583] [2024-11-12 17:30:40,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141334583] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:30:40,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 17:30:40,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 17:30:40,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759393629] [2024-11-12 17:30:40,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:30:40,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 17:30:40,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:30:40,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 17:30:40,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 17:30:40,619 INFO L87 Difference]: Start difference. First operand 411 states and 553 transitions. Second operand has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-12 17:30:41,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:30:41,091 INFO L93 Difference]: Finished difference Result 411 states and 553 transitions. [2024-11-12 17:30:41,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 17:30:41,091 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 109 [2024-11-12 17:30:41,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:30:41,092 INFO L225 Difference]: With dead ends: 411 [2024-11-12 17:30:41,093 INFO L226 Difference]: Without dead ends: 410 [2024-11-12 17:30:41,093 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-12 17:30:41,093 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 43 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-12 17:30:41,093 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 146 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-12 17:30:41,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2024-11-12 17:30:41,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 410. [2024-11-12 17:30:41,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 342 states have (on average 1.2982456140350878) internal successors, (444), 353 states have internal predecessors, (444), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-12 17:30:41,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 552 transitions. [2024-11-12 17:30:41,128 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 552 transitions. Word has length 109 [2024-11-12 17:30:41,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:30:41,128 INFO L471 AbstractCegarLoop]: Abstraction has 410 states and 552 transitions. [2024-11-12 17:30:41,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-12 17:30:41,129 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 552 transitions. [2024-11-12 17:30:41,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-12 17:30:41,130 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:30:41,130 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:30:41,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-12 17:30:41,131 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-12 17:30:41,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:30:41,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1739425004, now seen corresponding path program 1 times [2024-11-12 17:30:41,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:30:41,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683925877] [2024-11-12 17:30:41,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:30:41,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:30:41,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:41,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:30:41,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:41,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-12 17:30:41,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:41,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-12 17:30:41,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:41,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-12 17:30:41,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:41,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-12 17:30:41,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:41,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-12 17:30:41,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:41,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-12 17:30:41,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:41,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-12 17:30:41,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:41,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-12 17:30:41,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:41,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-12 17:30:41,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:41,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 17:30:41,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:41,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-12 17:30:41,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:41,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 17:30:41,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:41,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-12 17:30:41,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:41,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 17:30:41,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:41,218 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-11-12 17:30:41,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:30:41,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683925877] [2024-11-12 17:30:41,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683925877] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:30:41,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [211407276] [2024-11-12 17:30:41,219 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:30:41,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:30:41,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:30:41,221 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) [2024-11-12 17:30:41,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-12 17:30:41,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:41,263 INFO L256 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-12 17:30:41,264 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:30:41,305 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-11-12 17:30:41,305 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:30:41,387 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-11-12 17:30:41,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [211407276] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 17:30:41,388 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 17:30:41,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-12 17:30:41,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710029804] [2024-11-12 17:30:41,388 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 17:30:41,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-12 17:30:41,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:30:41,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-12 17:30:41,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-11-12 17:30:41,389 INFO L87 Difference]: Start difference. First operand 410 states and 552 transitions. Second operand has 11 states, 10 states have (on average 8.4) internal successors, (84), 11 states have internal predecessors, (84), 10 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) [2024-11-12 17:30:41,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:30:41,618 INFO L93 Difference]: Finished difference Result 727 states and 962 transitions. [2024-11-12 17:30:41,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-12 17:30:41,618 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.4) internal successors, (84), 11 states have internal predecessors, (84), 10 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) Word has length 111 [2024-11-12 17:30:41,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:30:41,620 INFO L225 Difference]: With dead ends: 727 [2024-11-12 17:30:41,620 INFO L226 Difference]: Without dead ends: 725 [2024-11-12 17:30:41,621 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-11-12 17:30:41,621 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 257 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 17:30:41,621 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 325 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 17:30:41,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2024-11-12 17:30:41,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 484. [2024-11-12 17:30:41,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 402 states have (on average 1.271144278606965) internal successors, (511), 413 states have internal predecessors, (511), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-12 17:30:41,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 647 transitions. [2024-11-12 17:30:41,666 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 647 transitions. Word has length 111 [2024-11-12 17:30:41,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:30:41,667 INFO L471 AbstractCegarLoop]: Abstraction has 484 states and 647 transitions. [2024-11-12 17:30:41,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.4) internal successors, (84), 11 states have internal predecessors, (84), 10 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) [2024-11-12 17:30:41,667 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 647 transitions. [2024-11-12 17:30:41,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-12 17:30:41,668 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:30:41,668 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 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] [2024-11-12 17:30:41,680 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-12 17:30:41,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-12 17:30:41,872 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-12 17:30:41,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:30:41,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1361355143, now seen corresponding path program 1 times [2024-11-12 17:30:41,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:30:41,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401758757] [2024-11-12 17:30:41,872 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:30:41,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:30:41,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-12 17:30:41,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1605894218] [2024-11-12 17:30:41,893 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:30:41,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:30:41,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:30:41,898 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 17:30:41,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-12 17:30:41,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:41,946 INFO L256 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-12 17:30:41,948 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:30:42,319 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 7 proven. 16 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2024-11-12 17:30:42,320 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:30:44,015 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-11-12 17:30:44,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:30:44,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401758757] [2024-11-12 17:30:44,015 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-12 17:30:44,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1605894218] [2024-11-12 17:30:44,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1605894218] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 17:30:44,015 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-12 17:30:44,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 19 [2024-11-12 17:30:44,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257707732] [2024-11-12 17:30:44,015 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-12 17:30:44,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-12 17:30:44,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:30:44,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-12 17:30:44,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=278, Unknown=0, NotChecked=0, Total=380 [2024-11-12 17:30:44,017 INFO L87 Difference]: Start difference. First operand 484 states and 647 transitions. Second operand has 20 states, 19 states have (on average 5.105263157894737) internal successors, (97), 20 states have internal predecessors, (97), 10 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) [2024-11-12 17:30:46,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:30:46,454 INFO L93 Difference]: Finished difference Result 529 states and 703 transitions. [2024-11-12 17:30:46,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-12 17:30:46,455 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 5.105263157894737) internal successors, (97), 20 states have internal predecessors, (97), 10 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) Word has length 110 [2024-11-12 17:30:46,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:30:46,457 INFO L225 Difference]: With dead ends: 529 [2024-11-12 17:30:46,457 INFO L226 Difference]: Without dead ends: 522 [2024-11-12 17:30:46,457 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 199 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=269, Invalid=787, Unknown=0, NotChecked=0, Total=1056 [2024-11-12 17:30:46,457 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 117 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-12 17:30:46,458 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 326 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-12 17:30:46,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2024-11-12 17:30:46,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 481. [2024-11-12 17:30:46,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 399 states have (on average 1.2606516290726817) internal successors, (503), 410 states have internal predecessors, (503), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-12 17:30:46,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 639 transitions. [2024-11-12 17:30:46,512 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 639 transitions. Word has length 110 [2024-11-12 17:30:46,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:30:46,512 INFO L471 AbstractCegarLoop]: Abstraction has 481 states and 639 transitions. [2024-11-12 17:30:46,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 5.105263157894737) internal successors, (97), 20 states have internal predecessors, (97), 10 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) [2024-11-12 17:30:46,512 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 639 transitions. [2024-11-12 17:30:46,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-12 17:30:46,514 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:30:46,514 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-12 17:30:46,528 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-12 17:30:46,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-12 17:30:46,719 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-12 17:30:46,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:30:46,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1971728133, now seen corresponding path program 2 times [2024-11-12 17:30:46,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:30:46,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258046100] [2024-11-12 17:30:46,720 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:30:46,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:30:46,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-12 17:30:46,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1204042653] [2024-11-12 17:30:46,737 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-12 17:30:46,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:30:46,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:30:46,739 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 17:30:46,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-12 17:30:46,786 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-12 17:30:46,786 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 17:30:46,787 INFO L256 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-12 17:30:46,788 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:30:46,889 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 25 proven. 2 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2024-11-12 17:30:46,889 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:30:47,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:30:47,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258046100] [2024-11-12 17:30:47,375 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-12 17:30:47,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1204042653] [2024-11-12 17:30:47,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1204042653] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:30:47,375 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-12 17:30:47,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-12 17:30:47,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105013344] [2024-11-12 17:30:47,375 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-12 17:30:47,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 17:30:47,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:30:47,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 17:30:47,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-11-12 17:30:47,376 INFO L87 Difference]: Start difference. First operand 481 states and 639 transitions. Second operand has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-12 17:30:47,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:30:47,576 INFO L93 Difference]: Finished difference Result 544 states and 730 transitions. [2024-11-12 17:30:47,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-12 17:30:47,576 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 113 [2024-11-12 17:30:47,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:30:47,578 INFO L225 Difference]: With dead ends: 544 [2024-11-12 17:30:47,578 INFO L226 Difference]: Without dead ends: 542 [2024-11-12 17:30:47,578 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2024-11-12 17:30:47,578 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 74 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 17:30:47,579 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 206 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 17:30:47,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2024-11-12 17:30:47,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 479. [2024-11-12 17:30:47,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 399 states have (on average 1.1979949874686717) internal successors, (478), 408 states have internal predecessors, (478), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-12 17:30:47,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 614 transitions. [2024-11-12 17:30:47,627 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 614 transitions. Word has length 113 [2024-11-12 17:30:47,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:30:47,628 INFO L471 AbstractCegarLoop]: Abstraction has 479 states and 614 transitions. [2024-11-12 17:30:47,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-12 17:30:47,628 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 614 transitions. [2024-11-12 17:30:47,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-12 17:30:47,628 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:30:47,628 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:30:47,641 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-12 17:30:47,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-12 17:30:47,829 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-12 17:30:47,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:30:47,829 INFO L85 PathProgramCache]: Analyzing trace with hash 788298852, now seen corresponding path program 1 times [2024-11-12 17:30:47,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:30:47,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659043342] [2024-11-12 17:30:47,829 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:30:47,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:30:47,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:47,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:30:47,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:47,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-12 17:30:47,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:47,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-12 17:30:47,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:47,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-12 17:30:47,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:47,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-12 17:30:47,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:47,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-12 17:30:47,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:47,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-12 17:30:47,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:47,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-12 17:30:47,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:47,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-12 17:30:47,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:47,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-12 17:30:47,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:47,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-12 17:30:47,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:47,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-12 17:30:47,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:47,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-12 17:30:48,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:48,001 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2024-11-12 17:30:48,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:30:48,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659043342] [2024-11-12 17:30:48,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659043342] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:30:48,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1742948745] [2024-11-12 17:30:48,002 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:30:48,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:30:48,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:30:48,003 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 17:30:48,005 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-12 17:30:48,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:30:48,046 INFO L256 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-12 17:30:48,047 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:30:48,103 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 7 proven. 17 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-11-12 17:30:48,103 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:30:48,200 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 7 proven. 17 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-11-12 17:30:48,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1742948745] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 17:30:48,201 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 17:30:48,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 12 [2024-11-12 17:30:48,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738039917] [2024-11-12 17:30:48,201 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 17:30:48,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-12 17:30:48,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:30:48,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-12 17:30:48,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-12 17:30:48,202 INFO L87 Difference]: Start difference. First operand 479 states and 614 transitions. Second operand has 12 states, 12 states have (on average 9.416666666666666) internal successors, (113), 12 states have internal predecessors, (113), 7 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) [2024-11-12 17:30:48,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:30:48,855 INFO L93 Difference]: Finished difference Result 843 states and 1104 transitions. [2024-11-12 17:30:48,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-12 17:30:48,856 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.416666666666666) internal successors, (113), 12 states have internal predecessors, (113), 7 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) Word has length 113 [2024-11-12 17:30:48,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:30:48,858 INFO L225 Difference]: With dead ends: 843 [2024-11-12 17:30:48,858 INFO L226 Difference]: Without dead ends: 708 [2024-11-12 17:30:48,858 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=409, Unknown=0, NotChecked=0, Total=506 [2024-11-12 17:30:48,859 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 173 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-12 17:30:48,859 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 497 Invalid, 697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 668 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-12 17:30:48,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-12 17:30:48,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 474. [2024-11-12 17:30:48,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 394 states have (on average 1.2258883248730965) internal successors, (483), 403 states have internal predecessors, (483), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-12 17:30:48,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 619 transitions. [2024-11-12 17:30:48,908 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 619 transitions. Word has length 113 [2024-11-12 17:30:48,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:30:48,908 INFO L471 AbstractCegarLoop]: Abstraction has 474 states and 619 transitions. [2024-11-12 17:30:48,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.416666666666666) internal successors, (113), 12 states have internal predecessors, (113), 7 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) [2024-11-12 17:30:48,908 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 619 transitions. [2024-11-12 17:30:48,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-12 17:30:48,908 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:30:48,908 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:30:48,924 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-12 17:30:49,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:30:49,109 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-12 17:30:49,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:30:49,109 INFO L85 PathProgramCache]: Analyzing trace with hash -994029898, now seen corresponding path program 2 times [2024-11-12 17:30:49,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:30:49,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571727161] [2024-11-12 17:30:49,110 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:30:49,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:30:49,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-12 17:30:49,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [110641630] [2024-11-12 17:30:49,125 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-12 17:30:49,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:30:49,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:30:49,126 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 17:30:49,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-12 17:30:49,199 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-12 17:30:49,199 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 17:30:49,200 INFO L256 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-12 17:30:49,204 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:30:49,614 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 3 proven. 31 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2024-11-12 17:30:49,614 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:30:49,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:30:49,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571727161] [2024-11-12 17:30:49,801 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-12 17:30:49,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [110641630] [2024-11-12 17:30:49,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [110641630] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:30:49,802 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-12 17:30:49,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-12 17:30:49,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229944314] [2024-11-12 17:30:49,802 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-12 17:30:49,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-12 17:30:49,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:30:49,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-12 17:30:49,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2024-11-12 17:30:49,803 INFO L87 Difference]: Start difference. First operand 474 states and 619 transitions. Second operand has 14 states, 13 states have (on average 4.076923076923077) internal successors, (53), 13 states have internal predecessors, (53), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-12 17:30:50,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:30:50,177 INFO L93 Difference]: Finished difference Result 512 states and 668 transitions. [2024-11-12 17:30:50,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-12 17:30:50,177 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.076923076923077) internal successors, (53), 13 states have internal predecessors, (53), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 114 [2024-11-12 17:30:50,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:30:50,179 INFO L225 Difference]: With dead ends: 512 [2024-11-12 17:30:50,179 INFO L226 Difference]: Without dead ends: 511 [2024-11-12 17:30:50,179 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2024-11-12 17:30:50,179 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 88 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-12 17:30:50,180 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 269 Invalid, 665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-12 17:30:50,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2024-11-12 17:30:50,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 499. [2024-11-12 17:30:50,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 415 states have (on average 1.219277108433735) internal successors, (506), 424 states have internal predecessors, (506), 72 states have call successors, (72), 2 states have call predecessors, (72), 2 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-12 17:30:50,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 650 transitions. [2024-11-12 17:30:50,231 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 650 transitions. Word has length 114 [2024-11-12 17:30:50,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:30:50,231 INFO L471 AbstractCegarLoop]: Abstraction has 499 states and 650 transitions. [2024-11-12 17:30:50,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.076923076923077) internal successors, (53), 13 states have internal predecessors, (53), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-12 17:30:50,231 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 650 transitions. [2024-11-12 17:30:50,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-12 17:30:50,232 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:30:50,232 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:30:50,244 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-12 17:30:50,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-12 17:30:50,436 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-12 17:30:50,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:30:50,436 INFO L85 PathProgramCache]: Analyzing trace with hash 33416471, now seen corresponding path program 3 times [2024-11-12 17:30:50,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:30:50,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078103041] [2024-11-12 17:30:50,436 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:30:50,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:30:50,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-12 17:30:50,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1172272678] [2024-11-12 17:30:50,460 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-12 17:30:50,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:30:50,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:30:50,461 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 17:30:50,463 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-12 17:30:50,500 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-12 17:30:50,501 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 17:30:50,501 INFO L256 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-12 17:30:50,505 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:31:22,965 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 64 proven. 3 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2024-11-12 17:31:22,965 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:31:25,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:31:25,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078103041] [2024-11-12 17:31:25,380 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-12 17:31:25,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1172272678] [2024-11-12 17:31:25,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1172272678] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:31:25,380 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-12 17:31:25,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-12 17:31:25,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744281940] [2024-11-12 17:31:25,380 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-12 17:31:25,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-12 17:31:25,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:31:25,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-12 17:31:25,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2024-11-12 17:31:25,381 INFO L87 Difference]: Start difference. First operand 499 states and 650 transitions. Second operand has 12 states, 11 states have (on average 4.363636363636363) internal successors, (48), 12 states have internal predecessors, (48), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-12 17:31:29,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-12 17:31:33,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-12 17:31:37,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-12 17:31:41,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-12 17:31:45,597 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-12 17:31:49,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []