./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/egcd3-ll_unwindbound10.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/egcd3-ll_unwindbound10.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 76fd23ddcb7e8fff12decb053b84ed59e907e32bdbc4e822256bdb820e1311ef --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 20:43:13,377 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 20:43:13,460 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-11 20:43:13,465 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 20:43:13,467 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 20:43:13,487 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 20:43:13,488 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 20:43:13,489 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 20:43:13,489 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 20:43:13,490 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 20:43:13,491 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 20:43:13,491 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 20:43:13,491 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 20:43:13,492 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 20:43:13,493 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 20:43:13,493 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 20:43:13,493 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 20:43:13,494 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 20:43:13,494 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 20:43:13,497 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 20:43:13,497 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 20:43:13,497 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 20:43:13,498 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 20:43:13,498 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 20:43:13,498 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 20:43:13,498 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-11 20:43:13,498 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 20:43:13,499 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 20:43:13,499 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 20:43:13,499 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 20:43:13,499 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 20:43:13,499 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 20:43:13,500 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 20:43:13,500 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 20:43:13,500 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 20:43:13,500 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 20:43:13,500 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 20:43:13,501 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 20:43:13,501 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 20:43:13,503 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 20:43:13,504 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 20:43:13,504 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 20:43:13,504 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 20:43:13,504 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 20:43:13,505 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 76fd23ddcb7e8fff12decb053b84ed59e907e32bdbc4e822256bdb820e1311ef [2024-10-11 20:43:13,742 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 20:43:13,767 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 20:43:13,770 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 20:43:13,771 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 20:43:13,772 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 20:43:13,773 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_unwindbound10.c [2024-10-11 20:43:15,206 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 20:43:15,411 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 20:43:15,412 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_unwindbound10.c [2024-10-11 20:43:15,418 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/59efc6eb4/bf114ae3bd2f412c8dcd19466f7ea542/FLAG371a20759 [2024-10-11 20:43:15,430 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/59efc6eb4/bf114ae3bd2f412c8dcd19466f7ea542 [2024-10-11 20:43:15,433 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 20:43:15,435 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 20:43:15,437 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 20:43:15,438 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 20:43:15,444 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 20:43:15,444 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 08:43:15" (1/1) ... [2024-10-11 20:43:15,447 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23583917 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:43:15, skipping insertion in model container [2024-10-11 20:43:15,447 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 08:43:15" (1/1) ... [2024-10-11 20:43:15,467 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 20:43:15,652 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 20:43:15,662 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 20:43:15,701 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 20:43:15,729 INFO L204 MainTranslator]: Completed translation [2024-10-11 20:43:15,730 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:43:15 WrapperNode [2024-10-11 20:43:15,730 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 20:43:15,731 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 20:43:15,731 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 20:43:15,731 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 20:43:15,764 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:43:15" (1/1) ... [2024-10-11 20:43:15,770 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:43:15" (1/1) ... [2024-10-11 20:43:15,793 INFO L138 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 156 [2024-10-11 20:43:15,793 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 20:43:15,794 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 20:43:15,794 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 20:43:15,794 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 20:43:15,803 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:43:15" (1/1) ... [2024-10-11 20:43:15,803 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:43:15" (1/1) ... [2024-10-11 20:43:15,805 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:43:15" (1/1) ... [2024-10-11 20:43:15,817 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 20:43:15,818 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:43:15" (1/1) ... [2024-10-11 20:43:15,818 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:43:15" (1/1) ... [2024-10-11 20:43:15,821 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:43:15" (1/1) ... [2024-10-11 20:43:15,825 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:43:15" (1/1) ... [2024-10-11 20:43:15,826 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:43:15" (1/1) ... [2024-10-11 20:43:15,827 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:43:15" (1/1) ... [2024-10-11 20:43:15,829 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 20:43:15,830 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 20:43:15,830 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 20:43:15,831 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 20:43:15,831 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:43:15" (1/1) ... [2024-10-11 20:43:15,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 20:43:15,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:43:15,868 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 20:43:15,875 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 20:43:15,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 20:43:15,920 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-11 20:43:15,920 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-11 20:43:15,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 20:43:15,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 20:43:15,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 20:43:15,920 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-11 20:43:15,921 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-11 20:43:15,991 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 20:43:15,995 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 20:43:16,671 INFO L? ?]: Removed 138 outVars from TransFormulas that were not future-live. [2024-10-11 20:43:16,671 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 20:43:16,703 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 20:43:16,703 INFO L314 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-11 20:43:16,703 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 08:43:16 BoogieIcfgContainer [2024-10-11 20:43:16,703 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 20:43:16,706 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 20:43:16,707 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 20:43:16,710 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 20:43:16,711 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 08:43:15" (1/3) ... [2024-10-11 20:43:16,712 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11ad4265 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 08:43:16, skipping insertion in model container [2024-10-11 20:43:16,712 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:43:15" (2/3) ... [2024-10-11 20:43:16,712 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11ad4265 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 08:43:16, skipping insertion in model container [2024-10-11 20:43:16,713 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 08:43:16" (3/3) ... [2024-10-11 20:43:16,717 INFO L112 eAbstractionObserver]: Analyzing ICFG egcd3-ll_unwindbound10.c [2024-10-11 20:43:16,733 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 20:43:16,733 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 56 error locations. [2024-10-11 20:43:16,797 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 20:43:16,803 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;@53db5ce8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 20:43:16,803 INFO L334 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2024-10-11 20:43:16,807 INFO L276 IsEmpty]: Start isEmpty. Operand has 141 states, 75 states have (on average 1.8933333333333333) internal successors, (142), 131 states have internal predecessors, (142), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-10-11 20:43:16,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-11 20:43:16,812 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:43:16,813 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:43:16,813 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-11 20:43:16,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:43:16,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1950571926, now seen corresponding path program 1 times [2024-10-11 20:43:16,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:43:16,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482263225] [2024-10-11 20:43:16,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:16,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:43:16,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:16,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 20:43:16,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:16,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 20:43:16,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:16,972 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 20:43:16,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:43:16,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482263225] [2024-10-11 20:43:16,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482263225] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:43:16,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:43:16,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 20:43:16,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179282732] [2024-10-11 20:43:16,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:43:16,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 20:43:16,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:43:16,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 20:43:16,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 20:43:17,000 INFO L87 Difference]: Start difference. First operand has 141 states, 75 states have (on average 1.8933333333333333) internal successors, (142), 131 states have internal predecessors, (142), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) 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 20:43:17,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:43:17,035 INFO L93 Difference]: Finished difference Result 280 states and 316 transitions. [2024-10-11 20:43:17,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 20:43:17,037 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 20:43:17,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:43:17,044 INFO L225 Difference]: With dead ends: 280 [2024-10-11 20:43:17,044 INFO L226 Difference]: Without dead ends: 138 [2024-10-11 20:43:17,047 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 20:43:17,050 INFO L432 NwaCegarLoop]: 149 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, 149 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 20:43:17,051 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 149 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 20:43:17,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2024-10-11 20:43:17,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2024-10-11 20:43:17,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 74 states have (on average 1.8243243243243243) internal successors, (135), 129 states have internal predecessors, (135), 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 20:43:17,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 147 transitions. [2024-10-11 20:43:17,099 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 147 transitions. Word has length 14 [2024-10-11 20:43:17,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:43:17,100 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 147 transitions. [2024-10-11 20:43:17,101 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 20:43:17,102 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 147 transitions. [2024-10-11 20:43:17,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-11 20:43:17,104 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:43:17,104 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:43:17,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 20:43:17,105 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-11 20:43:17,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:43:17,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1192253431, now seen corresponding path program 1 times [2024-10-11 20:43:17,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:43:17,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876574491] [2024-10-11 20:43:17,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:17,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:43:17,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:17,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 20:43:17,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:17,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 20:43:17,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:17,268 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 20:43:17,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:43:17,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876574491] [2024-10-11 20:43:17,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876574491] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:43:17,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:43:17,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 20:43:17,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532831191] [2024-10-11 20:43:17,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:43:17,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 20:43:17,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:43:17,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 20:43:17,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 20:43:17,273 INFO L87 Difference]: Start difference. First operand 138 states and 147 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 20:43:17,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:43:17,344 INFO L93 Difference]: Finished difference Result 172 states and 181 transitions. [2024-10-11 20:43:17,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 20:43:17,345 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 20:43:17,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:43:17,347 INFO L225 Difference]: With dead ends: 172 [2024-10-11 20:43:17,347 INFO L226 Difference]: Without dead ends: 142 [2024-10-11 20:43:17,347 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 20:43:17,349 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 9 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 412 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 20:43:17,349 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 412 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 20:43:17,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-10-11 20:43:17,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2024-10-11 20:43:17,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 78 states have (on average 1.7820512820512822) internal successors, (139), 133 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 20:43:17,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 151 transitions. [2024-10-11 20:43:17,362 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 151 transitions. Word has length 14 [2024-10-11 20:43:17,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:43:17,364 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 151 transitions. [2024-10-11 20:43:17,364 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 20:43:17,365 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 151 transitions. [2024-10-11 20:43:17,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-10-11 20:43:17,366 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:43:17,366 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:43:17,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 20:43:17,367 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-11 20:43:17,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:43:17,368 INFO L85 PathProgramCache]: Analyzing trace with hash -378586418, now seen corresponding path program 1 times [2024-10-11 20:43:17,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:43:17,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694298114] [2024-10-11 20:43:17,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:17,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:43:17,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:17,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 20:43:17,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:17,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 20:43:17,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:17,535 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 20:43:17,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:43:17,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694298114] [2024-10-11 20:43:17,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694298114] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:43:17,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:43:17,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 20:43:17,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057883109] [2024-10-11 20:43:17,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:43:17,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 20:43:17,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:43:17,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 20:43:17,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 20:43:17,544 INFO L87 Difference]: Start difference. First operand 142 states and 151 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 20:43:17,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:43:17,936 INFO L93 Difference]: Finished difference Result 240 states and 263 transitions. [2024-10-11 20:43:17,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 20:43:17,936 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2024-10-11 20:43:17,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:43:17,938 INFO L225 Difference]: With dead ends: 240 [2024-10-11 20:43:17,938 INFO L226 Difference]: Without dead ends: 212 [2024-10-11 20:43:17,939 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-11 20:43:17,940 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 253 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 20:43:17,940 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 383 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 20:43:17,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2024-10-11 20:43:17,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 143. [2024-10-11 20:43:17,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 79 states have (on average 1.7721518987341771) internal successors, (140), 134 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 20:43:17,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 152 transitions. [2024-10-11 20:43:17,965 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 152 transitions. Word has length 18 [2024-10-11 20:43:17,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:43:17,965 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 152 transitions. [2024-10-11 20:43:17,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 20:43:17,965 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 152 transitions. [2024-10-11 20:43:17,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-10-11 20:43:17,967 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:43:17,968 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:43:17,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 20:43:17,968 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-11 20:43:17,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:43:17,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1148721162, now seen corresponding path program 1 times [2024-10-11 20:43:17,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:43:17,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866006987] [2024-10-11 20:43:17,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:17,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:43:17,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:18,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 20:43:18,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:18,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 20:43:18,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:18,092 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 20:43:18,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:43:18,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866006987] [2024-10-11 20:43:18,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866006987] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:43:18,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:43:18,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 20:43:18,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432908372] [2024-10-11 20:43:18,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:43:18,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 20:43:18,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:43:18,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 20:43:18,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-11 20:43:18,096 INFO L87 Difference]: Start difference. First operand 143 states and 152 transitions. Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 7 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 20:43:18,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:43:18,187 INFO L93 Difference]: Finished difference Result 177 states and 188 transitions. [2024-10-11 20:43:18,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 20:43:18,188 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 7 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 20:43:18,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:43:18,189 INFO L225 Difference]: With dead ends: 177 [2024-10-11 20:43:18,189 INFO L226 Difference]: Without dead ends: 176 [2024-10-11 20:43:18,190 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-11 20:43:18,192 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 41 mSDsluCounter, 657 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 794 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 20:43:18,194 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 794 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 20:43:18,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2024-10-11 20:43:18,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 145. [2024-10-11 20:43:18,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 81 states have (on average 1.7530864197530864) internal successors, (142), 136 states have internal predecessors, (142), 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 20:43:18,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 154 transitions. [2024-10-11 20:43:18,214 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 154 transitions. Word has length 19 [2024-10-11 20:43:18,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:43:18,215 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 154 transitions. [2024-10-11 20:43:18,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 7 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 20:43:18,215 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 154 transitions. [2024-10-11 20:43:18,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-10-11 20:43:18,216 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:43:18,216 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 20:43:18,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 20:43:18,216 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-11 20:43:18,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:43:18,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1250617717, now seen corresponding path program 1 times [2024-10-11 20:43:18,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:43:18,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135510143] [2024-10-11 20:43:18,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:18,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:43:18,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:18,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 20:43:18,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:18,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 20:43:18,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:18,328 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 20:43:18,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:43:18,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135510143] [2024-10-11 20:43:18,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135510143] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:43:18,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:43:18,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 20:43:18,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755152919] [2024-10-11 20:43:18,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:43:18,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 20:43:18,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:43:18,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 20:43:18,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-11 20:43:18,337 INFO L87 Difference]: Start difference. First operand 145 states and 154 transitions. Second operand has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 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 20:43:18,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:43:18,405 INFO L93 Difference]: Finished difference Result 277 states and 296 transitions. [2024-10-11 20:43:18,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 20:43:18,406 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 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 20:43:18,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:43:18,407 INFO L225 Difference]: With dead ends: 277 [2024-10-11 20:43:18,407 INFO L226 Difference]: Without dead ends: 147 [2024-10-11 20:43:18,408 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-10-11 20:43:18,410 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 16 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 20:43:18,414 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 540 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 20:43:18,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-10-11 20:43:18,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2024-10-11 20:43:18,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 83 states have (on average 1.7349397590361446) internal successors, (144), 138 states have internal predecessors, (144), 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 20:43:18,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 156 transitions. [2024-10-11 20:43:18,423 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 156 transitions. Word has length 20 [2024-10-11 20:43:18,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:43:18,423 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 156 transitions. [2024-10-11 20:43:18,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 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 20:43:18,423 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 156 transitions. [2024-10-11 20:43:18,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-10-11 20:43:18,424 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:43:18,424 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] [2024-10-11 20:43:18,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 20:43:18,425 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-11 20:43:18,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:43:18,425 INFO L85 PathProgramCache]: Analyzing trace with hash -813748582, now seen corresponding path program 1 times [2024-10-11 20:43:18,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:43:18,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653137631] [2024-10-11 20:43:18,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:18,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:43:18,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 20:43:18,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [667094867] [2024-10-11 20:43:18,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:18,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:43:18,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:43:18,443 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 20:43:18,445 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 20:43:18,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:18,508 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 20:43:18,513 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:43:18,544 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 20:43:18,545 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 20:43:18,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:43:18,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653137631] [2024-10-11 20:43:18,546 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 20:43:18,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [667094867] [2024-10-11 20:43:18,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [667094867] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:43:18,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:43:18,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 20:43:18,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113429068] [2024-10-11 20:43:18,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:43:18,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 20:43:18,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:43:18,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 20:43:18,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 20:43:18,548 INFO L87 Difference]: Start difference. First operand 147 states and 156 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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 20:43:18,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:43:18,785 INFO L93 Difference]: Finished difference Result 226 states and 247 transitions. [2024-10-11 20:43:18,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 20:43:18,786 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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 24 [2024-10-11 20:43:18,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:43:18,787 INFO L225 Difference]: With dead ends: 226 [2024-10-11 20:43:18,787 INFO L226 Difference]: Without dead ends: 222 [2024-10-11 20:43:18,788 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 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 20:43:18,788 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 68 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 20:43:18,789 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 246 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 20:43:18,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2024-10-11 20:43:18,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 192. [2024-10-11 20:43:18,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 124 states have (on average 1.7661290322580645) internal successors, (219), 179 states have internal predecessors, (219), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-11 20:43:18,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 239 transitions. [2024-10-11 20:43:18,807 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 239 transitions. Word has length 24 [2024-10-11 20:43:18,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:43:18,807 INFO L471 AbstractCegarLoop]: Abstraction has 192 states and 239 transitions. [2024-10-11 20:43:18,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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 20:43:18,807 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 239 transitions. [2024-10-11 20:43:18,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-10-11 20:43:18,808 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:43:18,808 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] [2024-10-11 20:43:18,824 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 20:43:19,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:43:19,013 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-11 20:43:19,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:43:19,014 INFO L85 PathProgramCache]: Analyzing trace with hash -813749252, now seen corresponding path program 1 times [2024-10-11 20:43:19,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:43:19,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094657243] [2024-10-11 20:43:19,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:19,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:43:19,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:19,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 20:43:19,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:19,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 20:43:19,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:19,127 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 20:43:19,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:43:19,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094657243] [2024-10-11 20:43:19,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094657243] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:43:19,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:43:19,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 20:43:19,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027128871] [2024-10-11 20:43:19,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:43:19,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 20:43:19,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:43:19,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 20:43:19,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-11 20:43:19,129 INFO L87 Difference]: Start difference. First operand 192 states and 239 transitions. Second operand has 9 states, 8 states have (on average 2.125) internal successors, (17), 9 states have internal predecessors, (17), 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 20:43:19,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:43:19,278 INFO L93 Difference]: Finished difference Result 243 states and 259 transitions. [2024-10-11 20:43:19,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 20:43:19,279 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.125) internal successors, (17), 9 states have internal predecessors, (17), 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 24 [2024-10-11 20:43:19,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:43:19,281 INFO L225 Difference]: With dead ends: 243 [2024-10-11 20:43:19,281 INFO L226 Difference]: Without dead ends: 241 [2024-10-11 20:43:19,282 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-10-11 20:43:19,282 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 108 mSDsluCounter, 772 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 904 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 20:43:19,283 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 904 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 20:43:19,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2024-10-11 20:43:19,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 196. [2024-10-11 20:43:19,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 127 states have (on average 1.7322834645669292) internal successors, (220), 182 states have internal predecessors, (220), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-11 20:43:19,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 240 transitions. [2024-10-11 20:43:19,294 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 240 transitions. Word has length 24 [2024-10-11 20:43:19,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:43:19,294 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 240 transitions. [2024-10-11 20:43:19,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.125) internal successors, (17), 9 states have internal predecessors, (17), 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 20:43:19,295 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 240 transitions. [2024-10-11 20:43:19,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-10-11 20:43:19,295 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:43:19,295 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] [2024-10-11 20:43:19,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 20:43:19,296 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-11 20:43:19,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:43:19,296 INFO L85 PathProgramCache]: Analyzing trace with hash 543577046, now seen corresponding path program 1 times [2024-10-11 20:43:19,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:43:19,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176571917] [2024-10-11 20:43:19,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:19,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:43:19,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:19,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 20:43:19,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:19,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 20:43:19,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:19,401 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 20:43:19,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:43:19,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176571917] [2024-10-11 20:43:19,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176571917] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:43:19,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:43:19,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 20:43:19,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777429346] [2024-10-11 20:43:19,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:43:19,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 20:43:19,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:43:19,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 20:43:19,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-11 20:43:19,403 INFO L87 Difference]: Start difference. First operand 196 states and 240 transitions. Second operand has 9 states, 8 states have (on average 2.25) internal successors, (18), 9 states have internal predecessors, (18), 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 20:43:19,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:43:19,516 INFO L93 Difference]: Finished difference Result 400 states and 490 transitions. [2024-10-11 20:43:19,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-11 20:43:19,516 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 9 states have internal predecessors, (18), 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 25 [2024-10-11 20:43:19,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:43:19,519 INFO L225 Difference]: With dead ends: 400 [2024-10-11 20:43:19,519 INFO L226 Difference]: Without dead ends: 221 [2024-10-11 20:43:19,520 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2024-10-11 20:43:19,523 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 41 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 699 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 20:43:19,524 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 699 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 20:43:19,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2024-10-11 20:43:19,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 201. [2024-10-11 20:43:19,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 132 states have (on average 1.7121212121212122) internal successors, (226), 187 states have internal predecessors, (226), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-11 20:43:19,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 246 transitions. [2024-10-11 20:43:19,535 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 246 transitions. Word has length 25 [2024-10-11 20:43:19,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:43:19,535 INFO L471 AbstractCegarLoop]: Abstraction has 201 states and 246 transitions. [2024-10-11 20:43:19,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 9 states have internal predecessors, (18), 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 20:43:19,536 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 246 transitions. [2024-10-11 20:43:19,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-10-11 20:43:19,536 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:43:19,536 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] [2024-10-11 20:43:19,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 20:43:19,537 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-11 20:43:19,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:43:19,537 INFO L85 PathProgramCache]: Analyzing trace with hash -328334212, now seen corresponding path program 1 times [2024-10-11 20:43:19,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:43:19,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947780393] [2024-10-11 20:43:19,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:19,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:43:19,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:19,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 20:43:19,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:19,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 20:43:19,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:19,724 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 20:43:19,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:43:19,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947780393] [2024-10-11 20:43:19,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947780393] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:43:19,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:43:19,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 20:43:19,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442125217] [2024-10-11 20:43:19,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:43:19,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 20:43:19,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:43:19,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 20:43:19,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 20:43:19,726 INFO L87 Difference]: Start difference. First operand 201 states and 246 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 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 20:43:19,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:43:19,931 INFO L93 Difference]: Finished difference Result 228 states and 250 transitions. [2024-10-11 20:43:19,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 20:43:19,933 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 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 26 [2024-10-11 20:43:19,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:43:19,934 INFO L225 Difference]: With dead ends: 228 [2024-10-11 20:43:19,934 INFO L226 Difference]: Without dead ends: 227 [2024-10-11 20:43:19,934 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 20:43:19,935 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 63 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 20:43:19,935 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 405 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 20:43:19,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2024-10-11 20:43:19,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 202. [2024-10-11 20:43:19,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 133 states have (on average 1.7067669172932332) internal successors, (227), 188 states have internal predecessors, (227), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-11 20:43:19,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 247 transitions. [2024-10-11 20:43:19,945 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 247 transitions. Word has length 26 [2024-10-11 20:43:19,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:43:19,946 INFO L471 AbstractCegarLoop]: Abstraction has 202 states and 247 transitions. [2024-10-11 20:43:19,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 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 20:43:19,946 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 247 transitions. [2024-10-11 20:43:19,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-10-11 20:43:19,947 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:43:19,947 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] [2024-10-11 20:43:19,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 20:43:19,948 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-11 20:43:19,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:43:19,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1588425813, now seen corresponding path program 1 times [2024-10-11 20:43:19,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:43:19,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792090946] [2024-10-11 20:43:19,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:19,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:43:19,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 20:43:19,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1491349247] [2024-10-11 20:43:19,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:19,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:43:19,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:43:19,962 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 20:43:19,963 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 20:43:20,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:20,009 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 20:43:20,011 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:43:20,137 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 20:43:20,138 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 20:43:20,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:43:20,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792090946] [2024-10-11 20:43:20,138 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 20:43:20,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1491349247] [2024-10-11 20:43:20,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1491349247] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:43:20,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:43:20,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 20:43:20,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897924881] [2024-10-11 20:43:20,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:43:20,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 20:43:20,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:43:20,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 20:43:20,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 20:43:20,140 INFO L87 Difference]: Start difference. First operand 202 states and 247 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 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 20:43:20,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:43:20,512 INFO L93 Difference]: Finished difference Result 226 states and 249 transitions. [2024-10-11 20:43:20,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 20:43:20,512 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 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 27 [2024-10-11 20:43:20,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:43:20,514 INFO L225 Difference]: With dead ends: 226 [2024-10-11 20:43:20,514 INFO L226 Difference]: Without dead ends: 225 [2024-10-11 20:43:20,514 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 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 20:43:20,514 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 62 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 20:43:20,515 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 349 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 20:43:20,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2024-10-11 20:43:20,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 203. [2024-10-11 20:43:20,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 134 states have (on average 1.7014925373134329) internal successors, (228), 189 states have internal predecessors, (228), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-11 20:43:20,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 248 transitions. [2024-10-11 20:43:20,528 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 248 transitions. Word has length 27 [2024-10-11 20:43:20,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:43:20,529 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 248 transitions. [2024-10-11 20:43:20,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 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 20:43:20,530 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 248 transitions. [2024-10-11 20:43:20,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-10-11 20:43:20,531 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:43:20,532 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] [2024-10-11 20:43:20,548 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 20:43:20,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:43:20,732 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-11 20:43:20,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:43:20,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1608466120, now seen corresponding path program 1 times [2024-10-11 20:43:20,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:43:20,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149639874] [2024-10-11 20:43:20,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:20,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:43:20,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 20:43:20,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1342653838] [2024-10-11 20:43:20,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:20,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:43:20,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:43:20,745 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 20:43:20,746 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 20:43:20,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:20,793 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 20:43:20,794 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:43:20,816 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 20:43:20,816 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 20:43:20,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:43:20,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149639874] [2024-10-11 20:43:20,817 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 20:43:20,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1342653838] [2024-10-11 20:43:20,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1342653838] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:43:20,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:43:20,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 20:43:20,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219664872] [2024-10-11 20:43:20,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:43:20,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 20:43:20,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:43:20,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 20:43:20,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 20:43:20,818 INFO L87 Difference]: Start difference. First operand 203 states and 248 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 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 20:43:21,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:43:21,046 INFO L93 Difference]: Finished difference Result 229 states and 248 transitions. [2024-10-11 20:43:21,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 20:43:21,046 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 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 27 [2024-10-11 20:43:21,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:43:21,047 INFO L225 Difference]: With dead ends: 229 [2024-10-11 20:43:21,048 INFO L226 Difference]: Without dead ends: 227 [2024-10-11 20:43:21,048 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 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 20:43:21,048 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 61 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 20:43:21,048 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 276 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 20:43:21,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2024-10-11 20:43:21,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 203. [2024-10-11 20:43:21,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 134 states have (on average 1.6865671641791045) internal successors, (226), 189 states have internal predecessors, (226), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-11 20:43:21,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 246 transitions. [2024-10-11 20:43:21,056 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 246 transitions. Word has length 27 [2024-10-11 20:43:21,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:43:21,057 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 246 transitions. [2024-10-11 20:43:21,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 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 20:43:21,057 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 246 transitions. [2024-10-11 20:43:21,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-10-11 20:43:21,057 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:43:21,057 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] [2024-10-11 20:43:21,073 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-11 20:43:21,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:43:21,262 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-11 20:43:21,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:43:21,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1996559778, now seen corresponding path program 1 times [2024-10-11 20:43:21,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:43:21,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268003405] [2024-10-11 20:43:21,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:21,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:43:21,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 20:43:21,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [216742028] [2024-10-11 20:43:21,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:21,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:43:21,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:43:21,285 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 20:43:21,288 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 20:43:21,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:21,335 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 20:43:21,337 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:43:21,362 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 20:43:21,363 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 20:43:21,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:43:21,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268003405] [2024-10-11 20:43:21,363 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 20:43:21,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [216742028] [2024-10-11 20:43:21,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [216742028] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:43:21,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:43:21,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 20:43:21,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464578878] [2024-10-11 20:43:21,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:43:21,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 20:43:21,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:43:21,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 20:43:21,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 20:43:21,376 INFO L87 Difference]: Start difference. First operand 203 states and 246 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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 20:43:21,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:43:21,530 INFO L93 Difference]: Finished difference Result 328 states and 418 transitions. [2024-10-11 20:43:21,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 20:43:21,530 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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 28 [2024-10-11 20:43:21,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:43:21,533 INFO L225 Difference]: With dead ends: 328 [2024-10-11 20:43:21,533 INFO L226 Difference]: Without dead ends: 322 [2024-10-11 20:43:21,533 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 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 20:43:21,534 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 65 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 20:43:21,534 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 241 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 20:43:21,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2024-10-11 20:43:21,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 286. [2024-10-11 20:43:21,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 209 states have (on average 1.69377990430622) internal successors, (354), 264 states have internal predecessors, (354), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-11 20:43:21,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 390 transitions. [2024-10-11 20:43:21,556 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 390 transitions. Word has length 28 [2024-10-11 20:43:21,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:43:21,556 INFO L471 AbstractCegarLoop]: Abstraction has 286 states and 390 transitions. [2024-10-11 20:43:21,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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 20:43:21,557 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 390 transitions. [2024-10-11 20:43:21,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-10-11 20:43:21,557 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:43:21,557 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] [2024-10-11 20:43:21,574 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 20:43:21,758 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,SelfDestructingSolverStorable11 [2024-10-11 20:43:21,758 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-11 20:43:21,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:43:21,759 INFO L85 PathProgramCache]: Analyzing trace with hash 452288154, now seen corresponding path program 1 times [2024-10-11 20:43:21,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:43:21,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319506030] [2024-10-11 20:43:21,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:21,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:43:21,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 20:43:21,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2083839496] [2024-10-11 20:43:21,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:21,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:43:21,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:43:21,772 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 20:43:21,773 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 20:43:21,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:21,819 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 20:43:21,820 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:43:21,915 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 20:43:21,915 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 20:43:21,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:43:21,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319506030] [2024-10-11 20:43:21,915 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 20:43:21,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2083839496] [2024-10-11 20:43:21,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2083839496] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:43:21,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:43:21,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 20:43:21,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632943033] [2024-10-11 20:43:21,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:43:21,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 20:43:21,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:43:21,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 20:43:21,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 20:43:21,917 INFO L87 Difference]: Start difference. First operand 286 states and 390 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 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 20:43:22,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:43:22,337 INFO L93 Difference]: Finished difference Result 307 states and 390 transitions. [2024-10-11 20:43:22,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 20:43:22,338 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 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 29 [2024-10-11 20:43:22,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:43:22,340 INFO L225 Difference]: With dead ends: 307 [2024-10-11 20:43:22,340 INFO L226 Difference]: Without dead ends: 306 [2024-10-11 20:43:22,340 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 26 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 20:43:22,341 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 198 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 20:43:22,341 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 226 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 20:43:22,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2024-10-11 20:43:22,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 286. [2024-10-11 20:43:22,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 209 states have (on average 1.6842105263157894) internal successors, (352), 264 states have internal predecessors, (352), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-11 20:43:22,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 388 transitions. [2024-10-11 20:43:22,354 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 388 transitions. Word has length 29 [2024-10-11 20:43:22,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:43:22,355 INFO L471 AbstractCegarLoop]: Abstraction has 286 states and 388 transitions. [2024-10-11 20:43:22,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 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 20:43:22,355 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 388 transitions. [2024-10-11 20:43:22,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-10-11 20:43:22,356 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:43:22,356 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] [2024-10-11 20:43:22,372 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-11 20:43:22,560 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,SelfDestructingSolverStorable12 [2024-10-11 20:43:22,561 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-11 20:43:22,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:43:22,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1156440128, now seen corresponding path program 1 times [2024-10-11 20:43:22,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:43:22,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340921074] [2024-10-11 20:43:22,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:22,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:43:22,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:22,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 20:43:22,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:22,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 20:43:22,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:22,661 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 20:43:22,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:43:22,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340921074] [2024-10-11 20:43:22,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340921074] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:43:22,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:43:22,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 20:43:22,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622240518] [2024-10-11 20:43:22,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:43:22,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 20:43:22,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:43:22,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 20:43:22,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 20:43:22,663 INFO L87 Difference]: Start difference. First operand 286 states and 388 transitions. Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 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 20:43:23,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:43:23,012 INFO L93 Difference]: Finished difference Result 318 states and 398 transitions. [2024-10-11 20:43:23,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 20:43:23,013 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 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 30 [2024-10-11 20:43:23,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:43:23,015 INFO L225 Difference]: With dead ends: 318 [2024-10-11 20:43:23,015 INFO L226 Difference]: Without dead ends: 317 [2024-10-11 20:43:23,015 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 20:43:23,016 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 64 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 20:43:23,016 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 421 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 20:43:23,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2024-10-11 20:43:23,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 291. [2024-10-11 20:43:23,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 214 states have (on average 1.6775700934579438) internal successors, (359), 269 states have internal predecessors, (359), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-11 20:43:23,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 395 transitions. [2024-10-11 20:43:23,029 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 395 transitions. Word has length 30 [2024-10-11 20:43:23,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:43:23,030 INFO L471 AbstractCegarLoop]: Abstraction has 291 states and 395 transitions. [2024-10-11 20:43:23,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 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 20:43:23,030 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 395 transitions. [2024-10-11 20:43:23,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-10-11 20:43:23,032 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:43:23,033 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] [2024-10-11 20:43:23,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-11 20:43:23,033 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-11 20:43:23,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:43:23,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1136030981, now seen corresponding path program 1 times [2024-10-11 20:43:23,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:43:23,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796099364] [2024-10-11 20:43:23,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:23,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:43:23,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 20:43:23,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1009716004] [2024-10-11 20:43:23,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:23,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:43:23,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:43:23,047 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 20:43:23,048 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 20:43:23,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:23,087 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 20:43:23,089 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:43:23,159 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 20:43:23,159 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 20:43:23,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:43:23,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796099364] [2024-10-11 20:43:23,159 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 20:43:23,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1009716004] [2024-10-11 20:43:23,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1009716004] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:43:23,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:43:23,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 20:43:23,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728211672] [2024-10-11 20:43:23,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:43:23,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 20:43:23,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:43:23,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 20:43:23,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 20:43:23,161 INFO L87 Difference]: Start difference. First operand 291 states and 395 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 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 20:43:23,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:43:23,399 INFO L93 Difference]: Finished difference Result 312 states and 395 transitions. [2024-10-11 20:43:23,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 20:43:23,399 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 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 30 [2024-10-11 20:43:23,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:43:23,401 INFO L225 Difference]: With dead ends: 312 [2024-10-11 20:43:23,401 INFO L226 Difference]: Without dead ends: 311 [2024-10-11 20:43:23,401 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 27 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 20:43:23,402 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 160 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 20:43:23,402 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 238 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 20:43:23,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2024-10-11 20:43:23,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 291. [2024-10-11 20:43:23,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 214 states have (on average 1.6682242990654206) internal successors, (357), 269 states have internal predecessors, (357), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-11 20:43:23,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 393 transitions. [2024-10-11 20:43:23,415 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 393 transitions. Word has length 30 [2024-10-11 20:43:23,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:43:23,416 INFO L471 AbstractCegarLoop]: Abstraction has 291 states and 393 transitions. [2024-10-11 20:43:23,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 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 20:43:23,416 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 393 transitions. [2024-10-11 20:43:23,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-10-11 20:43:23,417 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:43:23,417 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] [2024-10-11 20:43:23,433 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 20:43:23,621 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,SelfDestructingSolverStorable14 [2024-10-11 20:43:23,622 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-11 20:43:23,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:43:23,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1489905775, now seen corresponding path program 1 times [2024-10-11 20:43:23,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:43:23,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941443242] [2024-10-11 20:43:23,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:23,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:43:23,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 20:43:23,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [921656238] [2024-10-11 20:43:23,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:23,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:43:23,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:43:23,633 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 20:43:23,635 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 20:43:23,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:23,680 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 20:43:23,681 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:43:23,774 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 20:43:23,774 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 20:43:23,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:43:23,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941443242] [2024-10-11 20:43:23,775 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 20:43:23,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [921656238] [2024-10-11 20:43:23,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [921656238] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:43:23,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:43:23,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 20:43:23,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219680368] [2024-10-11 20:43:23,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:43:23,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 20:43:23,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:43:23,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 20:43:23,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 20:43:23,778 INFO L87 Difference]: Start difference. First operand 291 states and 393 transitions. Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 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 20:43:24,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:43:24,160 INFO L93 Difference]: Finished difference Result 335 states and 404 transitions. [2024-10-11 20:43:24,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 20:43:24,160 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 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 31 [2024-10-11 20:43:24,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:43:24,162 INFO L225 Difference]: With dead ends: 335 [2024-10-11 20:43:24,162 INFO L226 Difference]: Without dead ends: 334 [2024-10-11 20:43:24,162 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 20:43:24,163 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 123 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 20:43:24,163 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 517 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 20:43:24,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2024-10-11 20:43:24,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 293. [2024-10-11 20:43:24,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 216 states have (on average 1.662037037037037) internal successors, (359), 271 states have internal predecessors, (359), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-11 20:43:24,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 395 transitions. [2024-10-11 20:43:24,175 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 395 transitions. Word has length 31 [2024-10-11 20:43:24,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:43:24,176 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 395 transitions. [2024-10-11 20:43:24,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 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 20:43:24,176 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 395 transitions. [2024-10-11 20:43:24,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-10-11 20:43:24,177 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:43:24,178 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] [2024-10-11 20:43:24,194 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 20:43:24,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,8 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:43:24,378 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-11 20:43:24,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:43:24,379 INFO L85 PathProgramCache]: Analyzing trace with hash 857222140, now seen corresponding path program 1 times [2024-10-11 20:43:24,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:43:24,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068104629] [2024-10-11 20:43:24,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:24,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:43:24,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 20:43:24,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [499344457] [2024-10-11 20:43:24,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:24,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:43:24,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:43:24,392 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 20:43:24,393 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 20:43:24,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:24,433 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 20:43:24,434 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:43:24,473 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 20:43:24,473 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 20:43:24,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:43:24,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068104629] [2024-10-11 20:43:24,473 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 20:43:24,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [499344457] [2024-10-11 20:43:24,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [499344457] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:43:24,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:43:24,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 20:43:24,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600211816] [2024-10-11 20:43:24,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:43:24,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 20:43:24,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:43:24,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 20:43:24,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 20:43:24,475 INFO L87 Difference]: Start difference. First operand 293 states and 395 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 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 20:43:24,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:43:24,793 INFO L93 Difference]: Finished difference Result 319 states and 398 transitions. [2024-10-11 20:43:24,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 20:43:24,794 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 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 31 [2024-10-11 20:43:24,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:43:24,795 INFO L225 Difference]: With dead ends: 319 [2024-10-11 20:43:24,795 INFO L226 Difference]: Without dead ends: 318 [2024-10-11 20:43:24,796 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 28 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 20:43:24,796 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 115 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 20:43:24,796 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 300 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 20:43:24,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2024-10-11 20:43:24,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 293. [2024-10-11 20:43:24,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 216 states have (on average 1.6527777777777777) internal successors, (357), 271 states have internal predecessors, (357), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-11 20:43:24,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 393 transitions. [2024-10-11 20:43:24,807 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 393 transitions. Word has length 31 [2024-10-11 20:43:24,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:43:24,807 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 393 transitions. [2024-10-11 20:43:24,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 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 20:43:24,808 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 393 transitions. [2024-10-11 20:43:24,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-10-11 20:43:24,808 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:43:24,808 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] [2024-10-11 20:43:24,824 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 20:43:25,008 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,SelfDestructingSolverStorable16 [2024-10-11 20:43:25,009 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-11 20:43:25,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:43:25,010 INFO L85 PathProgramCache]: Analyzing trace with hash 804082663, now seen corresponding path program 1 times [2024-10-11 20:43:25,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:43:25,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830217825] [2024-10-11 20:43:25,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:25,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:43:25,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 20:43:25,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1087233954] [2024-10-11 20:43:25,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:25,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:43:25,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:43:25,024 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 20:43:25,025 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 20:43:25,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:25,066 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 20:43:25,068 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:43:25,135 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 20:43:25,135 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 20:43:25,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:43:25,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830217825] [2024-10-11 20:43:25,136 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 20:43:25,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1087233954] [2024-10-11 20:43:25,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1087233954] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:43:25,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:43:25,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 20:43:25,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469115923] [2024-10-11 20:43:25,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:43:25,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 20:43:25,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:43:25,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 20:43:25,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 20:43:25,137 INFO L87 Difference]: Start difference. First operand 293 states and 393 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 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 20:43:25,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:43:25,345 INFO L93 Difference]: Finished difference Result 320 states and 397 transitions. [2024-10-11 20:43:25,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 20:43:25,346 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 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 32 [2024-10-11 20:43:25,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:43:25,347 INFO L225 Difference]: With dead ends: 320 [2024-10-11 20:43:25,348 INFO L226 Difference]: Without dead ends: 319 [2024-10-11 20:43:25,348 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 29 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 20:43:25,348 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 114 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 20:43:25,349 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 302 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 20:43:25,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2024-10-11 20:43:25,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 293. [2024-10-11 20:43:25,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 216 states have (on average 1.6435185185185186) internal successors, (355), 271 states have internal predecessors, (355), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-11 20:43:25,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 391 transitions. [2024-10-11 20:43:25,359 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 391 transitions. Word has length 32 [2024-10-11 20:43:25,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:43:25,360 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 391 transitions. [2024-10-11 20:43:25,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 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 20:43:25,360 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 391 transitions. [2024-10-11 20:43:25,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-10-11 20:43:25,360 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:43:25,360 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] [2024-10-11 20:43:25,377 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 20:43:25,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-10-11 20:43:25,565 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-11 20:43:25,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:43:25,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1575341489, now seen corresponding path program 1 times [2024-10-11 20:43:25,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:43:25,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900560307] [2024-10-11 20:43:25,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:25,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:43:25,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:25,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 20:43:25,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:25,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 20:43:25,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:25,644 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 20:43:25,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:43:25,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900560307] [2024-10-11 20:43:25,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900560307] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:43:25,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [604620563] [2024-10-11 20:43:25,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:25,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:43:25,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:43:25,647 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 20:43:25,652 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 20:43:25,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:25,690 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 20:43:25,691 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:43:25,771 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 20:43:25,771 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 20:43:25,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [604620563] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:43:25,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 20:43:25,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 13 [2024-10-11 20:43:25,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470697214] [2024-10-11 20:43:25,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:43:25,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 20:43:25,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:43:25,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 20:43:25,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-10-11 20:43:25,775 INFO L87 Difference]: Start difference. First operand 293 states and 391 transitions. Second operand has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 7 states have internal predecessors, (26), 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 20:43:25,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:43:25,872 INFO L93 Difference]: Finished difference Result 345 states and 441 transitions. [2024-10-11 20:43:25,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 20:43:25,872 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 7 states have internal predecessors, (26), 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 33 [2024-10-11 20:43:25,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:43:25,874 INFO L225 Difference]: With dead ends: 345 [2024-10-11 20:43:25,874 INFO L226 Difference]: Without dead ends: 343 [2024-10-11 20:43:25,874 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2024-10-11 20:43:25,874 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 93 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 20:43:25,875 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 626 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 20:43:25,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2024-10-11 20:43:25,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 297. [2024-10-11 20:43:25,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 220 states have (on average 1.6363636363636365) internal successors, (360), 275 states have internal predecessors, (360), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-11 20:43:25,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 396 transitions. [2024-10-11 20:43:25,887 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 396 transitions. Word has length 33 [2024-10-11 20:43:25,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:43:25,887 INFO L471 AbstractCegarLoop]: Abstraction has 297 states and 396 transitions. [2024-10-11 20:43:25,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 7 states have internal predecessors, (26), 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 20:43:25,887 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 396 transitions. [2024-10-11 20:43:25,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-10-11 20:43:25,888 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:43:25,888 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] [2024-10-11 20:43:25,903 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 20:43:26,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:43:26,088 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-11 20:43:26,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:43:26,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1590945947, now seen corresponding path program 1 times [2024-10-11 20:43:26,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:43:26,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806609520] [2024-10-11 20:43:26,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:26,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:43:26,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:26,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 20:43:26,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:26,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 20:43:26,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:26,222 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 20:43:26,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:43:26,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806609520] [2024-10-11 20:43:26,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806609520] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:43:26,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1911891349] [2024-10-11 20:43:26,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:26,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:43:26,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:43:26,225 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 20:43:26,229 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 20:43:26,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:26,273 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 20:43:26,274 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:43:26,353 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 20:43:26,354 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 20:43:26,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1911891349] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:43:26,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 20:43:26,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 13 [2024-10-11 20:43:26,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69138516] [2024-10-11 20:43:26,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:43:26,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 20:43:26,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:43:26,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 20:43:26,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-10-11 20:43:26,355 INFO L87 Difference]: Start difference. First operand 297 states and 396 transitions. Second operand has 7 states, 6 states have (on average 4.5) internal successors, (27), 7 states have internal predecessors, (27), 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 20:43:26,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:43:26,473 INFO L93 Difference]: Finished difference Result 338 states and 432 transitions. [2024-10-11 20:43:26,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 20:43:26,473 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.5) internal successors, (27), 7 states have internal predecessors, (27), 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 34 [2024-10-11 20:43:26,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:43:26,475 INFO L225 Difference]: With dead ends: 338 [2024-10-11 20:43:26,475 INFO L226 Difference]: Without dead ends: 336 [2024-10-11 20:43:26,475 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2024-10-11 20:43:26,476 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 94 mSDsluCounter, 616 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 20:43:26,476 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 776 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 20:43:26,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2024-10-11 20:43:26,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 298. [2024-10-11 20:43:26,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 221 states have (on average 1.6289592760180995) internal successors, (360), 276 states have internal predecessors, (360), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-11 20:43:26,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 396 transitions. [2024-10-11 20:43:26,490 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 396 transitions. Word has length 34 [2024-10-11 20:43:26,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:43:26,490 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 396 transitions. [2024-10-11 20:43:26,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.5) internal successors, (27), 7 states have internal predecessors, (27), 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 20:43:26,490 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 396 transitions. [2024-10-11 20:43:26,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-10-11 20:43:26,490 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:43:26,490 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] [2024-10-11 20:43:26,506 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 20:43:26,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:43:26,691 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-11 20:43:26,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:43:26,691 INFO L85 PathProgramCache]: Analyzing trace with hash -109300672, now seen corresponding path program 1 times [2024-10-11 20:43:26,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:43:26,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181501650] [2024-10-11 20:43:26,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:26,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:43:26,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:26,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 20:43:26,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:26,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 20:43:26,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:26,784 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 20:43:26,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:43:26,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181501650] [2024-10-11 20:43:26,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181501650] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:43:26,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1435358822] [2024-10-11 20:43:26,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:26,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:43:26,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:43:26,787 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 20:43:26,788 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 20:43:26,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:26,830 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-11 20:43:26,832 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:43:26,884 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 20:43:26,884 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:43:26,982 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 20:43:26,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1435358822] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:43:26,982 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:43:26,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 8] total 17 [2024-10-11 20:43:26,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095682007] [2024-10-11 20:43:26,983 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:43:26,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-11 20:43:26,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:43:26,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-11 20:43:26,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-11 20:43:26,984 INFO L87 Difference]: Start difference. First operand 298 states and 396 transitions. Second operand has 17 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-11 20:43:27,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:43:27,136 INFO L93 Difference]: Finished difference Result 538 states and 684 transitions. [2024-10-11 20:43:27,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-11 20:43:27,137 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 36 [2024-10-11 20:43:27,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:43:27,140 INFO L225 Difference]: With dead ends: 538 [2024-10-11 20:43:27,140 INFO L226 Difference]: Without dead ends: 358 [2024-10-11 20:43:27,141 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=151, Invalid=449, Unknown=0, NotChecked=0, Total=600 [2024-10-11 20:43:27,142 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 74 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 888 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 20:43:27,142 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 888 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 20:43:27,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2024-10-11 20:43:27,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 321. [2024-10-11 20:43:27,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 244 states have (on average 1.5942622950819672) internal successors, (389), 299 states have internal predecessors, (389), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-11 20:43:27,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 425 transitions. [2024-10-11 20:43:27,160 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 425 transitions. Word has length 36 [2024-10-11 20:43:27,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:43:27,160 INFO L471 AbstractCegarLoop]: Abstraction has 321 states and 425 transitions. [2024-10-11 20:43:27,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-11 20:43:27,161 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 425 transitions. [2024-10-11 20:43:27,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-10-11 20:43:27,161 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:43:27,161 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] [2024-10-11 20:43:27,179 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-10-11 20:43:27,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,13 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:43:27,366 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-11 20:43:27,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:43:27,366 INFO L85 PathProgramCache]: Analyzing trace with hash 906644598, now seen corresponding path program 1 times [2024-10-11 20:43:27,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:43:27,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332115983] [2024-10-11 20:43:27,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:27,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:43:27,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:27,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 20:43:27,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:27,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 20:43:27,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:27,461 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 20:43:27,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:43:27,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332115983] [2024-10-11 20:43:27,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332115983] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:43:27,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1462899487] [2024-10-11 20:43:27,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:27,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:43:27,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:43:27,464 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 20:43:27,465 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 20:43:27,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:27,524 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-11 20:43:27,525 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:43:27,584 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 20:43:27,585 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:43:27,659 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 20:43:27,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1462899487] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:43:27,659 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:43:27,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 9 [2024-10-11 20:43:27,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979967776] [2024-10-11 20:43:27,660 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:43:27,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 20:43:27,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:43:27,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 20:43:27,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-11 20:43:27,661 INFO L87 Difference]: Start difference. First operand 321 states and 425 transitions. Second operand has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-11 20:43:28,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:43:28,388 INFO L93 Difference]: Finished difference Result 863 states and 1081 transitions. [2024-10-11 20:43:28,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-11 20:43:28,390 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 37 [2024-10-11 20:43:28,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:43:28,393 INFO L225 Difference]: With dead ends: 863 [2024-10-11 20:43:28,394 INFO L226 Difference]: Without dead ends: 835 [2024-10-11 20:43:28,394 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 72 SyntacticMatches, 4 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=291, Unknown=0, NotChecked=0, Total=380 [2024-10-11 20:43:28,395 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 958 mSDsluCounter, 727 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 962 SdHoareTripleChecker+Valid, 866 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-11 20:43:28,395 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [962 Valid, 866 Invalid, 691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-11 20:43:28,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2024-10-11 20:43:28,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 465. [2024-10-11 20:43:28,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 380 states have (on average 1.6263157894736842) internal successors, (618), 435 states have internal predecessors, (618), 26 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-11 20:43:28,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 670 transitions. [2024-10-11 20:43:28,424 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 670 transitions. Word has length 37 [2024-10-11 20:43:28,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:43:28,424 INFO L471 AbstractCegarLoop]: Abstraction has 465 states and 670 transitions. [2024-10-11 20:43:28,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-11 20:43:28,424 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 670 transitions. [2024-10-11 20:43:28,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-10-11 20:43:28,425 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:43:28,425 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:43:28,441 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 20:43:28,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,14 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:43:28,626 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-11 20:43:28,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:43:28,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1174074924, now seen corresponding path program 1 times [2024-10-11 20:43:28,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:43:28,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346204757] [2024-10-11 20:43:28,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:28,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:43:28,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 20:43:28,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1660441404] [2024-10-11 20:43:28,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:28,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:43:28,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:43:28,641 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 20:43:28,642 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 20:43:28,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:28,684 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 20:43:28,685 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:43:28,772 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 20:43:28,773 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 20:43:28,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:43:28,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346204757] [2024-10-11 20:43:28,773 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 20:43:28,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1660441404] [2024-10-11 20:43:28,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1660441404] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:43:28,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:43:28,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 20:43:28,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739920897] [2024-10-11 20:43:28,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:43:28,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 20:43:28,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:43:28,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 20:43:28,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 20:43:28,774 INFO L87 Difference]: Start difference. First operand 465 states and 670 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 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 20:43:29,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:43:29,189 INFO L93 Difference]: Finished difference Result 485 states and 672 transitions. [2024-10-11 20:43:29,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 20:43:29,190 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 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 20:43:29,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:43:29,192 INFO L225 Difference]: With dead ends: 485 [2024-10-11 20:43:29,192 INFO L226 Difference]: Without dead ends: 484 [2024-10-11 20:43:29,192 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 37 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 20:43:29,193 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 163 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 20:43:29,193 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 234 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 20:43:29,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2024-10-11 20:43:29,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 465. [2024-10-11 20:43:29,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 380 states have (on average 1.6210526315789473) internal successors, (616), 435 states have internal predecessors, (616), 26 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-11 20:43:29,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 668 transitions. [2024-10-11 20:43:29,217 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 668 transitions. Word has length 40 [2024-10-11 20:43:29,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:43:29,218 INFO L471 AbstractCegarLoop]: Abstraction has 465 states and 668 transitions. [2024-10-11 20:43:29,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 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 20:43:29,218 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 668 transitions. [2024-10-11 20:43:29,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-10-11 20:43:29,218 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:43:29,218 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:43:29,238 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-10-11 20:43:29,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-10-11 20:43:29,419 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-11 20:43:29,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:43:29,420 INFO L85 PathProgramCache]: Analyzing trace with hash -2036584168, now seen corresponding path program 1 times [2024-10-11 20:43:29,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:43:29,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829149916] [2024-10-11 20:43:29,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:29,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:43:29,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 20:43:29,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1015190986] [2024-10-11 20:43:29,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:29,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:43:29,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:43:29,429 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 20:43:29,432 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 20:43:29,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:29,480 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 20:43:29,481 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:43:29,616 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 20:43:29,616 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 20:43:29,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:43:29,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829149916] [2024-10-11 20:43:29,617 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 20:43:29,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1015190986] [2024-10-11 20:43:29,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1015190986] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:43:29,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:43:29,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 20:43:29,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233839979] [2024-10-11 20:43:29,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:43:29,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 20:43:29,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:43:29,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 20:43:29,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 20:43:29,618 INFO L87 Difference]: Start difference. First operand 465 states and 668 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 20:43:30,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:43:30,261 INFO L93 Difference]: Finished difference Result 494 states and 674 transitions. [2024-10-11 20:43:30,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 20:43:30,261 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 20:43:30,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:43:30,263 INFO L225 Difference]: With dead ends: 494 [2024-10-11 20:43:30,264 INFO L226 Difference]: Without dead ends: 493 [2024-10-11 20:43:30,264 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-11 20:43:30,264 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 394 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-11 20:43:30,264 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 363 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-11 20:43:30,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2024-10-11 20:43:30,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 465. [2024-10-11 20:43:30,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 380 states have (on average 1.6157894736842104) internal successors, (614), 435 states have internal predecessors, (614), 26 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-11 20:43:30,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 666 transitions. [2024-10-11 20:43:30,285 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 666 transitions. Word has length 41 [2024-10-11 20:43:30,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:43:30,285 INFO L471 AbstractCegarLoop]: Abstraction has 465 states and 666 transitions. [2024-10-11 20:43:30,286 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 20:43:30,286 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 666 transitions. [2024-10-11 20:43:30,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-10-11 20:43:30,286 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:43:30,286 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:43:30,303 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-10-11 20:43:30,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-10-11 20:43:30,487 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-11 20:43:30,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:43:30,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1290400342, now seen corresponding path program 1 times [2024-10-11 20:43:30,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:43:30,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624246872] [2024-10-11 20:43:30,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:30,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:43:30,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 20:43:30,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [352232276] [2024-10-11 20:43:30,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:30,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:43:30,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:43:30,502 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 20:43:30,504 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 20:43:30,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:30,547 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 20:43:30,548 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:43:30,588 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 20:43:30,588 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 20:43:30,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:43:30,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624246872] [2024-10-11 20:43:30,589 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 20:43:30,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [352232276] [2024-10-11 20:43:30,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [352232276] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:43:30,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:43:30,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 20:43:30,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665918653] [2024-10-11 20:43:30,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:43:30,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 20:43:30,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:43:30,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 20:43:30,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 20:43:30,591 INFO L87 Difference]: Start difference. First operand 465 states and 666 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 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 20:43:30,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:43:30,822 INFO L93 Difference]: Finished difference Result 494 states and 677 transitions. [2024-10-11 20:43:30,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 20:43:30,823 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 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 20:43:30,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:43:30,825 INFO L225 Difference]: With dead ends: 494 [2024-10-11 20:43:30,825 INFO L226 Difference]: Without dead ends: 493 [2024-10-11 20:43:30,825 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 39 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 20:43:30,826 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 107 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 20:43:30,830 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 294 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 20:43:30,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2024-10-11 20:43:30,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 465. [2024-10-11 20:43:30,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 380 states have (on average 1.6105263157894736) internal successors, (612), 435 states have internal predecessors, (612), 26 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-11 20:43:30,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 664 transitions. [2024-10-11 20:43:30,856 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 664 transitions. Word has length 42 [2024-10-11 20:43:30,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:43:30,856 INFO L471 AbstractCegarLoop]: Abstraction has 465 states and 664 transitions. [2024-10-11 20:43:30,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 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 20:43:30,857 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 664 transitions. [2024-10-11 20:43:30,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-10-11 20:43:30,857 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:43:30,857 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:43:30,874 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 20:43:31,058 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,SelfDestructingSolverStorable24 [2024-10-11 20:43:31,058 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-11 20:43:31,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:43:31,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1347705050, now seen corresponding path program 1 times [2024-10-11 20:43:31,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:43:31,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100042063] [2024-10-11 20:43:31,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:31,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:43:31,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 20:43:31,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [409144201] [2024-10-11 20:43:31,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:31,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:43:31,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:43:31,069 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 20:43:31,070 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 20:43:31,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:31,113 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 20:43:31,114 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:43:31,158 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 20:43:31,158 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 20:43:31,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:43:31,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100042063] [2024-10-11 20:43:31,158 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 20:43:31,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [409144201] [2024-10-11 20:43:31,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [409144201] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:43:31,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:43:31,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 20:43:31,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77495645] [2024-10-11 20:43:31,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:43:31,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 20:43:31,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:43:31,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 20:43:31,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 20:43:31,160 INFO L87 Difference]: Start difference. First operand 465 states and 664 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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 20:43:31,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:43:31,600 INFO L93 Difference]: Finished difference Result 495 states and 676 transitions. [2024-10-11 20:43:31,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 20:43:31,600 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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 43 [2024-10-11 20:43:31,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:43:31,602 INFO L225 Difference]: With dead ends: 495 [2024-10-11 20:43:31,602 INFO L226 Difference]: Without dead ends: 494 [2024-10-11 20:43:31,602 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 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 20:43:31,603 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 106 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 20:43:31,604 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 296 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 20:43:31,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2024-10-11 20:43:31,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 465. [2024-10-11 20:43:31,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 380 states have (on average 1.605263157894737) internal successors, (610), 435 states have internal predecessors, (610), 26 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-11 20:43:31,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 662 transitions. [2024-10-11 20:43:31,626 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 662 transitions. Word has length 43 [2024-10-11 20:43:31,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:43:31,627 INFO L471 AbstractCegarLoop]: Abstraction has 465 states and 662 transitions. [2024-10-11 20:43:31,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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 20:43:31,627 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 662 transitions. [2024-10-11 20:43:31,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-10-11 20:43:31,627 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:43:31,627 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] [2024-10-11 20:43:31,645 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-10-11 20:43:31,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,18 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:43:31,829 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-11 20:43:31,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:43:31,829 INFO L85 PathProgramCache]: Analyzing trace with hash -52404316, now seen corresponding path program 1 times [2024-10-11 20:43:31,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:43:31,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60456839] [2024-10-11 20:43:31,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:31,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:43:31,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:31,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 20:43:31,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:31,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 20:43:31,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:31,957 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 20:43:31,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:43:31,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60456839] [2024-10-11 20:43:31,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60456839] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:43:31,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [851083802] [2024-10-11 20:43:31,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:31,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:43:31,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:43:31,960 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 20:43:31,961 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 20:43:32,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:32,009 INFO L255 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-11 20:43:32,010 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:43:32,141 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 20:43:32,141 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 20:43:32,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [851083802] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:43:32,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 20:43:32,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [12] total 21 [2024-10-11 20:43:32,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615698196] [2024-10-11 20:43:32,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:43:32,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-11 20:43:32,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:43:32,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-11 20:43:32,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462 [2024-10-11 20:43:32,143 INFO L87 Difference]: Start difference. First operand 465 states and 662 transitions. Second operand has 11 states, 10 states have (on average 3.6) internal successors, (36), 11 states have internal predecessors, (36), 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 20:43:32,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:43:32,278 INFO L93 Difference]: Finished difference Result 465 states and 662 transitions. [2024-10-11 20:43:32,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 20:43:32,279 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.6) internal successors, (36), 11 states have internal predecessors, (36), 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 43 [2024-10-11 20:43:32,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:43:32,280 INFO L225 Difference]: With dead ends: 465 [2024-10-11 20:43:32,280 INFO L226 Difference]: Without dead ends: 462 [2024-10-11 20:43:32,281 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=134, Invalid=568, Unknown=0, NotChecked=0, Total=702 [2024-10-11 20:43:32,281 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 351 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 20:43:32,282 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 529 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 20:43:32,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2024-10-11 20:43:32,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 462. [2024-10-11 20:43:32,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 380 states have (on average 1.5842105263157895) internal successors, (602), 432 states have internal predecessors, (602), 26 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-11 20:43:32,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 654 transitions. [2024-10-11 20:43:32,304 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 654 transitions. Word has length 43 [2024-10-11 20:43:32,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:43:32,304 INFO L471 AbstractCegarLoop]: Abstraction has 462 states and 654 transitions. [2024-10-11 20:43:32,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.6) internal successors, (36), 11 states have internal predecessors, (36), 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 20:43:32,304 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 654 transitions. [2024-10-11 20:43:32,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-10-11 20:43:32,306 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:43:32,306 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] [2024-10-11 20:43:32,323 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 20:43:32,506 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,SelfDestructingSolverStorable26 [2024-10-11 20:43:32,507 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-11 20:43:32,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:43:32,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1624533714, now seen corresponding path program 1 times [2024-10-11 20:43:32,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:43:32,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142033201] [2024-10-11 20:43:32,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:32,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:43:32,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:32,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 20:43:32,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:32,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 20:43:32,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:32,650 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 20:43:32,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:43:32,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142033201] [2024-10-11 20:43:32,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142033201] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:43:32,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [965026158] [2024-10-11 20:43:32,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:32,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:43:32,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:43:32,653 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 20:43:32,654 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 20:43:32,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:32,698 INFO L255 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-11 20:43:32,699 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:43:32,827 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 20:43:32,828 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:43:32,983 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 20:43:32,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [965026158] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:43:32,984 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:43:32,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 10] total 30 [2024-10-11 20:43:32,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203970594] [2024-10-11 20:43:32,984 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:43:32,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-10-11 20:43:32,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:43:32,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-10-11 20:43:32,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=740, Unknown=0, NotChecked=0, Total=930 [2024-10-11 20:43:32,985 INFO L87 Difference]: Start difference. First operand 462 states and 654 transitions. Second operand has 31 states, 30 states have (on average 3.3666666666666667) internal successors, (101), 31 states have internal predecessors, (101), 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 20:43:33,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:43:33,466 INFO L93 Difference]: Finished difference Result 1316 states and 1818 transitions. [2024-10-11 20:43:33,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-10-11 20:43:33,467 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 3.3666666666666667) internal successors, (101), 31 states have internal predecessors, (101), 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 44 [2024-10-11 20:43:33,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:43:33,470 INFO L225 Difference]: With dead ends: 1316 [2024-10-11 20:43:33,470 INFO L226 Difference]: Without dead ends: 995 [2024-10-11 20:43:33,472 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 544 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=608, Invalid=2362, Unknown=0, NotChecked=0, Total=2970 [2024-10-11 20:43:33,472 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 643 mSDsluCounter, 2162 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 643 SdHoareTripleChecker+Valid, 2330 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 20:43:33,472 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [643 Valid, 2330 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 20:43:33,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 995 states. [2024-10-11 20:43:33,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 995 to 790. [2024-10-11 20:43:33,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 676 states have (on average 1.5917159763313609) internal successors, (1076), 728 states have internal predecessors, (1076), 54 states have call successors, (54), 7 states have call predecessors, (54), 7 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-10-11 20:43:33,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1184 transitions. [2024-10-11 20:43:33,530 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 1184 transitions. Word has length 44 [2024-10-11 20:43:33,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:43:33,530 INFO L471 AbstractCegarLoop]: Abstraction has 790 states and 1184 transitions. [2024-10-11 20:43:33,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 3.3666666666666667) internal successors, (101), 31 states have internal predecessors, (101), 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 20:43:33,531 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 1184 transitions. [2024-10-11 20:43:33,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-10-11 20:43:33,531 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:43:33,531 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:43:33,549 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-10-11 20:43:33,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,20 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:43:33,736 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-11 20:43:33,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:43:33,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1179708964, now seen corresponding path program 1 times [2024-10-11 20:43:33,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:43:33,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403572187] [2024-10-11 20:43:33,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:33,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:43:33,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:33,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 20:43:33,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:33,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 20:43:33,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:33,929 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 20:43:33,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:43:33,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403572187] [2024-10-11 20:43:33,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403572187] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:43:33,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [135525128] [2024-10-11 20:43:33,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:33,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:43:33,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:43:33,932 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 20:43:33,933 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 20:43:33,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:33,975 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 20:43:33,976 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:43:34,018 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 20:43:34,019 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 20:43:34,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [135525128] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:43:34,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 20:43:34,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2024-10-11 20:43:34,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320748806] [2024-10-11 20:43:34,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:43:34,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 20:43:34,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:43:34,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 20:43:34,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-11 20:43:34,020 INFO L87 Difference]: Start difference. First operand 790 states and 1184 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 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 20:43:34,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:43:34,326 INFO L93 Difference]: Finished difference Result 1679 states and 2505 transitions. [2024-10-11 20:43:34,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 20:43:34,326 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 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 45 [2024-10-11 20:43:34,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:43:34,330 INFO L225 Difference]: With dead ends: 1679 [2024-10-11 20:43:34,331 INFO L226 Difference]: Without dead ends: 1231 [2024-10-11 20:43:34,332 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-10-11 20:43:34,334 INFO L432 NwaCegarLoop]: 232 mSDtfsCounter, 216 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 20:43:34,334 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 780 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 20:43:34,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1231 states. [2024-10-11 20:43:34,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1231 to 887. [2024-10-11 20:43:34,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 887 states, 773 states have (on average 1.5808538163001293) internal successors, (1222), 825 states have internal predecessors, (1222), 54 states have call successors, (54), 7 states have call predecessors, (54), 7 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-10-11 20:43:34,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 887 states to 887 states and 1330 transitions. [2024-10-11 20:43:34,385 INFO L78 Accepts]: Start accepts. Automaton has 887 states and 1330 transitions. Word has length 45 [2024-10-11 20:43:34,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:43:34,385 INFO L471 AbstractCegarLoop]: Abstraction has 887 states and 1330 transitions. [2024-10-11 20:43:34,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 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 20:43:34,386 INFO L276 IsEmpty]: Start isEmpty. Operand 887 states and 1330 transitions. [2024-10-11 20:43:34,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-10-11 20:43:34,386 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:43:34,386 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, 1] [2024-10-11 20:43:34,402 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-10-11 20:43:34,590 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,SelfDestructingSolverStorable28 [2024-10-11 20:43:34,591 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-11 20:43:34,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:43:34,591 INFO L85 PathProgramCache]: Analyzing trace with hash -2103767920, now seen corresponding path program 1 times [2024-10-11 20:43:34,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:43:34,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171840778] [2024-10-11 20:43:34,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:34,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:43:34,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 20:43:34,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [768446841] [2024-10-11 20:43:34,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:34,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:43:34,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:43:34,604 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 20:43:34,605 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 20:43:34,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:34,649 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-11 20:43:34,650 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:43:34,872 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 20:43:34,872 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:43:35,196 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 20:43:35,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:43:35,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171840778] [2024-10-11 20:43:35,197 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 20:43:35,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [768446841] [2024-10-11 20:43:35,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [768446841] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:43:35,197 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-11 20:43:35,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 11 [2024-10-11 20:43:35,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88109376] [2024-10-11 20:43:35,198 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-11 20:43:35,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-11 20:43:35,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:43:35,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-11 20:43:35,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-10-11 20:43:35,199 INFO L87 Difference]: Start difference. First operand 887 states and 1330 transitions. Second operand has 12 states, 10 states have (on average 8.0) internal successors, (80), 10 states have internal predecessors, (80), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-11 20:43:36,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:43:36,063 INFO L93 Difference]: Finished difference Result 1659 states and 2482 transitions. [2024-10-11 20:43:36,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-11 20:43:36,064 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 8.0) internal successors, (80), 10 states have internal predecessors, (80), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) Word has length 46 [2024-10-11 20:43:36,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:43:36,069 INFO L225 Difference]: With dead ends: 1659 [2024-10-11 20:43:36,069 INFO L226 Difference]: Without dead ends: 1656 [2024-10-11 20:43:36,070 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2024-10-11 20:43:36,071 INFO L432 NwaCegarLoop]: 209 mSDtfsCounter, 750 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 751 SdHoareTripleChecker+Valid, 836 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-11 20:43:36,071 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [751 Valid, 836 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-11 20:43:36,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1656 states. [2024-10-11 20:43:36,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1656 to 1132. [2024-10-11 20:43:36,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1132 states, 1015 states have (on average 1.5891625615763547) internal successors, (1613), 1067 states have internal predecessors, (1613), 57 states have call successors, (57), 7 states have call predecessors, (57), 7 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2024-10-11 20:43:36,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1132 states to 1132 states and 1727 transitions. [2024-10-11 20:43:36,143 INFO L78 Accepts]: Start accepts. Automaton has 1132 states and 1727 transitions. Word has length 46 [2024-10-11 20:43:36,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:43:36,143 INFO L471 AbstractCegarLoop]: Abstraction has 1132 states and 1727 transitions. [2024-10-11 20:43:36,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 8.0) internal successors, (80), 10 states have internal predecessors, (80), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-11 20:43:36,143 INFO L276 IsEmpty]: Start isEmpty. Operand 1132 states and 1727 transitions. [2024-10-11 20:43:36,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-10-11 20:43:36,146 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:43:36,146 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, 1, 1] [2024-10-11 20:43:36,162 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 20:43:36,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,22 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:43:36,346 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-11 20:43:36,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:43:36,347 INFO L85 PathProgramCache]: Analyzing trace with hash -792295989, now seen corresponding path program 1 times [2024-10-11 20:43:36,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:43:36,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410182824] [2024-10-11 20:43:36,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:36,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:43:36,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 20:43:36,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1193382293] [2024-10-11 20:43:36,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:36,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:43:36,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:43:36,359 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 20:43:36,361 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 20:43:36,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:36,409 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-11 20:43:36,411 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:43:36,590 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 20:43:36,590 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:43:37,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:43:37,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410182824] [2024-10-11 20:43:37,598 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 20:43:37,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1193382293] [2024-10-11 20:43:37,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1193382293] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:43:37,599 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-11 20:43:37,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-10-11 20:43:37,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96015272] [2024-10-11 20:43:37,599 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-11 20:43:37,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 20:43:37,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:43:37,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 20:43:37,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-10-11 20:43:37,600 INFO L87 Difference]: Start difference. First operand 1132 states and 1727 transitions. Second operand has 8 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 20:43:37,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:43:37,990 INFO L93 Difference]: Finished difference Result 1569 states and 2391 transitions. [2024-10-11 20:43:37,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 20:43:37,991 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 47 [2024-10-11 20:43:37,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:43:37,997 INFO L225 Difference]: With dead ends: 1569 [2024-10-11 20:43:37,997 INFO L226 Difference]: Without dead ends: 1567 [2024-10-11 20:43:37,998 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2024-10-11 20:43:37,998 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 445 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 20:43:37,999 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [453 Valid, 491 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 20:43:38,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1567 states. [2024-10-11 20:43:38,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1567 to 1437. [2024-10-11 20:43:38,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1437 states, 1296 states have (on average 1.6095679012345678) internal successors, (2086), 1348 states have internal predecessors, (2086), 81 states have call successors, (81), 7 states have call predecessors, (81), 7 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-10-11 20:43:38,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1437 states to 1437 states and 2248 transitions. [2024-10-11 20:43:38,085 INFO L78 Accepts]: Start accepts. Automaton has 1437 states and 2248 transitions. Word has length 47 [2024-10-11 20:43:38,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:43:38,086 INFO L471 AbstractCegarLoop]: Abstraction has 1437 states and 2248 transitions. [2024-10-11 20:43:38,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 20:43:38,086 INFO L276 IsEmpty]: Start isEmpty. Operand 1437 states and 2248 transitions. [2024-10-11 20:43:38,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-10-11 20:43:38,088 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:43:38,088 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, 1, 1, 1] [2024-10-11 20:43:38,105 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 20:43:38,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,23 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:43:38,289 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-11 20:43:38,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:43:38,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1208628210, now seen corresponding path program 1 times [2024-10-11 20:43:38,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:43:38,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782016136] [2024-10-11 20:43:38,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:38,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:43:38,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 20:43:38,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1822617350] [2024-10-11 20:43:38,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:38,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:43:38,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:43:38,301 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 20:43:38,302 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 20:43:38,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:38,354 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-11 20:43:38,355 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:43:38,585 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 20:43:38,585 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:43:38,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:43:38,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782016136] [2024-10-11 20:43:38,749 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 20:43:38,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1822617350] [2024-10-11 20:43:38,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1822617350] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:43:38,749 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-11 20:43:38,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-10-11 20:43:38,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153208399] [2024-10-11 20:43:38,750 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-11 20:43:38,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 20:43:38,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:43:38,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 20:43:38,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-10-11 20:43:38,751 INFO L87 Difference]: Start difference. First operand 1437 states and 2248 transitions. Second operand has 8 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-11 20:43:39,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:43:39,184 INFO L93 Difference]: Finished difference Result 1503 states and 2273 transitions. [2024-10-11 20:43:39,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 20:43:39,185 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 48 [2024-10-11 20:43:39,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:43:39,190 INFO L225 Difference]: With dead ends: 1503 [2024-10-11 20:43:39,191 INFO L226 Difference]: Without dead ends: 1501 [2024-10-11 20:43:39,191 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-10-11 20:43:39,192 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 287 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 20:43:39,192 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 502 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 20:43:39,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1501 states. [2024-10-11 20:43:39,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1501 to 1437. [2024-10-11 20:43:39,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1437 states, 1296 states have (on average 1.6018518518518519) internal successors, (2076), 1348 states have internal predecessors, (2076), 81 states have call successors, (81), 7 states have call predecessors, (81), 7 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-10-11 20:43:39,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1437 states to 1437 states and 2238 transitions. [2024-10-11 20:43:39,300 INFO L78 Accepts]: Start accepts. Automaton has 1437 states and 2238 transitions. Word has length 48 [2024-10-11 20:43:39,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:43:39,300 INFO L471 AbstractCegarLoop]: Abstraction has 1437 states and 2238 transitions. [2024-10-11 20:43:39,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-11 20:43:39,300 INFO L276 IsEmpty]: Start isEmpty. Operand 1437 states and 2238 transitions. [2024-10-11 20:43:39,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-10-11 20:43:39,301 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:43:39,301 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, 1, 1, 1, 1] [2024-10-11 20:43:39,317 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 20:43:39,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,24 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:43:39,502 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-11 20:43:39,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:43:39,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1187231059, now seen corresponding path program 1 times [2024-10-11 20:43:39,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:43:39,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302641699] [2024-10-11 20:43:39,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:39,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:43:39,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 20:43:39,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [154843678] [2024-10-11 20:43:39,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:39,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:43:39,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:43:39,515 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 20:43:39,516 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 20:43:39,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:39,564 INFO L255 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-11 20:43:39,565 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:43:39,754 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 20:43:39,754 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:43:40,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:43:40,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302641699] [2024-10-11 20:43:40,487 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 20:43:40,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [154843678] [2024-10-11 20:43:40,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [154843678] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:43:40,488 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-11 20:43:40,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-10-11 20:43:40,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354985924] [2024-10-11 20:43:40,488 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-11 20:43:40,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 20:43:40,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:43:40,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 20:43:40,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-10-11 20:43:40,489 INFO L87 Difference]: Start difference. First operand 1437 states and 2238 transitions. Second operand has 8 states, 6 states have (on average 7.5) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-11 20:43:40,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:43:40,781 INFO L93 Difference]: Finished difference Result 1503 states and 2263 transitions. [2024-10-11 20:43:40,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 20:43:40,782 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 7.5) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 49 [2024-10-11 20:43:40,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:43:40,786 INFO L225 Difference]: With dead ends: 1503 [2024-10-11 20:43:40,786 INFO L226 Difference]: Without dead ends: 1501 [2024-10-11 20:43:40,787 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-10-11 20:43:40,787 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 486 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 683 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 20:43:40,788 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [498 Valid, 683 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 20:43:40,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1501 states. [2024-10-11 20:43:40,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1501 to 1437. [2024-10-11 20:43:40,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1437 states, 1296 states have (on average 1.5941358024691359) internal successors, (2066), 1348 states have internal predecessors, (2066), 81 states have call successors, (81), 7 states have call predecessors, (81), 7 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-10-11 20:43:40,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1437 states to 1437 states and 2228 transitions. [2024-10-11 20:43:40,883 INFO L78 Accepts]: Start accepts. Automaton has 1437 states and 2228 transitions. Word has length 49 [2024-10-11 20:43:40,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:43:40,884 INFO L471 AbstractCegarLoop]: Abstraction has 1437 states and 2228 transitions. [2024-10-11 20:43:40,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 7.5) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-11 20:43:40,884 INFO L276 IsEmpty]: Start isEmpty. Operand 1437 states and 2228 transitions. [2024-10-11 20:43:40,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-10-11 20:43:40,884 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:43:40,885 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:43:40,902 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 20:43:41,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-10-11 20:43:41,086 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-11 20:43:41,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:43:41,088 INFO L85 PathProgramCache]: Analyzing trace with hash 568385712, now seen corresponding path program 1 times [2024-10-11 20:43:41,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:43:41,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336808819] [2024-10-11 20:43:41,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:41,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:43:41,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:41,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 20:43:41,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:41,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 20:43:41,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:41,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 20:43:41,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:41,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-11 20:43:41,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:41,252 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-11 20:43:41,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:43:41,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336808819] [2024-10-11 20:43:41,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336808819] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:43:41,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1571512974] [2024-10-11 20:43:41,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:41,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:43:41,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:43:41,255 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 20:43:41,257 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 20:43:41,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:41,304 INFO L255 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 20:43:41,305 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:43:41,415 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-11 20:43:41,415 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 20:43:41,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1571512974] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:43:41,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 20:43:41,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2024-10-11 20:43:41,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276347560] [2024-10-11 20:43:41,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:43:41,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 20:43:41,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:43:41,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 20:43:41,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-10-11 20:43:41,418 INFO L87 Difference]: Start difference. First operand 1437 states and 2228 transitions. Second operand has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 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 20:43:42,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:43:42,334 INFO L93 Difference]: Finished difference Result 1469 states and 2236 transitions. [2024-10-11 20:43:42,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 20:43:42,335 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 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 51 [2024-10-11 20:43:42,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:43:42,340 INFO L225 Difference]: With dead ends: 1469 [2024-10-11 20:43:42,340 INFO L226 Difference]: Without dead ends: 1468 [2024-10-11 20:43:42,341 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-10-11 20:43:42,341 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 314 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-11 20:43:42,342 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 312 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-11 20:43:42,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1468 states. [2024-10-11 20:43:42,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1468 to 1437. [2024-10-11 20:43:42,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1437 states, 1296 states have (on average 1.591820987654321) internal successors, (2063), 1348 states have internal predecessors, (2063), 81 states have call successors, (81), 7 states have call predecessors, (81), 7 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-10-11 20:43:42,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1437 states to 1437 states and 2225 transitions. [2024-10-11 20:43:42,423 INFO L78 Accepts]: Start accepts. Automaton has 1437 states and 2225 transitions. Word has length 51 [2024-10-11 20:43:42,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:43:42,423 INFO L471 AbstractCegarLoop]: Abstraction has 1437 states and 2225 transitions. [2024-10-11 20:43:42,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 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 20:43:42,424 INFO L276 IsEmpty]: Start isEmpty. Operand 1437 states and 2225 transitions. [2024-10-11 20:43:42,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-10-11 20:43:42,424 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:43:42,424 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, 1, 1, 1, 1, 1] [2024-10-11 20:43:42,440 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-10-11 20:43:42,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-10-11 20:43:42,625 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-11 20:43:42,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:43:42,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1850542932, now seen corresponding path program 1 times [2024-10-11 20:43:42,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:43:42,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078507892] [2024-10-11 20:43:42,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:42,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:43:42,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 20:43:42,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [245394381] [2024-10-11 20:43:42,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:42,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:43:42,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:43:42,636 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 20:43:42,638 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 20:43:42,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:42,676 INFO L255 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-11 20:43:42,677 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:43:42,863 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 20:43:42,863 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:43:43,816 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 20:43:43,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:43:43,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078507892] [2024-10-11 20:43:43,817 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 20:43:43,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [245394381] [2024-10-11 20:43:43,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [245394381] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:43:43,817 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-11 20:43:43,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-10-11 20:43:43,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725242973] [2024-10-11 20:43:43,817 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-11 20:43:43,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-11 20:43:43,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:43:43,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-11 20:43:43,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2024-10-11 20:43:43,819 INFO L87 Difference]: Start difference. First operand 1437 states and 2225 transitions. Second operand has 15 states, 14 states have (on average 6.214285714285714) internal successors, (87), 13 states have internal predecessors, (87), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-11 20:43:46,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:43:46,506 INFO L93 Difference]: Finished difference Result 1510 states and 2250 transitions. [2024-10-11 20:43:46,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-11 20:43:46,507 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 6.214285714285714) internal successors, (87), 13 states have internal predecessors, (87), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 50 [2024-10-11 20:43:46,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:43:46,513 INFO L225 Difference]: With dead ends: 1510 [2024-10-11 20:43:46,514 INFO L226 Difference]: Without dead ends: 1509 [2024-10-11 20:43:46,515 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2024-10-11 20:43:46,515 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 506 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 606 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 761 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-10-11 20:43:46,515 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 761 Invalid, 628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 606 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-10-11 20:43:46,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1509 states. [2024-10-11 20:43:46,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1509 to 1437. [2024-10-11 20:43:46,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1437 states, 1296 states have (on average 1.5848765432098766) internal successors, (2054), 1348 states have internal predecessors, (2054), 81 states have call successors, (81), 7 states have call predecessors, (81), 7 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-10-11 20:43:46,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1437 states to 1437 states and 2216 transitions. [2024-10-11 20:43:46,605 INFO L78 Accepts]: Start accepts. Automaton has 1437 states and 2216 transitions. Word has length 50 [2024-10-11 20:43:46,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:43:46,606 INFO L471 AbstractCegarLoop]: Abstraction has 1437 states and 2216 transitions. [2024-10-11 20:43:46,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 6.214285714285714) internal successors, (87), 13 states have internal predecessors, (87), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-11 20:43:46,606 INFO L276 IsEmpty]: Start isEmpty. Operand 1437 states and 2216 transitions. [2024-10-11 20:43:46,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-10-11 20:43:46,606 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:43:46,607 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:43:46,624 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-10-11 20:43:46,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,27 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:43:46,809 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-11 20:43:46,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:43:46,810 INFO L85 PathProgramCache]: Analyzing trace with hash 440088009, now seen corresponding path program 1 times [2024-10-11 20:43:46,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:43:46,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597828245] [2024-10-11 20:43:46,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:46,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:43:46,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 20:43:46,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [380618519] [2024-10-11 20:43:46,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:46,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:43:46,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:43:46,822 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 20:43:46,824 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 20:43:46,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:46,863 INFO L255 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 20:43:46,864 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:43:46,955 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-11 20:43:46,955 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 20:43:46,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:43:46,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597828245] [2024-10-11 20:43:46,956 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 20:43:46,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [380618519] [2024-10-11 20:43:46,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [380618519] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:43:46,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:43:46,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 20:43:46,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648692561] [2024-10-11 20:43:46,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:43:46,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 20:43:46,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:43:46,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 20:43:46,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 20:43:46,957 INFO L87 Difference]: Start difference. First operand 1437 states and 2216 transitions. Second operand has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 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 20:43:47,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:43:47,255 INFO L93 Difference]: Finished difference Result 1469 states and 2224 transitions. [2024-10-11 20:43:47,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 20:43:47,256 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 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 52 [2024-10-11 20:43:47,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:43:47,261 INFO L225 Difference]: With dead ends: 1469 [2024-10-11 20:43:47,261 INFO L226 Difference]: Without dead ends: 1468 [2024-10-11 20:43:47,262 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-11 20:43:47,262 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 311 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 20:43:47,263 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [315 Valid, 314 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 20:43:47,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1468 states. [2024-10-11 20:43:47,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1468 to 1437. [2024-10-11 20:43:47,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1437 states, 1296 states have (on average 1.5825617283950617) internal successors, (2051), 1348 states have internal predecessors, (2051), 81 states have call successors, (81), 7 states have call predecessors, (81), 7 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-10-11 20:43:47,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1437 states to 1437 states and 2213 transitions. [2024-10-11 20:43:47,344 INFO L78 Accepts]: Start accepts. Automaton has 1437 states and 2213 transitions. Word has length 52 [2024-10-11 20:43:47,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:43:47,344 INFO L471 AbstractCegarLoop]: Abstraction has 1437 states and 2213 transitions. [2024-10-11 20:43:47,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 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 20:43:47,345 INFO L276 IsEmpty]: Start isEmpty. Operand 1437 states and 2213 transitions. [2024-10-11 20:43:47,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-10-11 20:43:47,345 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:43:47,345 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, 1, 1, 1, 1, 1, 1] [2024-10-11 20:43:47,363 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-10-11 20:43:47,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,28 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:43:47,546 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-11 20:43:47,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:43:47,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1532256143, now seen corresponding path program 1 times [2024-10-11 20:43:47,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:43:47,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662682658] [2024-10-11 20:43:47,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:47,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:43:47,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 20:43:47,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1084063000] [2024-10-11 20:43:47,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:47,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:43:47,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:43:47,559 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 20:43:47,561 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 20:43:47,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:47,598 INFO L255 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-11 20:43:47,598 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:43:47,759 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 20:43:47,759 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:43:48,299 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 20:43:48,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:43:48,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662682658] [2024-10-11 20:43:48,300 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 20:43:48,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1084063000] [2024-10-11 20:43:48,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1084063000] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:43:48,300 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-11 20:43:48,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-10-11 20:43:48,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088989125] [2024-10-11 20:43:48,300 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-11 20:43:48,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 20:43:48,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:43:48,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 20:43:48,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-10-11 20:43:48,301 INFO L87 Difference]: Start difference. First operand 1437 states and 2213 transitions. Second operand has 10 states, 9 states have (on average 9.444444444444445) internal successors, (85), 10 states have internal predecessors, (85), 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 20:43:50,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:43:50,418 INFO L93 Difference]: Finished difference Result 1512 states and 2240 transitions. [2024-10-11 20:43:50,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 20:43:50,418 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.444444444444445) internal successors, (85), 10 states have internal predecessors, (85), 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 51 [2024-10-11 20:43:50,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:43:50,424 INFO L225 Difference]: With dead ends: 1512 [2024-10-11 20:43:50,424 INFO L226 Difference]: Without dead ends: 1510 [2024-10-11 20:43:50,425 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2024-10-11 20:43:50,425 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 429 mSDsluCounter, 662 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 844 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-11 20:43:50,425 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [438 Valid, 844 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-11 20:43:50,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1510 states. [2024-10-11 20:43:50,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1510 to 1438. [2024-10-11 20:43:50,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1438 states, 1297 states have (on average 1.5713184271395528) internal successors, (2038), 1349 states have internal predecessors, (2038), 81 states have call successors, (81), 7 states have call predecessors, (81), 7 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-10-11 20:43:50,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1438 states to 1438 states and 2200 transitions. [2024-10-11 20:43:50,508 INFO L78 Accepts]: Start accepts. Automaton has 1438 states and 2200 transitions. Word has length 51 [2024-10-11 20:43:50,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:43:50,510 INFO L471 AbstractCegarLoop]: Abstraction has 1438 states and 2200 transitions. [2024-10-11 20:43:50,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.444444444444445) internal successors, (85), 10 states have internal predecessors, (85), 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 20:43:50,510 INFO L276 IsEmpty]: Start isEmpty. Operand 1438 states and 2200 transitions. [2024-10-11 20:43:50,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-11 20:43:50,512 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:43:50,512 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:43:50,529 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-10-11 20:43:50,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-10-11 20:43:50,713 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-11 20:43:50,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:43:50,713 INFO L85 PathProgramCache]: Analyzing trace with hash 454483138, now seen corresponding path program 1 times [2024-10-11 20:43:50,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:43:50,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81874623] [2024-10-11 20:43:50,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:50,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:43:50,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 20:43:50,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1343210706] [2024-10-11 20:43:50,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:50,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:43:50,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:43:50,732 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 20:43:50,734 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 20:43:50,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:50,771 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 20:43:50,772 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:43:50,857 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-11 20:43:50,857 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 20:43:50,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:43:50,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81874623] [2024-10-11 20:43:50,857 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 20:43:50,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1343210706] [2024-10-11 20:43:50,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1343210706] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:43:50,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:43:50,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 20:43:50,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53146524] [2024-10-11 20:43:50,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:43:50,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 20:43:50,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:43:50,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 20:43:50,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 20:43:50,858 INFO L87 Difference]: Start difference. First operand 1438 states and 2200 transitions. Second operand has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 20:43:51,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:43:51,293 INFO L93 Difference]: Finished difference Result 1500 states and 2267 transitions. [2024-10-11 20:43:51,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 20:43:51,294 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 58 [2024-10-11 20:43:51,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:43:51,298 INFO L225 Difference]: With dead ends: 1500 [2024-10-11 20:43:51,299 INFO L226 Difference]: Without dead ends: 1497 [2024-10-11 20:43:51,299 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-10-11 20:43:51,300 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 262 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 20:43:51,300 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 235 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 20:43:51,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1497 states. [2024-10-11 20:43:51,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1497 to 1472. [2024-10-11 20:43:51,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 1327 states have (on average 1.5614167294649586) internal successors, (2072), 1379 states have internal predecessors, (2072), 85 states have call successors, (85), 7 states have call predecessors, (85), 7 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2024-10-11 20:43:51,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 2242 transitions. [2024-10-11 20:43:51,375 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 2242 transitions. Word has length 58 [2024-10-11 20:43:51,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:43:51,376 INFO L471 AbstractCegarLoop]: Abstraction has 1472 states and 2242 transitions. [2024-10-11 20:43:51,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 20:43:51,376 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 2242 transitions. [2024-10-11 20:43:51,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-10-11 20:43:51,377 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:43:51,377 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:43:51,393 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2024-10-11 20:43:51,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,30 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:43:51,578 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-11 20:43:51,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:43:51,578 INFO L85 PathProgramCache]: Analyzing trace with hash 673953530, now seen corresponding path program 1 times [2024-10-11 20:43:51,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:43:51,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364760158] [2024-10-11 20:43:51,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:51,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:43:51,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 20:43:51,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1125954806] [2024-10-11 20:43:51,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:51,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:43:51,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:43:51,589 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 20:43:51,590 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 20:43:51,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:51,640 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-11 20:43:51,641 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:43:51,845 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 20:43:51,845 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:43:56,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:43:56,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364760158] [2024-10-11 20:43:56,147 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 20:43:56,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1125954806] [2024-10-11 20:43:56,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1125954806] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:43:56,147 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-11 20:43:56,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-10-11 20:43:56,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359022152] [2024-10-11 20:43:56,147 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-11 20:43:56,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 20:43:56,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:43:56,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 20:43:56,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=112, Unknown=1, NotChecked=0, Total=156 [2024-10-11 20:43:56,148 INFO L87 Difference]: Start difference. First operand 1472 states and 2242 transitions. Second operand has 9 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 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 20:43:56,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:43:56,462 INFO L93 Difference]: Finished difference Result 1594 states and 2375 transitions. [2024-10-11 20:43:56,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 20:43:56,463 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 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 57 [2024-10-11 20:43:56,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:43:56,469 INFO L225 Difference]: With dead ends: 1594 [2024-10-11 20:43:56,469 INFO L226 Difference]: Without dead ends: 1592 [2024-10-11 20:43:56,470 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=43, Invalid=112, Unknown=1, NotChecked=0, Total=156 [2024-10-11 20:43:56,470 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 349 mSDsluCounter, 666 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 20:43:56,470 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 826 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 20:43:56,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1592 states. [2024-10-11 20:43:56,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1592 to 1472. [2024-10-11 20:43:56,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 1327 states have (on average 1.5538809344385833) internal successors, (2062), 1379 states have internal predecessors, (2062), 85 states have call successors, (85), 7 states have call predecessors, (85), 7 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2024-10-11 20:43:56,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 2232 transitions. [2024-10-11 20:43:56,570 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 2232 transitions. Word has length 57 [2024-10-11 20:43:56,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:43:56,570 INFO L471 AbstractCegarLoop]: Abstraction has 1472 states and 2232 transitions. [2024-10-11 20:43:56,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 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 20:43:56,572 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 2232 transitions. [2024-10-11 20:43:56,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-11 20:43:56,576 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:43:56,576 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:43:56,593 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2024-10-11 20:43:56,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-10-11 20:43:56,776 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-11 20:43:56,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:43:56,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1204075516, now seen corresponding path program 1 times [2024-10-11 20:43:56,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:43:56,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46641455] [2024-10-11 20:43:56,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:56,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:43:56,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 20:43:56,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [562273369] [2024-10-11 20:43:56,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:56,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:43:56,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:43:56,793 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 20:43:56,794 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 20:43:56,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:56,833 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 20:43:56,833 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:43:56,910 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-11 20:43:56,910 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 20:43:56,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:43:56,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46641455] [2024-10-11 20:43:56,910 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 20:43:56,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [562273369] [2024-10-11 20:43:56,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [562273369] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:43:56,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:43:56,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 20:43:56,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092869685] [2024-10-11 20:43:56,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:43:56,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 20:43:56,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:43:56,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 20:43:56,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 20:43:56,911 INFO L87 Difference]: Start difference. First operand 1472 states and 2232 transitions. Second operand has 5 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 20:43:57,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:43:57,221 INFO L93 Difference]: Finished difference Result 1498 states and 2248 transitions. [2024-10-11 20:43:57,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 20:43:57,221 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 59 [2024-10-11 20:43:57,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:43:57,231 INFO L225 Difference]: With dead ends: 1498 [2024-10-11 20:43:57,232 INFO L226 Difference]: Without dead ends: 1497 [2024-10-11 20:43:57,233 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-10-11 20:43:57,233 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 259 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 20:43:57,237 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 236 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 20:43:57,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1497 states. [2024-10-11 20:43:57,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1497 to 1472. [2024-10-11 20:43:57,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 1327 states have (on average 1.5516201959306706) internal successors, (2059), 1379 states have internal predecessors, (2059), 85 states have call successors, (85), 7 states have call predecessors, (85), 7 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2024-10-11 20:43:57,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 2229 transitions. [2024-10-11 20:43:57,351 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 2229 transitions. Word has length 59 [2024-10-11 20:43:57,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:43:57,351 INFO L471 AbstractCegarLoop]: Abstraction has 1472 states and 2229 transitions. [2024-10-11 20:43:57,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 20:43:57,352 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 2229 transitions. [2024-10-11 20:43:57,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-11 20:43:57,352 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:43:57,353 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:43:57,368 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-10-11 20:43:57,553 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,SelfDestructingSolverStorable39 [2024-10-11 20:43:57,553 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-11 20:43:57,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:43:57,554 INFO L85 PathProgramCache]: Analyzing trace with hash -582276946, now seen corresponding path program 1 times [2024-10-11 20:43:57,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:43:57,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549703688] [2024-10-11 20:43:57,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:57,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:43:57,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 20:43:57,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [273673702] [2024-10-11 20:43:57,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:43:57,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:43:57,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:43:57,570 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 20:43:57,571 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 20:43:57,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:43:57,614 INFO L255 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-11 20:43:57,615 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:43:57,859 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 20:43:57,860 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:44:05,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:44:05,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549703688] [2024-10-11 20:44:05,842 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 20:44:05,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [273673702] [2024-10-11 20:44:05,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [273673702] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:44:05,842 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-11 20:44:05,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-10-11 20:44:05,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596169100] [2024-10-11 20:44:05,842 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-11 20:44:05,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 20:44:05,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:44:05,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 20:44:05,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=112, Unknown=2, NotChecked=0, Total=156 [2024-10-11 20:44:05,843 INFO L87 Difference]: Start difference. First operand 1472 states and 2229 transitions. Second operand has 9 states, 7 states have (on average 7.428571428571429) internal successors, (52), 8 states have internal predecessors, (52), 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 20:44:06,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:44:06,304 INFO L93 Difference]: Finished difference Result 1594 states and 2362 transitions. [2024-10-11 20:44:06,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 20:44:06,304 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 7.428571428571429) internal successors, (52), 8 states have internal predecessors, (52), 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 58 [2024-10-11 20:44:06,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:44:06,309 INFO L225 Difference]: With dead ends: 1594 [2024-10-11 20:44:06,309 INFO L226 Difference]: Without dead ends: 1592 [2024-10-11 20:44:06,309 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=53, Invalid=127, Unknown=2, NotChecked=0, Total=182 [2024-10-11 20:44:06,310 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 351 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 20:44:06,310 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [362 Valid, 567 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 20:44:06,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1592 states. [2024-10-11 20:44:06,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1592 to 1472. [2024-10-11 20:44:06,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 1327 states have (on average 1.5440844009042953) internal successors, (2049), 1379 states have internal predecessors, (2049), 85 states have call successors, (85), 7 states have call predecessors, (85), 7 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2024-10-11 20:44:06,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 2219 transitions. [2024-10-11 20:44:06,409 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 2219 transitions. Word has length 58 [2024-10-11 20:44:06,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:44:06,410 INFO L471 AbstractCegarLoop]: Abstraction has 1472 states and 2219 transitions. [2024-10-11 20:44:06,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 7.428571428571429) internal successors, (52), 8 states have internal predecessors, (52), 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 20:44:06,410 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 2219 transitions. [2024-10-11 20:44:06,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-11 20:44:06,411 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:44:06,411 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:44:06,427 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 20:44:06,611 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,SelfDestructingSolverStorable40 [2024-10-11 20:44:06,611 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-11 20:44:06,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:44:06,612 INFO L85 PathProgramCache]: Analyzing trace with hash -870716036, now seen corresponding path program 1 times [2024-10-11 20:44:06,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:44:06,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786221594] [2024-10-11 20:44:06,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:44:06,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:44:06,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 20:44:06,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1281305847] [2024-10-11 20:44:06,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:44:06,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:44:06,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:44:06,623 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 20:44:06,628 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 20:44:06,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:44:06,669 INFO L255 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-11 20:44:06,670 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:44:06,924 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 20:44:06,924 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:44:11,311 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 20:44:11,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:44:11,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786221594] [2024-10-11 20:44:11,312 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 20:44:11,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1281305847] [2024-10-11 20:44:11,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1281305847] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:44:11,312 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-11 20:44:11,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 15 [2024-10-11 20:44:11,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218908002] [2024-10-11 20:44:11,313 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-11 20:44:11,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-11 20:44:11,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:44:11,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-11 20:44:11,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=184, Unknown=1, NotChecked=0, Total=240 [2024-10-11 20:44:11,314 INFO L87 Difference]: Start difference. First operand 1472 states and 2219 transitions. Second operand has 16 states, 14 states have (on average 7.071428571428571) internal successors, (99), 14 states have internal predecessors, (99), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2024-10-11 20:44:17,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-10-11 20:44:21,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-10-11 20:44:25,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-10-11 20:44:29,190 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-10-11 20:44:33,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-10-11 20:44:37,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-10-11 20:44:37,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:44:37,906 INFO L93 Difference]: Finished difference Result 3575 states and 5380 transitions. [2024-10-11 20:44:37,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-11 20:44:37,907 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 7.071428571428571) internal successors, (99), 14 states have internal predecessors, (99), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) Word has length 59 [2024-10-11 20:44:37,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:44:37,915 INFO L225 Difference]: With dead ends: 3575 [2024-10-11 20:44:37,915 INFO L226 Difference]: Without dead ends: 3570 [2024-10-11 20:44:37,916 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=203, Invalid=552, Unknown=1, NotChecked=0, Total=756 [2024-10-11 20:44:37,917 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 2025 mSDsluCounter, 1096 mSDsCounter, 0 mSdLazyCounter, 813 mSolverCounterSat, 130 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2027 SdHoareTripleChecker+Valid, 1215 SdHoareTripleChecker+Invalid, 949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 813 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.2s IncrementalHoareTripleChecker+Time [2024-10-11 20:44:37,917 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2027 Valid, 1215 Invalid, 949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 813 Invalid, 6 Unknown, 0 Unchecked, 26.2s Time] [2024-10-11 20:44:37,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3570 states. [2024-10-11 20:44:38,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3570 to 1755. [2024-10-11 20:44:38,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1755 states, 1608 states have (on average 1.527363184079602) internal successors, (2456), 1660 states have internal predecessors, (2456), 87 states have call successors, (87), 7 states have call predecessors, (87), 7 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2024-10-11 20:44:38,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1755 states to 1755 states and 2630 transitions. [2024-10-11 20:44:38,049 INFO L78 Accepts]: Start accepts. Automaton has 1755 states and 2630 transitions. Word has length 59 [2024-10-11 20:44:38,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:44:38,050 INFO L471 AbstractCegarLoop]: Abstraction has 1755 states and 2630 transitions. [2024-10-11 20:44:38,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 7.071428571428571) internal successors, (99), 14 states have internal predecessors, (99), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2024-10-11 20:44:38,050 INFO L276 IsEmpty]: Start isEmpty. Operand 1755 states and 2630 transitions. [2024-10-11 20:44:38,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-10-11 20:44:38,051 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:44:38,051 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:44:38,067 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-10-11 20:44:38,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,34 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:44:38,252 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-11 20:44:38,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:44:38,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1222393232, now seen corresponding path program 1 times [2024-10-11 20:44:38,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:44:38,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6311756] [2024-10-11 20:44:38,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:44:38,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:44:38,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 20:44:38,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [31190503] [2024-10-11 20:44:38,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:44:38,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:44:38,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:44:38,270 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 20:44:38,271 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 20:44:38,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:44:38,314 INFO L255 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-11 20:44:38,315 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:44:38,535 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 20:44:38,535 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:44:43,367 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 20:44:43,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:44:43,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6311756] [2024-10-11 20:44:43,368 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 20:44:43,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [31190503] [2024-10-11 20:44:43,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [31190503] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:44:43,368 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-11 20:44:43,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 15 [2024-10-11 20:44:43,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545319739] [2024-10-11 20:44:43,368 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-11 20:44:43,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-11 20:44:43,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:44:43,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-11 20:44:43,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=184, Unknown=1, NotChecked=0, Total=240 [2024-10-11 20:44:43,380 INFO L87 Difference]: Start difference. First operand 1755 states and 2630 transitions. Second operand has 16 states, 14 states have (on average 7.214285714285714) internal successors, (101), 14 states have internal predecessors, (101), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6)