./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound50.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7aff0c23635f1e1acd85672a1024d6cb6d0af57cad0028c56f5d301198b4eae6 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 20:59:48,137 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 20:59:48,219 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-11 20:59:48,225 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 20:59:48,225 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 20:59:48,261 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 20:59:48,261 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 20:59:48,261 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 20:59:48,262 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 20:59:48,262 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 20:59:48,262 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 20:59:48,263 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 20:59:48,263 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 20:59:48,264 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 20:59:48,264 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 20:59:48,264 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 20:59:48,264 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 20:59:48,265 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 20:59:48,265 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 20:59:48,265 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 20:59:48,266 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 20:59:48,266 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 20:59:48,266 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 20:59:48,267 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 20:59:48,267 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 20:59:48,267 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-11 20:59:48,267 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 20:59:48,268 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 20:59:48,268 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 20:59:48,268 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 20:59:48,269 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 20:59:48,269 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 20:59:48,269 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 20:59:48,269 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 20:59:48,270 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 20:59:48,270 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 20:59:48,270 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 20:59:48,270 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 20:59:48,271 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 20:59:48,271 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 20:59:48,271 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 20:59:48,272 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 20:59:48,272 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 20:59:48,272 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 20:59:48,272 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7aff0c23635f1e1acd85672a1024d6cb6d0af57cad0028c56f5d301198b4eae6 [2024-10-11 20:59:48,525 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 20:59:48,550 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 20:59:48,553 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 20:59:48,554 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 20:59:48,554 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 20:59:48,555 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound50.c [2024-10-11 20:59:49,921 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 20:59:50,105 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 20:59:50,106 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound50.c [2024-10-11 20:59:50,113 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/04dd7349b/997a2685cd4849ec8973a1274f81b0c2/FLAGf4803472b [2024-10-11 20:59:50,503 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/04dd7349b/997a2685cd4849ec8973a1274f81b0c2 [2024-10-11 20:59:50,506 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 20:59:50,507 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 20:59:50,508 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 20:59:50,508 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 20:59:50,513 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 20:59:50,513 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 08:59:50" (1/1) ... [2024-10-11 20:59:50,514 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2064ae9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:59:50, skipping insertion in model container [2024-10-11 20:59:50,514 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 08:59:50" (1/1) ... [2024-10-11 20:59:50,533 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 20:59:50,739 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 20:59:50,753 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 20:59:50,774 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 20:59:50,803 INFO L204 MainTranslator]: Completed translation [2024-10-11 20:59:50,804 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:59:50 WrapperNode [2024-10-11 20:59:50,804 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 20:59:50,807 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 20:59:50,807 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 20:59:50,807 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 20:59:50,814 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:59:50" (1/1) ... [2024-10-11 20:59:50,820 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:59:50" (1/1) ... [2024-10-11 20:59:50,835 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 76 [2024-10-11 20:59:50,836 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 20:59:50,836 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 20:59:50,836 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 20:59:50,836 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 20:59:50,847 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:59:50" (1/1) ... [2024-10-11 20:59:50,847 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:59:50" (1/1) ... [2024-10-11 20:59:50,854 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:59:50" (1/1) ... [2024-10-11 20:59:50,868 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-11 20:59:50,868 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:59:50" (1/1) ... [2024-10-11 20:59:50,869 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:59:50" (1/1) ... [2024-10-11 20:59:50,871 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:59:50" (1/1) ... [2024-10-11 20:59:50,876 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:59:50" (1/1) ... [2024-10-11 20:59:50,876 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:59:50" (1/1) ... [2024-10-11 20:59:50,880 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:59:50" (1/1) ... [2024-10-11 20:59:50,881 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 20:59:50,882 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 20:59:50,882 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 20:59:50,883 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 20:59:50,883 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:59:50" (1/1) ... [2024-10-11 20:59:50,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 20:59:50,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:59:50,912 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 20:59:50,914 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 20:59:50,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 20:59:50,954 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-11 20:59:50,954 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-11 20:59:50,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 20:59:50,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 20:59:50,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 20:59:50,954 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-11 20:59:50,954 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-11 20:59:51,006 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 20:59:51,009 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 20:59:51,188 INFO L? ?]: Removed 47 outVars from TransFormulas that were not future-live. [2024-10-11 20:59:51,189 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 20:59:51,232 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 20:59:51,234 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-11 20:59:51,234 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 08:59:51 BoogieIcfgContainer [2024-10-11 20:59:51,234 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 20:59:51,238 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 20:59:51,238 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 20:59:51,242 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 20:59:51,243 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 08:59:50" (1/3) ... [2024-10-11 20:59:51,243 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f0a6f78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 08:59:51, skipping insertion in model container [2024-10-11 20:59:51,244 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:59:50" (2/3) ... [2024-10-11 20:59:51,244 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f0a6f78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 08:59:51, skipping insertion in model container [2024-10-11 20:59:51,244 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 08:59:51" (3/3) ... [2024-10-11 20:59:51,245 INFO L112 eAbstractionObserver]: Analyzing ICFG mannadiv_unwindbound50.c [2024-10-11 20:59:51,262 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 20:59:51,262 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2024-10-11 20:59:51,333 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 20:59:51,341 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;@6b1aeb2e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 20:59:51,342 INFO L334 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2024-10-11 20:59:51,347 INFO L276 IsEmpty]: Start isEmpty. Operand has 64 states, 35 states have (on average 1.8) internal successors, (63), 57 states have internal predecessors, (63), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-11 20:59:51,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-11 20:59:51,354 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:59:51,354 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:59:51,355 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-11 20:59:51,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:59:51,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1616721719, now seen corresponding path program 1 times [2024-10-11 20:59:51,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:59:51,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306243146] [2024-10-11 20:59:51,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:59:51,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:59:51,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:59:51,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 20:59:51,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:59:51,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 20:59:51,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:59:51,539 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 20:59:51,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:59:51,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306243146] [2024-10-11 20:59:51,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306243146] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:59:51,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:59:51,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 20:59:51,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127691700] [2024-10-11 20:59:51,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:59:51,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 20:59:51,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:59:51,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 20:59:51,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 20:59:51,569 INFO L87 Difference]: Start difference. First operand has 64 states, 35 states have (on average 1.8) internal successors, (63), 57 states have internal predecessors, (63), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-11 20:59:51,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:59:51,604 INFO L93 Difference]: Finished difference Result 126 states and 143 transitions. [2024-10-11 20:59:51,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 20:59:51,606 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 14 [2024-10-11 20:59:51,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:59:51,611 INFO L225 Difference]: With dead ends: 126 [2024-10-11 20:59:51,611 INFO L226 Difference]: Without dead ends: 61 [2024-10-11 20:59:51,614 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 20:59:51,617 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 20:59:51,618 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 20:59:51,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-10-11 20:59:51,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2024-10-11 20:59:51,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 34 states have (on average 1.7058823529411764) internal successors, (58), 55 states have internal predecessors, (58), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-11 20:59:51,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 64 transitions. [2024-10-11 20:59:51,651 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 64 transitions. Word has length 14 [2024-10-11 20:59:51,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:59:51,651 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 64 transitions. [2024-10-11 20:59:51,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-11 20:59:51,652 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 64 transitions. [2024-10-11 20:59:51,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-11 20:59:51,653 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:59:51,653 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:59:51,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 20:59:51,654 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-11 20:59:51,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:59:51,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1919924458, now seen corresponding path program 1 times [2024-10-11 20:59:51,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:59:51,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816674003] [2024-10-11 20:59:51,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:59:51,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:59:51,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:59:51,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 20:59:51,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:59:51,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 20:59:51,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:59:51,820 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 20:59:51,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:59:51,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816674003] [2024-10-11 20:59:51,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816674003] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:59:51,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:59:51,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 20:59:51,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945750623] [2024-10-11 20:59:51,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:59:51,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 20:59:51,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:59:51,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 20:59:51,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 20:59:51,824 INFO L87 Difference]: Start difference. First operand 61 states and 64 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 20:59:51,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:59:51,899 INFO L93 Difference]: Finished difference Result 75 states and 78 transitions. [2024-10-11 20:59:51,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 20:59:51,902 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2024-10-11 20:59:51,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:59:51,903 INFO L225 Difference]: With dead ends: 75 [2024-10-11 20:59:51,903 INFO L226 Difference]: Without dead ends: 65 [2024-10-11 20:59:51,904 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 20:59:51,905 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 9 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 20:59:51,906 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 167 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 20:59:51,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2024-10-11 20:59:51,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2024-10-11 20:59:51,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 38 states have (on average 1.631578947368421) internal successors, (62), 59 states have internal predecessors, (62), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-11 20:59:51,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 68 transitions. [2024-10-11 20:59:51,915 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 68 transitions. Word has length 14 [2024-10-11 20:59:51,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:59:51,917 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 68 transitions. [2024-10-11 20:59:51,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 20:59:51,917 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 68 transitions. [2024-10-11 20:59:51,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-10-11 20:59:51,918 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:59:51,918 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:59:51,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 20:59:51,919 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-11 20:59:51,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:59:51,920 INFO L85 PathProgramCache]: Analyzing trace with hash -390003592, now seen corresponding path program 1 times [2024-10-11 20:59:51,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:59:51,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919241738] [2024-10-11 20:59:51,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:59:51,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:59:51,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 20:59:51,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [329895102] [2024-10-11 20:59:51,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:59:51,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:59:51,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:59:51,944 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:59:51,945 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 20:59:52,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:59:52,050 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 20:59:52,057 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:59:52,120 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 20:59:52,122 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 20:59:52,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:59:52,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919241738] [2024-10-11 20:59:52,123 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 20:59:52,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [329895102] [2024-10-11 20:59:52,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [329895102] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:59:52,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:59:52,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 20:59:52,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908416267] [2024-10-11 20:59:52,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:59:52,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 20:59:52,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:59:52,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 20:59:52,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 20:59:52,132 INFO L87 Difference]: Start difference. First operand 65 states and 68 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 20:59:52,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:59:52,229 INFO L93 Difference]: Finished difference Result 104 states and 116 transitions. [2024-10-11 20:59:52,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 20:59:52,230 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2024-10-11 20:59:52,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:59:52,231 INFO L225 Difference]: With dead ends: 104 [2024-10-11 20:59:52,233 INFO L226 Difference]: Without dead ends: 98 [2024-10-11 20:59:52,233 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 20:59:52,235 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 29 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 20:59:52,235 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 85 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 20:59:52,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-10-11 20:59:52,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 88. [2024-10-11 20:59:52,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 60 states have (on average 1.65) internal successors, (99), 81 states have internal predecessors, (99), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-11 20:59:52,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 107 transitions. [2024-10-11 20:59:52,253 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 107 transitions. Word has length 17 [2024-10-11 20:59:52,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:59:52,254 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 107 transitions. [2024-10-11 20:59:52,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 20:59:52,254 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 107 transitions. [2024-10-11 20:59:52,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-10-11 20:59:52,254 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:59:52,255 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:59:52,274 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-11 20:59:52,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:59:52,456 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-11 20:59:52,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:59:52,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1131295462, now seen corresponding path program 1 times [2024-10-11 20:59:52,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:59:52,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359336413] [2024-10-11 20:59:52,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:59:52,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:59:52,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:59:52,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 20:59:52,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:59:52,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 20:59:52,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:59:52,548 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 20:59:52,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:59:52,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359336413] [2024-10-11 20:59:52,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359336413] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:59:52,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:59:52,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 20:59:52,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425433562] [2024-10-11 20:59:52,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:59:52,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 20:59:52,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:59:52,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 20:59:52,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 20:59:52,555 INFO L87 Difference]: Start difference. First operand 88 states and 107 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 20:59:52,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:59:52,784 INFO L93 Difference]: Finished difference Result 138 states and 175 transitions. [2024-10-11 20:59:52,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 20:59:52,784 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2024-10-11 20:59:52,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:59:52,786 INFO L225 Difference]: With dead ends: 138 [2024-10-11 20:59:52,786 INFO L226 Difference]: Without dead ends: 131 [2024-10-11 20:59:52,787 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 20:59:52,788 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 28 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 20:59:52,788 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 117 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 20:59:52,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-10-11 20:59:52,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 124. [2024-10-11 20:59:52,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 94 states have (on average 1.5957446808510638) internal successors, (150), 115 states have internal predecessors, (150), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-11 20:59:52,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 162 transitions. [2024-10-11 20:59:52,802 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 162 transitions. Word has length 19 [2024-10-11 20:59:52,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:59:52,802 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 162 transitions. [2024-10-11 20:59:52,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 20:59:52,802 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 162 transitions. [2024-10-11 20:59:52,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-10-11 20:59:52,803 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:59:52,803 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:59:52,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 20:59:52,804 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-11 20:59:52,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:59:52,804 INFO L85 PathProgramCache]: Analyzing trace with hash -710420897, now seen corresponding path program 1 times [2024-10-11 20:59:52,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:59:52,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110827566] [2024-10-11 20:59:52,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:59:52,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:59:52,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:59:52,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 20:59:52,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:59:52,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 20:59:52,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:59:52,928 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 20:59:52,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:59:52,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110827566] [2024-10-11 20:59:52,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110827566] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:59:52,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:59:52,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 20:59:52,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891592912] [2024-10-11 20:59:52,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:59:52,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 20:59:52,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:59:52,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 20:59:52,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 20:59:52,933 INFO L87 Difference]: Start difference. First operand 124 states and 162 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, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 20:59:53,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:59:53,143 INFO L93 Difference]: Finished difference Result 135 states and 165 transitions. [2024-10-11 20:59:53,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 20:59:53,143 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, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2024-10-11 20:59:53,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:59:53,145 INFO L225 Difference]: With dead ends: 135 [2024-10-11 20:59:53,145 INFO L226 Difference]: Without dead ends: 126 [2024-10-11 20:59:53,145 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 20:59:53,146 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 42 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 20:59:53,146 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 96 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 20:59:53,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2024-10-11 20:59:53,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 120. [2024-10-11 20:59:53,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 90 states have (on average 1.5666666666666667) internal successors, (141), 111 states have internal predecessors, (141), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-11 20:59:53,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 153 transitions. [2024-10-11 20:59:53,157 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 153 transitions. Word has length 20 [2024-10-11 20:59:53,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:59:53,157 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 153 transitions. [2024-10-11 20:59:53,157 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, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 20:59:53,157 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 153 transitions. [2024-10-11 20:59:53,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-10-11 20:59:53,160 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:59:53,160 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:59:53,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 20:59:53,160 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-11 20:59:53,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:59:53,161 INFO L85 PathProgramCache]: Analyzing trace with hash -548211268, now seen corresponding path program 1 times [2024-10-11 20:59:53,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:59:53,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662610150] [2024-10-11 20:59:53,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:59:53,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:59:53,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:59:53,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 20:59:53,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:59:53,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 20:59:53,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:59:53,304 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 20:59:53,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:59:53,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662610150] [2024-10-11 20:59:53,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662610150] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:59:53,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1069879748] [2024-10-11 20:59:53,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:59:53,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:59:53,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:59:53,307 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:59:53,311 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 20:59:53,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:59:53,348 INFO L255 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 20:59:53,349 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:59:53,492 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 20:59:53,493 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 20:59:53,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1069879748] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:59:53,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 20:59:53,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-10-11 20:59:53,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478740689] [2024-10-11 20:59:53,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:59:53,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 20:59:53,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:59:53,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 20:59:53,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-11 20:59:53,497 INFO L87 Difference]: Start difference. First operand 120 states and 153 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 20:59:53,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:59:53,647 INFO L93 Difference]: Finished difference Result 123 states and 157 transitions. [2024-10-11 20:59:53,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 20:59:53,648 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2024-10-11 20:59:53,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:59:53,649 INFO L225 Difference]: With dead ends: 123 [2024-10-11 20:59:53,649 INFO L226 Difference]: Without dead ends: 122 [2024-10-11 20:59:53,649 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-10-11 20:59:53,650 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 81 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 20:59:53,650 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 72 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 20:59:53,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-10-11 20:59:53,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 120. [2024-10-11 20:59:53,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 90 states have (on average 1.5555555555555556) internal successors, (140), 111 states have internal predecessors, (140), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-11 20:59:53,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 152 transitions. [2024-10-11 20:59:53,660 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 152 transitions. Word has length 21 [2024-10-11 20:59:53,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:59:53,661 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 152 transitions. [2024-10-11 20:59:53,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 20:59:53,661 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 152 transitions. [2024-10-11 20:59:53,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-10-11 20:59:53,662 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:59:53,662 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:59:53,678 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-11 20:59:53,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:59:53,863 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-11 20:59:53,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:59:53,864 INFO L85 PathProgramCache]: Analyzing trace with hash 185319937, now seen corresponding path program 1 times [2024-10-11 20:59:53,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:59:53,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459949734] [2024-10-11 20:59:53,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:59:53,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:59:53,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 20:59:53,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [388896735] [2024-10-11 20:59:53,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:59:53,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:59:53,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:59:53,877 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:59:53,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 20:59:53,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:59:53,914 INFO L255 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 20:59:53,915 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:59:53,997 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 20:59:53,997 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 20:59:53,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:59:53,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459949734] [2024-10-11 20:59:53,998 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 20:59:53,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [388896735] [2024-10-11 20:59:53,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [388896735] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:59:53,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:59:53,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 20:59:53,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464777408] [2024-10-11 20:59:53,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:59:53,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 20:59:53,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:59:54,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 20:59:54,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 20:59:54,000 INFO L87 Difference]: Start difference. First operand 120 states and 152 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 20:59:54,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:59:54,142 INFO L93 Difference]: Finished difference Result 121 states and 152 transitions. [2024-10-11 20:59:54,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 20:59:54,142 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2024-10-11 20:59:54,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:59:54,143 INFO L225 Difference]: With dead ends: 121 [2024-10-11 20:59:54,143 INFO L226 Difference]: Without dead ends: 120 [2024-10-11 20:59:54,144 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 20:59:54,144 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 74 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 20:59:54,145 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 77 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 20:59:54,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-10-11 20:59:54,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2024-10-11 20:59:54,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 90 states have (on average 1.5444444444444445) internal successors, (139), 111 states have internal predecessors, (139), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-11 20:59:54,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 151 transitions. [2024-10-11 20:59:54,154 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 151 transitions. Word has length 22 [2024-10-11 20:59:54,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:59:54,154 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 151 transitions. [2024-10-11 20:59:54,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 20:59:54,154 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 151 transitions. [2024-10-11 20:59:54,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-10-11 20:59:54,155 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:59:54,155 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:59:54,172 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-11 20:59:54,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:59:54,356 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-11 20:59:54,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:59:54,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1256432811, now seen corresponding path program 1 times [2024-10-11 20:59:54,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:59:54,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011077261] [2024-10-11 20:59:54,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:59:54,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:59:54,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:59:54,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 20:59:54,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:59:54,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 20:59:54,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:59:54,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 20:59:54,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:59:54,470 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 20:59:54,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:59:54,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011077261] [2024-10-11 20:59:54,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011077261] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:59:54,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1747452774] [2024-10-11 20:59:54,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:59:54,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:59:54,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:59:54,473 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:59:54,474 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 20:59:54,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:59:54,518 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-11 20:59:54,519 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:59:54,567 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 20:59:54,567 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:59:54,671 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 20:59:54,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1747452774] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:59:54,672 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:59:54,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-10-11 20:59:54,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092022580] [2024-10-11 20:59:54,673 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:59:54,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 20:59:54,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:59:54,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 20:59:54,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-10-11 20:59:54,677 INFO L87 Difference]: Start difference. First operand 120 states and 151 transitions. Second operand has 9 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-10-11 20:59:54,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:59:54,791 INFO L93 Difference]: Finished difference Result 191 states and 238 transitions. [2024-10-11 20:59:54,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 20:59:54,792 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 34 [2024-10-11 20:59:54,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:59:54,793 INFO L225 Difference]: With dead ends: 191 [2024-10-11 20:59:54,793 INFO L226 Difference]: Without dead ends: 189 [2024-10-11 20:59:54,794 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-10-11 20:59:54,794 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 150 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 20:59:54,794 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 239 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 20:59:54,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-10-11 20:59:54,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 167. [2024-10-11 20:59:54,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 135 states have (on average 1.548148148148148) internal successors, (209), 156 states have internal predecessors, (209), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-11 20:59:54,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 225 transitions. [2024-10-11 20:59:54,806 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 225 transitions. Word has length 34 [2024-10-11 20:59:54,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:59:54,806 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 225 transitions. [2024-10-11 20:59:54,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-10-11 20:59:54,806 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 225 transitions. [2024-10-11 20:59:54,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-10-11 20:59:54,807 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:59:54,807 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:59:54,824 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-11 20:59:55,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-10-11 20:59:55,008 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-11 20:59:55,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:59:55,009 INFO L85 PathProgramCache]: Analyzing trace with hash -294711385, now seen corresponding path program 1 times [2024-10-11 20:59:55,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:59:55,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487556726] [2024-10-11 20:59:55,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:59:55,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:59:55,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:59:55,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 20:59:55,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:59:55,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 20:59:55,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:59:55,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 20:59:55,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:59:55,058 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 20:59:55,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:59:55,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487556726] [2024-10-11 20:59:55,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487556726] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:59:55,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:59:55,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 20:59:55,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421998680] [2024-10-11 20:59:55,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:59:55,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 20:59:55,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:59:55,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 20:59:55,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 20:59:55,060 INFO L87 Difference]: Start difference. First operand 167 states and 225 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-11 20:59:55,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:59:55,095 INFO L93 Difference]: Finished difference Result 177 states and 234 transitions. [2024-10-11 20:59:55,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 20:59:55,096 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 35 [2024-10-11 20:59:55,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:59:55,097 INFO L225 Difference]: With dead ends: 177 [2024-10-11 20:59:55,097 INFO L226 Difference]: Without dead ends: 175 [2024-10-11 20:59:55,098 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 20:59:55,098 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 80 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 20:59:55,099 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 75 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 20:59:55,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-10-11 20:59:55,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 165. [2024-10-11 20:59:55,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 135 states have (on average 1.511111111111111) internal successors, (204), 154 states have internal predecessors, (204), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-11 20:59:55,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 220 transitions. [2024-10-11 20:59:55,109 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 220 transitions. Word has length 35 [2024-10-11 20:59:55,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:59:55,110 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 220 transitions. [2024-10-11 20:59:55,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-11 20:59:55,110 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 220 transitions. [2024-10-11 20:59:55,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-10-11 20:59:55,111 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:59:55,111 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:59:55,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 20:59:55,111 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-11 20:59:55,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:59:55,112 INFO L85 PathProgramCache]: Analyzing trace with hash 250201833, now seen corresponding path program 1 times [2024-10-11 20:59:55,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:59:55,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689465402] [2024-10-11 20:59:55,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:59:55,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:59:55,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:59:55,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 20:59:55,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:59:55,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 20:59:55,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:59:55,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 20:59:55,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:59:55,202 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 20:59:55,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:59:55,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689465402] [2024-10-11 20:59:55,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689465402] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:59:55,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2042963721] [2024-10-11 20:59:55,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:59:55,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:59:55,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:59:55,204 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:59:55,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-11 20:59:55,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:59:55,247 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 20:59:55,257 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:59:55,314 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 20:59:55,314 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 20:59:55,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2042963721] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:59:55,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 20:59:55,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-10-11 20:59:55,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921550384] [2024-10-11 20:59:55,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:59:55,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 20:59:55,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:59:55,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 20:59:55,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-11 20:59:55,316 INFO L87 Difference]: Start difference. First operand 165 states and 220 transitions. Second operand has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-11 20:59:55,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:59:55,348 INFO L93 Difference]: Finished difference Result 165 states and 220 transitions. [2024-10-11 20:59:55,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 20:59:55,348 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 37 [2024-10-11 20:59:55,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:59:55,349 INFO L225 Difference]: With dead ends: 165 [2024-10-11 20:59:55,349 INFO L226 Difference]: Without dead ends: 164 [2024-10-11 20:59:55,349 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-10-11 20:59:55,350 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 42 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 20:59:55,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 108 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 20:59:55,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2024-10-11 20:59:55,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2024-10-11 20:59:55,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 135 states have (on average 1.474074074074074) internal successors, (199), 153 states have internal predecessors, (199), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-11 20:59:55,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 215 transitions. [2024-10-11 20:59:55,359 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 215 transitions. Word has length 37 [2024-10-11 20:59:55,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:59:55,360 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 215 transitions. [2024-10-11 20:59:55,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-11 20:59:55,360 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 215 transitions. [2024-10-11 20:59:55,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-10-11 20:59:55,361 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:59:55,361 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:59:55,378 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-11 20:59:55,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-11 20:59:55,562 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-11 20:59:55,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:59:55,563 INFO L85 PathProgramCache]: Analyzing trace with hash -833677725, now seen corresponding path program 1 times [2024-10-11 20:59:55,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:59:55,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165210160] [2024-10-11 20:59:55,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:59:55,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:59:55,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:59:55,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 20:59:55,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:59:55,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 20:59:55,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:59:55,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 20:59:55,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:59:55,663 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 20:59:55,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:59:55,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165210160] [2024-10-11 20:59:55,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165210160] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:59:55,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1259069094] [2024-10-11 20:59:55,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:59:55,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:59:55,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:59:55,665 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:59:55,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-11 20:59:55,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:59:55,709 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 20:59:55,710 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:59:55,769 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 20:59:55,770 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 20:59:55,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1259069094] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:59:55,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 20:59:55,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-10-11 20:59:55,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468434978] [2024-10-11 20:59:55,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:59:55,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 20:59:55,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:59:55,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 20:59:55,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-11 20:59:55,771 INFO L87 Difference]: Start difference. First operand 164 states and 215 transitions. Second operand has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-11 20:59:55,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:59:55,819 INFO L93 Difference]: Finished difference Result 174 states and 224 transitions. [2024-10-11 20:59:55,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 20:59:55,820 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 38 [2024-10-11 20:59:55,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:59:55,821 INFO L225 Difference]: With dead ends: 174 [2024-10-11 20:59:55,821 INFO L226 Difference]: Without dead ends: 173 [2024-10-11 20:59:55,822 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-10-11 20:59:55,822 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 39 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 20:59:55,823 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 184 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 20:59:55,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-10-11 20:59:55,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 163. [2024-10-11 20:59:55,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 135 states have (on average 1.4370370370370371) internal successors, (194), 152 states have internal predecessors, (194), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-11 20:59:55,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 210 transitions. [2024-10-11 20:59:55,832 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 210 transitions. Word has length 38 [2024-10-11 20:59:55,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:59:55,832 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 210 transitions. [2024-10-11 20:59:55,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-11 20:59:55,833 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 210 transitions. [2024-10-11 20:59:55,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-10-11 20:59:55,833 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:59:55,833 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:59:55,850 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-11 20:59:56,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-11 20:59:56,035 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-11 20:59:56,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:59:56,035 INFO L85 PathProgramCache]: Analyzing trace with hash -260192512, now seen corresponding path program 1 times [2024-10-11 20:59:56,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:59:56,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929049469] [2024-10-11 20:59:56,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:59:56,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:59:56,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:59:56,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 20:59:56,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:59:56,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 20:59:56,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:59:56,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 20:59:56,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:59:56,122 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 20:59:56,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:59:56,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929049469] [2024-10-11 20:59:56,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929049469] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:59:56,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [952374367] [2024-10-11 20:59:56,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:59:56,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:59:56,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:59:56,127 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:59:56,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-11 20:59:56,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:59:56,173 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 20:59:56,175 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:59:56,241 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 20:59:56,241 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:59:56,316 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 20:59:56,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [952374367] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:59:56,317 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:59:56,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 6] total 13 [2024-10-11 20:59:56,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445127690] [2024-10-11 20:59:56,317 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:59:56,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 20:59:56,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:59:56,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 20:59:56,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2024-10-11 20:59:56,318 INFO L87 Difference]: Start difference. First operand 163 states and 210 transitions. Second operand has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-10-11 20:59:56,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:59:56,431 INFO L93 Difference]: Finished difference Result 305 states and 362 transitions. [2024-10-11 20:59:56,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 20:59:56,431 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 40 [2024-10-11 20:59:56,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:59:56,433 INFO L225 Difference]: With dead ends: 305 [2024-10-11 20:59:56,433 INFO L226 Difference]: Without dead ends: 293 [2024-10-11 20:59:56,433 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2024-10-11 20:59:56,434 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 94 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 20:59:56,434 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 314 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 20:59:56,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2024-10-11 20:59:56,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 251. [2024-10-11 20:59:56,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 217 states have (on average 1.4101382488479262) internal successors, (306), 234 states have internal predecessors, (306), 11 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-11 20:59:56,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 328 transitions. [2024-10-11 20:59:56,448 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 328 transitions. Word has length 40 [2024-10-11 20:59:56,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:59:56,448 INFO L471 AbstractCegarLoop]: Abstraction has 251 states and 328 transitions. [2024-10-11 20:59:56,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-10-11 20:59:56,449 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 328 transitions. [2024-10-11 20:59:56,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-10-11 20:59:56,449 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:59:56,450 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:59:56,467 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-11 20:59:56,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:59:56,651 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-11 20:59:56,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:59:56,651 INFO L85 PathProgramCache]: Analyzing trace with hash -260192497, now seen corresponding path program 1 times [2024-10-11 20:59:56,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:59:56,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442069764] [2024-10-11 20:59:56,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:59:56,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:59:56,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 20:59:56,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [956317632] [2024-10-11 20:59:56,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:59:56,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:59:56,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:59:56,667 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:59:56,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-11 20:59:56,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:59:56,714 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 20:59:56,715 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:59:56,884 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 20:59:56,885 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:59:57,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:59:57,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442069764] [2024-10-11 20:59:57,052 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 20:59:57,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [956317632] [2024-10-11 20:59:57,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [956317632] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:59:57,052 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-11 20:59:57,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-10-11 20:59:57,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591382009] [2024-10-11 20:59:57,052 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-11 20:59:57,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 20:59:57,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:59:57,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 20:59:57,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-10-11 20:59:57,053 INFO L87 Difference]: Start difference. First operand 251 states and 328 transitions. Second operand has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-11 20:59:57,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:59:57,174 INFO L93 Difference]: Finished difference Result 258 states and 331 transitions. [2024-10-11 20:59:57,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 20:59:57,175 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 40 [2024-10-11 20:59:57,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:59:57,176 INFO L225 Difference]: With dead ends: 258 [2024-10-11 20:59:57,176 INFO L226 Difference]: Without dead ends: 251 [2024-10-11 20:59:57,177 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-10-11 20:59:57,177 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 65 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 20:59:57,177 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 77 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 20:59:57,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2024-10-11 20:59:57,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 247. [2024-10-11 20:59:57,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 218 states have (on average 1.3073394495412844) internal successors, (285), 230 states have internal predecessors, (285), 11 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-11 20:59:57,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 307 transitions. [2024-10-11 20:59:57,189 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 307 transitions. Word has length 40 [2024-10-11 20:59:57,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:59:57,190 INFO L471 AbstractCegarLoop]: Abstraction has 247 states and 307 transitions. [2024-10-11 20:59:57,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-11 20:59:57,190 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 307 transitions. [2024-10-11 20:59:57,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-10-11 20:59:57,191 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:59:57,191 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:59:57,207 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-11 20:59:57,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-11 20:59:57,392 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-11 20:59:57,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:59:57,392 INFO L85 PathProgramCache]: Analyzing trace with hash 523967238, now seen corresponding path program 1 times [2024-10-11 20:59:57,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:59:57,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149422494] [2024-10-11 20:59:57,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:59:57,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:59:57,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 20:59:57,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [226780080] [2024-10-11 20:59:57,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:59:57,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:59:57,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:59:57,403 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:59:57,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-11 20:59:57,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:59:57,448 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 20:59:57,449 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:59:57,605 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 20:59:57,605 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:59:58,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:59:58,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149422494] [2024-10-11 20:59:58,002 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 20:59:58,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [226780080] [2024-10-11 20:59:58,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [226780080] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:59:58,002 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-11 20:59:58,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-10-11 20:59:58,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612765787] [2024-10-11 20:59:58,002 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-11 20:59:58,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 20:59:58,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:59:58,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 20:59:58,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-10-11 20:59:58,004 INFO L87 Difference]: Start difference. First operand 247 states and 307 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-11 20:59:58,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:59:58,149 INFO L93 Difference]: Finished difference Result 335 states and 415 transitions. [2024-10-11 20:59:58,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 20:59:58,150 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 41 [2024-10-11 20:59:58,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:59:58,151 INFO L225 Difference]: With dead ends: 335 [2024-10-11 20:59:58,152 INFO L226 Difference]: Without dead ends: 330 [2024-10-11 20:59:58,152 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-10-11 20:59:58,153 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 92 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 20:59:58,153 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 116 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 20:59:58,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2024-10-11 20:59:58,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 314. [2024-10-11 20:59:58,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 282 states have (on average 1.2872340425531914) internal successors, (363), 294 states have internal predecessors, (363), 14 states have call successors, (14), 5 states have call predecessors, (14), 5 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-11 20:59:58,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 391 transitions. [2024-10-11 20:59:58,166 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 391 transitions. Word has length 41 [2024-10-11 20:59:58,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:59:58,166 INFO L471 AbstractCegarLoop]: Abstraction has 314 states and 391 transitions. [2024-10-11 20:59:58,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-11 20:59:58,167 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 391 transitions. [2024-10-11 20:59:58,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-10-11 20:59:58,167 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:59:58,168 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:59:58,185 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-10-11 20:59:58,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,10 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:59:58,368 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-11 20:59:58,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:59:58,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1247688999, now seen corresponding path program 1 times [2024-10-11 20:59:58,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:59:58,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713535825] [2024-10-11 20:59:58,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:59:58,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:59:58,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:59:58,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 20:59:58,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:59:58,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 20:59:58,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:59:58,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 20:59:58,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:59:58,495 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 20:59:58,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:59:58,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713535825] [2024-10-11 20:59:58,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713535825] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:59:58,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [120617773] [2024-10-11 20:59:58,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:59:58,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:59:58,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:59:58,497 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:59:58,499 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-11 20:59:58,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:59:58,538 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 20:59:58,539 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:59:58,653 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 20:59:58,653 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 20:59:58,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [120617773] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:59:58,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 20:59:58,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-10-11 20:59:58,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978181522] [2024-10-11 20:59:58,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:59:58,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 20:59:58,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:59:58,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 20:59:58,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-10-11 20:59:58,655 INFO L87 Difference]: Start difference. First operand 314 states and 391 transitions. Second operand has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-11 20:59:58,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:59:58,776 INFO L93 Difference]: Finished difference Result 314 states and 391 transitions. [2024-10-11 20:59:58,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 20:59:58,777 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 42 [2024-10-11 20:59:58,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:59:58,778 INFO L225 Difference]: With dead ends: 314 [2024-10-11 20:59:58,778 INFO L226 Difference]: Without dead ends: 312 [2024-10-11 20:59:58,778 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-10-11 20:59:58,779 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 32 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 20:59:58,779 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 75 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 20:59:58,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2024-10-11 20:59:58,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 309. [2024-10-11 20:59:58,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 279 states have (on average 1.2759856630824373) internal successors, (356), 289 states have internal predecessors, (356), 14 states have call successors, (14), 5 states have call predecessors, (14), 5 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-11 20:59:58,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 384 transitions. [2024-10-11 20:59:58,793 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 384 transitions. Word has length 42 [2024-10-11 20:59:58,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:59:58,793 INFO L471 AbstractCegarLoop]: Abstraction has 309 states and 384 transitions. [2024-10-11 20:59:58,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-11 20:59:58,793 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 384 transitions. [2024-10-11 20:59:58,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-10-11 20:59:58,794 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:59:58,794 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:59:58,812 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-10-11 20:59:58,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-10-11 20:59:58,995 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-11 20:59:58,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:59:58,995 INFO L85 PathProgramCache]: Analyzing trace with hash 23653362, now seen corresponding path program 1 times [2024-10-11 20:59:58,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:59:58,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463133904] [2024-10-11 20:59:58,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:59:58,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:59:59,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:59:59,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 20:59:59,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:59:59,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 20:59:59,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:59:59,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 20:59:59,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:59:59,166 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 20:59:59,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:59:59,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463133904] [2024-10-11 20:59:59,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463133904] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:59:59,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [397492036] [2024-10-11 20:59:59,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:59:59,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:59:59,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:59:59,169 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:59:59,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-11 20:59:59,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:59:59,210 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 20:59:59,211 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:59:59,307 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 20:59:59,307 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:59:59,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [397492036] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:59:59,474 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-11 20:59:59,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 3] total 11 [2024-10-11 20:59:59,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137240043] [2024-10-11 20:59:59,475 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-11 20:59:59,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-11 20:59:59,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:59:59,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-11 20:59:59,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2024-10-11 20:59:59,476 INFO L87 Difference]: Start difference. First operand 309 states and 384 transitions. Second operand has 12 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-10-11 21:00:00,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:00,045 INFO L93 Difference]: Finished difference Result 332 states and 399 transitions. [2024-10-11 21:00:00,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-11 21:00:00,045 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 43 [2024-10-11 21:00:00,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:00,047 INFO L225 Difference]: With dead ends: 332 [2024-10-11 21:00:00,047 INFO L226 Difference]: Without dead ends: 313 [2024-10-11 21:00:00,048 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=182, Invalid=468, Unknown=0, NotChecked=0, Total=650 [2024-10-11 21:00:00,048 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 140 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:00,048 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 186 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 21:00:00,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2024-10-11 21:00:00,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 297. [2024-10-11 21:00:00,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 267 states have (on average 1.2134831460674158) internal successors, (324), 278 states have internal predecessors, (324), 14 states have call successors, (14), 5 states have call predecessors, (14), 5 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-11 21:00:00,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 352 transitions. [2024-10-11 21:00:00,062 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 352 transitions. Word has length 43 [2024-10-11 21:00:00,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:00,062 INFO L471 AbstractCegarLoop]: Abstraction has 297 states and 352 transitions. [2024-10-11 21:00:00,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-10-11 21:00:00,062 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 352 transitions. [2024-10-11 21:00:00,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-10-11 21:00:00,064 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:00,064 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:00,081 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-10-11 21:00:00,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-10-11 21:00:00,265 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-11 21:00:00,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:00,265 INFO L85 PathProgramCache]: Analyzing trace with hash 733254281, now seen corresponding path program 1 times [2024-10-11 21:00:00,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:00,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159362758] [2024-10-11 21:00:00,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:00,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:00,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:00,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 21:00:00,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:00,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 21:00:00,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:00,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 21:00:00,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:00,317 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 21:00:00,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:00,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159362758] [2024-10-11 21:00:00,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159362758] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 21:00:00,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 21:00:00,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 21:00:00,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332626759] [2024-10-11 21:00:00,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 21:00:00,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 21:00:00,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:00,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 21:00:00,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 21:00:00,319 INFO L87 Difference]: Start difference. First operand 297 states and 352 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-11 21:00:00,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:00,502 INFO L93 Difference]: Finished difference Result 298 states and 352 transitions. [2024-10-11 21:00:00,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 21:00:00,502 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 44 [2024-10-11 21:00:00,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:00,505 INFO L225 Difference]: With dead ends: 298 [2024-10-11 21:00:00,505 INFO L226 Difference]: Without dead ends: 297 [2024-10-11 21:00:00,505 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 21:00:00,506 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 4 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:00,506 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 73 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 21:00:00,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2024-10-11 21:00:00,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 297. [2024-10-11 21:00:00,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 267 states have (on average 1.1910112359550562) internal successors, (318), 278 states have internal predecessors, (318), 14 states have call successors, (14), 5 states have call predecessors, (14), 5 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-11 21:00:00,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 346 transitions. [2024-10-11 21:00:00,522 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 346 transitions. Word has length 44 [2024-10-11 21:00:00,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:00,522 INFO L471 AbstractCegarLoop]: Abstraction has 297 states and 346 transitions. [2024-10-11 21:00:00,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-11 21:00:00,522 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 346 transitions. [2024-10-11 21:00:00,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-10-11 21:00:00,523 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:00,523 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:00,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-11 21:00:00,524 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-11 21:00:00,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:00,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1596888275, now seen corresponding path program 1 times [2024-10-11 21:00:00,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:00,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296458171] [2024-10-11 21:00:00,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:00,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:00,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:00,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 21:00:00,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:00,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 21:00:00,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:00,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 21:00:00,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:00,671 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 21:00:00,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:00,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296458171] [2024-10-11 21:00:00,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296458171] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:00:00,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1315720575] [2024-10-11 21:00:00,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:00,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:00,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:00:00,676 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:00:00,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-11 21:00:00,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:00,729 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-11 21:00:00,730 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:00:00,840 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 21:00:00,840 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:00:01,184 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 21:00:01,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1315720575] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:00:01,185 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 21:00:01,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2024-10-11 21:00:01,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985079336] [2024-10-11 21:00:01,185 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 21:00:01,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-11 21:00:01,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:01,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-11 21:00:01,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2024-10-11 21:00:01,188 INFO L87 Difference]: Start difference. First operand 297 states and 346 transitions. Second operand has 17 states, 16 states have (on average 4.0) internal successors, (64), 16 states have internal predecessors, (64), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-11 21:00:01,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:01,694 INFO L93 Difference]: Finished difference Result 302 states and 348 transitions. [2024-10-11 21:00:01,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 21:00:01,695 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 4.0) internal successors, (64), 16 states have internal predecessors, (64), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 44 [2024-10-11 21:00:01,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:01,696 INFO L225 Difference]: With dead ends: 302 [2024-10-11 21:00:01,696 INFO L226 Difference]: Without dead ends: 299 [2024-10-11 21:00:01,697 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 80 SyntacticMatches, 5 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=159, Invalid=491, Unknown=0, NotChecked=0, Total=650 [2024-10-11 21:00:01,699 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 183 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:01,699 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 169 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 21:00:01,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2024-10-11 21:00:01,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 294. [2024-10-11 21:00:01,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 267 states have (on average 1.149812734082397) internal successors, (307), 275 states have internal predecessors, (307), 14 states have call successors, (14), 5 states have call predecessors, (14), 5 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-11 21:00:01,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 335 transitions. [2024-10-11 21:00:01,717 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 335 transitions. Word has length 44 [2024-10-11 21:00:01,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:01,717 INFO L471 AbstractCegarLoop]: Abstraction has 294 states and 335 transitions. [2024-10-11 21:00:01,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 4.0) internal successors, (64), 16 states have internal predecessors, (64), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-11 21:00:01,718 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 335 transitions. [2024-10-11 21:00:01,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-10-11 21:00:01,718 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:01,718 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:01,737 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-10-11 21:00:01,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-10-11 21:00:01,923 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-11 21:00:01,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:01,927 INFO L85 PathProgramCache]: Analyzing trace with hash -2036070966, now seen corresponding path program 1 times [2024-10-11 21:00:01,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:01,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040449104] [2024-10-11 21:00:01,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:01,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:01,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 21:00:01,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [352595247] [2024-10-11 21:00:01,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:01,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:01,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:00:01,958 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:00:01,987 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-11 21:00:02,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:02,028 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-11 21:00:02,029 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:00:02,241 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 21:00:02,241 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:00:02,345 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 21:00:02,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:02,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040449104] [2024-10-11 21:00:02,346 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 21:00:02,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [352595247] [2024-10-11 21:00:02,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [352595247] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:00:02,346 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-11 21:00:02,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-10-11 21:00:02,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125513077] [2024-10-11 21:00:02,346 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-11 21:00:02,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-11 21:00:02,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:02,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-11 21:00:02,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-10-11 21:00:02,347 INFO L87 Difference]: Start difference. First operand 294 states and 335 transitions. Second operand has 11 states, 10 states have (on average 6.5) internal successors, (65), 11 states have internal predecessors, (65), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-11 21:00:03,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:03,020 INFO L93 Difference]: Finished difference Result 394 states and 449 transitions. [2024-10-11 21:00:03,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 21:00:03,021 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.5) internal successors, (65), 11 states have internal predecessors, (65), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 45 [2024-10-11 21:00:03,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:03,022 INFO L225 Difference]: With dead ends: 394 [2024-10-11 21:00:03,022 INFO L226 Difference]: Without dead ends: 274 [2024-10-11 21:00:03,023 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 78 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2024-10-11 21:00:03,023 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 86 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:03,024 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 135 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-11 21:00:03,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2024-10-11 21:00:03,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 272. [2024-10-11 21:00:03,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 247 states have (on average 1.1093117408906883) internal successors, (274), 254 states have internal predecessors, (274), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-11 21:00:03,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 300 transitions. [2024-10-11 21:00:03,037 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 300 transitions. Word has length 45 [2024-10-11 21:00:03,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:03,037 INFO L471 AbstractCegarLoop]: Abstraction has 272 states and 300 transitions. [2024-10-11 21:00:03,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.5) internal successors, (65), 11 states have internal predecessors, (65), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-11 21:00:03,038 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 300 transitions. [2024-10-11 21:00:03,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-11 21:00:03,038 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:03,038 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:03,053 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-10-11 21:00:03,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:03,243 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-11 21:00:03,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:03,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1171212445, now seen corresponding path program 2 times [2024-10-11 21:00:03,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:03,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572956971] [2024-10-11 21:00:03,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:03,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:03,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 21:00:03,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1006037455] [2024-10-11 21:00:03,254 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 21:00:03,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:03,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:00:03,256 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:00:03,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-10-11 21:00:03,303 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 21:00:03,303 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 21:00:03,304 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-11 21:00:03,306 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:00:03,441 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-11 21:00:03,441 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:00:03,724 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-11 21:00:03,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:03,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572956971] [2024-10-11 21:00:03,724 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 21:00:03,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1006037455] [2024-10-11 21:00:03,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1006037455] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:00:03,724 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-11 21:00:03,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-10-11 21:00:03,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79905615] [2024-10-11 21:00:03,724 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-11 21:00:03,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 21:00:03,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:03,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 21:00:03,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-10-11 21:00:03,726 INFO L87 Difference]: Start difference. First operand 272 states and 300 transitions. Second operand has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 10 states have internal predecessors, (93), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-10-11 21:00:04,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:04,614 INFO L93 Difference]: Finished difference Result 441 states and 506 transitions. [2024-10-11 21:00:04,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-11 21:00:04,615 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 10 states have internal predecessors, (93), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 64 [2024-10-11 21:00:04,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:04,617 INFO L225 Difference]: With dead ends: 441 [2024-10-11 21:00:04,617 INFO L226 Difference]: Without dead ends: 428 [2024-10-11 21:00:04,618 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2024-10-11 21:00:04,618 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 208 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:04,619 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 253 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-11 21:00:04,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2024-10-11 21:00:04,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 390. [2024-10-11 21:00:04,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 359 states have (on average 1.128133704735376) internal successors, (405), 366 states have internal predecessors, (405), 19 states have call successors, (19), 5 states have call predecessors, (19), 5 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2024-10-11 21:00:04,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 443 transitions. [2024-10-11 21:00:04,642 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 443 transitions. Word has length 64 [2024-10-11 21:00:04,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:04,642 INFO L471 AbstractCegarLoop]: Abstraction has 390 states and 443 transitions. [2024-10-11 21:00:04,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 10 states have internal predecessors, (93), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-10-11 21:00:04,643 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 443 transitions. [2024-10-11 21:00:04,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-11 21:00:04,643 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:04,643 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:04,661 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-10-11 21:00:04,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:04,845 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-11 21:00:04,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:04,845 INFO L85 PathProgramCache]: Analyzing trace with hash 397103473, now seen corresponding path program 1 times [2024-10-11 21:00:04,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:04,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320486790] [2024-10-11 21:00:04,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:04,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:04,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:04,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 21:00:04,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:04,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 21:00:04,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:04,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 21:00:04,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:04,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-11 21:00:04,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:04,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 21:00:04,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:04,935 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-11 21:00:04,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:04,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320486790] [2024-10-11 21:00:04,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320486790] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:00:04,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [722138295] [2024-10-11 21:00:04,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:04,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:04,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:00:04,939 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:00:04,942 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-10-11 21:00:04,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:04,987 INFO L255 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 21:00:04,988 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:00:05,051 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-11 21:00:05,051 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:00:05,146 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-11 21:00:05,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [722138295] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:00:05,147 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 21:00:05,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-10-11 21:00:05,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190257169] [2024-10-11 21:00:05,147 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 21:00:05,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 21:00:05,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:05,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 21:00:05,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2024-10-11 21:00:05,148 INFO L87 Difference]: Start difference. First operand 390 states and 443 transitions. Second operand has 9 states, 8 states have (on average 15.5) internal successors, (124), 9 states have internal predecessors, (124), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-10-11 21:00:05,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:05,338 INFO L93 Difference]: Finished difference Result 1011 states and 1242 transitions. [2024-10-11 21:00:05,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 21:00:05,338 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 15.5) internal successors, (124), 9 states have internal predecessors, (124), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) Word has length 76 [2024-10-11 21:00:05,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:05,342 INFO L225 Difference]: With dead ends: 1011 [2024-10-11 21:00:05,342 INFO L226 Difference]: Without dead ends: 1009 [2024-10-11 21:00:05,343 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2024-10-11 21:00:05,343 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 42 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:05,343 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 175 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 21:00:05,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1009 states. [2024-10-11 21:00:05,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1009 to 989. [2024-10-11 21:00:05,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 926 states have (on average 1.1339092872570193) internal successors, (1050), 931 states have internal predecessors, (1050), 52 states have call successors, (52), 5 states have call predecessors, (52), 5 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-10-11 21:00:05,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1154 transitions. [2024-10-11 21:00:05,399 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1154 transitions. Word has length 76 [2024-10-11 21:00:05,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:05,400 INFO L471 AbstractCegarLoop]: Abstraction has 989 states and 1154 transitions. [2024-10-11 21:00:05,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 15.5) internal successors, (124), 9 states have internal predecessors, (124), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-10-11 21:00:05,400 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1154 transitions. [2024-10-11 21:00:05,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-10-11 21:00:05,403 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:05,403 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:05,422 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-10-11 21:00:05,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,16 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:05,603 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-11 21:00:05,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:05,604 INFO L85 PathProgramCache]: Analyzing trace with hash 267410460, now seen corresponding path program 1 times [2024-10-11 21:00:05,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:05,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496376524] [2024-10-11 21:00:05,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:05,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:05,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:05,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 21:00:05,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:05,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 21:00:05,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:05,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 21:00:05,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:05,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-11 21:00:05,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:05,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 21:00:05,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:05,782 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 6 proven. 73 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-11 21:00:05,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:05,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496376524] [2024-10-11 21:00:05,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496376524] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:00:05,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [210031932] [2024-10-11 21:00:05,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:05,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:05,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:00:05,784 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:00:05,785 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-10-11 21:00:05,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:05,838 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-11 21:00:05,839 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:00:05,933 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 6 proven. 73 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-11 21:00:05,934 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:00:06,147 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 6 proven. 73 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-11 21:00:06,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [210031932] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:00:06,147 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 21:00:06,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2024-10-11 21:00:06,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301790680] [2024-10-11 21:00:06,148 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 21:00:06,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-11 21:00:06,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:06,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-11 21:00:06,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2024-10-11 21:00:06,149 INFO L87 Difference]: Start difference. First operand 989 states and 1154 transitions. Second operand has 16 states, 15 states have (on average 9.933333333333334) internal successors, (149), 16 states have internal predecessors, (149), 8 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 7 states have call predecessors, (9), 8 states have call successors, (9) [2024-10-11 21:00:06,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:06,732 INFO L93 Difference]: Finished difference Result 1612 states and 1865 transitions. [2024-10-11 21:00:06,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-10-11 21:00:06,734 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 9.933333333333334) internal successors, (149), 16 states have internal predecessors, (149), 8 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 7 states have call predecessors, (9), 8 states have call successors, (9) Word has length 89 [2024-10-11 21:00:06,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:06,741 INFO L225 Difference]: With dead ends: 1612 [2024-10-11 21:00:06,741 INFO L226 Difference]: Without dead ends: 1594 [2024-10-11 21:00:06,742 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=272, Invalid=658, Unknown=0, NotChecked=0, Total=930 [2024-10-11 21:00:06,743 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 159 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:06,743 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 240 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 21:00:06,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1594 states. [2024-10-11 21:00:06,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1594 to 1546. [2024-10-11 21:00:06,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1546 states, 1462 states have (on average 1.0957592339261286) internal successors, (1602), 1467 states have internal predecessors, (1602), 73 states have call successors, (73), 5 states have call predecessors, (73), 5 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2024-10-11 21:00:06,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1546 states to 1546 states and 1748 transitions. [2024-10-11 21:00:06,843 INFO L78 Accepts]: Start accepts. Automaton has 1546 states and 1748 transitions. Word has length 89 [2024-10-11 21:00:06,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:06,844 INFO L471 AbstractCegarLoop]: Abstraction has 1546 states and 1748 transitions. [2024-10-11 21:00:06,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 9.933333333333334) internal successors, (149), 16 states have internal predecessors, (149), 8 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 7 states have call predecessors, (9), 8 states have call successors, (9) [2024-10-11 21:00:06,844 INFO L276 IsEmpty]: Start isEmpty. Operand 1546 states and 1748 transitions. [2024-10-11 21:00:06,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-11 21:00:06,846 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:06,846 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:06,862 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-10-11 21:00:07,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-10-11 21:00:07,050 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-11 21:00:07,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:07,050 INFO L85 PathProgramCache]: Analyzing trace with hash 475728776, now seen corresponding path program 1 times [2024-10-11 21:00:07,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:07,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611094841] [2024-10-11 21:00:07,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:07,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:07,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:07,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 21:00:07,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:07,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 21:00:07,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:07,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 21:00:07,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:07,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-11 21:00:07,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:07,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 21:00:07,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:07,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-11 21:00:07,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:07,128 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-10-11 21:00:07,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:07,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611094841] [2024-10-11 21:00:07,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611094841] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:00:07,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1161871081] [2024-10-11 21:00:07,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:07,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:07,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:00:07,130 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:00:07,132 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-10-11 21:00:07,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:07,181 INFO L255 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 21:00:07,182 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:00:07,290 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 78 proven. 30 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-11 21:00:07,291 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:00:07,388 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 66 proven. 30 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-11 21:00:07,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1161871081] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:00:07,388 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 21:00:07,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 6] total 10 [2024-10-11 21:00:07,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166142023] [2024-10-11 21:00:07,389 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 21:00:07,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 21:00:07,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:07,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 21:00:07,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-10-11 21:00:07,390 INFO L87 Difference]: Start difference. First operand 1546 states and 1748 transitions. Second operand has 10 states, 10 states have (on average 15.5) internal successors, (155), 10 states have internal predecessors, (155), 9 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) [2024-10-11 21:00:07,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:07,835 INFO L93 Difference]: Finished difference Result 2412 states and 2761 transitions. [2024-10-11 21:00:07,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-11 21:00:07,835 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 15.5) internal successors, (155), 10 states have internal predecessors, (155), 9 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) Word has length 102 [2024-10-11 21:00:07,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:07,842 INFO L225 Difference]: With dead ends: 2412 [2024-10-11 21:00:07,842 INFO L226 Difference]: Without dead ends: 1935 [2024-10-11 21:00:07,844 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 207 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=135, Invalid=417, Unknown=0, NotChecked=0, Total=552 [2024-10-11 21:00:07,844 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 169 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:07,844 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 259 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 21:00:07,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1935 states. [2024-10-11 21:00:07,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1935 to 1651. [2024-10-11 21:00:07,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1651 states, 1561 states have (on average 1.0928891736066624) internal successors, (1706), 1566 states have internal predecessors, (1706), 79 states have call successors, (79), 5 states have call predecessors, (79), 5 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-10-11 21:00:07,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1651 states to 1651 states and 1864 transitions. [2024-10-11 21:00:07,947 INFO L78 Accepts]: Start accepts. Automaton has 1651 states and 1864 transitions. Word has length 102 [2024-10-11 21:00:07,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:07,947 INFO L471 AbstractCegarLoop]: Abstraction has 1651 states and 1864 transitions. [2024-10-11 21:00:07,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 15.5) internal successors, (155), 10 states have internal predecessors, (155), 9 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) [2024-10-11 21:00:07,948 INFO L276 IsEmpty]: Start isEmpty. Operand 1651 states and 1864 transitions. [2024-10-11 21:00:07,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-11 21:00:07,949 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:07,949 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:07,966 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-10-11 21:00:08,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,18 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:08,149 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-11 21:00:08,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:08,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1669053778, now seen corresponding path program 1 times [2024-10-11 21:00:08,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:08,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532131354] [2024-10-11 21:00:08,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:08,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:08,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:08,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 21:00:08,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:08,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 21:00:08,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:08,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 21:00:08,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:08,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-11 21:00:08,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:08,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 21:00:08,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:08,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-11 21:00:08,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:08,250 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-11 21:00:08,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:08,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532131354] [2024-10-11 21:00:08,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532131354] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:00:08,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [95613657] [2024-10-11 21:00:08,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:08,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:08,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:00:08,252 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:00:08,254 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-10-11 21:00:08,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:08,306 INFO L255 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 21:00:08,308 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:00:08,388 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-11 21:00:08,388 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:00:08,512 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-11 21:00:08,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [95613657] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:00:08,513 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 21:00:08,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-11 21:00:08,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519393856] [2024-10-11 21:00:08,513 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 21:00:08,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-11 21:00:08,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:08,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-11 21:00:08,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-10-11 21:00:08,515 INFO L87 Difference]: Start difference. First operand 1651 states and 1864 transitions. Second operand has 11 states, 10 states have (on average 16.6) internal successors, (166), 11 states have internal predecessors, (166), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-10-11 21:00:08,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:08,757 INFO L93 Difference]: Finished difference Result 2400 states and 2755 transitions. [2024-10-11 21:00:08,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 21:00:08,758 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 16.6) internal successors, (166), 11 states have internal predecessors, (166), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) Word has length 102 [2024-10-11 21:00:08,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:08,766 INFO L225 Difference]: With dead ends: 2400 [2024-10-11 21:00:08,766 INFO L226 Difference]: Without dead ends: 2399 [2024-10-11 21:00:08,767 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-10-11 21:00:08,768 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 125 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:08,768 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 220 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 21:00:08,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2399 states. [2024-10-11 21:00:08,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2399 to 2351. [2024-10-11 21:00:08,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2351 states, 2224 states have (on average 1.110611510791367) internal successors, (2470), 2229 states have internal predecessors, (2470), 116 states have call successors, (116), 5 states have call predecessors, (116), 5 states have return successors, (116), 116 states have call predecessors, (116), 116 states have call successors, (116) [2024-10-11 21:00:08,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2351 states to 2351 states and 2702 transitions. [2024-10-11 21:00:08,940 INFO L78 Accepts]: Start accepts. Automaton has 2351 states and 2702 transitions. Word has length 102 [2024-10-11 21:00:08,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:08,940 INFO L471 AbstractCegarLoop]: Abstraction has 2351 states and 2702 transitions. [2024-10-11 21:00:08,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 16.6) internal successors, (166), 11 states have internal predecessors, (166), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-10-11 21:00:08,940 INFO L276 IsEmpty]: Start isEmpty. Operand 2351 states and 2702 transitions. [2024-10-11 21:00:08,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-10-11 21:00:08,942 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:08,942 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:08,960 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-10-11 21:00:09,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-10-11 21:00:09,143 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-11 21:00:09,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:09,143 INFO L85 PathProgramCache]: Analyzing trace with hash 952620954, now seen corresponding path program 1 times [2024-10-11 21:00:09,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:09,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097096239] [2024-10-11 21:00:09,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:09,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:09,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:09,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 21:00:09,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:09,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 21:00:09,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:09,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 21:00:09,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:09,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-11 21:00:09,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:09,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 21:00:09,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:09,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-11 21:00:09,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:09,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-11 21:00:09,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:09,277 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 58 proven. 128 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-10-11 21:00:09,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:09,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097096239] [2024-10-11 21:00:09,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097096239] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:00:09,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1839804322] [2024-10-11 21:00:09,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:09,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:09,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:00:09,279 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:00:09,280 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-10-11 21:00:09,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:09,336 INFO L255 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-11 21:00:09,338 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:00:09,521 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 73 proven. 113 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-10-11 21:00:09,521 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:00:09,699 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 73 proven. 113 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-10-11 21:00:09,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1839804322] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:00:09,699 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 21:00:09,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 12 [2024-10-11 21:00:09,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341709530] [2024-10-11 21:00:09,700 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 21:00:09,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-11 21:00:09,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:09,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-11 21:00:09,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-10-11 21:00:09,701 INFO L87 Difference]: Start difference. First operand 2351 states and 2702 transitions. Second operand has 12 states, 12 states have (on average 14.583333333333334) internal successors, (175), 12 states have internal predecessors, (175), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-10-11 21:00:10,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:10,178 INFO L93 Difference]: Finished difference Result 4572 states and 5354 transitions. [2024-10-11 21:00:10,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 21:00:10,179 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 14.583333333333334) internal successors, (175), 12 states have internal predecessors, (175), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) Word has length 133 [2024-10-11 21:00:10,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:10,191 INFO L225 Difference]: With dead ends: 4572 [2024-10-11 21:00:10,191 INFO L226 Difference]: Without dead ends: 3457 [2024-10-11 21:00:10,194 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 271 SyntacticMatches, 5 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2024-10-11 21:00:10,194 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 67 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 635 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:10,197 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 497 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 635 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 21:00:10,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3457 states. [2024-10-11 21:00:10,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3457 to 2619. [2024-10-11 21:00:10,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2619 states, 2478 states have (on average 1.1073446327683616) internal successors, (2744), 2483 states have internal predecessors, (2744), 130 states have call successors, (130), 5 states have call predecessors, (130), 5 states have return successors, (130), 130 states have call predecessors, (130), 130 states have call successors, (130) [2024-10-11 21:00:10,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2619 states to 2619 states and 3004 transitions. [2024-10-11 21:00:10,346 INFO L78 Accepts]: Start accepts. Automaton has 2619 states and 3004 transitions. Word has length 133 [2024-10-11 21:00:10,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:10,346 INFO L471 AbstractCegarLoop]: Abstraction has 2619 states and 3004 transitions. [2024-10-11 21:00:10,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 14.583333333333334) internal successors, (175), 12 states have internal predecessors, (175), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-10-11 21:00:10,347 INFO L276 IsEmpty]: Start isEmpty. Operand 2619 states and 3004 transitions. [2024-10-11 21:00:10,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-10-11 21:00:10,350 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:10,350 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:10,367 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-10-11 21:00:10,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,20 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:10,551 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-11 21:00:10,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:10,551 INFO L85 PathProgramCache]: Analyzing trace with hash -159059269, now seen corresponding path program 2 times [2024-10-11 21:00:10,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:10,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910013512] [2024-10-11 21:00:10,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:10,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:10,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:10,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 21:00:10,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:10,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 21:00:10,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:10,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 21:00:10,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:10,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-11 21:00:10,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:10,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 21:00:10,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:10,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-11 21:00:10,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:10,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-11 21:00:10,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:10,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-11 21:00:10,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:10,829 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 0 proven. 277 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-10-11 21:00:10,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:10,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910013512] [2024-10-11 21:00:10,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910013512] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:00:10,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1960502263] [2024-10-11 21:00:10,829 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 21:00:10,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:10,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:00:10,831 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:00:10,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-10-11 21:00:10,908 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 21:00:10,908 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 21:00:10,910 INFO L255 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-11 21:00:10,912 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:00:11,098 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 0 proven. 337 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 21:00:11,101 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:00:11,400 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 0 proven. 277 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-10-11 21:00:11,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1960502263] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:00:11,400 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 21:00:11,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15, 16] total 33 [2024-10-11 21:00:11,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454545213] [2024-10-11 21:00:11,400 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 21:00:11,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-10-11 21:00:11,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:11,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-10-11 21:00:11,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=301, Invalid=755, Unknown=0, NotChecked=0, Total=1056 [2024-10-11 21:00:11,402 INFO L87 Difference]: Start difference. First operand 2619 states and 3004 transitions. Second operand has 33 states, 33 states have (on average 7.96969696969697) internal successors, (263), 33 states have internal predecessors, (263), 15 states have call successors, (24), 8 states have call predecessors, (24), 8 states have return successors, (24), 15 states have call predecessors, (24), 15 states have call successors, (24) [2024-10-11 21:00:12,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:12,199 INFO L93 Difference]: Finished difference Result 9751 states and 11357 transitions. [2024-10-11 21:00:12,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-10-11 21:00:12,200 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 7.96969696969697) internal successors, (263), 33 states have internal predecessors, (263), 15 states have call successors, (24), 8 states have call predecessors, (24), 8 states have return successors, (24), 15 states have call predecessors, (24), 15 states have call successors, (24) Word has length 156 [2024-10-11 21:00:12,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:12,227 INFO L225 Difference]: With dead ends: 9751 [2024-10-11 21:00:12,227 INFO L226 Difference]: Without dead ends: 9743 [2024-10-11 21:00:12,230 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 311 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 815 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=1084, Invalid=2338, Unknown=0, NotChecked=0, Total=3422 [2024-10-11 21:00:12,230 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 275 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:12,230 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 634 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 21:00:12,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9743 states. [2024-10-11 21:00:12,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9743 to 9666. [2024-10-11 21:00:12,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9666 states, 9173 states have (on average 1.087212471383408) internal successors, (9973), 9179 states have internal predecessors, (9973), 472 states have call successors, (472), 15 states have call predecessors, (472), 15 states have return successors, (472), 471 states have call predecessors, (472), 472 states have call successors, (472) [2024-10-11 21:00:12,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9666 states to 9666 states and 10917 transitions. [2024-10-11 21:00:12,808 INFO L78 Accepts]: Start accepts. Automaton has 9666 states and 10917 transitions. Word has length 156 [2024-10-11 21:00:12,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:12,808 INFO L471 AbstractCegarLoop]: Abstraction has 9666 states and 10917 transitions. [2024-10-11 21:00:12,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 7.96969696969697) internal successors, (263), 33 states have internal predecessors, (263), 15 states have call successors, (24), 8 states have call predecessors, (24), 8 states have return successors, (24), 15 states have call predecessors, (24), 15 states have call successors, (24) [2024-10-11 21:00:12,809 INFO L276 IsEmpty]: Start isEmpty. Operand 9666 states and 10917 transitions. [2024-10-11 21:00:12,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-10-11 21:00:12,811 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:12,812 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:12,829 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-10-11 21:00:13,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-10-11 21:00:13,012 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-11 21:00:13,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:13,013 INFO L85 PathProgramCache]: Analyzing trace with hash -159058851, now seen corresponding path program 1 times [2024-10-11 21:00:13,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:13,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82820751] [2024-10-11 21:00:13,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:13,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:13,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 21:00:13,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [575396387] [2024-10-11 21:00:13,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:13,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:13,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:00:13,040 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:00:13,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-10-11 21:00:13,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:13,110 INFO L255 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-10-11 21:00:13,112 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:00:13,647 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 15 proven. 289 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-10-11 21:00:13,648 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:00:14,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:14,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82820751] [2024-10-11 21:00:14,019 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 21:00:14,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [575396387] [2024-10-11 21:00:14,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [575396387] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:00:14,019 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-11 21:00:14,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2024-10-11 21:00:14,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204054189] [2024-10-11 21:00:14,019 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-11 21:00:14,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-11 21:00:14,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:14,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-11 21:00:14,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=361, Unknown=0, NotChecked=0, Total=420 [2024-10-11 21:00:14,021 INFO L87 Difference]: Start difference. First operand 9666 states and 10917 transitions. Second operand has 18 states, 17 states have (on average 7.352941176470588) internal successors, (125), 18 states have internal predecessors, (125), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-10-11 21:00:15,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:15,125 INFO L93 Difference]: Finished difference Result 10486 states and 11847 transitions. [2024-10-11 21:00:15,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-11 21:00:15,126 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 7.352941176470588) internal successors, (125), 18 states have internal predecessors, (125), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 156 [2024-10-11 21:00:15,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:15,154 INFO L225 Difference]: With dead ends: 10486 [2024-10-11 21:00:15,155 INFO L226 Difference]: Without dead ends: 10482 [2024-10-11 21:00:15,157 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=107, Invalid=543, Unknown=0, NotChecked=0, Total=650 [2024-10-11 21:00:15,158 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 83 mSDsluCounter, 635 mSDsCounter, 0 mSdLazyCounter, 1467 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 1472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:15,158 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 702 Invalid, 1472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1467 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-11 21:00:15,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10482 states. [2024-10-11 21:00:15,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10482 to 9637. [2024-10-11 21:00:15,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9637 states, 9145 states have (on average 1.0870420995079277) internal successors, (9941), 9151 states have internal predecessors, (9941), 471 states have call successors, (471), 15 states have call predecessors, (471), 15 states have return successors, (471), 470 states have call predecessors, (471), 471 states have call successors, (471) [2024-10-11 21:00:15,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9637 states to 9637 states and 10883 transitions. [2024-10-11 21:00:15,820 INFO L78 Accepts]: Start accepts. Automaton has 9637 states and 10883 transitions. Word has length 156 [2024-10-11 21:00:15,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:15,821 INFO L471 AbstractCegarLoop]: Abstraction has 9637 states and 10883 transitions. [2024-10-11 21:00:15,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 7.352941176470588) internal successors, (125), 18 states have internal predecessors, (125), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-10-11 21:00:15,822 INFO L276 IsEmpty]: Start isEmpty. Operand 9637 states and 10883 transitions. [2024-10-11 21:00:15,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-10-11 21:00:15,824 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:15,825 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:15,847 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-10-11 21:00:16,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-10-11 21:00:16,026 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-11 21:00:16,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:16,026 INFO L85 PathProgramCache]: Analyzing trace with hash 2100327679, now seen corresponding path program 2 times [2024-10-11 21:00:16,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:16,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379150775] [2024-10-11 21:00:16,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:16,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:16,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 21:00:16,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [131210720] [2024-10-11 21:00:16,051 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 21:00:16,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:16,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:00:16,053 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:00:16,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-10-11 21:00:16,118 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 21:00:16,119 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 21:00:16,120 INFO L255 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-11 21:00:16,122 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:00:16,403 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2024-10-11 21:00:16,403 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:00:17,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:17,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379150775] [2024-10-11 21:00:17,817 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 21:00:17,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [131210720] [2024-10-11 21:00:17,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [131210720] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:00:17,817 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-11 21:00:17,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-10-11 21:00:17,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506089625] [2024-10-11 21:00:17,818 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-11 21:00:17,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 21:00:17,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:17,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 21:00:17,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2024-10-11 21:00:17,819 INFO L87 Difference]: Start difference. First operand 9637 states and 10883 transitions. Second operand has 8 states, 7 states have (on average 13.714285714285714) internal successors, (96), 8 states have internal predecessors, (96), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-10-11 21:00:18,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:18,269 INFO L93 Difference]: Finished difference Result 10839 states and 12239 transitions. [2024-10-11 21:00:18,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 21:00:18,270 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.714285714285714) internal successors, (96), 8 states have internal predecessors, (96), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 156 [2024-10-11 21:00:18,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:18,290 INFO L225 Difference]: With dead ends: 10839 [2024-10-11 21:00:18,290 INFO L226 Difference]: Without dead ends: 10835 [2024-10-11 21:00:18,293 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2024-10-11 21:00:18,294 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 32 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:18,294 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 361 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 21:00:18,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10835 states. [2024-10-11 21:00:18,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10835 to 10502. [2024-10-11 21:00:18,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10502 states, 9970 states have (on average 1.0865596790371113) internal successors, (10833), 9976 states have internal predecessors, (10833), 511 states have call successors, (511), 15 states have call predecessors, (511), 15 states have return successors, (511), 510 states have call predecessors, (511), 511 states have call successors, (511) [2024-10-11 21:00:18,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10502 states to 10502 states and 11855 transitions. [2024-10-11 21:00:18,777 INFO L78 Accepts]: Start accepts. Automaton has 10502 states and 11855 transitions. Word has length 156 [2024-10-11 21:00:18,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:18,778 INFO L471 AbstractCegarLoop]: Abstraction has 10502 states and 11855 transitions. [2024-10-11 21:00:18,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.714285714285714) internal successors, (96), 8 states have internal predecessors, (96), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-10-11 21:00:18,778 INFO L276 IsEmpty]: Start isEmpty. Operand 10502 states and 11855 transitions. [2024-10-11 21:00:18,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-10-11 21:00:18,781 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:18,781 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:18,798 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-10-11 21:00:18,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-10-11 21:00:18,982 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-11 21:00:18,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:18,982 INFO L85 PathProgramCache]: Analyzing trace with hash 373877853, now seen corresponding path program 3 times [2024-10-11 21:00:18,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:18,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052611127] [2024-10-11 21:00:18,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:18,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:19,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 21:00:19,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2026428157] [2024-10-11 21:00:19,003 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-11 21:00:19,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:19,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:00:19,005 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:00:19,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-10-11 21:00:19,053 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-10-11 21:00:19,053 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 21:00:19,053 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 21:00:19,055 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:00:19,098 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 131 proven. 8 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2024-10-11 21:00:19,098 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:00:19,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:19,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052611127] [2024-10-11 21:00:19,338 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 21:00:19,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2026428157] [2024-10-11 21:00:19,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2026428157] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:00:19,339 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-11 21:00:19,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-10-11 21:00:19,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488036109] [2024-10-11 21:00:19,339 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-11 21:00:19,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 21:00:19,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:19,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 21:00:19,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-11 21:00:19,341 INFO L87 Difference]: Start difference. First operand 10502 states and 11855 transitions. Second operand has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-11 21:00:19,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:19,700 INFO L93 Difference]: Finished difference Result 11220 states and 12676 transitions. [2024-10-11 21:00:19,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 21:00:19,700 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 156 [2024-10-11 21:00:19,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:19,714 INFO L225 Difference]: With dead ends: 11220 [2024-10-11 21:00:19,714 INFO L226 Difference]: Without dead ends: 5816 [2024-10-11 21:00:19,724 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-10-11 21:00:19,725 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 19 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:19,725 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 125 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 21:00:19,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5816 states. [2024-10-11 21:00:20,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5816 to 5803. [2024-10-11 21:00:20,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5803 states, 5500 states have (on average 1.0869090909090908) internal successors, (5978), 5507 states have internal predecessors, (5978), 282 states have call successors, (282), 15 states have call predecessors, (282), 15 states have return successors, (282), 280 states have call predecessors, (282), 282 states have call successors, (282) [2024-10-11 21:00:20,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5803 states to 5803 states and 6542 transitions. [2024-10-11 21:00:20,018 INFO L78 Accepts]: Start accepts. Automaton has 5803 states and 6542 transitions. Word has length 156 [2024-10-11 21:00:20,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:20,019 INFO L471 AbstractCegarLoop]: Abstraction has 5803 states and 6542 transitions. [2024-10-11 21:00:20,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-11 21:00:20,019 INFO L276 IsEmpty]: Start isEmpty. Operand 5803 states and 6542 transitions. [2024-10-11 21:00:20,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-10-11 21:00:20,022 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:20,022 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:20,038 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-10-11 21:00:20,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-10-11 21:00:20,223 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-11 21:00:20,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:20,223 INFO L85 PathProgramCache]: Analyzing trace with hash 2050739889, now seen corresponding path program 2 times [2024-10-11 21:00:20,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:20,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251751541] [2024-10-11 21:00:20,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:20,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:20,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:20,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 21:00:20,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:20,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 21:00:20,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:20,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 21:00:20,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:20,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-11 21:00:20,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:20,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 21:00:20,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:20,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-11 21:00:20,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:20,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-11 21:00:20,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:20,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-11 21:00:20,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:20,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-10-11 21:00:20,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:20,390 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 0 proven. 369 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-10-11 21:00:20,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:20,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251751541] [2024-10-11 21:00:20,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251751541] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:00:20,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [655731710] [2024-10-11 21:00:20,391 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 21:00:20,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:20,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:00:20,393 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:00:20,394 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-10-11 21:00:20,486 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 21:00:20,486 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 21:00:20,487 INFO L255 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 21:00:20,489 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:00:20,630 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 0 proven. 369 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-10-11 21:00:20,631 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:00:20,869 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 0 proven. 369 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-10-11 21:00:20,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [655731710] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:00:20,870 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 21:00:20,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 16 [2024-10-11 21:00:20,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877079027] [2024-10-11 21:00:20,871 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 21:00:20,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-11 21:00:20,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:20,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-11 21:00:20,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2024-10-11 21:00:20,872 INFO L87 Difference]: Start difference. First operand 5803 states and 6542 transitions. Second operand has 17 states, 16 states have (on average 16.75) internal successors, (268), 17 states have internal predecessors, (268), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2024-10-11 21:00:21,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:21,246 INFO L93 Difference]: Finished difference Result 7547 states and 8712 transitions. [2024-10-11 21:00:21,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-11 21:00:21,246 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 16.75) internal successors, (268), 17 states have internal predecessors, (268), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) Word has length 168 [2024-10-11 21:00:21,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:21,260 INFO L225 Difference]: With dead ends: 7547 [2024-10-11 21:00:21,260 INFO L226 Difference]: Without dead ends: 7546 [2024-10-11 21:00:21,266 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 345 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2024-10-11 21:00:21,268 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 96 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:21,268 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 268 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 21:00:21,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7546 states. [2024-10-11 21:00:21,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7546 to 7494. [2024-10-11 21:00:21,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7494 states, 7105 states have (on average 1.0997888810696692) internal successors, (7814), 7111 states have internal predecessors, (7814), 368 states have call successors, (368), 15 states have call predecessors, (368), 15 states have return successors, (368), 367 states have call predecessors, (368), 368 states have call successors, (368) [2024-10-11 21:00:21,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7494 states to 7494 states and 8550 transitions. [2024-10-11 21:00:21,655 INFO L78 Accepts]: Start accepts. Automaton has 7494 states and 8550 transitions. Word has length 168 [2024-10-11 21:00:21,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:21,656 INFO L471 AbstractCegarLoop]: Abstraction has 7494 states and 8550 transitions. [2024-10-11 21:00:21,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 16.75) internal successors, (268), 17 states have internal predecessors, (268), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2024-10-11 21:00:21,656 INFO L276 IsEmpty]: Start isEmpty. Operand 7494 states and 8550 transitions. [2024-10-11 21:00:21,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-10-11 21:00:21,659 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:21,659 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:21,677 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-10-11 21:00:21,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,25 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:21,860 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-11 21:00:21,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:21,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1993304336, now seen corresponding path program 3 times [2024-10-11 21:00:21,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:21,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103827039] [2024-10-11 21:00:21,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:21,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:21,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:22,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 21:00:22,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:22,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 21:00:22,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:22,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 21:00:22,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:22,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-11 21:00:22,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:22,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 21:00:22,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:22,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-11 21:00:22,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:22,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-11 21:00:22,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:22,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-11 21:00:22,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:22,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-10-11 21:00:22,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:22,059 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 116 proven. 285 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-10-11 21:00:22,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:22,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103827039] [2024-10-11 21:00:22,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103827039] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:00:22,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [240979145] [2024-10-11 21:00:22,060 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-11 21:00:22,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:22,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:00:22,062 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:00:22,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-10-11 21:00:22,126 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-10-11 21:00:22,126 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 21:00:22,130 INFO L255 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-11 21:00:22,132 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:00:22,455 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 0 proven. 299 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-10-11 21:00:22,455 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:00:22,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [240979145] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:00:22,814 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-11 21:00:22,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 17 [2024-10-11 21:00:22,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091020392] [2024-10-11 21:00:22,814 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-11 21:00:22,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-11 21:00:22,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:22,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-11 21:00:22,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=311, Unknown=0, NotChecked=0, Total=380 [2024-10-11 21:00:22,816 INFO L87 Difference]: Start difference. First operand 7494 states and 8550 transitions. Second operand has 17 states, 17 states have (on average 13.176470588235293) internal successors, (224), 17 states have internal predecessors, (224), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2024-10-11 21:00:24,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:24,259 INFO L93 Difference]: Finished difference Result 12555 states and 14509 transitions. [2024-10-11 21:00:24,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-10-11 21:00:24,260 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 13.176470588235293) internal successors, (224), 17 states have internal predecessors, (224), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) Word has length 179 [2024-10-11 21:00:24,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:24,279 INFO L225 Difference]: With dead ends: 12555 [2024-10-11 21:00:24,279 INFO L226 Difference]: Without dead ends: 9410 [2024-10-11 21:00:24,287 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=268, Invalid=1538, Unknown=0, NotChecked=0, Total=1806 [2024-10-11 21:00:24,287 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 342 mSDsluCounter, 1068 mSDsCounter, 0 mSdLazyCounter, 1958 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 1196 SdHoareTripleChecker+Invalid, 1987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1958 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:24,287 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [342 Valid, 1196 Invalid, 1987 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1958 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-11 21:00:24,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9410 states. [2024-10-11 21:00:24,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9410 to 7727. [2024-10-11 21:00:24,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7727 states, 7321 states have (on average 1.0947957929244638) internal successors, (8015), 7327 states have internal predecessors, (8015), 385 states have call successors, (385), 15 states have call predecessors, (385), 15 states have return successors, (385), 384 states have call predecessors, (385), 385 states have call successors, (385) [2024-10-11 21:00:24,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7727 states to 7727 states and 8785 transitions. [2024-10-11 21:00:24,675 INFO L78 Accepts]: Start accepts. Automaton has 7727 states and 8785 transitions. Word has length 179 [2024-10-11 21:00:24,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:24,676 INFO L471 AbstractCegarLoop]: Abstraction has 7727 states and 8785 transitions. [2024-10-11 21:00:24,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 13.176470588235293) internal successors, (224), 17 states have internal predecessors, (224), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2024-10-11 21:00:24,676 INFO L276 IsEmpty]: Start isEmpty. Operand 7727 states and 8785 transitions. [2024-10-11 21:00:24,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-10-11 21:00:24,679 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:24,679 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:24,695 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-10-11 21:00:24,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,26 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:24,884 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-11 21:00:24,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:24,884 INFO L85 PathProgramCache]: Analyzing trace with hash 440755932, now seen corresponding path program 2 times [2024-10-11 21:00:24,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:24,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634491354] [2024-10-11 21:00:24,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:24,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:24,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:25,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 21:00:25,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:25,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 21:00:25,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:25,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 21:00:25,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:25,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-11 21:00:25,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:25,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 21:00:25,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:25,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-11 21:00:25,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:25,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-11 21:00:25,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:25,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-11 21:00:25,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:25,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-10-11 21:00:25,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:25,250 INFO L134 CoverageAnalysis]: Checked inductivity of 519 backedges. 18 proven. 431 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-10-11 21:00:25,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:25,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634491354] [2024-10-11 21:00:25,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634491354] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:00:25,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1059821744] [2024-10-11 21:00:25,251 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 21:00:25,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:25,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:00:25,253 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:00:25,255 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-10-11 21:00:25,329 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 21:00:25,329 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 21:00:25,331 INFO L255 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-11 21:00:25,334 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:00:25,542 INFO L134 CoverageAnalysis]: Checked inductivity of 519 backedges. 18 proven. 431 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-10-11 21:00:25,542 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:00:25,993 INFO L134 CoverageAnalysis]: Checked inductivity of 519 backedges. 18 proven. 431 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-10-11 21:00:25,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1059821744] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:00:25,994 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 21:00:25,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 22 [2024-10-11 21:00:25,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051562458] [2024-10-11 21:00:25,995 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 21:00:25,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-11 21:00:25,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:25,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-11 21:00:25,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2024-10-11 21:00:25,998 INFO L87 Difference]: Start difference. First operand 7727 states and 8785 transitions. Second operand has 23 states, 22 states have (on average 12.818181818181818) internal successors, (282), 23 states have internal predecessors, (282), 15 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2024-10-11 21:00:27,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:27,215 INFO L93 Difference]: Finished difference Result 8955 states and 10220 transitions. [2024-10-11 21:00:27,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2024-10-11 21:00:27,216 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 12.818181818181818) internal successors, (282), 23 states have internal predecessors, (282), 15 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) Word has length 181 [2024-10-11 21:00:27,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:27,231 INFO L225 Difference]: With dead ends: 8955 [2024-10-11 21:00:27,232 INFO L226 Difference]: Without dead ends: 8949 [2024-10-11 21:00:27,237 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 424 GetRequests, 368 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 832 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1046, Invalid=2260, Unknown=0, NotChecked=0, Total=3306 [2024-10-11 21:00:27,238 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 236 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:27,238 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 275 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 21:00:27,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8949 states. [2024-10-11 21:00:27,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8949 to 8857. [2024-10-11 21:00:27,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8857 states, 8403 states have (on average 1.0700940140426038) internal successors, (8992), 8409 states have internal predecessors, (8992), 433 states have call successors, (433), 15 states have call predecessors, (433), 15 states have return successors, (433), 432 states have call predecessors, (433), 433 states have call successors, (433) [2024-10-11 21:00:27,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8857 states to 8857 states and 9858 transitions. [2024-10-11 21:00:27,749 INFO L78 Accepts]: Start accepts. Automaton has 8857 states and 9858 transitions. Word has length 181 [2024-10-11 21:00:27,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:27,750 INFO L471 AbstractCegarLoop]: Abstraction has 8857 states and 9858 transitions. [2024-10-11 21:00:27,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 12.818181818181818) internal successors, (282), 23 states have internal predecessors, (282), 15 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2024-10-11 21:00:27,751 INFO L276 IsEmpty]: Start isEmpty. Operand 8857 states and 9858 transitions. [2024-10-11 21:00:27,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-10-11 21:00:27,754 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:27,754 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:27,771 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-10-11 21:00:27,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,27 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:27,959 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-11 21:00:27,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:27,959 INFO L85 PathProgramCache]: Analyzing trace with hash 145755177, now seen corresponding path program 4 times [2024-10-11 21:00:27,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:27,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370367078] [2024-10-11 21:00:27,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:27,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:27,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 21:00:27,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [610242138] [2024-10-11 21:00:27,982 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-11 21:00:27,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:27,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:00:27,984 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:00:27,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-10-11 21:00:28,071 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-11 21:00:28,071 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 21:00:28,074 INFO L255 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-10-11 21:00:28,077 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:00:29,388 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 31 proven. 537 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-10-11 21:00:29,389 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:00:29,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:29,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370367078] [2024-10-11 21:00:29,595 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 21:00:29,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [610242138] [2024-10-11 21:00:29,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [610242138] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:00:29,595 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-11 21:00:29,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2024-10-11 21:00:29,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057484050] [2024-10-11 21:00:29,596 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-11 21:00:29,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-11 21:00:29,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:29,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-11 21:00:29,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=436, Unknown=0, NotChecked=0, Total=506 [2024-10-11 21:00:29,597 INFO L87 Difference]: Start difference. First operand 8857 states and 9858 transitions. Second operand has 20 states, 19 states have (on average 8.473684210526315) internal successors, (161), 20 states have internal predecessors, (161), 9 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-10-11 21:00:30,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:30,929 INFO L93 Difference]: Finished difference Result 9511 states and 10589 transitions. [2024-10-11 21:00:30,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-11 21:00:30,929 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 8.473684210526315) internal successors, (161), 20 states have internal predecessors, (161), 9 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 202 [2024-10-11 21:00:30,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:30,941 INFO L225 Difference]: With dead ends: 9511 [2024-10-11 21:00:30,941 INFO L226 Difference]: Without dead ends: 9507 [2024-10-11 21:00:30,943 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=121, Invalid=749, Unknown=0, NotChecked=0, Total=870 [2024-10-11 21:00:30,943 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 62 mSDsluCounter, 771 mSDsCounter, 0 mSdLazyCounter, 1832 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 851 SdHoareTripleChecker+Invalid, 1837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:30,944 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 851 Invalid, 1837 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1832 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-11 21:00:30,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9507 states. [2024-10-11 21:00:31,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9507 to 8917. [2024-10-11 21:00:31,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8917 states, 8463 states have (on average 1.0694789081885856) internal successors, (9051), 8469 states have internal predecessors, (9051), 433 states have call successors, (433), 15 states have call predecessors, (433), 15 states have return successors, (433), 432 states have call predecessors, (433), 433 states have call successors, (433) [2024-10-11 21:00:31,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8917 states to 8917 states and 9917 transitions. [2024-10-11 21:00:31,371 INFO L78 Accepts]: Start accepts. Automaton has 8917 states and 9917 transitions. Word has length 202 [2024-10-11 21:00:31,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:31,373 INFO L471 AbstractCegarLoop]: Abstraction has 8917 states and 9917 transitions. [2024-10-11 21:00:31,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 8.473684210526315) internal successors, (161), 20 states have internal predecessors, (161), 9 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-10-11 21:00:31,374 INFO L276 IsEmpty]: Start isEmpty. Operand 8917 states and 9917 transitions. [2024-10-11 21:00:31,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-10-11 21:00:31,377 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:31,377 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:31,395 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-10-11 21:00:31,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,28 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:31,579 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-11 21:00:31,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:31,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1333302805, now seen corresponding path program 5 times [2024-10-11 21:00:31,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:31,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444391460] [2024-10-11 21:00:31,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:31,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:31,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 21:00:31,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [249423802] [2024-10-11 21:00:31,608 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-11 21:00:31,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:31,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:00:31,610 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:00:31,611 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-10-11 21:00:31,697 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2024-10-11 21:00:31,697 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 21:00:31,699 INFO L255 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-10-11 21:00:31,702 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:00:33,397 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 18 proven. 522 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-10-11 21:00:33,397 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:00:33,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:33,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444391460] [2024-10-11 21:00:33,815 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 21:00:33,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [249423802] [2024-10-11 21:00:33,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [249423802] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:00:33,815 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-11 21:00:33,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2024-10-11 21:00:33,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37532288] [2024-10-11 21:00:33,815 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-11 21:00:33,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-10-11 21:00:33,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:33,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-10-11 21:00:33,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=1033, Unknown=0, NotChecked=0, Total=1190 [2024-10-11 21:00:33,817 INFO L87 Difference]: Start difference. First operand 8917 states and 9917 transitions. Second operand has 31 states, 29 states have (on average 5.655172413793103) internal successors, (164), 29 states have internal predecessors, (164), 10 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-11 21:00:37,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:37,088 INFO L93 Difference]: Finished difference Result 9571 states and 10705 transitions. [2024-10-11 21:00:37,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2024-10-11 21:00:37,088 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 29 states have (on average 5.655172413793103) internal successors, (164), 29 states have internal predecessors, (164), 10 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Word has length 202 [2024-10-11 21:00:37,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:37,099 INFO L225 Difference]: With dead ends: 9571 [2024-10-11 21:00:37,099 INFO L226 Difference]: Without dead ends: 9570 [2024-10-11 21:00:37,102 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2542 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1249, Invalid=6941, Unknown=0, NotChecked=0, Total=8190 [2024-10-11 21:00:37,102 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 228 mSDsluCounter, 622 mSDsCounter, 0 mSdLazyCounter, 1598 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 668 SdHoareTripleChecker+Invalid, 1629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:37,103 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 668 Invalid, 1629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1598 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-11 21:00:37,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9570 states. [2024-10-11 21:00:37,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9570 to 8917. [2024-10-11 21:00:37,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8917 states, 8463 states have (on average 1.0693607467801016) internal successors, (9050), 8469 states have internal predecessors, (9050), 433 states have call successors, (433), 15 states have call predecessors, (433), 15 states have return successors, (433), 432 states have call predecessors, (433), 433 states have call successors, (433) [2024-10-11 21:00:37,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8917 states to 8917 states and 9916 transitions. [2024-10-11 21:00:37,585 INFO L78 Accepts]: Start accepts. Automaton has 8917 states and 9916 transitions. Word has length 202 [2024-10-11 21:00:37,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:37,585 INFO L471 AbstractCegarLoop]: Abstraction has 8917 states and 9916 transitions. [2024-10-11 21:00:37,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 29 states have (on average 5.655172413793103) internal successors, (164), 29 states have internal predecessors, (164), 10 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-11 21:00:37,586 INFO L276 IsEmpty]: Start isEmpty. Operand 8917 states and 9916 transitions. [2024-10-11 21:00:37,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-10-11 21:00:37,590 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:37,590 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:37,607 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-10-11 21:00:37,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,29 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:37,796 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-11 21:00:37,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:37,796 INFO L85 PathProgramCache]: Analyzing trace with hash -773358757, now seen corresponding path program 2 times [2024-10-11 21:00:37,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:37,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12390440] [2024-10-11 21:00:37,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:37,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:37,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:37,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 21:00:37,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:37,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 21:00:37,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:37,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 21:00:37,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:37,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-11 21:00:37,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:37,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 21:00:37,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:37,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-11 21:00:37,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:38,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-11 21:00:38,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:38,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-11 21:00:38,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:38,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-10-11 21:00:38,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:38,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-10-11 21:00:38,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:38,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2024-10-11 21:00:38,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:38,015 INFO L134 CoverageAnalysis]: Checked inductivity of 816 backedges. 0 proven. 668 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-10-11 21:00:38,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:38,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12390440] [2024-10-11 21:00:38,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12390440] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:00:38,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [168004558] [2024-10-11 21:00:38,016 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 21:00:38,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:38,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:00:38,018 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:00:38,019 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-10-11 21:00:38,099 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 21:00:38,099 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 21:00:38,103 INFO L255 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-11 21:00:38,107 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:00:38,291 INFO L134 CoverageAnalysis]: Checked inductivity of 816 backedges. 0 proven. 668 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-10-11 21:00:38,292 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:00:38,550 INFO L134 CoverageAnalysis]: Checked inductivity of 816 backedges. 0 proven. 668 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-10-11 21:00:38,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [168004558] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:00:38,550 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 21:00:38,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2024-10-11 21:00:38,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027545846] [2024-10-11 21:00:38,550 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 21:00:38,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-10-11 21:00:38,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:38,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-10-11 21:00:38,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2024-10-11 21:00:38,552 INFO L87 Difference]: Start difference. First operand 8917 states and 9916 transitions. Second operand has 21 states, 20 states have (on average 17.3) internal successors, (346), 21 states have internal predecessors, (346), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) [2024-10-11 21:00:39,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:39,316 INFO L93 Difference]: Finished difference Result 12927 states and 14688 transitions. [2024-10-11 21:00:39,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-11 21:00:39,317 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 17.3) internal successors, (346), 21 states have internal predecessors, (346), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) Word has length 217 [2024-10-11 21:00:39,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:39,339 INFO L225 Difference]: With dead ends: 12927 [2024-10-11 21:00:39,339 INFO L226 Difference]: Without dead ends: 12926 [2024-10-11 21:00:39,346 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 464 GetRequests, 445 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2024-10-11 21:00:39,347 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 558 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:39,347 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [558 Valid, 350 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 21:00:39,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12926 states. [2024-10-11 21:00:40,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12926 to 12808. [2024-10-11 21:00:40,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12808 states, 12149 states have (on average 1.0924355914067) internal successors, (13272), 12154 states have internal predecessors, (13272), 638 states have call successors, (638), 15 states have call predecessors, (638), 15 states have return successors, (638), 638 states have call predecessors, (638), 638 states have call successors, (638) [2024-10-11 21:00:40,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12808 states to 12808 states and 14548 transitions. [2024-10-11 21:00:40,057 INFO L78 Accepts]: Start accepts. Automaton has 12808 states and 14548 transitions. Word has length 217 [2024-10-11 21:00:40,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:40,058 INFO L471 AbstractCegarLoop]: Abstraction has 12808 states and 14548 transitions. [2024-10-11 21:00:40,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 17.3) internal successors, (346), 21 states have internal predecessors, (346), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) [2024-10-11 21:00:40,058 INFO L276 IsEmpty]: Start isEmpty. Operand 12808 states and 14548 transitions. [2024-10-11 21:00:40,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-10-11 21:00:40,063 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:40,063 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:40,080 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-10-11 21:00:40,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,30 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:40,264 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-11 21:00:40,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:40,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1559611088, now seen corresponding path program 6 times [2024-10-11 21:00:40,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:40,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066600297] [2024-10-11 21:00:40,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:40,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:40,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:40,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 21:00:40,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:40,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 21:00:40,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:40,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 21:00:40,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:40,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-11 21:00:40,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:40,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 21:00:40,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:40,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-11 21:00:40,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:40,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-11 21:00:40,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:40,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-11 21:00:40,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:40,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-10-11 21:00:40,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:40,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-10-11 21:00:40,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:40,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2024-10-11 21:00:40,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:40,517 INFO L134 CoverageAnalysis]: Checked inductivity of 830 backedges. 232 proven. 450 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-10-11 21:00:40,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:40,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066600297] [2024-10-11 21:00:40,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066600297] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:00:40,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1053574315] [2024-10-11 21:00:40,518 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-11 21:00:40,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:40,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:00:40,519 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:00:40,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-10-11 21:00:40,608 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2024-10-11 21:00:40,608 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 21:00:40,609 INFO L255 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-11 21:00:40,612 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:00:41,103 INFO L134 CoverageAnalysis]: Checked inductivity of 830 backedges. 0 proven. 508 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked. [2024-10-11 21:00:41,104 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:00:41,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1053574315] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:00:41,441 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-11 21:00:41,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 19 [2024-10-11 21:00:41,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582853978] [2024-10-11 21:00:41,442 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-11 21:00:41,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-11 21:00:41,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:41,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-11 21:00:41,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2024-10-11 21:00:41,443 INFO L87 Difference]: Start difference. First operand 12808 states and 14548 transitions. Second operand has 19 states, 19 states have (on average 14.631578947368421) internal successors, (278), 19 states have internal predecessors, (278), 15 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2024-10-11 21:00:42,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:42,687 INFO L93 Difference]: Finished difference Result 23655 states and 27419 transitions. [2024-10-11 21:00:42,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-10-11 21:00:42,688 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 14.631578947368421) internal successors, (278), 19 states have internal predecessors, (278), 15 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) Word has length 225 [2024-10-11 21:00:42,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:42,716 INFO L225 Difference]: With dead ends: 23655 [2024-10-11 21:00:42,716 INFO L226 Difference]: Without dead ends: 16736 [2024-10-11 21:00:42,730 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=213, Invalid=909, Unknown=0, NotChecked=0, Total=1122 [2024-10-11 21:00:42,731 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 231 mSDsluCounter, 793 mSDsCounter, 0 mSdLazyCounter, 1433 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 928 SdHoareTripleChecker+Invalid, 1446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:42,731 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 928 Invalid, 1446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1433 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-11 21:00:42,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16736 states. [2024-10-11 21:00:43,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16736 to 12768. [2024-10-11 21:00:43,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12768 states, 12099 states have (on average 1.0980246301347218) internal successors, (13285), 12104 states have internal predecessors, (13285), 648 states have call successors, (648), 15 states have call predecessors, (648), 15 states have return successors, (648), 648 states have call predecessors, (648), 648 states have call successors, (648) [2024-10-11 21:00:43,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12768 states to 12768 states and 14581 transitions. [2024-10-11 21:00:43,315 INFO L78 Accepts]: Start accepts. Automaton has 12768 states and 14581 transitions. Word has length 225 [2024-10-11 21:00:43,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:43,316 INFO L471 AbstractCegarLoop]: Abstraction has 12768 states and 14581 transitions. [2024-10-11 21:00:43,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 14.631578947368421) internal successors, (278), 19 states have internal predecessors, (278), 15 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2024-10-11 21:00:43,316 INFO L276 IsEmpty]: Start isEmpty. Operand 12768 states and 14581 transitions. [2024-10-11 21:00:43,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-10-11 21:00:43,319 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:43,319 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:43,336 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-10-11 21:00:43,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,31 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:43,520 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-11 21:00:43,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:43,521 INFO L85 PathProgramCache]: Analyzing trace with hash 697380550, now seen corresponding path program 7 times [2024-10-11 21:00:43,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:43,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771577615] [2024-10-11 21:00:43,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:43,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:43,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 21:00:43,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1549012646] [2024-10-11 21:00:43,552 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-10-11 21:00:43,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:43,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:00:43,554 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:00:43,555 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-10-11 21:00:43,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:43,638 INFO L255 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-10-11 21:00:43,641 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:00:44,798 INFO L134 CoverageAnalysis]: Checked inductivity of 814 backedges. 36 proven. 672 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-10-11 21:00:44,798 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:00:45,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:45,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771577615] [2024-10-11 21:00:45,311 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 21:00:45,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1549012646] [2024-10-11 21:00:45,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1549012646] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:00:45,312 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-11 21:00:45,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2024-10-11 21:00:45,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207417466] [2024-10-11 21:00:45,312 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-11 21:00:45,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-10-11 21:00:45,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:45,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-10-11 21:00:45,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=700, Unknown=0, NotChecked=0, Total=812 [2024-10-11 21:00:45,313 INFO L87 Difference]: Start difference. First operand 12768 states and 14581 transitions. Second operand has 26 states, 25 states have (on average 7.16) internal successors, (179), 26 states have internal predecessors, (179), 10 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-10-11 21:00:46,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:46,783 INFO L93 Difference]: Finished difference Result 13195 states and 15059 transitions. [2024-10-11 21:00:46,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-10-11 21:00:46,784 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 7.16) internal successors, (179), 26 states have internal predecessors, (179), 10 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) Word has length 225 [2024-10-11 21:00:46,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:46,806 INFO L225 Difference]: With dead ends: 13195 [2024-10-11 21:00:46,806 INFO L226 Difference]: Without dead ends: 13194 [2024-10-11 21:00:46,813 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=294, Invalid=1512, Unknown=0, NotChecked=0, Total=1806 [2024-10-11 21:00:46,814 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 173 mSDsluCounter, 803 mSDsCounter, 0 mSdLazyCounter, 1915 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 867 SdHoareTripleChecker+Invalid, 1925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:46,814 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 867 Invalid, 1925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1915 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-11 21:00:46,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13194 states. [2024-10-11 21:00:47,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13194 to 12768. [2024-10-11 21:00:47,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12768 states, 12099 states have (on average 1.0979419786759237) internal successors, (13284), 12104 states have internal predecessors, (13284), 648 states have call successors, (648), 15 states have call predecessors, (648), 15 states have return successors, (648), 648 states have call predecessors, (648), 648 states have call successors, (648) [2024-10-11 21:00:47,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12768 states to 12768 states and 14580 transitions. [2024-10-11 21:00:47,559 INFO L78 Accepts]: Start accepts. Automaton has 12768 states and 14580 transitions. Word has length 225 [2024-10-11 21:00:47,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:47,560 INFO L471 AbstractCegarLoop]: Abstraction has 12768 states and 14580 transitions. [2024-10-11 21:00:47,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 7.16) internal successors, (179), 26 states have internal predecessors, (179), 10 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-10-11 21:00:47,560 INFO L276 IsEmpty]: Start isEmpty. Operand 12768 states and 14580 transitions. [2024-10-11 21:00:47,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-10-11 21:00:47,563 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:47,563 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:47,576 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2024-10-11 21:00:47,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-10-11 21:00:47,763 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-11 21:00:47,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:47,764 INFO L85 PathProgramCache]: Analyzing trace with hash 470995812, now seen corresponding path program 8 times [2024-10-11 21:00:47,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:47,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555318453] [2024-10-11 21:00:47,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:47,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:47,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:47,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 21:00:47,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:47,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 21:00:47,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:47,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 21:00:47,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:47,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-11 21:00:47,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:47,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 21:00:47,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:47,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-11 21:00:47,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:47,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-11 21:00:47,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:47,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-11 21:00:47,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:47,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-10-11 21:00:47,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:47,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-10-11 21:00:47,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:47,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2024-10-11 21:00:47,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:47,941 INFO L134 CoverageAnalysis]: Checked inductivity of 806 backedges. 183 proven. 373 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2024-10-11 21:00:47,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:47,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555318453] [2024-10-11 21:00:47,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555318453] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:00:47,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [779901291] [2024-10-11 21:00:47,941 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 21:00:47,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:47,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:00:47,943 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:00:47,945 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-10-11 21:00:48,023 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 21:00:48,023 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 21:00:48,026 INFO L255 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-11 21:00:48,029 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:00:48,314 INFO L134 CoverageAnalysis]: Checked inductivity of 806 backedges. 315 proven. 241 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2024-10-11 21:00:48,314 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:00:48,519 INFO L134 CoverageAnalysis]: Checked inductivity of 806 backedges. 115 proven. 441 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2024-10-11 21:00:48,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [779901291] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:00:48,520 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 21:00:48,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 13 [2024-10-11 21:00:48,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982650300] [2024-10-11 21:00:48,520 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 21:00:48,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 21:00:48,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:48,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 21:00:48,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-10-11 21:00:48,522 INFO L87 Difference]: Start difference. First operand 12768 states and 14580 transitions. Second operand has 13 states, 13 states have (on average 16.53846153846154) internal successors, (215), 13 states have internal predecessors, (215), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2024-10-11 21:00:49,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:49,116 INFO L93 Difference]: Finished difference Result 15953 states and 18266 transitions. [2024-10-11 21:00:49,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 21:00:49,116 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 16.53846153846154) internal successors, (215), 13 states have internal predecessors, (215), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) Word has length 225 [2024-10-11 21:00:49,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:49,136 INFO L225 Difference]: With dead ends: 15953 [2024-10-11 21:00:49,136 INFO L226 Difference]: Without dead ends: 12314 [2024-10-11 21:00:49,144 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 480 GetRequests, 462 SyntacticMatches, 5 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2024-10-11 21:00:49,144 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 56 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:49,145 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 245 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 21:00:49,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12314 states. [2024-10-11 21:00:49,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12314 to 11527. [2024-10-11 21:00:49,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11527 states, 10917 states have (on average 1.1057066959787487) internal successors, (12071), 10922 states have internal predecessors, (12071), 589 states have call successors, (589), 15 states have call predecessors, (589), 15 states have return successors, (589), 589 states have call predecessors, (589), 589 states have call successors, (589) [2024-10-11 21:00:49,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11527 states to 11527 states and 13249 transitions. [2024-10-11 21:00:49,721 INFO L78 Accepts]: Start accepts. Automaton has 11527 states and 13249 transitions. Word has length 225 [2024-10-11 21:00:49,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:49,722 INFO L471 AbstractCegarLoop]: Abstraction has 11527 states and 13249 transitions. [2024-10-11 21:00:49,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 16.53846153846154) internal successors, (215), 13 states have internal predecessors, (215), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2024-10-11 21:00:49,722 INFO L276 IsEmpty]: Start isEmpty. Operand 11527 states and 13249 transitions. [2024-10-11 21:00:49,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2024-10-11 21:00:49,725 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:49,725 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:49,741 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-10-11 21:00:49,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-10-11 21:00:49,930 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-11 21:00:49,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:49,930 INFO L85 PathProgramCache]: Analyzing trace with hash 992403485, now seen corresponding path program 9 times [2024-10-11 21:00:49,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:49,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585209506] [2024-10-11 21:00:49,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:49,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:49,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 21:00:49,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1482277182] [2024-10-11 21:00:49,970 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-11 21:00:49,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:49,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:00:49,972 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:00:49,973 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-10-11 21:00:50,053 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-10-11 21:00:50,053 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 21:00:50,058 INFO L255 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-11 21:00:50,061 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:00:50,388 INFO L134 CoverageAnalysis]: Checked inductivity of 1035 backedges. 0 proven. 677 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked. [2024-10-11 21:00:50,388 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:00:50,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:50,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585209506] [2024-10-11 21:00:50,685 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 21:00:50,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1482277182] [2024-10-11 21:00:50,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1482277182] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:00:50,685 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-11 21:00:50,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-10-11 21:00:50,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47516174] [2024-10-11 21:00:50,685 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-11 21:00:50,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 21:00:50,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:50,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 21:00:50,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-10-11 21:00:50,686 INFO L87 Difference]: Start difference. First operand 11527 states and 13249 transitions. Second operand has 10 states, 9 states have (on average 14.11111111111111) internal successors, (127), 10 states have internal predecessors, (127), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-10-11 21:00:51,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:51,713 INFO L93 Difference]: Finished difference Result 18490 states and 21506 transitions. [2024-10-11 21:00:51,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-11 21:00:51,714 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 14.11111111111111) internal successors, (127), 10 states have internal predecessors, (127), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 248 [2024-10-11 21:00:51,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:51,728 INFO L225 Difference]: With dead ends: 18490 [2024-10-11 21:00:51,728 INFO L226 Difference]: Without dead ends: 11723 [2024-10-11 21:00:51,739 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=446, Unknown=0, NotChecked=0, Total=552 [2024-10-11 21:00:51,740 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 128 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 1198 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 753 SdHoareTripleChecker+Invalid, 1208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:51,740 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 753 Invalid, 1208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1198 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-11 21:00:51,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11723 states. [2024-10-11 21:00:52,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11723 to 11362. [2024-10-11 21:00:52,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11362 states, 10761 states have (on average 1.106309822507202) internal successors, (11905), 10766 states have internal predecessors, (11905), 580 states have call successors, (580), 15 states have call predecessors, (580), 15 states have return successors, (580), 580 states have call predecessors, (580), 580 states have call successors, (580) [2024-10-11 21:00:52,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11362 states to 11362 states and 13065 transitions. [2024-10-11 21:00:52,167 INFO L78 Accepts]: Start accepts. Automaton has 11362 states and 13065 transitions. Word has length 248 [2024-10-11 21:00:52,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:52,167 INFO L471 AbstractCegarLoop]: Abstraction has 11362 states and 13065 transitions. [2024-10-11 21:00:52,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 14.11111111111111) internal successors, (127), 10 states have internal predecessors, (127), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-10-11 21:00:52,168 INFO L276 IsEmpty]: Start isEmpty. Operand 11362 states and 13065 transitions. [2024-10-11 21:00:52,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2024-10-11 21:00:52,171 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:52,171 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:52,188 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2024-10-11 21:00:52,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38,34 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:52,372 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-11 21:00:52,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:52,373 INFO L85 PathProgramCache]: Analyzing trace with hash 992886955, now seen corresponding path program 10 times [2024-10-11 21:00:52,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:52,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755143622] [2024-10-11 21:00:52,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:52,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:52,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 21:00:52,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1234297762] [2024-10-11 21:00:52,407 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-11 21:00:52,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:52,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:00:52,409 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:00:52,411 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-10-11 21:00:52,505 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-11 21:00:52,505 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 21:00:52,508 INFO L255 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-10-11 21:00:52,511 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:00:54,296 INFO L134 CoverageAnalysis]: Checked inductivity of 999 backedges. 25 proven. 820 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-10-11 21:00:54,296 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:00:54,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:54,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755143622] [2024-10-11 21:00:54,797 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 21:00:54,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1234297762] [2024-10-11 21:00:54,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1234297762] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:00:54,797 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-11 21:00:54,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2024-10-11 21:00:54,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146991554] [2024-10-11 21:00:54,797 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-11 21:00:54,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-10-11 21:00:54,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:54,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-10-11 21:00:54,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=206, Invalid=1054, Unknown=0, NotChecked=0, Total=1260 [2024-10-11 21:00:54,798 INFO L87 Difference]: Start difference. First operand 11362 states and 13065 transitions. Second operand has 33 states, 31 states have (on average 6.451612903225806) internal successors, (200), 31 states have internal predecessors, (200), 12 states have call successors, (12), 1 states have call predecessors, (12), 3 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-11 21:00:56,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:56,672 INFO L93 Difference]: Finished difference Result 11846 states and 13609 transitions. [2024-10-11 21:00:56,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-10-11 21:00:56,673 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 31 states have (on average 6.451612903225806) internal successors, (200), 31 states have internal predecessors, (200), 12 states have call successors, (12), 1 states have call predecessors, (12), 3 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) Word has length 248 [2024-10-11 21:00:56,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:56,690 INFO L225 Difference]: With dead ends: 11846 [2024-10-11 21:00:56,691 INFO L226 Difference]: Without dead ends: 11845 [2024-10-11 21:00:56,697 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1371 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=982, Invalid=3848, Unknown=0, NotChecked=0, Total=4830 [2024-10-11 21:00:56,698 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 254 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 1390 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 1430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:56,698 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 651 Invalid, 1430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1390 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-11 21:00:56,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11845 states. [2024-10-11 21:00:57,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11845 to 11362. [2024-10-11 21:00:57,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11362 states, 10761 states have (on average 1.1062168943406747) internal successors, (11904), 10766 states have internal predecessors, (11904), 580 states have call successors, (580), 15 states have call predecessors, (580), 15 states have return successors, (580), 580 states have call predecessors, (580), 580 states have call successors, (580) [2024-10-11 21:00:57,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11362 states to 11362 states and 13064 transitions. [2024-10-11 21:00:57,274 INFO L78 Accepts]: Start accepts. Automaton has 11362 states and 13064 transitions. Word has length 248 [2024-10-11 21:00:57,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:57,274 INFO L471 AbstractCegarLoop]: Abstraction has 11362 states and 13064 transitions. [2024-10-11 21:00:57,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 31 states have (on average 6.451612903225806) internal successors, (200), 31 states have internal predecessors, (200), 12 states have call successors, (12), 1 states have call predecessors, (12), 3 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-11 21:00:57,275 INFO L276 IsEmpty]: Start isEmpty. Operand 11362 states and 13064 transitions. [2024-10-11 21:00:57,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2024-10-11 21:00:57,278 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:57,278 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:57,290 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2024-10-11 21:00:57,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-10-11 21:00:57,480 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-11 21:00:57,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:57,480 INFO L85 PathProgramCache]: Analyzing trace with hash 870882025, now seen corresponding path program 11 times [2024-10-11 21:00:57,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:57,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722289142] [2024-10-11 21:00:57,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:57,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:57,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 21:00:57,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1953386899] [2024-10-11 21:00:57,517 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-11 21:00:57,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:57,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:00:57,519 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:00:57,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-10-11 21:00:57,625 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2024-10-11 21:00:57,625 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 21:00:57,627 INFO L255 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-10-11 21:00:57,630 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:00:58,552 INFO L134 CoverageAnalysis]: Checked inductivity of 1514 backedges. 18 proven. 1261 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-11 21:00:58,552 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:00:58,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:58,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722289142] [2024-10-11 21:00:58,979 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 21:00:58,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1953386899] [2024-10-11 21:00:58,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1953386899] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:00:58,979 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-11 21:00:58,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2024-10-11 21:00:58,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769472092] [2024-10-11 21:00:58,979 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-11 21:00:58,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-10-11 21:00:58,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:58,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-10-11 21:00:58,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=709, Unknown=0, NotChecked=0, Total=812 [2024-10-11 21:00:58,980 INFO L87 Difference]: Start difference. First operand 11362 states and 13064 transitions. Second operand has 26 states, 25 states have (on average 9.32) internal successors, (233), 26 states have internal predecessors, (233), 13 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2024-10-11 21:01:00,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:01:00,562 INFO L93 Difference]: Finished difference Result 18092 states and 21075 transitions. [2024-10-11 21:01:00,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-10-11 21:01:00,562 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 9.32) internal successors, (233), 26 states have internal predecessors, (233), 13 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) Word has length 294 [2024-10-11 21:01:00,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:01:00,576 INFO L225 Difference]: With dead ends: 18092 [2024-10-11 21:01:00,576 INFO L226 Difference]: Without dead ends: 11450 [2024-10-11 21:01:00,583 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=112, Invalid=758, Unknown=0, NotChecked=0, Total=870 [2024-10-11 21:01:00,584 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 27 mSDsluCounter, 1545 mSDsCounter, 0 mSdLazyCounter, 3403 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 1662 SdHoareTripleChecker+Invalid, 3406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-11 21:01:00,584 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 1662 Invalid, 3406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 3403 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-11 21:01:00,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11450 states. [2024-10-11 21:01:00,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11450 to 11157. [2024-10-11 21:01:00,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11157 states, 10565 states have (on average 1.107524846190251) internal successors, (11701), 10570 states have internal predecessors, (11701), 571 states have call successors, (571), 15 states have call predecessors, (571), 15 states have return successors, (571), 571 states have call predecessors, (571), 571 states have call successors, (571) [2024-10-11 21:01:00,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11157 states to 11157 states and 12843 transitions. [2024-10-11 21:01:00,981 INFO L78 Accepts]: Start accepts. Automaton has 11157 states and 12843 transitions. Word has length 294 [2024-10-11 21:01:00,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:01:00,981 INFO L471 AbstractCegarLoop]: Abstraction has 11157 states and 12843 transitions. [2024-10-11 21:01:00,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 9.32) internal successors, (233), 26 states have internal predecessors, (233), 13 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2024-10-11 21:01:00,982 INFO L276 IsEmpty]: Start isEmpty. Operand 11157 states and 12843 transitions. [2024-10-11 21:01:00,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2024-10-11 21:01:00,986 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:01:00,986 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:01:01,010 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2024-10-11 21:01:01,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,36 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:01:01,187 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-11 21:01:01,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:01:01,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1771351713, now seen corresponding path program 12 times [2024-10-11 21:01:01,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:01:01,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709344424] [2024-10-11 21:01:01,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:01:01,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:01:01,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 21:01:01,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1124696311] [2024-10-11 21:01:01,217 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-11 21:01:01,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:01:01,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:01:01,219 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:01:01,220 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-10-11 21:01:01,378 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2024-10-11 21:01:01,378 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 21:01:01,385 INFO L255 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 51 conjuncts are in the unsatisfiable core [2024-10-11 21:01:01,389 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:01:03,285 INFO L134 CoverageAnalysis]: Checked inductivity of 1486 backedges. 60 proven. 1185 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-10-11 21:01:03,286 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:01:03,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:01:03,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709344424] [2024-10-11 21:01:03,880 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 21:01:03,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1124696311] [2024-10-11 21:01:03,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1124696311] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:01:03,880 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-11 21:01:03,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2024-10-11 21:01:03,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752289933] [2024-10-11 21:01:03,880 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-11 21:01:03,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-10-11 21:01:03,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:01:03,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-10-11 21:01:03,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=1056, Unknown=0, NotChecked=0, Total=1190 [2024-10-11 21:01:03,882 INFO L87 Difference]: Start difference. First operand 11157 states and 12843 transitions. Second operand has 31 states, 30 states have (on average 6.666666666666667) internal successors, (200), 30 states have internal predecessors, (200), 11 states have call successors, (12), 1 states have call predecessors, (12), 3 states have return successors, (13), 12 states have call predecessors, (13), 11 states have call successors, (13)