./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound10.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 6d5fb336862157190b75f459fa5ac35efb8ca70e207f909b082fde37cf98e7f7 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 13:40:46,115 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 13:40:46,182 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-13 13:40:46,189 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 13:40:46,190 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 13:40:46,217 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 13:40:46,218 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 13:40:46,218 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 13:40:46,219 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 13:40:46,219 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 13:40:46,219 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 13:40:46,220 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 13:40:46,220 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 13:40:46,221 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 13:40:46,221 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 13:40:46,221 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 13:40:46,222 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 13:40:46,222 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 13:40:46,223 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 13:40:46,223 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 13:40:46,223 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 13:40:46,227 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 13:40:46,227 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 13:40:46,228 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 13:40:46,228 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 13:40:46,228 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-13 13:40:46,228 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 13:40:46,229 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 13:40:46,229 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 13:40:46,229 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 13:40:46,229 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 13:40:46,230 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 13:40:46,230 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 13:40:46,234 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 13:40:46,234 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 13:40:46,235 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 13:40:46,235 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 13:40:46,235 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 13:40:46,235 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 13:40:46,236 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 13:40:46,236 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 13:40:46,236 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 13:40:46,237 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 13:40:46,237 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 13:40:46,237 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d5fb336862157190b75f459fa5ac35efb8ca70e207f909b082fde37cf98e7f7 [2024-10-13 13:40:46,481 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 13:40:46,507 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 13:40:46,510 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 13:40:46,512 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 13:40:46,512 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 13:40:46,513 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound10.c [2024-10-13 13:40:47,924 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 13:40:48,126 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 13:40:48,127 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound10.c [2024-10-13 13:40:48,133 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b62965af/22bd1e1933764a2eba7f520e83383662/FLAGffc72f8bc [2024-10-13 13:40:48,522 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b62965af/22bd1e1933764a2eba7f520e83383662 [2024-10-13 13:40:48,525 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 13:40:48,526 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 13:40:48,527 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 13:40:48,527 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 13:40:48,532 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 13:40:48,532 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:40:48" (1/1) ... [2024-10-13 13:40:48,533 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56bced9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:40:48, skipping insertion in model container [2024-10-13 13:40:48,533 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:40:48" (1/1) ... [2024-10-13 13:40:48,551 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 13:40:48,765 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 13:40:48,780 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 13:40:48,804 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 13:40:48,826 INFO L204 MainTranslator]: Completed translation [2024-10-13 13:40:48,827 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:40:48 WrapperNode [2024-10-13 13:40:48,827 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 13:40:48,828 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 13:40:48,828 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 13:40:48,829 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 13:40:48,836 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:40:48" (1/1) ... [2024-10-13 13:40:48,847 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:40:48" (1/1) ... [2024-10-13 13:40:48,877 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 86 [2024-10-13 13:40:48,878 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 13:40:48,878 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 13:40:48,879 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 13:40:48,879 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 13:40:48,889 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:40:48" (1/1) ... [2024-10-13 13:40:48,889 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:40:48" (1/1) ... [2024-10-13 13:40:48,891 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:40:48" (1/1) ... [2024-10-13 13:40:48,905 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-13 13:40:48,906 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:40:48" (1/1) ... [2024-10-13 13:40:48,909 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:40:48" (1/1) ... [2024-10-13 13:40:48,913 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:40:48" (1/1) ... [2024-10-13 13:40:48,917 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:40:48" (1/1) ... [2024-10-13 13:40:48,922 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:40:48" (1/1) ... [2024-10-13 13:40:48,927 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:40:48" (1/1) ... [2024-10-13 13:40:48,929 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 13:40:48,931 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 13:40:48,934 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 13:40:48,934 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 13:40:48,935 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:40:48" (1/1) ... [2024-10-13 13:40:48,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 13:40:48,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:40:48,973 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-13 13:40:48,977 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-13 13:40:49,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 13:40:49,028 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-13 13:40:49,028 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-13 13:40:49,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 13:40:49,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 13:40:49,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 13:40:49,029 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-13 13:40:49,029 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-13 13:40:49,092 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 13:40:49,096 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 13:40:49,409 INFO L? ?]: Removed 50 outVars from TransFormulas that were not future-live. [2024-10-13 13:40:49,409 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 13:40:49,436 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 13:40:49,437 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-13 13:40:49,437 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:40:49 BoogieIcfgContainer [2024-10-13 13:40:49,437 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 13:40:49,439 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 13:40:49,440 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 13:40:49,443 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 13:40:49,443 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 01:40:48" (1/3) ... [2024-10-13 13:40:49,444 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@566fb230 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:40:49, skipping insertion in model container [2024-10-13 13:40:49,444 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:40:48" (2/3) ... [2024-10-13 13:40:49,445 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@566fb230 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:40:49, skipping insertion in model container [2024-10-13 13:40:49,445 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:40:49" (3/3) ... [2024-10-13 13:40:49,446 INFO L112 eAbstractionObserver]: Analyzing ICFG hard-ll_valuebound10.c [2024-10-13 13:40:49,465 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 13:40:49,465 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2024-10-13 13:40:49,535 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 13:40:49,541 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;@17eb0a95, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 13:40:49,541 INFO L334 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2024-10-13 13:40:49,545 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 39 states have (on average 1.8461538461538463) internal successors, (72), 63 states have internal predecessors, (72), 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) [2024-10-13 13:40:49,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-10-13 13:40:49,550 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:40:49,551 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:40:49,552 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)] === [2024-10-13 13:40:49,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:40:49,557 INFO L85 PathProgramCache]: Analyzing trace with hash -86371443, now seen corresponding path program 1 times [2024-10-13 13:40:49,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:40:49,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786612509] [2024-10-13 13:40:49,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:40:49,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:40:49,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:49,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:40:49,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:49,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 13:40:49,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:49,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 13:40:49,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:49,727 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-13 13:40:49,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:40:49,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786612509] [2024-10-13 13:40:49,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786612509] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:40:49,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:40:49,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 13:40:49,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405498228] [2024-10-13 13:40:49,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:40:49,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-13 13:40:49,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:40:49,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-13 13:40:49,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 13:40:49,757 INFO L87 Difference]: Start difference. First operand has 76 states, 39 states have (on average 1.8461538461538463) internal successors, (72), 63 states have internal predecessors, (72), 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 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-13 13:40:49,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:40:49,784 INFO L93 Difference]: Finished difference Result 150 states and 191 transitions. [2024-10-13 13:40:49,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-13 13:40:49,786 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 21 [2024-10-13 13:40:49,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:40:49,793 INFO L225 Difference]: With dead ends: 150 [2024-10-13 13:40:49,793 INFO L226 Difference]: Without dead ends: 72 [2024-10-13 13:40:49,797 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 13:40:49,803 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 13:40:49,804 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 84 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 13:40:49,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-10-13 13:40:49,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2024-10-13 13:40:49,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 38 states have (on average 1.6842105263157894) internal successors, (64), 61 states have internal predecessors, (64), 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) [2024-10-13 13:40:49,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 80 transitions. [2024-10-13 13:40:49,842 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 80 transitions. Word has length 21 [2024-10-13 13:40:49,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:40:49,842 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 80 transitions. [2024-10-13 13:40:49,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-13 13:40:49,843 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 80 transitions. [2024-10-13 13:40:49,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-10-13 13:40:49,844 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:40:49,844 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:40:49,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 13:40:49,845 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-13 13:40:49,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:40:49,846 INFO L85 PathProgramCache]: Analyzing trace with hash 140634780, now seen corresponding path program 1 times [2024-10-13 13:40:49,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:40:49,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467989961] [2024-10-13 13:40:49,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:40:49,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:40:49,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:40:49,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1137988320] [2024-10-13 13:40:49,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:40:49,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:40:49,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:40:49,902 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:40:49,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-13 13:40:49,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:49,973 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 13:40:49,980 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:40:50,040 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-13 13:40:50,042 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 13:40:50,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:40:50,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467989961] [2024-10-13 13:40:50,043 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:40:50,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1137988320] [2024-10-13 13:40:50,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1137988320] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:40:50,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:40:50,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 13:40:50,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933481693] [2024-10-13 13:40:50,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:40:50,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 13:40:50,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:40:50,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 13:40:50,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 13:40:50,049 INFO L87 Difference]: Start difference. First operand 72 states and 80 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2024-10-13 13:40:50,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:40:50,165 INFO L93 Difference]: Finished difference Result 148 states and 167 transitions. [2024-10-13 13:40:50,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 13:40:50,166 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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 30 [2024-10-13 13:40:50,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:40:50,167 INFO L225 Difference]: With dead ends: 148 [2024-10-13 13:40:50,167 INFO L226 Difference]: Without dead ends: 99 [2024-10-13 13:40:50,168 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 13:40:50,169 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 20 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 13:40:50,170 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 128 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 13:40:50,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-10-13 13:40:50,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 93. [2024-10-13 13:40:50,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 54 states have (on average 1.6111111111111112) internal successors, (87), 77 states have internal predecessors, (87), 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) [2024-10-13 13:40:50,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 113 transitions. [2024-10-13 13:40:50,186 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 113 transitions. Word has length 30 [2024-10-13 13:40:50,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:40:50,188 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 113 transitions. [2024-10-13 13:40:50,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2024-10-13 13:40:50,188 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 113 transitions. [2024-10-13 13:40:50,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-10-13 13:40:50,189 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:40:50,189 INFO L215 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] [2024-10-13 13:40:50,208 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-13 13:40:50,393 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 [2024-10-13 13:40:50,394 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)] === [2024-10-13 13:40:50,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:40:50,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1677847877, now seen corresponding path program 1 times [2024-10-13 13:40:50,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:40:50,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963008984] [2024-10-13 13:40:50,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:40:50,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:40:50,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:50,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:40:50,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:50,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 13:40:50,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:50,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 13:40:50,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:50,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-13 13:40:50,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:50,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 13:40:50,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:50,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-13 13:40:50,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:50,553 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-13 13:40:50,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:40:50,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963008984] [2024-10-13 13:40:50,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963008984] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:40:50,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:40:50,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 13:40:50,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657374945] [2024-10-13 13:40:50,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:40:50,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 13:40:50,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:40:50,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 13:40:50,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 13:40:50,560 INFO L87 Difference]: Start difference. First operand 93 states and 113 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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) [2024-10-13 13:40:50,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:40:50,659 INFO L93 Difference]: Finished difference Result 93 states and 113 transitions. [2024-10-13 13:40:50,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 13:40:50,660 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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 38 [2024-10-13 13:40:50,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:40:50,661 INFO L225 Difference]: With dead ends: 93 [2024-10-13 13:40:50,661 INFO L226 Difference]: Without dead ends: 91 [2024-10-13 13:40:50,661 INFO L431 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 [2024-10-13 13:40:50,662 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 39 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 13:40:50,663 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 74 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 13:40:50,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-10-13 13:40:50,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2024-10-13 13:40:50,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 54 states have (on average 1.5555555555555556) internal successors, (84), 75 states have internal predecessors, (84), 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) [2024-10-13 13:40:50,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 110 transitions. [2024-10-13 13:40:50,674 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 110 transitions. Word has length 38 [2024-10-13 13:40:50,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:40:50,675 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 110 transitions. [2024-10-13 13:40:50,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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) [2024-10-13 13:40:50,675 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 110 transitions. [2024-10-13 13:40:50,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-10-13 13:40:50,676 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:40:50,677 INFO L215 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] [2024-10-13 13:40:50,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 13:40:50,677 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)] === [2024-10-13 13:40:50,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:40:50,678 INFO L85 PathProgramCache]: Analyzing trace with hash 473675319, now seen corresponding path program 1 times [2024-10-13 13:40:50,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:40:50,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210462882] [2024-10-13 13:40:50,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:40:50,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:40:50,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:40:50,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1167007103] [2024-10-13 13:40:50,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:40:50,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:40:50,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:40:50,724 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:40:50,729 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-13 13:40:50,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:50,782 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 13:40:50,784 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:40:50,808 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-13 13:40:50,809 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 13:40:50,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:40:50,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210462882] [2024-10-13 13:40:50,809 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:40:50,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1167007103] [2024-10-13 13:40:50,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1167007103] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:40:50,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:40:50,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 13:40:50,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925515911] [2024-10-13 13:40:50,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:40:50,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 13:40:50,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:40:50,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 13:40:50,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 13:40:50,811 INFO L87 Difference]: Start difference. First operand 91 states and 110 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) [2024-10-13 13:40:50,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:40:50,873 INFO L93 Difference]: Finished difference Result 125 states and 153 transitions. [2024-10-13 13:40:50,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 13:40:50,873 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 [2024-10-13 13:40:50,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:40:50,875 INFO L225 Difference]: With dead ends: 125 [2024-10-13 13:40:50,875 INFO L226 Difference]: Without dead ends: 121 [2024-10-13 13:40:50,875 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 13:40:50,876 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 37 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 13:40:50,876 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 102 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 13:40:50,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-10-13 13:40:50,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 108. [2024-10-13 13:40:50,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 69 states have (on average 1.536231884057971) internal successors, (106), 90 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) [2024-10-13 13:40:50,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 136 transitions. [2024-10-13 13:40:50,900 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 136 transitions. Word has length 39 [2024-10-13 13:40:50,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:40:50,902 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 136 transitions. [2024-10-13 13:40:50,902 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) [2024-10-13 13:40:50,902 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 136 transitions. [2024-10-13 13:40:50,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-10-13 13:40:50,904 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:40:50,904 INFO L215 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] [2024-10-13 13:40:50,921 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-13 13:40:51,104 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 [2024-10-13 13:40:51,105 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)] === [2024-10-13 13:40:51,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:40:51,106 INFO L85 PathProgramCache]: Analyzing trace with hash 473676697, now seen corresponding path program 1 times [2024-10-13 13:40:51,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:40:51,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772778245] [2024-10-13 13:40:51,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:40:51,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:40:51,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:51,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:40:51,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:51,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 13:40:51,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:51,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 13:40:51,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:51,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-13 13:40:51,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:51,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 13:40:51,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:51,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-13 13:40:51,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:51,222 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-13 13:40:51,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:40:51,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772778245] [2024-10-13 13:40:51,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772778245] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:40:51,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:40:51,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 13:40:51,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685751568] [2024-10-13 13:40:51,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:40:51,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 13:40:51,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:40:51,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 13:40:51,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 13:40:51,225 INFO L87 Difference]: Start difference. First operand 108 states and 136 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) [2024-10-13 13:40:51,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:40:51,273 INFO L93 Difference]: Finished difference Result 115 states and 141 transitions. [2024-10-13 13:40:51,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 13:40:51,273 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 [2024-10-13 13:40:51,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:40:51,274 INFO L225 Difference]: With dead ends: 115 [2024-10-13 13:40:51,274 INFO L226 Difference]: Without dead ends: 114 [2024-10-13 13:40:51,275 INFO L431 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 [2024-10-13 13:40:51,275 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 14 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 13:40:51,276 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 123 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 13:40:51,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-10-13 13:40:51,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 108. [2024-10-13 13:40:51,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 69 states have (on average 1.5217391304347827) internal successors, (105), 90 states have internal predecessors, (105), 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) [2024-10-13 13:40:51,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 135 transitions. [2024-10-13 13:40:51,298 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 135 transitions. Word has length 39 [2024-10-13 13:40:51,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:40:51,298 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 135 transitions. [2024-10-13 13:40:51,302 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) [2024-10-13 13:40:51,302 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 135 transitions. [2024-10-13 13:40:51,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-10-13 13:40:51,303 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:40:51,303 INFO L215 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] [2024-10-13 13:40:51,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-13 13:40:51,304 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)] === [2024-10-13 13:40:51,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:40:51,304 INFO L85 PathProgramCache]: Analyzing trace with hash -64549223, now seen corresponding path program 1 times [2024-10-13 13:40:51,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:40:51,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994018600] [2024-10-13 13:40:51,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:40:51,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:40:51,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:51,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:40:51,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:51,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 13:40:51,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:51,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 13:40:51,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:51,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-13 13:40:51,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:51,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 13:40:51,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:51,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-13 13:40:51,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:51,526 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-13 13:40:51,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:40:51,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994018600] [2024-10-13 13:40:51,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994018600] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:40:51,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:40:51,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 13:40:51,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672045759] [2024-10-13 13:40:51,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:40:51,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 13:40:51,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:40:51,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 13:40:51,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 13:40:51,530 INFO L87 Difference]: Start difference. First operand 108 states and 135 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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) [2024-10-13 13:40:51,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:40:51,777 INFO L93 Difference]: Finished difference Result 123 states and 149 transitions. [2024-10-13 13:40:51,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 13:40:51,777 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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 41 [2024-10-13 13:40:51,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:40:51,778 INFO L225 Difference]: With dead ends: 123 [2024-10-13 13:40:51,778 INFO L226 Difference]: Without dead ends: 122 [2024-10-13 13:40:51,779 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-13 13:40:51,779 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 85 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 13:40:51,780 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 104 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 13:40:51,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-10-13 13:40:51,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 112. [2024-10-13 13:40:51,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 73 states have (on average 1.4931506849315068) internal successors, (109), 94 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) [2024-10-13 13:40:51,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 139 transitions. [2024-10-13 13:40:51,811 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 139 transitions. Word has length 41 [2024-10-13 13:40:51,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:40:51,814 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 139 transitions. [2024-10-13 13:40:51,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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) [2024-10-13 13:40:51,815 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 139 transitions. [2024-10-13 13:40:51,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-10-13 13:40:51,816 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:40:51,816 INFO L215 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] [2024-10-13 13:40:51,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-13 13:40:51,816 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-13 13:40:51,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:40:51,817 INFO L85 PathProgramCache]: Analyzing trace with hash -2001025828, now seen corresponding path program 1 times [2024-10-13 13:40:51,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:40:51,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338942602] [2024-10-13 13:40:51,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:40:51,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:40:51,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:40:51,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [760722323] [2024-10-13 13:40:51,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:40:51,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:40:51,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:40:51,849 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:40:51,851 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-13 13:40:51,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:51,898 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 13:40:51,900 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:40:52,003 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-13 13:40:52,004 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 13:40:52,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:40:52,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338942602] [2024-10-13 13:40:52,004 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:40:52,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [760722323] [2024-10-13 13:40:52,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [760722323] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:40:52,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:40:52,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 13:40:52,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140615240] [2024-10-13 13:40:52,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:40:52,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 13:40:52,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:40:52,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 13:40:52,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 13:40:52,006 INFO L87 Difference]: Start difference. First operand 112 states and 139 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 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) [2024-10-13 13:40:52,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:40:52,119 INFO L93 Difference]: Finished difference Result 123 states and 146 transitions. [2024-10-13 13:40:52,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 13:40:52,120 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 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 [2024-10-13 13:40:52,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:40:52,121 INFO L225 Difference]: With dead ends: 123 [2024-10-13 13:40:52,121 INFO L226 Difference]: Without dead ends: 120 [2024-10-13 13:40:52,121 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 13:40:52,122 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 30 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 13:40:52,122 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 95 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 13:40:52,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-10-13 13:40:52,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 113. [2024-10-13 13:40:52,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 74 states have (on average 1.4594594594594594) internal successors, (108), 95 states have internal predecessors, (108), 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) [2024-10-13 13:40:52,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 138 transitions. [2024-10-13 13:40:52,145 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 138 transitions. Word has length 42 [2024-10-13 13:40:52,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:40:52,145 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 138 transitions. [2024-10-13 13:40:52,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2024-10-13 13:40:52,146 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 138 transitions. [2024-10-13 13:40:52,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-10-13 13:40:52,147 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:40:52,147 INFO L215 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] [2024-10-13 13:40:52,164 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-13 13:40:52,348 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 [2024-10-13 13:40:52,348 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)] === [2024-10-13 13:40:52,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:40:52,349 INFO L85 PathProgramCache]: Analyzing trace with hash -573724229, now seen corresponding path program 1 times [2024-10-13 13:40:52,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:40:52,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039223244] [2024-10-13 13:40:52,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:40:52,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:40:52,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:40:52,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [229780736] [2024-10-13 13:40:52,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:40:52,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:40:52,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:40:52,378 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:40:52,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-13 13:40:52,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:52,432 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-13 13:40:52,434 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:40:52,614 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-10-13 13:40:52,614 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:40:52,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:40:52,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039223244] [2024-10-13 13:40:52,798 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:40:52,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [229780736] [2024-10-13 13:40:52,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [229780736] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:40:52,800 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-13 13:40:52,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-10-13 13:40:52,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63846192] [2024-10-13 13:40:52,801 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-13 13:40:52,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 13:40:52,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:40:52,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 13:40:52,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-10-13 13:40:52,803 INFO L87 Difference]: Start difference. First operand 113 states and 138 transitions. Second operand has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-10-13 13:40:52,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:40:52,985 INFO L93 Difference]: Finished difference Result 127 states and 156 transitions. [2024-10-13 13:40:52,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 13:40:52,986 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 53 [2024-10-13 13:40:52,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:40:52,987 INFO L225 Difference]: With dead ends: 127 [2024-10-13 13:40:52,987 INFO L226 Difference]: Without dead ends: 119 [2024-10-13 13:40:52,988 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-10-13 13:40:52,988 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 48 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 13:40:52,988 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 245 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 13:40:52,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-10-13 13:40:53,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2024-10-13 13:40:53,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 82 states have (on average 1.353658536585366) internal successors, (111), 99 states have internal predecessors, (111), 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) [2024-10-13 13:40:53,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 145 transitions. [2024-10-13 13:40:53,022 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 145 transitions. Word has length 53 [2024-10-13 13:40:53,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:40:53,023 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 145 transitions. [2024-10-13 13:40:53,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-10-13 13:40:53,023 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 145 transitions. [2024-10-13 13:40:53,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-10-13 13:40:53,024 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:40:53,024 INFO L215 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] [2024-10-13 13:40:53,044 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-13 13:40:53,224 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 [2024-10-13 13:40:53,225 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)] === [2024-10-13 13:40:53,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:40:53,226 INFO L85 PathProgramCache]: Analyzing trace with hash -605581863, now seen corresponding path program 1 times [2024-10-13 13:40:53,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:40:53,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199450854] [2024-10-13 13:40:53,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:40:53,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:40:53,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:40:53,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1309231048] [2024-10-13 13:40:53,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:40:53,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:40:53,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:40:53,244 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:40:53,246 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-13 13:40:53,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:53,298 INFO L255 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-13 13:40:53,301 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:40:53,474 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-10-13 13:40:53,475 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:40:53,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:40:53,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199450854] [2024-10-13 13:40:53,613 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:40:53,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1309231048] [2024-10-13 13:40:53,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1309231048] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:40:53,613 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-13 13:40:53,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-10-13 13:40:53,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061198915] [2024-10-13 13:40:53,613 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-13 13:40:53,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 13:40:53,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:40:53,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 13:40:53,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-10-13 13:40:53,614 INFO L87 Difference]: Start difference. First operand 119 states and 145 transitions. Second operand has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-10-13 13:40:53,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:40:53,814 INFO L93 Difference]: Finished difference Result 191 states and 244 transitions. [2024-10-13 13:40:53,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 13:40:53,815 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 54 [2024-10-13 13:40:53,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:40:53,817 INFO L225 Difference]: With dead ends: 191 [2024-10-13 13:40:53,817 INFO L226 Difference]: Without dead ends: 187 [2024-10-13 13:40:53,818 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-10-13 13:40:53,819 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 103 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 13:40:53,819 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 191 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 13:40:53,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2024-10-13 13:40:53,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 178. [2024-10-13 13:40:53,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 132 states have (on average 1.356060606060606) internal successors, (179), 149 states have internal predecessors, (179), 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) [2024-10-13 13:40:53,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 231 transitions. [2024-10-13 13:40:53,839 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 231 transitions. Word has length 54 [2024-10-13 13:40:53,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:40:53,840 INFO L471 AbstractCegarLoop]: Abstraction has 178 states and 231 transitions. [2024-10-13 13:40:53,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-10-13 13:40:53,840 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 231 transitions. [2024-10-13 13:40:53,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-13 13:40:53,841 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:40:53,841 INFO L215 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] [2024-10-13 13:40:53,858 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-13 13:40:54,042 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 [2024-10-13 13:40:54,043 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)] === [2024-10-13 13:40:54,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:40:54,043 INFO L85 PathProgramCache]: Analyzing trace with hash -415985539, now seen corresponding path program 1 times [2024-10-13 13:40:54,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:40:54,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206569542] [2024-10-13 13:40:54,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:40:54,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:40:54,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:54,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:40:54,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:54,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 13:40:54,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:54,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 13:40:54,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:54,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-13 13:40:54,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:54,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 13:40:54,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:54,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-13 13:40:54,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:54,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-13 13:40:54,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:54,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-13 13:40:54,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:54,139 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-10-13 13:40:54,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:40:54,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206569542] [2024-10-13 13:40:54,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206569542] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:40:54,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:40:54,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 13:40:54,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000637813] [2024-10-13 13:40:54,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:40:54,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 13:40:54,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:40:54,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 13:40:54,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 13:40:54,143 INFO L87 Difference]: Start difference. First operand 178 states and 231 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 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) [2024-10-13 13:40:54,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:40:54,338 INFO L93 Difference]: Finished difference Result 187 states and 240 transitions. [2024-10-13 13:40:54,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 13:40:54,338 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 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 58 [2024-10-13 13:40:54,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:40:54,340 INFO L225 Difference]: With dead ends: 187 [2024-10-13 13:40:54,340 INFO L226 Difference]: Without dead ends: 172 [2024-10-13 13:40:54,341 INFO L431 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 [2024-10-13 13:40:54,341 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 39 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 13:40:54,342 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 134 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 13:40:54,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2024-10-13 13:40:54,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 145. [2024-10-13 13:40:54,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 105 states have (on average 1.4095238095238096) internal successors, (148), 122 states have internal predecessors, (148), 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) [2024-10-13 13:40:54,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 188 transitions. [2024-10-13 13:40:54,358 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 188 transitions. Word has length 58 [2024-10-13 13:40:54,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:40:54,358 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 188 transitions. [2024-10-13 13:40:54,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 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) [2024-10-13 13:40:54,359 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 188 transitions. [2024-10-13 13:40:54,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-13 13:40:54,361 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:40:54,361 INFO L215 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] [2024-10-13 13:40:54,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-13 13:40:54,361 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)] === [2024-10-13 13:40:54,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:40:54,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1887727782, now seen corresponding path program 1 times [2024-10-13 13:40:54,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:40:54,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136942413] [2024-10-13 13:40:54,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:40:54,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:40:54,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:54,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:40:54,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:54,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 13:40:54,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:54,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 13:40:54,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:54,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-13 13:40:54,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:54,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 13:40:54,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:54,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-13 13:40:54,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:54,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-13 13:40:54,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:54,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-13 13:40:54,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:54,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-13 13:40:54,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:54,474 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-10-13 13:40:54,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:40:54,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136942413] [2024-10-13 13:40:54,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136942413] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:40:54,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1569834364] [2024-10-13 13:40:54,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:40:54,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:40:54,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:40:54,477 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:40:54,479 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-13 13:40:54,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:54,528 INFO L255 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 13:40:54,530 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:40:54,563 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-10-13 13:40:54,563 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:40:54,638 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-10-13 13:40:54,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1569834364] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:40:54,638 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 13:40:54,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-10-13 13:40:54,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360414090] [2024-10-13 13:40:54,639 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 13:40:54,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 13:40:54,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:40:54,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 13:40:54,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 13:40:54,640 INFO L87 Difference]: Start difference. First operand 145 states and 188 transitions. Second operand has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 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) [2024-10-13 13:40:54,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:40:54,803 INFO L93 Difference]: Finished difference Result 255 states and 327 transitions. [2024-10-13 13:40:54,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 13:40:54,804 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 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 62 [2024-10-13 13:40:54,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:40:54,805 INFO L225 Difference]: With dead ends: 255 [2024-10-13 13:40:54,806 INFO L226 Difference]: Without dead ends: 253 [2024-10-13 13:40:54,806 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 13:40:54,806 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 129 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 13:40:54,806 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 207 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 13:40:54,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2024-10-13 13:40:54,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 203. [2024-10-13 13:40:54,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 153 states have (on average 1.4052287581699345) internal successors, (215), 170 states have internal predecessors, (215), 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) [2024-10-13 13:40:54,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 275 transitions. [2024-10-13 13:40:54,836 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 275 transitions. Word has length 62 [2024-10-13 13:40:54,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:40:54,836 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 275 transitions. [2024-10-13 13:40:54,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 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) [2024-10-13 13:40:54,837 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 275 transitions. [2024-10-13 13:40:54,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-13 13:40:54,838 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:40:54,838 INFO L215 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] [2024-10-13 13:40:54,855 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-13 13:40:55,039 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 [2024-10-13 13:40:55,040 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-13 13:40:55,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:40:55,041 INFO L85 PathProgramCache]: Analyzing trace with hash -341860360, now seen corresponding path program 2 times [2024-10-13 13:40:55,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:40:55,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39438162] [2024-10-13 13:40:55,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:40:55,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:40:55,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:40:55,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [288753983] [2024-10-13 13:40:55,056 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 13:40:55,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:40:55,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:40:55,058 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:40:55,060 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-13 13:40:55,114 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-13 13:40:55,114 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 13:40:55,115 INFO L255 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-13 13:40:55,118 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:40:55,401 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-10-13 13:40:55,402 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:40:55,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:40:55,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39438162] [2024-10-13 13:40:55,577 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:40:55,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [288753983] [2024-10-13 13:40:55,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [288753983] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:40:55,577 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-13 13:40:55,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-10-13 13:40:55,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039785795] [2024-10-13 13:40:55,577 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-13 13:40:55,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 13:40:55,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:40:55,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 13:40:55,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-10-13 13:40:55,579 INFO L87 Difference]: Start difference. First operand 203 states and 275 transitions. Second operand has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 10 states have internal predecessors, (31), 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) [2024-10-13 13:40:56,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:40:56,083 INFO L93 Difference]: Finished difference Result 273 states and 366 transitions. [2024-10-13 13:40:56,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-13 13:40:56,083 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 10 states have internal predecessors, (31), 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 77 [2024-10-13 13:40:56,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:40:56,085 INFO L225 Difference]: With dead ends: 273 [2024-10-13 13:40:56,085 INFO L226 Difference]: Without dead ends: 269 [2024-10-13 13:40:56,086 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2024-10-13 13:40:56,086 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 143 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 13:40:56,087 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 382 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 13:40:56,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2024-10-13 13:40:56,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 203. [2024-10-13 13:40:56,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 153 states have (on average 1.392156862745098) internal successors, (213), 170 states have internal predecessors, (213), 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) [2024-10-13 13:40:56,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 273 transitions. [2024-10-13 13:40:56,110 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 273 transitions. Word has length 77 [2024-10-13 13:40:56,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:40:56,110 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 273 transitions. [2024-10-13 13:40:56,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 10 states have internal predecessors, (31), 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) [2024-10-13 13:40:56,110 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 273 transitions. [2024-10-13 13:40:56,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-13 13:40:56,111 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:40:56,111 INFO L215 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] [2024-10-13 13:40:56,129 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-13 13:40:56,315 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 [2024-10-13 13:40:56,316 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)] === [2024-10-13 13:40:56,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:40:56,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1771595447, now seen corresponding path program 1 times [2024-10-13 13:40:56,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:40:56,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478653066] [2024-10-13 13:40:56,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:40:56,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:40:56,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:56,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:40:56,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:56,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 13:40:56,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:56,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 13:40:56,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:56,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-13 13:40:56,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:56,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 13:40:56,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:56,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-13 13:40:56,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:56,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-13 13:40:56,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:56,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-13 13:40:56,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:56,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-13 13:40:56,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:56,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-13 13:40:56,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:56,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 13:40:56,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:56,391 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2024-10-13 13:40:56,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:40:56,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478653066] [2024-10-13 13:40:56,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478653066] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:40:56,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:40:56,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 13:40:56,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190302785] [2024-10-13 13:40:56,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:40:56,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 13:40:56,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:40:56,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 13:40:56,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 13:40:56,393 INFO L87 Difference]: Start difference. First operand 203 states and 273 transitions. Second operand has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 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) [2024-10-13 13:40:56,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:40:56,452 INFO L93 Difference]: Finished difference Result 203 states and 273 transitions. [2024-10-13 13:40:56,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 13:40:56,452 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 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 84 [2024-10-13 13:40:56,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:40:56,455 INFO L225 Difference]: With dead ends: 203 [2024-10-13 13:40:56,455 INFO L226 Difference]: Without dead ends: 202 [2024-10-13 13:40:56,455 INFO L431 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 [2024-10-13 13:40:56,456 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 2 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 13:40:56,457 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 113 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 13:40:56,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2024-10-13 13:40:56,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2024-10-13 13:40:56,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 153 states have (on average 1.3725490196078431) internal successors, (210), 169 states have internal predecessors, (210), 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) [2024-10-13 13:40:56,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 270 transitions. [2024-10-13 13:40:56,480 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 270 transitions. Word has length 84 [2024-10-13 13:40:56,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:40:56,481 INFO L471 AbstractCegarLoop]: Abstraction has 202 states and 270 transitions. [2024-10-13 13:40:56,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 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) [2024-10-13 13:40:56,481 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 270 transitions. [2024-10-13 13:40:56,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-13 13:40:56,481 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:40:56,482 INFO L215 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] [2024-10-13 13:40:56,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-13 13:40:56,482 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)] === [2024-10-13 13:40:56,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:40:56,482 INFO L85 PathProgramCache]: Analyzing trace with hash 915116102, now seen corresponding path program 1 times [2024-10-13 13:40:56,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:40:56,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929329807] [2024-10-13 13:40:56,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:40:56,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:40:56,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:56,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:40:56,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:56,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 13:40:56,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:56,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 13:40:56,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:56,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-13 13:40:56,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:56,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 13:40:56,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:56,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-13 13:40:56,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:56,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-13 13:40:56,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:56,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-13 13:40:56,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:56,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-13 13:40:56,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:56,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-13 13:40:56,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:56,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 13:40:56,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:56,722 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2024-10-13 13:40:56,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:40:56,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929329807] [2024-10-13 13:40:56,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929329807] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:40:56,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:40:56,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 13:40:56,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121974983] [2024-10-13 13:40:56,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:40:56,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 13:40:56,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:40:56,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 13:40:56,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-13 13:40:56,724 INFO L87 Difference]: Start difference. First operand 202 states and 270 transitions. Second operand has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 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) [2024-10-13 13:40:57,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:40:57,009 INFO L93 Difference]: Finished difference Result 363 states and 505 transitions. [2024-10-13 13:40:57,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 13:40:57,009 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 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 85 [2024-10-13 13:40:57,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:40:57,011 INFO L225 Difference]: With dead ends: 363 [2024-10-13 13:40:57,011 INFO L226 Difference]: Without dead ends: 362 [2024-10-13 13:40:57,012 INFO L431 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 [2024-10-13 13:40:57,012 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 101 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 13:40:57,012 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 206 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 13:40:57,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2024-10-13 13:40:57,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 304. [2024-10-13 13:40:57,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 243 states have (on average 1.4362139917695473) internal successors, (349), 259 states have internal predecessors, (349), 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) [2024-10-13 13:40:57,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 433 transitions. [2024-10-13 13:40:57,045 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 433 transitions. Word has length 85 [2024-10-13 13:40:57,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:40:57,045 INFO L471 AbstractCegarLoop]: Abstraction has 304 states and 433 transitions. [2024-10-13 13:40:57,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 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) [2024-10-13 13:40:57,046 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 433 transitions. [2024-10-13 13:40:57,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-13 13:40:57,046 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:40:57,047 INFO L215 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] [2024-10-13 13:40:57,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-13 13:40:57,047 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)] === [2024-10-13 13:40:57,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:40:57,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1696171797, now seen corresponding path program 1 times [2024-10-13 13:40:57,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:40:57,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850677415] [2024-10-13 13:40:57,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:40:57,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:40:57,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:57,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:40:57,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:57,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 13:40:57,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:57,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 13:40:57,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:57,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-13 13:40:57,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:57,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 13:40:57,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:57,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-13 13:40:57,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:57,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-13 13:40:57,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:57,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-13 13:40:57,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:57,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-13 13:40:57,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:57,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-13 13:40:57,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:57,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 13:40:57,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:57,281 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-10-13 13:40:57,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:40:57,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850677415] [2024-10-13 13:40:57,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850677415] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:40:57,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [489634582] [2024-10-13 13:40:57,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:40:57,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:40:57,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:40:57,284 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:40:57,285 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-13 13:40:57,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:57,338 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 13:40:57,340 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:40:57,500 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2024-10-13 13:40:57,500 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 13:40:57,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [489634582] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:40:57,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 13:40:57,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-10-13 13:40:57,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514012821] [2024-10-13 13:40:57,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:40:57,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 13:40:57,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:40:57,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 13:40:57,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2024-10-13 13:40:57,502 INFO L87 Difference]: Start difference. First operand 304 states and 433 transitions. Second operand has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 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) [2024-10-13 13:40:57,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:40:57,729 INFO L93 Difference]: Finished difference Result 363 states and 504 transitions. [2024-10-13 13:40:57,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 13:40:57,729 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 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 86 [2024-10-13 13:40:57,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:40:57,731 INFO L225 Difference]: With dead ends: 363 [2024-10-13 13:40:57,731 INFO L226 Difference]: Without dead ends: 362 [2024-10-13 13:40:57,732 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 105 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2024-10-13 13:40:57,732 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 46 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 13:40:57,732 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 134 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 13:40:57,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2024-10-13 13:40:57,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 313. [2024-10-13 13:40:57,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 252 states have (on average 1.4206349206349207) internal successors, (358), 268 states have internal predecessors, (358), 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) [2024-10-13 13:40:57,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 442 transitions. [2024-10-13 13:40:57,774 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 442 transitions. Word has length 86 [2024-10-13 13:40:57,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:40:57,775 INFO L471 AbstractCegarLoop]: Abstraction has 313 states and 442 transitions. [2024-10-13 13:40:57,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 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) [2024-10-13 13:40:57,775 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 442 transitions. [2024-10-13 13:40:57,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-10-13 13:40:57,776 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:40:57,776 INFO L215 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] [2024-10-13 13:40:57,797 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-13 13:40:57,980 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 [2024-10-13 13:40:57,981 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)] === [2024-10-13 13:40:57,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:40:57,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1041718040, now seen corresponding path program 1 times [2024-10-13 13:40:57,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:40:57,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382242379] [2024-10-13 13:40:57,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:40:57,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:40:57,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:58,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:40:58,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:58,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 13:40:58,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:58,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 13:40:58,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:58,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-13 13:40:58,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:58,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 13:40:58,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:58,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-13 13:40:58,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:58,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-13 13:40:58,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:58,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-13 13:40:58,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:58,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-13 13:40:58,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:58,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-13 13:40:58,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:58,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 13:40:58,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:58,182 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-10-13 13:40:58,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:40:58,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382242379] [2024-10-13 13:40:58,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382242379] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:40:58,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2080609738] [2024-10-13 13:40:58,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:40:58,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:40:58,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:40:58,184 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:40:58,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-13 13:40:58,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:58,241 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 13:40:58,243 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:40:58,352 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2024-10-13 13:40:58,353 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 13:40:58,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2080609738] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:40:58,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 13:40:58,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-10-13 13:40:58,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289514511] [2024-10-13 13:40:58,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:40:58,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 13:40:58,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:40:58,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 13:40:58,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-13 13:40:58,355 INFO L87 Difference]: Start difference. First operand 313 states and 442 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 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) [2024-10-13 13:40:58,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:40:58,521 INFO L93 Difference]: Finished difference Result 320 states and 448 transitions. [2024-10-13 13:40:58,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 13:40:58,522 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 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 [2024-10-13 13:40:58,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:40:58,523 INFO L225 Difference]: With dead ends: 320 [2024-10-13 13:40:58,523 INFO L226 Difference]: Without dead ends: 318 [2024-10-13 13:40:58,524 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-13 13:40:58,524 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 28 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 13:40:58,525 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 91 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 13:40:58,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2024-10-13 13:40:58,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 316. [2024-10-13 13:40:58,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 255 states have (on average 1.407843137254902) internal successors, (359), 271 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) [2024-10-13 13:40:58,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 443 transitions. [2024-10-13 13:40:58,557 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 443 transitions. Word has length 87 [2024-10-13 13:40:58,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:40:58,557 INFO L471 AbstractCegarLoop]: Abstraction has 316 states and 443 transitions. [2024-10-13 13:40:58,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 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) [2024-10-13 13:40:58,557 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 443 transitions. [2024-10-13 13:40:58,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-10-13 13:40:58,558 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:40:58,558 INFO L215 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] [2024-10-13 13:40:58,575 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-13 13:40:58,762 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 [2024-10-13 13:40:58,763 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)] === [2024-10-13 13:40:58,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:40:58,765 INFO L85 PathProgramCache]: Analyzing trace with hash -363654006, now seen corresponding path program 1 times [2024-10-13 13:40:58,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:40:58,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783445224] [2024-10-13 13:40:58,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:40:58,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:40:58,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:40:58,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [991489247] [2024-10-13 13:40:58,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:40:58,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:40:58,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:40:58,818 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:40:58,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-13 13:40:58,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:40:58,884 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-13 13:40:58,888 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:40:59,455 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-10-13 13:40:59,455 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:40:59,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:40:59,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783445224] [2024-10-13 13:40:59,918 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:40:59,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [991489247] [2024-10-13 13:40:59,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [991489247] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:40:59,919 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-13 13:40:59,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-10-13 13:40:59,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711169731] [2024-10-13 13:40:59,919 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-13 13:40:59,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-13 13:40:59,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:40:59,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-13 13:40:59,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2024-10-13 13:40:59,921 INFO L87 Difference]: Start difference. First operand 316 states and 443 transitions. Second operand has 12 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 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) [2024-10-13 13:41:00,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:41:00,471 INFO L93 Difference]: Finished difference Result 393 states and 546 transitions. [2024-10-13 13:41:00,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-13 13:41:00,471 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 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 89 [2024-10-13 13:41:00,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:41:00,473 INFO L225 Difference]: With dead ends: 393 [2024-10-13 13:41:00,473 INFO L226 Difference]: Without dead ends: 392 [2024-10-13 13:41:00,473 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-13 13:41:00,474 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 121 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-13 13:41:00,474 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 282 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-13 13:41:00,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2024-10-13 13:41:00,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 365. [2024-10-13 13:41:00,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 298 states have (on average 1.3825503355704698) internal successors, (412), 314 states have internal predecessors, (412), 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) [2024-10-13 13:41:00,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 508 transitions. [2024-10-13 13:41:00,513 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 508 transitions. Word has length 89 [2024-10-13 13:41:00,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:41:00,514 INFO L471 AbstractCegarLoop]: Abstraction has 365 states and 508 transitions. [2024-10-13 13:41:00,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 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) [2024-10-13 13:41:00,514 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 508 transitions. [2024-10-13 13:41:00,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-10-13 13:41:00,517 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:41:00,517 INFO L215 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] [2024-10-13 13:41:00,533 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-10-13 13:41:00,718 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 [2024-10-13 13:41:00,718 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)] === [2024-10-13 13:41:00,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:41:00,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1611627783, now seen corresponding path program 1 times [2024-10-13 13:41:00,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:41:00,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761609685] [2024-10-13 13:41:00,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:00,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:41:00,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:41:00,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [503945771] [2024-10-13 13:41:00,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:00,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:41:00,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:41:00,739 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:41:00,743 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-13 13:41:00,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:00,804 INFO L255 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-13 13:41:00,806 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:41:01,333 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-10-13 13:41:01,334 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:41:01,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:41:01,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761609685] [2024-10-13 13:41:01,695 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:41:01,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [503945771] [2024-10-13 13:41:01,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [503945771] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:41:01,696 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-13 13:41:01,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-10-13 13:41:01,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867238101] [2024-10-13 13:41:01,696 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-13 13:41:01,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-13 13:41:01,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:41:01,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-13 13:41:01,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2024-10-13 13:41:01,698 INFO L87 Difference]: Start difference. First operand 365 states and 508 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) [2024-10-13 13:41:02,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:41:02,198 INFO L93 Difference]: Finished difference Result 428 states and 595 transitions. [2024-10-13 13:41:02,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-13 13:41:02,199 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 [2024-10-13 13:41:02,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:41:02,201 INFO L225 Difference]: With dead ends: 428 [2024-10-13 13:41:02,202 INFO L226 Difference]: Without dead ends: 427 [2024-10-13 13:41:02,202 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2024-10-13 13:41:02,203 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 94 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 13:41:02,203 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 304 Invalid, 570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 13:41:02,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2024-10-13 13:41:02,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 414. [2024-10-13 13:41:02,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 341 states have (on average 1.3577712609970674) internal successors, (463), 357 states have internal predecessors, (463), 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) [2024-10-13 13:41:02,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 571 transitions. [2024-10-13 13:41:02,242 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 571 transitions. Word has length 90 [2024-10-13 13:41:02,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:41:02,242 INFO L471 AbstractCegarLoop]: Abstraction has 414 states and 571 transitions. [2024-10-13 13:41:02,242 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) [2024-10-13 13:41:02,242 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 571 transitions. [2024-10-13 13:41:02,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-13 13:41:02,243 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:41:02,243 INFO L215 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] [2024-10-13 13:41:02,261 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-10-13 13:41:02,447 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 [2024-10-13 13:41:02,448 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)] === [2024-10-13 13:41:02,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:41:02,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1579146196, now seen corresponding path program 1 times [2024-10-13 13:41:02,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:41:02,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219418259] [2024-10-13 13:41:02,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:02,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:41:02,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:02,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:41:02,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:02,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 13:41:02,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:02,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 13:41:02,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:02,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-13 13:41:02,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:02,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 13:41:02,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:02,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-13 13:41:02,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:02,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-13 13:41:02,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:02,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-13 13:41:02,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:02,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-13 13:41:02,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:02,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-13 13:41:02,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:02,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 13:41:02,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:02,555 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2024-10-13 13:41:02,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:41:02,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219418259] [2024-10-13 13:41:02,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219418259] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:41:02,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:41:02,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 13:41:02,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435105396] [2024-10-13 13:41:02,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:41:02,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 13:41:02,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:41:02,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 13:41:02,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 13:41:02,558 INFO L87 Difference]: Start difference. First operand 414 states and 571 transitions. Second operand has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 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) [2024-10-13 13:41:02,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:41:02,778 INFO L93 Difference]: Finished difference Result 414 states and 571 transitions. [2024-10-13 13:41:02,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 13:41:02,778 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 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 91 [2024-10-13 13:41:02,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:41:02,780 INFO L225 Difference]: With dead ends: 414 [2024-10-13 13:41:02,781 INFO L226 Difference]: Without dead ends: 413 [2024-10-13 13:41:02,781 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-13 13:41:02,781 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 71 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 13:41:02,781 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 111 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 13:41:02,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2024-10-13 13:41:02,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 401. [2024-10-13 13:41:02,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 329 states have (on average 1.3282674772036474) internal successors, (437), 344 states have internal predecessors, (437), 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) [2024-10-13 13:41:02,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 545 transitions. [2024-10-13 13:41:02,843 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 545 transitions. Word has length 91 [2024-10-13 13:41:02,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:41:02,843 INFO L471 AbstractCegarLoop]: Abstraction has 401 states and 545 transitions. [2024-10-13 13:41:02,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 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) [2024-10-13 13:41:02,844 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 545 transitions. [2024-10-13 13:41:02,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-10-13 13:41:02,844 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:41:02,845 INFO L215 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] [2024-10-13 13:41:02,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-13 13:41:02,845 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)] === [2024-10-13 13:41:02,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:41:02,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1708891735, now seen corresponding path program 1 times [2024-10-13 13:41:02,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:41:02,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074929863] [2024-10-13 13:41:02,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:02,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:41:02,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:41:02,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1023275244] [2024-10-13 13:41:02,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:02,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:41:02,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:41:02,865 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:41:02,867 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-13 13:41:02,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:02,922 INFO L255 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-10-13 13:41:02,924 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:41:03,691 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-10-13 13:41:03,691 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:41:06,044 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-10-13 13:41:06,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:41:06,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074929863] [2024-10-13 13:41:06,044 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:41:06,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1023275244] [2024-10-13 13:41:06,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1023275244] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:41:06,045 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-13 13:41:06,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 22 [2024-10-13 13:41:06,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012465620] [2024-10-13 13:41:06,045 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-13 13:41:06,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-13 13:41:06,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:41:06,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-13 13:41:06,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=384, Unknown=0, NotChecked=0, Total=506 [2024-10-13 13:41:06,047 INFO L87 Difference]: Start difference. First operand 401 states and 545 transitions. Second operand has 23 states, 22 states have (on average 3.727272727272727) internal successors, (82), 23 states have internal predecessors, (82), 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) [2024-10-13 13:41:10,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:41:10,335 INFO L93 Difference]: Finished difference Result 563 states and 763 transitions. [2024-10-13 13:41:10,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-10-13 13:41:10,336 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 3.727272727272727) internal successors, (82), 23 states have internal predecessors, (82), 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 92 [2024-10-13 13:41:10,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:41:10,340 INFO L225 Difference]: With dead ends: 563 [2024-10-13 13:41:10,340 INFO L226 Difference]: Without dead ends: 443 [2024-10-13 13:41:10,342 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 540 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=566, Invalid=1786, Unknown=0, NotChecked=0, Total=2352 [2024-10-13 13:41:10,345 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 390 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 1009 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 1119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 1009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-13 13:41:10,345 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 292 Invalid, 1119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 1009 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-13 13:41:10,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2024-10-13 13:41:10,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 399. [2024-10-13 13:41:10,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 331 states have (on average 1.3232628398791542) internal successors, (438), 346 states have internal predecessors, (438), 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) [2024-10-13 13:41:10,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 538 transitions. [2024-10-13 13:41:10,403 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 538 transitions. Word has length 92 [2024-10-13 13:41:10,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:41:10,403 INFO L471 AbstractCegarLoop]: Abstraction has 399 states and 538 transitions. [2024-10-13 13:41:10,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 3.727272727272727) internal successors, (82), 23 states have internal predecessors, (82), 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) [2024-10-13 13:41:10,404 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 538 transitions. [2024-10-13 13:41:10,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-13 13:41:10,405 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:41:10,405 INFO L215 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] [2024-10-13 13:41:10,422 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-10-13 13:41:10,609 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 [2024-10-13 13:41:10,610 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)] === [2024-10-13 13:41:10,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:41:10,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1294179065, now seen corresponding path program 3 times [2024-10-13 13:41:10,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:41:10,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306785432] [2024-10-13 13:41:10,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:10,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:41:10,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:41:10,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1658841911] [2024-10-13 13:41:10,639 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-13 13:41:10,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:41:10,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:41:10,641 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:41:10,643 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-13 13:41:10,690 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-10-13 13:41:10,690 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 13:41:10,692 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-13 13:41:10,694 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:41:11,528 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 26 proven. 35 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2024-10-13 13:41:11,528 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:41:11,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:41:11,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306785432] [2024-10-13 13:41:11,710 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:41:11,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1658841911] [2024-10-13 13:41:11,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1658841911] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:41:11,710 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-13 13:41:11,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-10-13 13:41:11,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849933804] [2024-10-13 13:41:11,710 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-13 13:41:11,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-13 13:41:11,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:41:11,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-13 13:41:11,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=197, Unknown=1, NotChecked=0, Total=240 [2024-10-13 13:41:11,711 INFO L87 Difference]: Start difference. First operand 399 states and 538 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 10 states have internal predecessors, (31), 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) [2024-10-13 13:41:13,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-10-13 13:41:16,970 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-10-13 13:41:17,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:41:17,490 INFO L93 Difference]: Finished difference Result 430 states and 575 transitions. [2024-10-13 13:41:17,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-13 13:41:17,491 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 10 states have internal predecessors, (31), 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 100 [2024-10-13 13:41:17,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:41:17,493 INFO L225 Difference]: With dead ends: 430 [2024-10-13 13:41:17,493 INFO L226 Difference]: Without dead ends: 426 [2024-10-13 13:41:17,494 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=130, Invalid=415, Unknown=7, NotChecked=0, Total=552 [2024-10-13 13:41:17,494 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 222 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 53 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-10-13 13:41:17,495 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 242 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 537 Invalid, 2 Unknown, 0 Unchecked, 3.5s Time] [2024-10-13 13:41:17,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2024-10-13 13:41:17,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 394. [2024-10-13 13:41:17,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 329 states have (on average 1.2887537993920972) internal successors, (424), 341 states have internal predecessors, (424), 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) [2024-10-13 13:41:17,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 524 transitions. [2024-10-13 13:41:17,547 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 524 transitions. Word has length 100 [2024-10-13 13:41:17,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:41:17,548 INFO L471 AbstractCegarLoop]: Abstraction has 394 states and 524 transitions. [2024-10-13 13:41:17,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 10 states have internal predecessors, (31), 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) [2024-10-13 13:41:17,548 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 524 transitions. [2024-10-13 13:41:17,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-10-13 13:41:17,549 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:41:17,549 INFO L215 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] [2024-10-13 13:41:17,567 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-10-13 13:41:17,753 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 [2024-10-13 13:41:17,754 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)] === [2024-10-13 13:41:17,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:41:17,754 INFO L85 PathProgramCache]: Analyzing trace with hash -2086556248, now seen corresponding path program 1 times [2024-10-13 13:41:17,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:41:17,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115369168] [2024-10-13 13:41:17,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:17,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:41:17,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:41:17,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [481206149] [2024-10-13 13:41:17,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:17,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:41:17,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:41:17,782 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:41:17,783 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-10-13 13:41:17,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:17,843 INFO L255 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-13 13:41:17,845 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:41:18,183 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-10-13 13:41:18,183 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:41:18,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:41:18,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115369168] [2024-10-13 13:41:18,718 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:41:18,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [481206149] [2024-10-13 13:41:18,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [481206149] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:41:18,718 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-13 13:41:18,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-10-13 13:41:18,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568264954] [2024-10-13 13:41:18,718 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-13 13:41:18,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 13:41:18,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:41:18,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 13:41:18,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2024-10-13 13:41:18,720 INFO L87 Difference]: Start difference. First operand 394 states and 524 transitions. Second operand has 9 states, 8 states have (on average 5.875) internal successors, (47), 9 states have internal predecessors, (47), 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) [2024-10-13 13:41:19,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:41:19,123 INFO L93 Difference]: Finished difference Result 399 states and 531 transitions. [2024-10-13 13:41:19,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 13:41:19,124 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.875) internal successors, (47), 9 states have internal predecessors, (47), 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 106 [2024-10-13 13:41:19,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:41:19,126 INFO L225 Difference]: With dead ends: 399 [2024-10-13 13:41:19,126 INFO L226 Difference]: Without dead ends: 398 [2024-10-13 13:41:19,127 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2024-10-13 13:41:19,127 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 23 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 13:41:19,128 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 310 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 13:41:19,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2024-10-13 13:41:19,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 395. [2024-10-13 13:41:19,187 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) [2024-10-13 13:41:19,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 525 transitions. [2024-10-13 13:41:19,189 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 525 transitions. Word has length 106 [2024-10-13 13:41:19,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:41:19,189 INFO L471 AbstractCegarLoop]: Abstraction has 395 states and 525 transitions. [2024-10-13 13:41:19,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.875) internal successors, (47), 9 states have internal predecessors, (47), 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) [2024-10-13 13:41:19,190 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 525 transitions. [2024-10-13 13:41:19,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-10-13 13:41:19,191 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:41:19,191 INFO L215 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] [2024-10-13 13:41:19,210 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-10-13 13:41:19,391 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 [2024-10-13 13:41:19,392 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)] === [2024-10-13 13:41:19,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:41:19,392 INFO L85 PathProgramCache]: Analyzing trace with hash -258734123, now seen corresponding path program 1 times [2024-10-13 13:41:19,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:41:19,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559931970] [2024-10-13 13:41:19,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:19,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:41:19,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:41:19,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1322555088] [2024-10-13 13:41:19,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:19,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:41:19,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:41:19,419 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:41:19,421 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-10-13 13:41:19,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:19,482 INFO L255 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-13 13:41:19,484 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:41:19,942 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 7 proven. 16 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2024-10-13 13:41:19,943 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:41:21,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:41:21,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559931970] [2024-10-13 13:41:21,024 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:41:21,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1322555088] [2024-10-13 13:41:21,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1322555088] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:41:21,024 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-13 13:41:21,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-10-13 13:41:21,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646788488] [2024-10-13 13:41:21,025 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-13 13:41:21,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-13 13:41:21,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:41:21,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-13 13:41:21,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2024-10-13 13:41:21,028 INFO L87 Difference]: Start difference. First operand 395 states and 525 transitions. Second operand has 13 states, 12 states have (on average 4.25) internal successors, (51), 13 states have internal predecessors, (51), 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) [2024-10-13 13:41:21,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:41:21,549 INFO L93 Difference]: Finished difference Result 667 states and 904 transitions. [2024-10-13 13:41:21,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-13 13:41:21,550 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.25) internal successors, (51), 13 states have internal predecessors, (51), 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 107 [2024-10-13 13:41:21,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:41:21,552 INFO L225 Difference]: With dead ends: 667 [2024-10-13 13:41:21,552 INFO L226 Difference]: Without dead ends: 416 [2024-10-13 13:41:21,553 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=178, Invalid=524, Unknown=0, NotChecked=0, Total=702 [2024-10-13 13:41:21,553 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 94 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 13:41:21,554 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 421 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 13:41:21,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2024-10-13 13:41:21,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 410. [2024-10-13 13:41:21,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 341 states have (on average 1.3020527859237536) 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) [2024-10-13 13:41:21,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 552 transitions. [2024-10-13 13:41:21,609 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 552 transitions. Word has length 107 [2024-10-13 13:41:21,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:41:21,610 INFO L471 AbstractCegarLoop]: Abstraction has 410 states and 552 transitions. [2024-10-13 13:41:21,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.25) internal successors, (51), 13 states have internal predecessors, (51), 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) [2024-10-13 13:41:21,610 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 552 transitions. [2024-10-13 13:41:21,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-10-13 13:41:21,611 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:41:21,611 INFO L215 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] [2024-10-13 13:41:21,629 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-10-13 13:41:21,811 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 [2024-10-13 13:41:21,812 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)] === [2024-10-13 13:41:21,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:41:21,812 INFO L85 PathProgramCache]: Analyzing trace with hash 569176906, now seen corresponding path program 1 times [2024-10-13 13:41:21,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:41:21,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132522475] [2024-10-13 13:41:21,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:21,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:41:21,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:21,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:41:21,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:21,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 13:41:21,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:21,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 13:41:21,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:21,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-13 13:41:21,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:21,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 13:41:21,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:22,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-13 13:41:22,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:22,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-13 13:41:22,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:22,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-13 13:41:22,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:22,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-13 13:41:22,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:22,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-13 13:41:22,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:22,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 13:41:22,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:22,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 13:41:22,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:22,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-13 13:41:22,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:22,018 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2024-10-13 13:41:22,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:41:22,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132522475] [2024-10-13 13:41:22,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132522475] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:41:22,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:41:22,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 13:41:22,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025624270] [2024-10-13 13:41:22,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:41:22,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 13:41:22,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:41:22,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 13:41:22,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 13:41:22,021 INFO L87 Difference]: Start difference. First operand 410 states and 552 transitions. Second operand has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 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) [2024-10-13 13:41:22,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:41:22,500 INFO L93 Difference]: Finished difference Result 410 states and 552 transitions. [2024-10-13 13:41:22,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 13:41:22,500 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 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 108 [2024-10-13 13:41:22,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:41:22,502 INFO L225 Difference]: With dead ends: 410 [2024-10-13 13:41:22,502 INFO L226 Difference]: Without dead ends: 409 [2024-10-13 13:41:22,502 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-13 13:41:22,503 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 43 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 13:41:22,503 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 141 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 13:41:22,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2024-10-13 13:41:22,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 409. [2024-10-13 13:41:22,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 341 states have (on average 1.2991202346041055) internal successors, (443), 352 states have internal predecessors, (443), 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) [2024-10-13 13:41:22,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 551 transitions. [2024-10-13 13:41:22,553 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 551 transitions. Word has length 108 [2024-10-13 13:41:22,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:41:22,554 INFO L471 AbstractCegarLoop]: Abstraction has 409 states and 551 transitions. [2024-10-13 13:41:22,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 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) [2024-10-13 13:41:22,554 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 551 transitions. [2024-10-13 13:41:22,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-10-13 13:41:22,555 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:41:22,555 INFO L215 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] [2024-10-13 13:41:22,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-13 13:41:22,556 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)] === [2024-10-13 13:41:22,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:41:22,556 INFO L85 PathProgramCache]: Analyzing trace with hash -289714692, now seen corresponding path program 1 times [2024-10-13 13:41:22,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:41:22,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715648459] [2024-10-13 13:41:22,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:22,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:41:22,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:22,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:41:22,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:22,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 13:41:22,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:22,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 13:41:22,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:22,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-13 13:41:22,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:22,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 13:41:22,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:22,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-13 13:41:22,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:22,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-13 13:41:22,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:22,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-13 13:41:22,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:22,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-13 13:41:22,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:22,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-13 13:41:22,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:22,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-13 13:41:22,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:22,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-13 13:41:22,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:22,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-13 13:41:22,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:22,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-13 13:41:22,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:22,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-13 13:41:22,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:22,687 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-10-13 13:41:22,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:41:22,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715648459] [2024-10-13 13:41:22,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715648459] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:41:22,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [628870881] [2024-10-13 13:41:22,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:22,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:41:22,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:41:22,689 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:41:22,691 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-10-13 13:41:22,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:22,745 INFO L255 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-13 13:41:22,747 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:41:22,803 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-10-13 13:41:22,803 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:41:22,904 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-10-13 13:41:22,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [628870881] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:41:22,904 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 13:41:22,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-13 13:41:22,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544692458] [2024-10-13 13:41:22,905 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 13:41:22,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-13 13:41:22,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:41:22,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-13 13:41:22,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-10-13 13:41:22,906 INFO L87 Difference]: Start difference. First operand 409 states and 551 transitions. Second operand has 11 states, 10 states have (on average 8.3) internal successors, (83), 11 states have internal predecessors, (83), 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) [2024-10-13 13:41:23,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:41:23,182 INFO L93 Difference]: Finished difference Result 726 states and 961 transitions. [2024-10-13 13:41:23,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-13 13:41:23,183 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.3) internal successors, (83), 11 states have internal predecessors, (83), 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 110 [2024-10-13 13:41:23,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:41:23,186 INFO L225 Difference]: With dead ends: 726 [2024-10-13 13:41:23,186 INFO L226 Difference]: Without dead ends: 724 [2024-10-13 13:41:23,187 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-10-13 13:41:23,187 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 363 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 13:41:23,187 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [379 Valid, 356 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 13:41:23,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2024-10-13 13:41:23,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 483. [2024-10-13 13:41:23,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 401 states have (on average 1.2718204488778055) internal successors, (510), 412 states have internal predecessors, (510), 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) [2024-10-13 13:41:23,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 646 transitions. [2024-10-13 13:41:23,273 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 646 transitions. Word has length 110 [2024-10-13 13:41:23,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:41:23,273 INFO L471 AbstractCegarLoop]: Abstraction has 483 states and 646 transitions. [2024-10-13 13:41:23,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.3) internal successors, (83), 11 states have internal predecessors, (83), 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) [2024-10-13 13:41:23,274 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 646 transitions. [2024-10-13 13:41:23,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-10-13 13:41:23,275 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:41:23,275 INFO L215 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] [2024-10-13 13:41:23,291 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-10-13 13:41:23,475 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 [2024-10-13 13:41:23,475 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)] === [2024-10-13 13:41:23,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:41:23,476 INFO L85 PathProgramCache]: Analyzing trace with hash 464615031, now seen corresponding path program 1 times [2024-10-13 13:41:23,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:41:23,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911112227] [2024-10-13 13:41:23,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:23,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:41:23,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:41:23,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1861916418] [2024-10-13 13:41:23,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:23,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:41:23,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:41:23,496 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) [2024-10-13 13:41:23,502 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-10-13 13:41:23,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:23,565 INFO L255 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-10-13 13:41:23,567 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:41:24,068 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 7 proven. 16 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2024-10-13 13:41:24,069 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:41:25,676 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-10-13 13:41:25,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:41:25,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911112227] [2024-10-13 13:41:25,677 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:41:25,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1861916418] [2024-10-13 13:41:25,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1861916418] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:41:25,678 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-13 13:41:25,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 19 [2024-10-13 13:41:25,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022456507] [2024-10-13 13:41:25,678 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-13 13:41:25,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-13 13:41:25,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:41:25,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-13 13:41:25,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=278, Unknown=0, NotChecked=0, Total=380 [2024-10-13 13:41:25,680 INFO L87 Difference]: Start difference. First operand 483 states and 646 transitions. Second operand has 20 states, 19 states have (on average 5.052631578947368) internal successors, (96), 20 states have internal predecessors, (96), 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) [2024-10-13 13:41:28,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:41:28,721 INFO L93 Difference]: Finished difference Result 528 states and 702 transitions. [2024-10-13 13:41:28,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-13 13:41:28,721 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 5.052631578947368) internal successors, (96), 20 states have internal predecessors, (96), 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 109 [2024-10-13 13:41:28,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:41:28,723 INFO L225 Difference]: With dead ends: 528 [2024-10-13 13:41:28,723 INFO L226 Difference]: Without dead ends: 521 [2024-10-13 13:41:28,724 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 197 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=269, Invalid=787, Unknown=0, NotChecked=0, Total=1056 [2024-10-13 13:41:28,724 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 116 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-10-13 13:41:28,725 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 389 Invalid, 600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-10-13 13:41:28,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2024-10-13 13:41:28,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 480. [2024-10-13 13:41:28,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 398 states have (on average 1.2613065326633166) internal successors, (502), 409 states have internal predecessors, (502), 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) [2024-10-13 13:41:28,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 638 transitions. [2024-10-13 13:41:28,782 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 638 transitions. Word has length 109 [2024-10-13 13:41:28,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:41:28,783 INFO L471 AbstractCegarLoop]: Abstraction has 480 states and 638 transitions. [2024-10-13 13:41:28,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 5.052631578947368) internal successors, (96), 20 states have internal predecessors, (96), 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) [2024-10-13 13:41:28,783 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 638 transitions. [2024-10-13 13:41:28,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-13 13:41:28,784 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:41:28,785 INFO L215 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] [2024-10-13 13:41:28,803 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-10-13 13:41:28,985 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 [2024-10-13 13:41:28,985 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)] === [2024-10-13 13:41:28,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:41:28,986 INFO L85 PathProgramCache]: Analyzing trace with hash -2059823605, now seen corresponding path program 2 times [2024-10-13 13:41:28,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:41:28,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019630814] [2024-10-13 13:41:28,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:28,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:41:29,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:41:29,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [990831069] [2024-10-13 13:41:29,008 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 13:41:29,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:41:29,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:41:29,011 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) [2024-10-13 13:41:29,014 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-10-13 13:41:29,077 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-13 13:41:29,077 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 13:41:29,079 INFO L255 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-13 13:41:29,081 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:41:29,252 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 25 proven. 2 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2024-10-13 13:41:29,252 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:41:33,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:41:33,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019630814] [2024-10-13 13:41:33,859 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:41:33,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [990831069] [2024-10-13 13:41:33,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [990831069] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:41:33,859 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-13 13:41:33,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-10-13 13:41:33,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234351553] [2024-10-13 13:41:33,860 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-13 13:41:33,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 13:41:33,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:41:33,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 13:41:33,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=55, Unknown=1, NotChecked=0, Total=90 [2024-10-13 13:41:33,861 INFO L87 Difference]: Start difference. First operand 480 states and 638 transitions. Second operand has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 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) [2024-10-13 13:41:34,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:41:34,091 INFO L93 Difference]: Finished difference Result 543 states and 729 transitions. [2024-10-13 13:41:34,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 13:41:34,093 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 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 112 [2024-10-13 13:41:34,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:41:34,096 INFO L225 Difference]: With dead ends: 543 [2024-10-13 13:41:34,096 INFO L226 Difference]: Without dead ends: 541 [2024-10-13 13:41:34,096 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=52, Invalid=79, Unknown=1, NotChecked=0, Total=132 [2024-10-13 13:41:34,096 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 74 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 13:41:34,097 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 202 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 13:41:34,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2024-10-13 13:41:34,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 478. [2024-10-13 13:41:34,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 398 states have (on average 1.1984924623115578) internal successors, (477), 407 states have internal predecessors, (477), 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) [2024-10-13 13:41:34,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 613 transitions. [2024-10-13 13:41:34,160 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 613 transitions. Word has length 112 [2024-10-13 13:41:34,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:41:34,161 INFO L471 AbstractCegarLoop]: Abstraction has 478 states and 613 transitions. [2024-10-13 13:41:34,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 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) [2024-10-13 13:41:34,161 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 613 transitions. [2024-10-13 13:41:34,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-13 13:41:34,162 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:41:34,162 INFO L215 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] [2024-10-13 13:41:34,180 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-10-13 13:41:34,362 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 [2024-10-13 13:41:34,363 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)] === [2024-10-13 13:41:34,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:41:34,363 INFO L85 PathProgramCache]: Analyzing trace with hash 700203380, now seen corresponding path program 1 times [2024-10-13 13:41:34,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:41:34,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146206125] [2024-10-13 13:41:34,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:34,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:41:34,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:34,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:41:34,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:34,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 13:41:34,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:34,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 13:41:34,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:34,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-13 13:41:34,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:34,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 13:41:34,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:34,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-13 13:41:34,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:34,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-13 13:41:34,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:34,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-13 13:41:34,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:34,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-13 13:41:34,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:34,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-13 13:41:34,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:34,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 13:41:34,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:34,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 13:41:34,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:34,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-13 13:41:34,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:34,626 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2024-10-13 13:41:34,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:41:34,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146206125] [2024-10-13 13:41:34,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146206125] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:41:34,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [707812030] [2024-10-13 13:41:34,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:34,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:41:34,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:41:34,629 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) [2024-10-13 13:41:34,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-10-13 13:41:34,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:34,685 INFO L255 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-13 13:41:34,686 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:41:34,762 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 7 proven. 17 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-10-13 13:41:34,763 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:41:34,889 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 7 proven. 17 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-10-13 13:41:34,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [707812030] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:41:34,890 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 13:41:34,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 12 [2024-10-13 13:41:34,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332184348] [2024-10-13 13:41:34,891 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 13:41:34,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-13 13:41:34,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:41:34,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-13 13:41:34,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-13 13:41:34,893 INFO L87 Difference]: Start difference. First operand 478 states and 613 transitions. Second operand has 12 states, 12 states have (on average 9.333333333333334) internal successors, (112), 12 states have internal predecessors, (112), 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) [2024-10-13 13:41:35,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:41:35,799 INFO L93 Difference]: Finished difference Result 842 states and 1103 transitions. [2024-10-13 13:41:35,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-13 13:41:35,800 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.333333333333334) internal successors, (112), 12 states have internal predecessors, (112), 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 112 [2024-10-13 13:41:35,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:41:35,803 INFO L225 Difference]: With dead ends: 842 [2024-10-13 13:41:35,804 INFO L226 Difference]: Without dead ends: 707 [2024-10-13 13:41:35,804 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=97, Invalid=409, Unknown=0, NotChecked=0, Total=506 [2024-10-13 13:41:35,805 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 168 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 741 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-13 13:41:35,805 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 535 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 741 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-13 13:41:35,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2024-10-13 13:41:35,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 473. [2024-10-13 13:41:35,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 393 states have (on average 1.2264631043256997) internal successors, (482), 402 states have internal predecessors, (482), 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) [2024-10-13 13:41:35,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 618 transitions. [2024-10-13 13:41:35,886 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 618 transitions. Word has length 112 [2024-10-13 13:41:35,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:41:35,886 INFO L471 AbstractCegarLoop]: Abstraction has 473 states and 618 transitions. [2024-10-13 13:41:35,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.333333333333334) internal successors, (112), 12 states have internal predecessors, (112), 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) [2024-10-13 13:41:35,887 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 618 transitions. [2024-10-13 13:41:35,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-10-13 13:41:35,887 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:41:35,888 INFO L215 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] [2024-10-13 13:41:35,904 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-10-13 13:41:36,088 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 [2024-10-13 13:41:36,088 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)] === [2024-10-13 13:41:36,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:41:36,089 INFO L85 PathProgramCache]: Analyzing trace with hash 569977766, now seen corresponding path program 2 times [2024-10-13 13:41:36,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:41:36,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699143894] [2024-10-13 13:41:36,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:36,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:41:36,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:41:36,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1041083438] [2024-10-13 13:41:36,112 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 13:41:36,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:41:36,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:41:36,113 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) [2024-10-13 13:41:36,115 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-10-13 13:41:36,207 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-13 13:41:36,207 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 13:41:36,208 INFO L255 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-10-13 13:41:36,210 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:41:36,826 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 3 proven. 31 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2024-10-13 13:41:36,826 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:41:37,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:41:37,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699143894] [2024-10-13 13:41:37,032 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:41:37,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1041083438] [2024-10-13 13:41:37,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1041083438] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:41:37,032 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-13 13:41:37,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-10-13 13:41:37,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840630274] [2024-10-13 13:41:37,032 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-13 13:41:37,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-13 13:41:37,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:41:37,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-13 13:41:37,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2024-10-13 13:41:37,033 INFO L87 Difference]: Start difference. First operand 473 states and 618 transitions. Second operand has 14 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 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) [2024-10-13 13:41:37,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:41:37,424 INFO L93 Difference]: Finished difference Result 511 states and 667 transitions. [2024-10-13 13:41:37,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-13 13:41:37,425 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 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 113 [2024-10-13 13:41:37,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:41:37,426 INFO L225 Difference]: With dead ends: 511 [2024-10-13 13:41:37,427 INFO L226 Difference]: Without dead ends: 510 [2024-10-13 13:41:37,427 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2024-10-13 13:41:37,427 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 97 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 13:41:37,427 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 236 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 630 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 13:41:37,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2024-10-13 13:41:37,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 498. [2024-10-13 13:41:37,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 414 states have (on average 1.2198067632850242) internal successors, (505), 423 states have internal predecessors, (505), 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) [2024-10-13 13:41:37,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 649 transitions. [2024-10-13 13:41:37,487 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 649 transitions. Word has length 113 [2024-10-13 13:41:37,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:41:37,487 INFO L471 AbstractCegarLoop]: Abstraction has 498 states and 649 transitions. [2024-10-13 13:41:37,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 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) [2024-10-13 13:41:37,487 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 649 transitions. [2024-10-13 13:41:37,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-13 13:41:37,488 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:41:37,488 INFO L215 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] [2024-10-13 13:41:37,500 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-10-13 13:41:37,688 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 [2024-10-13 13:41:37,688 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)] === [2024-10-13 13:41:37,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:41:37,689 INFO L85 PathProgramCache]: Analyzing trace with hash -570197465, now seen corresponding path program 3 times [2024-10-13 13:41:37,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:41:37,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156280595] [2024-10-13 13:41:37,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:37,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:41:37,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:41:37,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2103192809] [2024-10-13 13:41:37,709 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-13 13:41:37,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:41:37,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:41:37,711 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) [2024-10-13 13:41:37,714 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-10-13 13:41:37,763 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-13 13:41:37,763 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 13:41:37,764 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-10-13 13:41:37,766 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:42:10,392 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 64 proven. 3 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2024-10-13 13:42:10,392 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:42:11,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:42:11,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156280595] [2024-10-13 13:42:11,942 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:42:11,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2103192809] [2024-10-13 13:42:11,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2103192809] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:42:11,942 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-13 13:42:11,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-10-13 13:42:11,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97169710] [2024-10-13 13:42:11,942 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-13 13:42:11,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-13 13:42:11,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:42:11,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-13 13:42:11,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2024-10-13 13:42:11,943 INFO L87 Difference]: Start difference. First operand 498 states and 649 transitions. Second operand has 12 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 12 states have internal predecessors, (47), 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) [2024-10-13 13:42:14,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.36s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []