./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-numeric/rec_counter3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-numeric/rec_counter3.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-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 64bit --witnessprinter.graph.data.programhash d7b4f33979632a981e739ff06b52fe01aa9fb175d5e5193b145052887f22f8a3 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 16:50:35,817 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 16:50:35,878 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-12 16:50:35,883 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 16:50:35,884 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 16:50:35,921 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 16:50:35,922 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 16:50:35,922 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 16:50:35,922 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 16:50:35,923 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 16:50:35,923 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 16:50:35,924 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 16:50:35,924 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 16:50:35,925 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 16:50:35,927 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 16:50:35,927 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 16:50:35,928 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 16:50:35,928 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 16:50:35,928 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 16:50:35,928 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 16:50:35,928 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 16:50:35,929 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 16:50:35,929 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 16:50:35,930 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-12 16:50:35,930 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 16:50:35,930 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 16:50:35,931 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 16:50:35,931 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 16:50:35,931 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 16:50:35,931 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 16:50:35,931 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 16:50:35,931 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 16:50:35,932 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 16:50:35,932 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 16:50:35,932 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 16:50:35,932 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 16:50:35,932 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 16:50:35,932 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 16:50:35,932 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 16:50:35,933 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 16:50:35,933 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 16:50:35,935 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d7b4f33979632a981e739ff06b52fe01aa9fb175d5e5193b145052887f22f8a3 [2024-11-12 16:50:36,162 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 16:50:36,183 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 16:50:36,187 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 16:50:36,188 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 16:50:36,188 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 16:50:36,189 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-numeric/rec_counter3.c [2024-11-12 16:50:37,554 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 16:50:37,713 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 16:50:37,713 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/rec_counter3.c [2024-11-12 16:50:37,718 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b30a954fc/87e25855500a4484a4a6e07a79ac9b9e/FLAG7021b8f96 [2024-11-12 16:50:38,126 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b30a954fc/87e25855500a4484a4a6e07a79ac9b9e [2024-11-12 16:50:38,128 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 16:50:38,131 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 16:50:38,134 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 16:50:38,134 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 16:50:38,139 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 16:50:38,139 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:50:38" (1/1) ... [2024-11-12 16:50:38,140 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e669506 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:50:38, skipping insertion in model container [2024-11-12 16:50:38,140 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:50:38" (1/1) ... [2024-11-12 16:50:38,155 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 16:50:38,309 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 16:50:38,314 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 16:50:38,326 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 16:50:38,339 INFO L204 MainTranslator]: Completed translation [2024-11-12 16:50:38,340 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:50:38 WrapperNode [2024-11-12 16:50:38,340 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 16:50:38,342 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 16:50:38,342 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 16:50:38,342 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 16:50:38,347 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:50:38" (1/1) ... [2024-11-12 16:50:38,351 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:50:38" (1/1) ... [2024-11-12 16:50:38,363 INFO L138 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 17 [2024-11-12 16:50:38,364 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 16:50:38,364 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 16:50:38,364 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 16:50:38,365 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 16:50:38,372 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:50:38" (1/1) ... [2024-11-12 16:50:38,372 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:50:38" (1/1) ... [2024-11-12 16:50:38,373 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:50:38" (1/1) ... [2024-11-12 16:50:38,378 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-12 16:50:38,381 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:50:38" (1/1) ... [2024-11-12 16:50:38,382 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:50:38" (1/1) ... [2024-11-12 16:50:38,383 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:50:38" (1/1) ... [2024-11-12 16:50:38,386 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:50:38" (1/1) ... [2024-11-12 16:50:38,387 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:50:38" (1/1) ... [2024-11-12 16:50:38,387 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:50:38" (1/1) ... [2024-11-12 16:50:38,392 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 16:50:38,392 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 16:50:38,393 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 16:50:38,393 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 16:50:38,393 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:50:38" (1/1) ... [2024-11-12 16:50:38,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 16:50:38,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 16:50:38,425 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-12 16:50:38,427 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-12 16:50:38,459 INFO L130 BoogieDeclarations]: Found specification of procedure rec [2024-11-12 16:50:38,459 INFO L138 BoogieDeclarations]: Found implementation of procedure rec [2024-11-12 16:50:38,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 16:50:38,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 16:50:38,501 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 16:50:38,503 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 16:50:38,588 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-11-12 16:50:38,589 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 16:50:38,598 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 16:50:38,598 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-12 16:50:38,598 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:50:38 BoogieIcfgContainer [2024-11-12 16:50:38,599 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 16:50:38,600 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 16:50:38,600 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 16:50:38,603 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 16:50:38,603 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 04:50:38" (1/3) ... [2024-11-12 16:50:38,604 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bcb66e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:50:38, skipping insertion in model container [2024-11-12 16:50:38,604 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:50:38" (2/3) ... [2024-11-12 16:50:38,604 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bcb66e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:50:38, skipping insertion in model container [2024-11-12 16:50:38,604 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:50:38" (3/3) ... [2024-11-12 16:50:38,606 INFO L112 eAbstractionObserver]: Analyzing ICFG rec_counter3.c [2024-11-12 16:50:38,622 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 16:50:38,622 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-12 16:50:38,667 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 16:50:38,672 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;@74d39926, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 16:50:38,672 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-12 16:50:38,676 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 24 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-12 16:50:38,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-12 16:50:38,682 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 16:50:38,683 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:50:38,683 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-12 16:50:38,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:50:38,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1089293515, now seen corresponding path program 1 times [2024-11-12 16:50:38,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:50:38,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876783109] [2024-11-12 16:50:38,696 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:50:38,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:50:38,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:38,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:50:38,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:50:38,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876783109] [2024-11-12 16:50:38,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876783109] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:50:38,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:50:38,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 16:50:38,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123389490] [2024-11-12 16:50:38,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:50:38,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 16:50:38,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:50:38,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 16:50:38,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 16:50:38,908 INFO L87 Difference]: Start difference. First operand has 28 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 24 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:50:39,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 16:50:39,018 INFO L93 Difference]: Finished difference Result 65 states and 79 transitions. [2024-11-12 16:50:39,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 16:50:39,021 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-12 16:50:39,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 16:50:39,026 INFO L225 Difference]: With dead ends: 65 [2024-11-12 16:50:39,027 INFO L226 Difference]: Without dead ends: 39 [2024-11-12 16:50:39,030 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-12 16:50:39,035 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 34 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 16:50:39,036 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 100 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 16:50:39,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-11-12 16:50:39,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 34. [2024-11-12 16:50:39,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 24 states have (on average 1.5416666666666667) internal successors, (37), 29 states have internal predecessors, (37), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-12 16:50:39,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2024-11-12 16:50:39,069 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 7 [2024-11-12 16:50:39,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 16:50:39,070 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2024-11-12 16:50:39,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:50:39,070 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2024-11-12 16:50:39,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-12 16:50:39,070 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 16:50:39,071 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:50:39,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 16:50:39,071 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-12 16:50:39,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:50:39,072 INFO L85 PathProgramCache]: Analyzing trace with hash -591639365, now seen corresponding path program 1 times [2024-11-12 16:50:39,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:50:39,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478977912] [2024-11-12 16:50:39,072 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:50:39,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:50:39,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:39,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:50:39,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:50:39,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478977912] [2024-11-12 16:50:39,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478977912] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:50:39,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:50:39,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 16:50:39,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560768425] [2024-11-12 16:50:39,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:50:39,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 16:50:39,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:50:39,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 16:50:39,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 16:50:39,127 INFO L87 Difference]: Start difference. First operand 34 states and 42 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:50:39,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 16:50:39,177 INFO L93 Difference]: Finished difference Result 36 states and 45 transitions. [2024-11-12 16:50:39,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 16:50:39,178 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-12 16:50:39,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 16:50:39,181 INFO L225 Difference]: With dead ends: 36 [2024-11-12 16:50:39,182 INFO L226 Difference]: Without dead ends: 35 [2024-11-12 16:50:39,182 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-12 16:50:39,184 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 31 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 16:50:39,184 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 38 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 16:50:39,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-11-12 16:50:39,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2024-11-12 16:50:39,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 28 states have internal predecessors, (35), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-12 16:50:39,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 40 transitions. [2024-11-12 16:50:39,197 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 40 transitions. Word has length 8 [2024-11-12 16:50:39,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 16:50:39,197 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 40 transitions. [2024-11-12 16:50:39,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:50:39,198 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2024-11-12 16:50:39,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-12 16:50:39,198 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 16:50:39,199 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:50:39,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 16:50:39,199 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-12 16:50:39,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:50:39,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1479083013, now seen corresponding path program 1 times [2024-11-12 16:50:39,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:50:39,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106340426] [2024-11-12 16:50:39,201 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:50:39,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:50:39,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:39,340 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:50:39,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:50:39,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106340426] [2024-11-12 16:50:39,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106340426] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 16:50:39,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [12606042] [2024-11-12 16:50:39,341 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:50:39,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 16:50:39,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 16:50:39,344 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 16:50:39,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-12 16:50:39,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:39,386 INFO L256 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-12 16:50:39,392 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 16:50:39,459 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:50:39,460 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 16:50:39,568 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:50:39,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [12606042] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 16:50:39,569 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 16:50:39,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2024-11-12 16:50:39,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402451620] [2024-11-12 16:50:39,569 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 16:50:39,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-12 16:50:39,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:50:39,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-12 16:50:39,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-12 16:50:39,570 INFO L87 Difference]: Start difference. First operand 33 states and 40 transitions. Second operand has 12 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:50:39,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 16:50:39,646 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2024-11-12 16:50:39,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-12 16:50:39,647 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-12 16:50:39,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 16:50:39,648 INFO L225 Difference]: With dead ends: 39 [2024-11-12 16:50:39,648 INFO L226 Difference]: Without dead ends: 38 [2024-11-12 16:50:39,648 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2024-11-12 16:50:39,649 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 115 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 16:50:39,650 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 64 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 16:50:39,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-11-12 16:50:39,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 32. [2024-11-12 16:50:39,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 27 states have internal predecessors, (34), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-12 16:50:39,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2024-11-12 16:50:39,656 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 12 [2024-11-12 16:50:39,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 16:50:39,656 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2024-11-12 16:50:39,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:50:39,656 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2024-11-12 16:50:39,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-12 16:50:39,657 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 16:50:39,657 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:50:39,671 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-12 16:50:39,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 16:50:39,862 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting recErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-12 16:50:39,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:50:39,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1411454171, now seen corresponding path program 1 times [2024-11-12 16:50:39,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:50:39,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983106961] [2024-11-12 16:50:39,863 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:50:39,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:50:39,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:39,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-12 16:50:39,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:39,915 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-12 16:50:39,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:50:39,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983106961] [2024-11-12 16:50:39,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983106961] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:50:39,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:50:39,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 16:50:39,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663753388] [2024-11-12 16:50:39,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:50:39,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 16:50:39,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:50:39,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 16:50:39,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 16:50:39,920 INFO L87 Difference]: Start difference. First operand 32 states and 39 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-12 16:50:39,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 16:50:39,936 INFO L93 Difference]: Finished difference Result 32 states and 39 transitions. [2024-11-12 16:50:39,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 16:50:39,936 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2024-11-12 16:50:39,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 16:50:39,937 INFO L225 Difference]: With dead ends: 32 [2024-11-12 16:50:39,937 INFO L226 Difference]: Without dead ends: 31 [2024-11-12 16:50:39,938 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 16:50:39,939 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 6 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 16:50:39,940 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 31 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 16:50:39,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-11-12 16:50:39,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2024-11-12 16:50:39,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 26 states have internal predecessors, (32), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-12 16:50:39,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2024-11-12 16:50:39,945 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 37 transitions. Word has length 16 [2024-11-12 16:50:39,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 16:50:39,945 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 37 transitions. [2024-11-12 16:50:39,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-12 16:50:39,945 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2024-11-12 16:50:39,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-12 16:50:39,946 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 16:50:39,946 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:50:39,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 16:50:39,946 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-12 16:50:39,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:50:39,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1411454226, now seen corresponding path program 1 times [2024-11-12 16:50:39,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:50:39,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274298683] [2024-11-12 16:50:39,947 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:50:39,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:50:39,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:39,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-12 16:50:39,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:39,976 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-12 16:50:39,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:50:39,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274298683] [2024-11-12 16:50:39,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274298683] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:50:39,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:50:39,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 16:50:39,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41865080] [2024-11-12 16:50:39,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:50:39,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 16:50:39,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:50:39,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 16:50:39,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 16:50:39,978 INFO L87 Difference]: Start difference. First operand 31 states and 37 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-12 16:50:39,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 16:50:39,987 INFO L93 Difference]: Finished difference Result 31 states and 37 transitions. [2024-11-12 16:50:39,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 16:50:39,987 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2024-11-12 16:50:39,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 16:50:39,988 INFO L225 Difference]: With dead ends: 31 [2024-11-12 16:50:39,988 INFO L226 Difference]: Without dead ends: 30 [2024-11-12 16:50:39,988 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 16:50:39,989 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 1 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 16:50:39,990 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 35 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 16:50:39,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-11-12 16:50:39,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2024-11-12 16:50:39,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 24 states have (on average 1.25) internal successors, (30), 25 states have internal predecessors, (30), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-12 16:50:39,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2024-11-12 16:50:39,995 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 35 transitions. Word has length 16 [2024-11-12 16:50:39,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 16:50:39,995 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 35 transitions. [2024-11-12 16:50:39,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-12 16:50:39,996 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2024-11-12 16:50:39,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-12 16:50:39,996 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 16:50:39,996 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:50:39,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-12 16:50:39,997 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-12 16:50:39,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:50:39,997 INFO L85 PathProgramCache]: Analyzing trace with hash 805406401, now seen corresponding path program 1 times [2024-11-12 16:50:39,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:50:39,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577282117] [2024-11-12 16:50:39,998 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:50:39,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:50:40,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:40,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-12 16:50:40,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:40,034 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-12 16:50:40,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:50:40,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577282117] [2024-11-12 16:50:40,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577282117] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:50:40,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:50:40,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 16:50:40,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565567201] [2024-11-12 16:50:40,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:50:40,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 16:50:40,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:50:40,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 16:50:40,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 16:50:40,041 INFO L87 Difference]: Start difference. First operand 30 states and 35 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-12 16:50:40,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 16:50:40,061 INFO L93 Difference]: Finished difference Result 37 states and 44 transitions. [2024-11-12 16:50:40,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 16:50:40,061 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2024-11-12 16:50:40,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 16:50:40,063 INFO L225 Difference]: With dead ends: 37 [2024-11-12 16:50:40,064 INFO L226 Difference]: Without dead ends: 34 [2024-11-12 16:50:40,064 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 16:50:40,065 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 0 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 16:50:40,066 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 47 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 16:50:40,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-11-12 16:50:40,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2024-11-12 16:50:40,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 28 states have (on average 1.25) internal successors, (35), 29 states have internal predecessors, (35), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-12 16:50:40,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 40 transitions. [2024-11-12 16:50:40,071 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 40 transitions. Word has length 17 [2024-11-12 16:50:40,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 16:50:40,071 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 40 transitions. [2024-11-12 16:50:40,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-12 16:50:40,071 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 40 transitions. [2024-11-12 16:50:40,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-12 16:50:40,072 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 16:50:40,072 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:50:40,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-12 16:50:40,072 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting recErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-12 16:50:40,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:50:40,073 INFO L85 PathProgramCache]: Analyzing trace with hash 805408099, now seen corresponding path program 1 times [2024-11-12 16:50:40,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:50:40,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041131740] [2024-11-12 16:50:40,073 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:50:40,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:50:40,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:40,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-12 16:50:40,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:40,150 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-12 16:50:40,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:50:40,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041131740] [2024-11-12 16:50:40,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041131740] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:50:40,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:50:40,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 16:50:40,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183148951] [2024-11-12 16:50:40,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:50:40,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 16:50:40,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:50:40,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 16:50:40,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 16:50:40,152 INFO L87 Difference]: Start difference. First operand 34 states and 40 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-12 16:50:40,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 16:50:40,170 INFO L93 Difference]: Finished difference Result 60 states and 73 transitions. [2024-11-12 16:50:40,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 16:50:40,171 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2024-11-12 16:50:40,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 16:50:40,172 INFO L225 Difference]: With dead ends: 60 [2024-11-12 16:50:40,172 INFO L226 Difference]: Without dead ends: 38 [2024-11-12 16:50:40,174 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 16:50:40,174 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 0 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 16:50:40,175 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 72 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 16:50:40,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-11-12 16:50:40,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2024-11-12 16:50:40,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 31 states have (on average 1.2258064516129032) internal successors, (38), 32 states have internal predecessors, (38), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-12 16:50:40,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 44 transitions. [2024-11-12 16:50:40,186 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 44 transitions. Word has length 17 [2024-11-12 16:50:40,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 16:50:40,187 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 44 transitions. [2024-11-12 16:50:40,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-12 16:50:40,187 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 44 transitions. [2024-11-12 16:50:40,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-12 16:50:40,188 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 16:50:40,188 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:50:40,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-12 16:50:40,188 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting recErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-12 16:50:40,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:50:40,189 INFO L85 PathProgramCache]: Analyzing trace with hash 842415392, now seen corresponding path program 1 times [2024-11-12 16:50:40,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:50:40,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145569076] [2024-11-12 16:50:40,189 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:50:40,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:50:40,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:40,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-12 16:50:40,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:40,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:50:40,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:40,334 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-12 16:50:40,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:50:40,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145569076] [2024-11-12 16:50:40,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145569076] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 16:50:40,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [989163] [2024-11-12 16:50:40,335 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:50:40,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 16:50:40,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 16:50:40,338 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 16:50:40,338 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-12 16:50:40,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:40,371 INFO L256 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-12 16:50:40,372 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 16:50:40,428 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-12 16:50:40,428 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 16:50:40,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [989163] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:50:40,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 16:50:40,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 12 [2024-11-12 16:50:40,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986972520] [2024-11-12 16:50:40,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:50:40,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 16:50:40,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:50:40,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 16:50:40,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-12 16:50:40,430 INFO L87 Difference]: Start difference. First operand 38 states and 44 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-12 16:50:40,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 16:50:40,452 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2024-11-12 16:50:40,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 16:50:40,453 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2024-11-12 16:50:40,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 16:50:40,454 INFO L225 Difference]: With dead ends: 38 [2024-11-12 16:50:40,454 INFO L226 Difference]: Without dead ends: 37 [2024-11-12 16:50:40,454 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-12 16:50:40,455 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 0 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 16:50:40,455 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 71 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 16:50:40,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-11-12 16:50:40,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2024-11-12 16:50:40,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 31 states have (on average 1.1612903225806452) internal successors, (36), 31 states have internal predecessors, (36), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-12 16:50:40,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 42 transitions. [2024-11-12 16:50:40,460 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 42 transitions. Word has length 28 [2024-11-12 16:50:40,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 16:50:40,461 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 42 transitions. [2024-11-12 16:50:40,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-12 16:50:40,461 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 42 transitions. [2024-11-12 16:50:40,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-12 16:50:40,462 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 16:50:40,462 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:50:40,477 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-12 16:50:40,662 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,SelfDestructingSolverStorable7 [2024-11-12 16:50:40,663 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-12 16:50:40,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:50:40,663 INFO L85 PathProgramCache]: Analyzing trace with hash 903079569, now seen corresponding path program 1 times [2024-11-12 16:50:40,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:50:40,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277644084] [2024-11-12 16:50:40,663 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:50:40,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:50:40,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:40,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-12 16:50:40,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:40,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:50:40,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:40,719 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-12 16:50:40,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:50:40,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277644084] [2024-11-12 16:50:40,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277644084] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 16:50:40,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [385109612] [2024-11-12 16:50:40,720 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:50:40,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 16:50:40,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 16:50:40,722 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 16:50:40,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-12 16:50:40,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:40,764 INFO L256 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-12 16:50:40,765 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 16:50:40,836 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-12 16:50:40,836 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 16:50:41,033 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-12 16:50:41,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [385109612] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 16:50:41,033 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 16:50:41,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 16 [2024-11-12 16:50:41,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807364201] [2024-11-12 16:50:41,033 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 16:50:41,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-12 16:50:41,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:50:41,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-12 16:50:41,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2024-11-12 16:50:41,036 INFO L87 Difference]: Start difference. First operand 37 states and 42 transitions. Second operand has 17 states, 16 states have (on average 2.875) internal successors, (46), 13 states have internal predecessors, (46), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-12 16:50:41,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 16:50:41,210 INFO L93 Difference]: Finished difference Result 110 states and 137 transitions. [2024-11-12 16:50:41,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-12 16:50:41,210 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.875) internal successors, (46), 13 states have internal predecessors, (46), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) Word has length 31 [2024-11-12 16:50:41,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 16:50:41,212 INFO L225 Difference]: With dead ends: 110 [2024-11-12 16:50:41,212 INFO L226 Difference]: Without dead ends: 79 [2024-11-12 16:50:41,213 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=127, Invalid=575, Unknown=0, NotChecked=0, Total=702 [2024-11-12 16:50:41,214 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 7 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 16:50:41,214 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 104 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 16:50:41,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-11-12 16:50:41,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 76. [2024-11-12 16:50:41,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 67 states have (on average 1.208955223880597) internal successors, (81), 67 states have internal predecessors, (81), 3 states have call successors, (3), 2 states have call predecessors, (3), 5 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-12 16:50:41,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 90 transitions. [2024-11-12 16:50:41,230 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 90 transitions. Word has length 31 [2024-11-12 16:50:41,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 16:50:41,230 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 90 transitions. [2024-11-12 16:50:41,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.875) internal successors, (46), 13 states have internal predecessors, (46), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-12 16:50:41,230 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 90 transitions. [2024-11-12 16:50:41,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-12 16:50:41,234 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 16:50:41,234 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1] [2024-11-12 16:50:41,247 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-12 16:50:41,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 16:50:41,437 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-12 16:50:41,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:50:41,438 INFO L85 PathProgramCache]: Analyzing trace with hash 637811316, now seen corresponding path program 2 times [2024-11-12 16:50:41,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:50:41,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764543308] [2024-11-12 16:50:41,438 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:50:41,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:50:41,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:41,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-12 16:50:41,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:41,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:50:41,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:41,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:50:41,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:41,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:50:41,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:41,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:50:41,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:41,932 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 118 proven. 25 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-12 16:50:41,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:50:41,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764543308] [2024-11-12 16:50:41,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764543308] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 16:50:41,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [331033387] [2024-11-12 16:50:41,933 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-12 16:50:41,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 16:50:41,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 16:50:41,935 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 16:50:41,936 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-12 16:50:41,984 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-12 16:50:41,985 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 16:50:41,985 INFO L256 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-12 16:50:41,987 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 16:50:42,106 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 110 proven. 35 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2024-11-12 16:50:42,107 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 16:50:42,694 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 110 proven. 35 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2024-11-12 16:50:42,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [331033387] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 16:50:42,694 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 16:50:42,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 18, 18] total 21 [2024-11-12 16:50:42,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551348440] [2024-11-12 16:50:42,695 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 16:50:42,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-12 16:50:42,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:50:42,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-12 16:50:42,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2024-11-12 16:50:42,696 INFO L87 Difference]: Start difference. First operand 76 states and 90 transitions. Second operand has 21 states, 21 states have (on average 2.8095238095238093) internal successors, (59), 17 states have internal predecessors, (59), 1 states have call successors, (2), 1 states have call predecessors, (2), 6 states have return successors, (6), 6 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-12 16:50:42,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 16:50:42,877 INFO L93 Difference]: Finished difference Result 143 states and 173 transitions. [2024-11-12 16:50:42,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-12 16:50:42,877 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.8095238095238093) internal successors, (59), 17 states have internal predecessors, (59), 1 states have call successors, (2), 1 states have call predecessors, (2), 6 states have return successors, (6), 6 states have call predecessors, (6), 1 states have call successors, (6) Word has length 82 [2024-11-12 16:50:42,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 16:50:42,878 INFO L225 Difference]: With dead ends: 143 [2024-11-12 16:50:42,878 INFO L226 Difference]: Without dead ends: 85 [2024-11-12 16:50:42,879 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 152 SyntacticMatches, 16 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 331 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=583, Unknown=0, NotChecked=0, Total=702 [2024-11-12 16:50:42,879 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 0 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 16:50:42,880 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 231 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 16:50:42,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-11-12 16:50:42,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2024-11-12 16:50:42,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 76 states have (on average 1.0921052631578947) internal successors, (83), 76 states have internal predecessors, (83), 3 states have call successors, (3), 2 states have call predecessors, (3), 5 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-12 16:50:42,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 92 transitions. [2024-11-12 16:50:42,887 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 92 transitions. Word has length 82 [2024-11-12 16:50:42,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 16:50:42,888 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 92 transitions. [2024-11-12 16:50:42,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.8095238095238093) internal successors, (59), 17 states have internal predecessors, (59), 1 states have call successors, (2), 1 states have call predecessors, (2), 6 states have return successors, (6), 6 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-12 16:50:42,888 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 92 transitions. [2024-11-12 16:50:42,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-12 16:50:42,889 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 16:50:42,889 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1] [2024-11-12 16:50:42,905 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-12 16:50:43,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 16:50:43,090 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-12 16:50:43,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:50:43,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1485258322, now seen corresponding path program 3 times [2024-11-12 16:50:43,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:50:43,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931544391] [2024-11-12 16:50:43,091 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:50:43,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:50:43,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:43,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-12 16:50:43,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:43,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:50:43,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:43,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:50:43,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:43,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:50:43,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:43,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:50:43,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:43,469 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 0 proven. 183 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-12 16:50:43,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:50:43,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931544391] [2024-11-12 16:50:43,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931544391] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 16:50:43,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1013156099] [2024-11-12 16:50:43,470 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-12 16:50:43,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 16:50:43,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 16:50:43,472 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 16:50:43,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-12 16:50:43,520 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-12 16:50:43,521 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 16:50:43,522 INFO L256 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-12 16:50:43,524 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 16:50:43,617 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 84 proven. 12 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2024-11-12 16:50:43,617 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 16:50:43,814 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 84 proven. 12 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2024-11-12 16:50:43,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1013156099] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 16:50:43,815 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 16:50:43,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 9, 9] total 31 [2024-11-12 16:50:43,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241222426] [2024-11-12 16:50:43,815 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 16:50:43,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-12 16:50:43,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:50:43,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-12 16:50:43,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=811, Unknown=0, NotChecked=0, Total=992 [2024-11-12 16:50:43,817 INFO L87 Difference]: Start difference. First operand 85 states and 92 transitions. Second operand has 32 states, 31 states have (on average 2.5483870967741935) internal successors, (79), 27 states have internal predecessors, (79), 1 states have call successors, (2), 1 states have call predecessors, (2), 6 states have return successors, (6), 6 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-12 16:50:44,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 16:50:44,152 INFO L93 Difference]: Finished difference Result 152 states and 174 transitions. [2024-11-12 16:50:44,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2024-11-12 16:50:44,152 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 2.5483870967741935) internal successors, (79), 27 states have internal predecessors, (79), 1 states have call successors, (2), 1 states have call predecessors, (2), 6 states have return successors, (6), 6 states have call predecessors, (6), 1 states have call successors, (6) Word has length 88 [2024-11-12 16:50:44,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 16:50:44,153 INFO L225 Difference]: With dead ends: 152 [2024-11-12 16:50:44,153 INFO L226 Difference]: Without dead ends: 131 [2024-11-12 16:50:44,155 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 785 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=631, Invalid=2339, Unknown=0, NotChecked=0, Total=2970 [2024-11-12 16:50:44,155 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 16:50:44,155 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 139 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 16:50:44,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-11-12 16:50:44,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 127. [2024-11-12 16:50:44,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 117 states have (on average 1.1111111111111112) internal successors, (130), 117 states have internal predecessors, (130), 3 states have call successors, (3), 2 states have call predecessors, (3), 6 states have return successors, (7), 7 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-12 16:50:44,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 140 transitions. [2024-11-12 16:50:44,173 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 140 transitions. Word has length 88 [2024-11-12 16:50:44,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 16:50:44,174 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 140 transitions. [2024-11-12 16:50:44,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 2.5483870967741935) internal successors, (79), 27 states have internal predecessors, (79), 1 states have call successors, (2), 1 states have call predecessors, (2), 6 states have return successors, (6), 6 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-12 16:50:44,174 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 140 transitions. [2024-11-12 16:50:44,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-12 16:50:44,176 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 16:50:44,176 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 9, 8, 8, 8, 8, 6, 6, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1] [2024-11-12 16:50:44,190 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-12 16:50:44,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-12 16:50:44,376 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-12 16:50:44,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:50:44,377 INFO L85 PathProgramCache]: Analyzing trace with hash 899953489, now seen corresponding path program 4 times [2024-11-12 16:50:44,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:50:44,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170694789] [2024-11-12 16:50:44,377 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:50:44,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:50:44,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:44,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-12 16:50:44,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:44,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:50:44,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:44,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:50:44,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:44,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:50:44,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:44,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:50:44,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:44,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:50:44,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:44,930 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 497 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2024-11-12 16:50:44,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:50:44,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170694789] [2024-11-12 16:50:44,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170694789] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 16:50:44,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [72148803] [2024-11-12 16:50:44,931 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-12 16:50:44,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 16:50:44,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 16:50:44,932 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 16:50:44,933 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-12 16:50:45,004 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-12 16:50:45,005 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 16:50:45,006 INFO L256 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-12 16:50:45,009 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 16:50:45,160 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 490 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2024-11-12 16:50:45,160 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 16:50:46,336 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 490 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2024-11-12 16:50:46,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [72148803] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 16:50:46,336 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 16:50:46,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19, 19] total 41 [2024-11-12 16:50:46,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012477897] [2024-11-12 16:50:46,336 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 16:50:46,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-11-12 16:50:46,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:50:46,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-11-12 16:50:46,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=322, Invalid=1400, Unknown=0, NotChecked=0, Total=1722 [2024-11-12 16:50:46,338 INFO L87 Difference]: Start difference. First operand 127 states and 140 transitions. Second operand has 42 states, 41 states have (on average 2.6097560975609757) internal successors, (107), 29 states have internal predecessors, (107), 1 states have call successors, (2), 1 states have call predecessors, (2), 13 states have return successors, (13), 13 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-12 16:50:46,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 16:50:46,476 INFO L93 Difference]: Finished difference Result 654 states and 738 transitions. [2024-11-12 16:50:46,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-11-12 16:50:46,477 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 41 states have (on average 2.6097560975609757) internal successors, (107), 29 states have internal predecessors, (107), 1 states have call successors, (2), 1 states have call predecessors, (2), 13 states have return successors, (13), 13 states have call predecessors, (13), 1 states have call successors, (13) Word has length 133 [2024-11-12 16:50:46,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 16:50:46,480 INFO L225 Difference]: With dead ends: 654 [2024-11-12 16:50:46,480 INFO L226 Difference]: Without dead ends: 478 [2024-11-12 16:50:46,485 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 924 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=398, Invalid=1764, Unknown=0, NotChecked=0, Total=2162 [2024-11-12 16:50:46,486 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 3 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 16:50:46,489 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 163 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 16:50:46,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2024-11-12 16:50:46,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 232. [2024-11-12 16:50:46,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 215 states have (on average 1.0930232558139534) internal successors, (235), 215 states have internal predecessors, (235), 3 states have call successors, (3), 2 states have call predecessors, (3), 13 states have return successors, (14), 14 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-12 16:50:46,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 252 transitions. [2024-11-12 16:50:46,511 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 252 transitions. Word has length 133 [2024-11-12 16:50:46,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 16:50:46,512 INFO L471 AbstractCegarLoop]: Abstraction has 232 states and 252 transitions. [2024-11-12 16:50:46,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 41 states have (on average 2.6097560975609757) internal successors, (107), 29 states have internal predecessors, (107), 1 states have call successors, (2), 1 states have call predecessors, (2), 13 states have return successors, (13), 13 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-12 16:50:46,512 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 252 transitions. [2024-11-12 16:50:46,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2024-11-12 16:50:46,515 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 16:50:46,515 INFO L218 NwaCegarLoop]: trace histogram [38, 38, 38, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 1, 1, 1, 1, 1, 1] [2024-11-12 16:50:46,530 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-12 16:50:46,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 16:50:46,716 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-12 16:50:46,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:50:46,717 INFO L85 PathProgramCache]: Analyzing trace with hash 188720571, now seen corresponding path program 5 times [2024-11-12 16:50:46,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:50:46,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372766408] [2024-11-12 16:50:46,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:50:46,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:50:46,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:47,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-12 16:50:47,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:47,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:50:47,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:47,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:50:47,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:47,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:50:47,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:47,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:50:47,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:47,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:50:47,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:47,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:50:47,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:47,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:50:47,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:47,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:50:47,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:47,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:50:47,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:47,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:50:47,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:47,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:50:47,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:47,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:50:47,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:47,695 INFO L134 CoverageAnalysis]: Checked inductivity of 3487 backedges. 1761 proven. 51 refuted. 0 times theorem prover too weak. 1675 trivial. 0 not checked. [2024-11-12 16:50:47,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:50:47,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372766408] [2024-11-12 16:50:47,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372766408] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 16:50:47,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1999846615] [2024-11-12 16:50:47,696 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-12 16:50:47,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 16:50:47,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 16:50:47,698 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 16:50:47,699 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-12 16:50:47,773 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2024-11-12 16:50:47,774 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 16:50:47,775 INFO L256 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-12 16:50:47,778 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 16:50:47,901 INFO L134 CoverageAnalysis]: Checked inductivity of 3487 backedges. 1323 proven. 88 refuted. 0 times theorem prover too weak. 2076 trivial. 0 not checked. [2024-11-12 16:50:47,901 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 16:50:48,922 INFO L134 CoverageAnalysis]: Checked inductivity of 3487 backedges. 1341 proven. 70 refuted. 0 times theorem prover too weak. 2076 trivial. 0 not checked. [2024-11-12 16:50:48,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1999846615] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 16:50:48,922 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 16:50:48,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18, 18] total 27 [2024-11-12 16:50:48,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254618140] [2024-11-12 16:50:48,922 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 16:50:48,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-12 16:50:48,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:50:48,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-12 16:50:48,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=596, Unknown=0, NotChecked=0, Total=702 [2024-11-12 16:50:48,924 INFO L87 Difference]: Start difference. First operand 232 states and 252 transitions. Second operand has 27 states, 27 states have (on average 2.6666666666666665) internal successors, (72), 25 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 4 states have return successors, (4), 4 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-12 16:50:49,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 16:50:49,183 INFO L93 Difference]: Finished difference Result 494 states and 544 transitions. [2024-11-12 16:50:49,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-12 16:50:49,184 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 2.6666666666666665) internal successors, (72), 25 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 4 states have return successors, (4), 4 states have call predecessors, (4), 1 states have call successors, (4) Word has length 263 [2024-11-12 16:50:49,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 16:50:49,186 INFO L225 Difference]: With dead ends: 494 [2024-11-12 16:50:49,186 INFO L226 Difference]: Without dead ends: 301 [2024-11-12 16:50:49,187 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 581 GetRequests, 531 SyntacticMatches, 13 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 397 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=248, Invalid=1234, Unknown=0, NotChecked=0, Total=1482 [2024-11-12 16:50:49,187 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 0 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 16:50:49,188 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 152 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 16:50:49,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2024-11-12 16:50:49,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 290. [2024-11-12 16:50:49,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 270 states have (on average 1.0777777777777777) internal successors, (291), 270 states have internal predecessors, (291), 3 states have call successors, (3), 2 states have call predecessors, (3), 16 states have return successors, (17), 17 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-12 16:50:49,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 311 transitions. [2024-11-12 16:50:49,212 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 311 transitions. Word has length 263 [2024-11-12 16:50:49,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 16:50:49,213 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 311 transitions. [2024-11-12 16:50:49,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 2.6666666666666665) internal successors, (72), 25 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 4 states have return successors, (4), 4 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-12 16:50:49,213 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 311 transitions. [2024-11-12 16:50:49,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2024-11-12 16:50:49,216 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 16:50:49,216 INFO L218 NwaCegarLoop]: trace histogram [45, 45, 45, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 1, 1, 1, 1, 1, 1] [2024-11-12 16:50:49,231 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-12 16:50:49,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 16:50:49,421 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-12 16:50:49,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:50:49,422 INFO L85 PathProgramCache]: Analyzing trace with hash -714526506, now seen corresponding path program 6 times [2024-11-12 16:50:49,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:50:49,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077103758] [2024-11-12 16:50:49,422 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:50:49,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:50:49,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:49,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-12 16:50:49,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:50,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:50:50,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:50,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:50:50,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:50,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:50:50,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:50,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:50:50,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:50,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:50:50,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:50,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:50:50,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:50,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:50:50,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:50,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:50:50,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:50,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:50:50,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:50,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:50:50,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:50,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:50:50,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:50,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:50:50,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:50,374 INFO L134 CoverageAnalysis]: Checked inductivity of 4439 backedges. 1956 proven. 90 refuted. 0 times theorem prover too weak. 2393 trivial. 0 not checked. [2024-11-12 16:50:50,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:50:50,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077103758] [2024-11-12 16:50:50,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077103758] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 16:50:50,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [828208140] [2024-11-12 16:50:50,375 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-12 16:50:50,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 16:50:50,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 16:50:50,377 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 16:50:50,385 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-12 16:50:50,505 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2024-11-12 16:50:50,505 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 16:50:50,506 INFO L256 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-12 16:50:50,509 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 16:50:50,756 INFO L134 CoverageAnalysis]: Checked inductivity of 4439 backedges. 1413 proven. 120 refuted. 0 times theorem prover too weak. 2906 trivial. 0 not checked. [2024-11-12 16:50:50,757 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 16:50:51,329 INFO L134 CoverageAnalysis]: Checked inductivity of 4439 backedges. 1413 proven. 120 refuted. 0 times theorem prover too weak. 2906 trivial. 0 not checked. [2024-11-12 16:50:51,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [828208140] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 16:50:51,329 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 16:50:51,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 14, 14] total 47 [2024-11-12 16:50:51,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122138286] [2024-11-12 16:50:51,329 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 16:50:51,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2024-11-12 16:50:51,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:50:51,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2024-11-12 16:50:51,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=275, Invalid=1887, Unknown=0, NotChecked=0, Total=2162 [2024-11-12 16:50:51,331 INFO L87 Difference]: Start difference. First operand 290 states and 311 transitions. Second operand has 47 states, 47 states have (on average 2.2127659574468086) internal successors, (104), 44 states have internal predecessors, (104), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-12 16:50:52,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 16:50:52,832 INFO L93 Difference]: Finished difference Result 1226 states and 1397 transitions. [2024-11-12 16:50:52,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2024-11-12 16:50:52,832 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 2.2127659574468086) internal successors, (104), 44 states have internal predecessors, (104), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) Word has length 284 [2024-11-12 16:50:52,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 16:50:52,835 INFO L225 Difference]: With dead ends: 1226 [2024-11-12 16:50:52,836 INFO L226 Difference]: Without dead ends: 976 [2024-11-12 16:50:52,839 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 678 GetRequests, 569 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2985 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1477, Invalid=10733, Unknown=0, NotChecked=0, Total=12210 [2024-11-12 16:50:52,840 INFO L435 NwaCegarLoop]: 14 mSDtfsCounter, 6 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 693 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-12 16:50:52,840 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 231 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 693 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-12 16:50:52,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 976 states. [2024-11-12 16:50:52,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 976 to 382. [2024-11-12 16:50:52,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 359 states have (on average 1.0807799442896935) internal successors, (388), 359 states have internal predecessors, (388), 3 states have call successors, (3), 2 states have call predecessors, (3), 19 states have return successors, (20), 20 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-12 16:50:52,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 411 transitions. [2024-11-12 16:50:52,871 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 411 transitions. Word has length 284 [2024-11-12 16:50:52,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 16:50:52,871 INFO L471 AbstractCegarLoop]: Abstraction has 382 states and 411 transitions. [2024-11-12 16:50:52,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 2.2127659574468086) internal successors, (104), 44 states have internal predecessors, (104), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-12 16:50:52,871 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 411 transitions. [2024-11-12 16:50:52,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2024-11-12 16:50:52,873 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 16:50:52,873 INFO L218 NwaCegarLoop]: trace histogram [58, 58, 58, 16, 15, 15, 15, 15, 13, 13, 13, 13, 13, 12, 1, 1, 1, 1, 1, 1] [2024-11-12 16:50:52,886 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-12 16:50:53,077 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,SelfDestructingSolverStorable13 [2024-11-12 16:50:53,078 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-12 16:50:53,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:50:53,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1005785761, now seen corresponding path program 7 times [2024-11-12 16:50:53,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:50:53,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809275] [2024-11-12 16:50:53,078 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:50:53,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:50:53,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:53,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-12 16:50:53,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:53,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:50:53,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:54,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:50:54,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:54,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:50:54,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:54,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:50:54,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:54,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:50:54,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:54,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:50:54,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:54,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:50:54,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:54,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:50:54,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:54,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:50:54,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:54,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:50:54,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:54,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:50:54,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:54,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:50:54,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:54,318 INFO L134 CoverageAnalysis]: Checked inductivity of 6736 backedges. 3720 proven. 138 refuted. 0 times theorem prover too weak. 2878 trivial. 0 not checked. [2024-11-12 16:50:54,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:50:54,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809275] [2024-11-12 16:50:54,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809275] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 16:50:54,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1928081684] [2024-11-12 16:50:54,319 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-12 16:50:54,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 16:50:54,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 16:50:54,320 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 16:50:54,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-12 16:50:54,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:50:54,453 INFO L256 TraceCheckSpWp]: Trace formula consists of 737 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-12 16:50:54,456 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 16:50:54,816 INFO L134 CoverageAnalysis]: Checked inductivity of 6736 backedges. 3356 proven. 311 refuted. 0 times theorem prover too weak. 3069 trivial. 0 not checked. [2024-11-12 16:50:54,816 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 16:50:59,182 INFO L134 CoverageAnalysis]: Checked inductivity of 6736 backedges. 3356 proven. 311 refuted. 0 times theorem prover too weak. 3069 trivial. 0 not checked. [2024-11-12 16:50:59,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1928081684] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 16:50:59,182 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 16:50:59,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 33, 33] total 44 [2024-11-12 16:50:59,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342166759] [2024-11-12 16:50:59,183 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 16:50:59,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2024-11-12 16:50:59,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:50:59,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2024-11-12 16:50:59,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=201, Invalid=1691, Unknown=0, NotChecked=0, Total=1892 [2024-11-12 16:50:59,187 INFO L87 Difference]: Start difference. First operand 382 states and 411 transitions. Second operand has 44 states, 44 states have (on average 2.4318181818181817) internal successors, (107), 37 states have internal predecessors, (107), 1 states have call successors, (2), 1 states have call predecessors, (2), 9 states have return successors, (9), 9 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-12 16:51:00,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 16:51:00,253 INFO L93 Difference]: Finished difference Result 791 states and 853 transitions. [2024-11-12 16:51:00,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2024-11-12 16:51:00,254 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 2.4318181818181817) internal successors, (107), 37 states have internal predecessors, (107), 1 states have call successors, (2), 1 states have call predecessors, (2), 9 states have return successors, (9), 9 states have call predecessors, (9), 1 states have call successors, (9) Word has length 333 [2024-11-12 16:51:00,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 16:51:00,256 INFO L225 Difference]: With dead ends: 791 [2024-11-12 16:51:00,256 INFO L226 Difference]: Without dead ends: 523 [2024-11-12 16:51:00,259 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 760 GetRequests, 644 SyntacticMatches, 31 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3171 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=823, Invalid=6659, Unknown=0, NotChecked=0, Total=7482 [2024-11-12 16:51:00,260 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 1615 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 1623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-12 16:51:00,261 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 469 Invalid, 1623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1615 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-12 16:51:00,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2024-11-12 16:51:00,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 471. [2024-11-12 16:51:00,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 444 states have (on average 1.0698198198198199) internal successors, (475), 444 states have internal predecessors, (475), 3 states have call successors, (3), 2 states have call predecessors, (3), 23 states have return successors, (24), 24 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-12 16:51:00,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 502 transitions. [2024-11-12 16:51:00,298 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 502 transitions. Word has length 333 [2024-11-12 16:51:00,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 16:51:00,299 INFO L471 AbstractCegarLoop]: Abstraction has 471 states and 502 transitions. [2024-11-12 16:51:00,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 2.4318181818181817) internal successors, (107), 37 states have internal predecessors, (107), 1 states have call successors, (2), 1 states have call predecessors, (2), 9 states have return successors, (9), 9 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-12 16:51:00,299 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 502 transitions. [2024-11-12 16:51:00,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2024-11-12 16:51:00,301 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 16:51:00,301 INFO L218 NwaCegarLoop]: trace histogram [63, 63, 63, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 1, 1, 1, 1, 1, 1] [2024-11-12 16:51:00,314 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-12 16:51:00,505 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,SelfDestructingSolverStorable14 [2024-11-12 16:51:00,506 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-12 16:51:00,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:51:00,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1931297766, now seen corresponding path program 8 times [2024-11-12 16:51:00,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:51:00,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643454487] [2024-11-12 16:51:00,507 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:51:00,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:51:00,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:00,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-12 16:51:00,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:01,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:01,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:01,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:01,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:01,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:01,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:01,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:01,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:01,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:01,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:01,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:01,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:01,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:01,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:01,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:01,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:01,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:01,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:01,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:01,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:01,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:01,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:01,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:01,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:01,834 INFO L134 CoverageAnalysis]: Checked inductivity of 7562 backedges. 4322 proven. 195 refuted. 0 times theorem prover too weak. 3045 trivial. 0 not checked. [2024-11-12 16:51:01,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:51:01,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643454487] [2024-11-12 16:51:01,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643454487] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 16:51:01,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [29674117] [2024-11-12 16:51:01,835 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-12 16:51:01,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 16:51:01,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 16:51:01,837 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 16:51:01,840 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-12 16:51:02,035 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-12 16:51:02,035 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 16:51:02,037 INFO L256 TraceCheckSpWp]: Trace formula consists of 754 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-12 16:51:02,040 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 16:51:02,452 INFO L134 CoverageAnalysis]: Checked inductivity of 7562 backedges. 4381 proven. 499 refuted. 0 times theorem prover too weak. 2682 trivial. 0 not checked. [2024-11-12 16:51:02,453 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 16:51:07,847 INFO L134 CoverageAnalysis]: Checked inductivity of 7562 backedges. 4381 proven. 499 refuted. 0 times theorem prover too weak. 2682 trivial. 0 not checked. [2024-11-12 16:51:07,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [29674117] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 16:51:07,847 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 16:51:07,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 38, 38] total 51 [2024-11-12 16:51:07,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647820173] [2024-11-12 16:51:07,847 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 16:51:07,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2024-11-12 16:51:07,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:51:07,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2024-11-12 16:51:07,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=257, Invalid=2293, Unknown=0, NotChecked=0, Total=2550 [2024-11-12 16:51:07,849 INFO L87 Difference]: Start difference. First operand 471 states and 502 transitions. Second operand has 51 states, 51 states have (on average 2.372549019607843) internal successors, (121), 43 states have internal predecessors, (121), 1 states have call successors, (2), 1 states have call predecessors, (2), 10 states have return successors, (10), 10 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-12 16:51:09,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 16:51:09,066 INFO L93 Difference]: Finished difference Result 962 states and 1025 transitions. [2024-11-12 16:51:09,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2024-11-12 16:51:09,066 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 51 states have (on average 2.372549019607843) internal successors, (121), 43 states have internal predecessors, (121), 1 states have call successors, (2), 1 states have call predecessors, (2), 10 states have return successors, (10), 10 states have call predecessors, (10), 1 states have call successors, (10) Word has length 338 [2024-11-12 16:51:09,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 16:51:09,069 INFO L225 Difference]: With dead ends: 962 [2024-11-12 16:51:09,069 INFO L226 Difference]: Without dead ends: 670 [2024-11-12 16:51:09,072 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 789 GetRequests, 646 SyntacticMatches, 36 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4944 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1249, Invalid=10523, Unknown=0, NotChecked=0, Total=11772 [2024-11-12 16:51:09,073 INFO L435 NwaCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 1914 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 1924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-12 16:51:09,073 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 453 Invalid, 1924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1914 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-12 16:51:09,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2024-11-12 16:51:09,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 590. [2024-11-12 16:51:09,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 590 states, 558 states have (on average 1.060931899641577) internal successors, (592), 558 states have internal predecessors, (592), 3 states have call successors, (3), 2 states have call predecessors, (3), 28 states have return successors, (29), 29 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-12 16:51:09,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 624 transitions. [2024-11-12 16:51:09,123 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 624 transitions. Word has length 338 [2024-11-12 16:51:09,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 16:51:09,124 INFO L471 AbstractCegarLoop]: Abstraction has 590 states and 624 transitions. [2024-11-12 16:51:09,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 2.372549019607843) internal successors, (121), 43 states have internal predecessors, (121), 1 states have call successors, (2), 1 states have call predecessors, (2), 10 states have return successors, (10), 10 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-12 16:51:09,124 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 624 transitions. [2024-11-12 16:51:09,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2024-11-12 16:51:09,127 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 16:51:09,127 INFO L218 NwaCegarLoop]: trace histogram [67, 67, 67, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 1, 1, 1, 1, 1, 1] [2024-11-12 16:51:09,141 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-12 16:51:09,327 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,SelfDestructingSolverStorable15 [2024-11-12 16:51:09,328 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-12 16:51:09,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:51:09,328 INFO L85 PathProgramCache]: Analyzing trace with hash -264518770, now seen corresponding path program 9 times [2024-11-12 16:51:09,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:51:09,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481757129] [2024-11-12 16:51:09,328 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:51:09,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:51:09,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:09,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-12 16:51:09,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:10,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:10,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:10,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:10,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:10,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:10,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:10,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:10,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:10,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:10,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:10,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:10,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:10,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:10,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:10,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:10,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:10,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:10,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:10,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:10,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:10,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:10,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:10,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:10,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:10,861 INFO L134 CoverageAnalysis]: Checked inductivity of 8388 backedges. 4863 proven. 261 refuted. 0 times theorem prover too weak. 3264 trivial. 0 not checked. [2024-11-12 16:51:10,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:51:10,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481757129] [2024-11-12 16:51:10,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481757129] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 16:51:10,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1423897431] [2024-11-12 16:51:10,864 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-12 16:51:10,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 16:51:10,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 16:51:10,865 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 16:51:10,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-12 16:51:11,117 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2024-11-12 16:51:11,118 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 16:51:11,119 INFO L256 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-12 16:51:11,122 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 16:51:11,469 INFO L134 CoverageAnalysis]: Checked inductivity of 8388 backedges. 1768 proven. 117 refuted. 0 times theorem prover too weak. 6503 trivial. 0 not checked. [2024-11-12 16:51:11,469 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 16:51:12,165 INFO L134 CoverageAnalysis]: Checked inductivity of 8388 backedges. 1768 proven. 117 refuted. 0 times theorem prover too weak. 6503 trivial. 0 not checked. [2024-11-12 16:51:12,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1423897431] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 16:51:12,166 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 16:51:12,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 21, 21] total 73 [2024-11-12 16:51:12,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279581167] [2024-11-12 16:51:12,166 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 16:51:12,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2024-11-12 16:51:12,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:51:12,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2024-11-12 16:51:12,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=728, Invalid=4528, Unknown=0, NotChecked=0, Total=5256 [2024-11-12 16:51:12,171 INFO L87 Difference]: Start difference. First operand 590 states and 624 transitions. Second operand has 73 states, 73 states have (on average 1.8630136986301369) internal successors, (136), 72 states have internal predecessors, (136), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-12 16:51:13,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 16:51:13,661 INFO L93 Difference]: Finished difference Result 1668 states and 1882 transitions. [2024-11-12 16:51:13,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2024-11-12 16:51:13,662 INFO L78 Accepts]: Start accepts. Automaton has has 73 states, 73 states have (on average 1.8630136986301369) internal successors, (136), 72 states have internal predecessors, (136), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 350 [2024-11-12 16:51:13,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 16:51:13,666 INFO L225 Difference]: With dead ends: 1668 [2024-11-12 16:51:13,666 INFO L226 Difference]: Without dead ends: 1348 [2024-11-12 16:51:13,670 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 811 GetRequests, 688 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3827 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1943, Invalid=13557, Unknown=0, NotChecked=0, Total=15500 [2024-11-12 16:51:13,670 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 5 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 792 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-12 16:51:13,671 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 167 Invalid, 792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 792 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-12 16:51:13,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1348 states. [2024-11-12 16:51:13,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1348 to 805. [2024-11-12 16:51:13,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 805 states, 767 states have (on average 1.0625814863102998) internal successors, (815), 767 states have internal predecessors, (815), 3 states have call successors, (3), 2 states have call predecessors, (3), 34 states have return successors, (35), 35 states have call predecessors, (35), 2 states have call successors, (35) [2024-11-12 16:51:13,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 805 states to 805 states and 853 transitions. [2024-11-12 16:51:13,760 INFO L78 Accepts]: Start accepts. Automaton has 805 states and 853 transitions. Word has length 350 [2024-11-12 16:51:13,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 16:51:13,760 INFO L471 AbstractCegarLoop]: Abstraction has 805 states and 853 transitions. [2024-11-12 16:51:13,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 73 states have (on average 1.8630136986301369) internal successors, (136), 72 states have internal predecessors, (136), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-12 16:51:13,761 INFO L276 IsEmpty]: Start isEmpty. Operand 805 states and 853 transitions. [2024-11-12 16:51:13,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2024-11-12 16:51:13,765 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 16:51:13,765 INFO L218 NwaCegarLoop]: trace histogram [80, 80, 80, 16, 15, 15, 15, 15, 13, 13, 13, 13, 13, 12, 1, 1, 1, 1, 1, 1] [2024-11-12 16:51:13,779 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-12 16:51:13,965 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,SelfDestructingSolverStorable16 [2024-11-12 16:51:13,965 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-12 16:51:13,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:51:13,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1263462439, now seen corresponding path program 10 times [2024-11-12 16:51:13,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:51:13,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146599807] [2024-11-12 16:51:13,966 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:51:13,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:51:14,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:14,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-12 16:51:14,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:14,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:14,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:15,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:15,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:15,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:15,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:15,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:15,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:15,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:15,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:15,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:15,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:15,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:15,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:15,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:15,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:15,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:15,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:15,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:15,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:15,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:15,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:15,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:15,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:15,580 INFO L134 CoverageAnalysis]: Checked inductivity of 11543 backedges. 6995 proven. 336 refuted. 0 times theorem prover too weak. 4212 trivial. 0 not checked. [2024-11-12 16:51:15,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:51:15,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146599807] [2024-11-12 16:51:15,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146599807] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 16:51:15,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2062813690] [2024-11-12 16:51:15,581 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-12 16:51:15,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 16:51:15,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 16:51:15,583 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 16:51:15,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-12 16:51:15,839 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-12 16:51:15,839 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 16:51:15,843 INFO L256 TraceCheckSpWp]: Trace formula consists of 891 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-12 16:51:15,849 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 16:51:16,476 INFO L134 CoverageAnalysis]: Checked inductivity of 11543 backedges. 7605 proven. 1073 refuted. 0 times theorem prover too weak. 2865 trivial. 0 not checked. [2024-11-12 16:51:16,476 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 16:51:24,225 INFO L134 CoverageAnalysis]: Checked inductivity of 11543 backedges. 7605 proven. 1073 refuted. 0 times theorem prover too weak. 2865 trivial. 0 not checked. [2024-11-12 16:51:24,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2062813690] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 16:51:24,226 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 16:51:24,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 48, 48] total 65 [2024-11-12 16:51:24,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869958359] [2024-11-12 16:51:24,226 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 16:51:24,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2024-11-12 16:51:24,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:51:24,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2024-11-12 16:51:24,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=390, Invalid=3770, Unknown=0, NotChecked=0, Total=4160 [2024-11-12 16:51:24,228 INFO L87 Difference]: Start difference. First operand 805 states and 853 transitions. Second operand has 65 states, 65 states have (on average 2.292307692307692) internal successors, (149), 55 states have internal predecessors, (149), 1 states have call successors, (2), 1 states have call predecessors, (2), 12 states have return successors, (12), 12 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-12 16:51:26,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 16:51:26,549 INFO L93 Difference]: Finished difference Result 1556 states and 1644 transitions. [2024-11-12 16:51:26,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2024-11-12 16:51:26,549 INFO L78 Accepts]: Start accepts. Automaton has has 65 states, 65 states have (on average 2.292307692307692) internal successors, (149), 55 states have internal predecessors, (149), 1 states have call successors, (2), 1 states have call predecessors, (2), 12 states have return successors, (12), 12 states have call predecessors, (12), 1 states have call successors, (12) Word has length 399 [2024-11-12 16:51:26,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 16:51:26,554 INFO L225 Difference]: With dead ends: 1556 [2024-11-12 16:51:26,554 INFO L226 Difference]: Without dead ends: 1156 [2024-11-12 16:51:26,558 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 955 GetRequests, 752 SyntacticMatches, 46 SemanticMatches, 157 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10354 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=2540, Invalid=22582, Unknown=0, NotChecked=0, Total=25122 [2024-11-12 16:51:26,559 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 0 mSDsluCounter, 594 mSDsCounter, 0 mSdLazyCounter, 3312 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 3326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 3312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-12 16:51:26,559 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 624 Invalid, 3326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 3312 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-12 16:51:26,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1156 states. [2024-11-12 16:51:26,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1156 to 1002. [2024-11-12 16:51:26,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1002 states, 957 states have (on average 1.0553814002089865) internal successors, (1010), 957 states have internal predecessors, (1010), 3 states have call successors, (3), 2 states have call predecessors, (3), 41 states have return successors, (42), 42 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-12 16:51:26,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1002 states to 1002 states and 1055 transitions. [2024-11-12 16:51:26,735 INFO L78 Accepts]: Start accepts. Automaton has 1002 states and 1055 transitions. Word has length 399 [2024-11-12 16:51:26,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 16:51:26,736 INFO L471 AbstractCegarLoop]: Abstraction has 1002 states and 1055 transitions. [2024-11-12 16:51:26,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 65 states have (on average 2.292307692307692) internal successors, (149), 55 states have internal predecessors, (149), 1 states have call successors, (2), 1 states have call predecessors, (2), 12 states have return successors, (12), 12 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-12 16:51:26,736 INFO L276 IsEmpty]: Start isEmpty. Operand 1002 states and 1055 transitions. [2024-11-12 16:51:26,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2024-11-12 16:51:26,740 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 16:51:26,740 INFO L218 NwaCegarLoop]: trace histogram [82, 82, 82, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 1, 1, 1, 1, 1, 1] [2024-11-12 16:51:26,754 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-12 16:51:26,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-12 16:51:26,940 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-12 16:51:26,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:51:26,941 INFO L85 PathProgramCache]: Analyzing trace with hash -24504735, now seen corresponding path program 11 times [2024-11-12 16:51:26,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:51:26,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291091321] [2024-11-12 16:51:26,941 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:51:26,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:51:26,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:27,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-12 16:51:27,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:27,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:27,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:28,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:28,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:28,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:28,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:28,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:28,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:28,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:28,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:28,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:28,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:28,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:28,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:28,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:28,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:28,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:28,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:28,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:28,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:28,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:28,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:28,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:28,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:28,303 INFO L134 CoverageAnalysis]: Checked inductivity of 11913 backedges. 6823 proven. 420 refuted. 0 times theorem prover too weak. 4670 trivial. 0 not checked. [2024-11-12 16:51:28,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:51:28,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291091321] [2024-11-12 16:51:28,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291091321] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 16:51:28,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [30828729] [2024-11-12 16:51:28,303 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-12 16:51:28,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 16:51:28,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 16:51:28,305 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 16:51:28,305 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-12 16:51:28,638 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 18 check-sat command(s) [2024-11-12 16:51:28,638 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 16:51:28,641 INFO L256 TraceCheckSpWp]: Trace formula consists of 831 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-12 16:51:28,644 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 16:51:29,177 INFO L134 CoverageAnalysis]: Checked inductivity of 11913 backedges. 8269 proven. 1615 refuted. 0 times theorem prover too weak. 2029 trivial. 0 not checked. [2024-11-12 16:51:29,177 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 16:51:34,378 INFO L134 CoverageAnalysis]: Checked inductivity of 11913 backedges. 8455 proven. 1429 refuted. 0 times theorem prover too weak. 2029 trivial. 0 not checked. [2024-11-12 16:51:34,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [30828729] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 16:51:34,378 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 16:51:34,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 48, 48] total 69 [2024-11-12 16:51:34,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447809800] [2024-11-12 16:51:34,378 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 16:51:34,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2024-11-12 16:51:34,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:51:34,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2024-11-12 16:51:34,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=463, Invalid=4229, Unknown=0, NotChecked=0, Total=4692 [2024-11-12 16:51:34,380 INFO L87 Difference]: Start difference. First operand 1002 states and 1055 transitions. Second operand has 69 states, 69 states have (on average 2.260869565217391) internal successors, (156), 61 states have internal predecessors, (156), 1 states have call successors, (2), 1 states have call predecessors, (2), 10 states have return successors, (10), 10 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-12 16:51:37,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 16:51:37,064 INFO L93 Difference]: Finished difference Result 1874 states and 1967 transitions. [2024-11-12 16:51:37,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 139 states. [2024-11-12 16:51:37,064 INFO L78 Accepts]: Start accepts. Automaton has has 69 states, 69 states have (on average 2.260869565217391) internal successors, (156), 61 states have internal predecessors, (156), 1 states have call successors, (2), 1 states have call predecessors, (2), 10 states have return successors, (10), 10 states have call predecessors, (10), 1 states have call successors, (10) Word has length 395 [2024-11-12 16:51:37,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 16:51:37,069 INFO L225 Difference]: With dead ends: 1874 [2024-11-12 16:51:37,069 INFO L226 Difference]: Without dead ends: 1450 [2024-11-12 16:51:37,073 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 964 GetRequests, 746 SyntacticMatches, 43 SemanticMatches, 175 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11555 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=3488, Invalid=27664, Unknown=0, NotChecked=0, Total=31152 [2024-11-12 16:51:37,073 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 4029 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 4043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 4029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-12 16:51:37,073 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 515 Invalid, 4043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 4029 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-12 16:51:37,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1450 states. [2024-11-12 16:51:37,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1450 to 1250. [2024-11-12 16:51:37,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 1197 states have (on average 1.050125313283208) internal successors, (1257), 1197 states have internal predecessors, (1257), 3 states have call successors, (3), 2 states have call predecessors, (3), 49 states have return successors, (50), 50 states have call predecessors, (50), 2 states have call successors, (50) [2024-11-12 16:51:37,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1310 transitions. [2024-11-12 16:51:37,232 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1310 transitions. Word has length 395 [2024-11-12 16:51:37,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 16:51:37,232 INFO L471 AbstractCegarLoop]: Abstraction has 1250 states and 1310 transitions. [2024-11-12 16:51:37,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 69 states, 69 states have (on average 2.260869565217391) internal successors, (156), 61 states have internal predecessors, (156), 1 states have call successors, (2), 1 states have call predecessors, (2), 10 states have return successors, (10), 10 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-12 16:51:37,233 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1310 transitions. [2024-11-12 16:51:37,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2024-11-12 16:51:37,237 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 16:51:37,237 INFO L218 NwaCegarLoop]: trace histogram [84, 84, 84, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 1, 1, 1, 1, 1, 1] [2024-11-12 16:51:37,255 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-12 16:51:37,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 16:51:37,438 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-12 16:51:37,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:51:37,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1830676325, now seen corresponding path program 12 times [2024-11-12 16:51:37,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:51:37,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255533169] [2024-11-12 16:51:37,438 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:51:37,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:51:37,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:38,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-12 16:51:38,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:38,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:38,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:39,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:39,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:39,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:39,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:39,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:39,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:40,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:40,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:40,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:40,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:40,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:40,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:40,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:40,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:40,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:40,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:40,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:40,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:40,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:40,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:40,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 16:51:40,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:51:40,641 INFO L134 CoverageAnalysis]: Checked inductivity of 12434 backedges. 9020 proven. 1914 refuted. 0 times theorem prover too weak. 1500 trivial. 0 not checked. [2024-11-12 16:51:40,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:51:40,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255533169] [2024-11-12 16:51:40,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255533169] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 16:51:40,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [394042572] [2024-11-12 16:51:40,641 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-12 16:51:40,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 16:51:40,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 16:51:40,642 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 16:51:40,643 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-12 16:51:41,044 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 19 check-sat command(s) [2024-11-12 16:51:41,044 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 16:51:41,047 INFO L256 TraceCheckSpWp]: Trace formula consists of 829 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-12 16:51:41,051 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 16:51:42,041 INFO L134 CoverageAnalysis]: Checked inductivity of 12434 backedges. 582 proven. 10201 refuted. 0 times theorem prover too weak. 1651 trivial. 0 not checked. [2024-11-12 16:51:42,042 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 16:51:49,771 INFO L134 CoverageAnalysis]: Checked inductivity of 12434 backedges. 582 proven. 10201 refuted. 0 times theorem prover too weak. 1651 trivial. 0 not checked. [2024-11-12 16:51:49,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [394042572] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 16:51:49,771 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 16:51:49,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 37, 37] total 130 [2024-11-12 16:51:49,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82336075] [2024-11-12 16:51:49,772 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 16:51:49,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2024-11-12 16:51:49,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:51:49,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2024-11-12 16:51:49,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1345, Invalid=15425, Unknown=0, NotChecked=0, Total=16770 [2024-11-12 16:51:49,775 INFO L87 Difference]: Start difference. First operand 1250 states and 1310 transitions. Second operand has 130 states, 130 states have (on average 2.4923076923076923) internal successors, (324), 98 states have internal predecessors, (324), 1 states have call successors, (2), 1 states have call predecessors, (2), 34 states have return successors, (34), 34 states have call predecessors, (34), 1 states have call successors, (34)