./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursive-simple/id_i25_o25-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursive-simple/id_i25_o25-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 76955366716759eb9478710f6ef46e3de93d252b9c3177ff4beaca56ee5c75a7 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 23:06:00,712 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 23:06:00,775 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-22 23:06:00,779 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 23:06:00,780 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 23:06:00,808 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 23:06:00,809 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 23:06:00,809 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 23:06:00,809 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 23:06:00,810 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 23:06:00,811 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 23:06:00,811 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 23:06:00,812 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 23:06:00,812 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 23:06:00,812 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 23:06:00,813 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 23:06:00,814 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 23:06:00,814 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 23:06:00,814 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 23:06:00,814 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 23:06:00,814 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 23:06:00,817 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 23:06:00,817 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 23:06:00,817 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 23:06:00,817 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 23:06:00,818 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-22 23:06:00,818 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 23:06:00,818 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 23:06:00,818 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 23:06:00,818 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 23:06:00,818 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 23:06:00,818 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 23:06:00,819 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 23:06:00,819 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 23:06:00,819 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 23:06:00,819 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 23:06:00,819 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 23:06:00,819 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 23:06:00,819 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 23:06:00,819 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 23:06:00,820 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 23:06:00,820 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 23:06:00,820 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 23:06:00,820 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 23:06:00,820 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 76955366716759eb9478710f6ef46e3de93d252b9c3177ff4beaca56ee5c75a7 [2024-11-22 23:06:01,005 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 23:06:01,021 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 23:06:01,024 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 23:06:01,025 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 23:06:01,025 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 23:06:01,026 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/id_i25_o25-2.c [2024-11-22 23:06:02,248 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 23:06:02,376 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 23:06:02,377 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/id_i25_o25-2.c [2024-11-22 23:06:02,382 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9caa434c0/a6d85292de904a628bbcaa681ee6e3fd/FLAG875b88ebb [2024-11-22 23:06:02,394 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9caa434c0/a6d85292de904a628bbcaa681ee6e3fd [2024-11-22 23:06:02,396 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 23:06:02,397 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 23:06:02,400 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 23:06:02,400 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 23:06:02,404 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 23:06:02,405 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:06:02" (1/1) ... [2024-11-22 23:06:02,405 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25d98783 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:02, skipping insertion in model container [2024-11-22 23:06:02,405 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:06:02" (1/1) ... [2024-11-22 23:06:02,422 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 23:06:02,557 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 23:06:02,564 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 23:06:02,574 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 23:06:02,585 INFO L204 MainTranslator]: Completed translation [2024-11-22 23:06:02,586 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:02 WrapperNode [2024-11-22 23:06:02,586 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 23:06:02,587 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 23:06:02,587 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 23:06:02,587 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 23:06:02,593 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:02" (1/1) ... [2024-11-22 23:06:02,597 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:02" (1/1) ... [2024-11-22 23:06:02,610 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 19 [2024-11-22 23:06:02,610 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 23:06:02,611 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 23:06:02,611 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 23:06:02,611 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 23:06:02,618 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:02" (1/1) ... [2024-11-22 23:06:02,618 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:02" (1/1) ... [2024-11-22 23:06:02,619 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:02" (1/1) ... [2024-11-22 23:06:02,626 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-22 23:06:02,627 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:02" (1/1) ... [2024-11-22 23:06:02,627 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:02" (1/1) ... [2024-11-22 23:06:02,628 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:02" (1/1) ... [2024-11-22 23:06:02,629 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:02" (1/1) ... [2024-11-22 23:06:02,630 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:02" (1/1) ... [2024-11-22 23:06:02,630 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:02" (1/1) ... [2024-11-22 23:06:02,631 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 23:06:02,632 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 23:06:02,632 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 23:06:02,632 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 23:06:02,633 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:02" (1/1) ... [2024-11-22 23:06:02,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 23:06:02,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:06:02,657 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 23:06:02,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 23:06:02,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 23:06:02,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 23:06:02,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 23:06:02,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 23:06:02,698 INFO L130 BoogieDeclarations]: Found specification of procedure id [2024-11-22 23:06:02,713 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2024-11-22 23:06:02,766 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 23:06:02,768 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 23:06:02,847 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-11-22 23:06:02,848 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 23:06:02,860 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 23:06:02,860 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-22 23:06:02,860 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:06:02 BoogieIcfgContainer [2024-11-22 23:06:02,861 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 23:06:02,862 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 23:06:02,862 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 23:06:02,868 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 23:06:02,868 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 11:06:02" (1/3) ... [2024-11-22 23:06:02,869 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@862c5cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:06:02, skipping insertion in model container [2024-11-22 23:06:02,869 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:02" (2/3) ... [2024-11-22 23:06:02,870 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@862c5cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:06:02, skipping insertion in model container [2024-11-22 23:06:02,870 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:06:02" (3/3) ... [2024-11-22 23:06:02,871 INFO L112 eAbstractionObserver]: Analyzing ICFG id_i25_o25-2.c [2024-11-22 23:06:02,887 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 23:06:02,887 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-22 23:06:02,932 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 23:06:02,937 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;@79d9fc0b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 23:06:02,938 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-22 23:06:02,942 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 16 states have (on average 1.375) internal successors, (22), 20 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-22 23:06:02,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-22 23:06:02,951 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:06:02,951 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-22 23:06:02,952 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-22 23:06:02,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:06:02,956 INFO L85 PathProgramCache]: Analyzing trace with hash 890350836, now seen corresponding path program 1 times [2024-11-22 23:06:02,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:06:02,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033954280] [2024-11-22 23:06:02,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:06:02,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:06:03,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:06:03,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:06:03,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:06:03,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033954280] [2024-11-22 23:06:03,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033954280] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 23:06:03,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 23:06:03,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 23:06:03,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092410936] [2024-11-22 23:06:03,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 23:06:03,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 23:06:03,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:06:03,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 23:06:03,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 23:06:03,150 INFO L87 Difference]: Start difference. First operand has 24 states, 16 states have (on average 1.375) internal successors, (22), 20 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 23:06:03,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:06:03,209 INFO L93 Difference]: Finished difference Result 46 states and 49 transitions. [2024-11-22 23:06:03,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 23:06:03,212 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-22 23:06:03,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:06:03,217 INFO L225 Difference]: With dead ends: 46 [2024-11-22 23:06:03,217 INFO L226 Difference]: Without dead ends: 28 [2024-11-22 23:06:03,219 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 23:06:03,222 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 22 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 23:06:03,223 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 67 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 23:06:03,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-11-22 23:06:03,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 25. [2024-11-22 23:06:03,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 17 states have (on average 1.411764705882353) internal successors, (24), 20 states have internal predecessors, (24), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-22 23:06:03,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2024-11-22 23:06:03,247 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 6 [2024-11-22 23:06:03,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:06:03,247 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2024-11-22 23:06:03,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 23:06:03,247 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2024-11-22 23:06:03,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-22 23:06:03,248 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:06:03,248 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-22 23:06:03,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 23:06:03,248 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-22 23:06:03,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:06:03,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1831072195, now seen corresponding path program 1 times [2024-11-22 23:06:03,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:06:03,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88253150] [2024-11-22 23:06:03,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:06:03,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:06:03,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:06:03,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:06:03,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:06:03,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88253150] [2024-11-22 23:06:03,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88253150] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 23:06:03,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 23:06:03,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 23:06:03,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227664314] [2024-11-22 23:06:03,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 23:06:03,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 23:06:03,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:06:03,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 23:06:03,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 23:06:03,316 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. Second operand has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 23:06:03,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:06:03,353 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2024-11-22 23:06:03,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 23:06:03,354 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-22 23:06:03,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:06:03,356 INFO L225 Difference]: With dead ends: 27 [2024-11-22 23:06:03,356 INFO L226 Difference]: Without dead ends: 26 [2024-11-22 23:06:03,357 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 23:06:03,359 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 19 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 23:06:03,359 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 26 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 23:06:03,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-22 23:06:03,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2024-11-22 23:06:03,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 19 states have internal predecessors, (22), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-22 23:06:03,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2024-11-22 23:06:03,365 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 7 [2024-11-22 23:06:03,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:06:03,365 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2024-11-22 23:06:03,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 23:06:03,366 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2024-11-22 23:06:03,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-22 23:06:03,366 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:06:03,366 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 23:06:03,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 23:06:03,367 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-22 23:06:03,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:06:03,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1922931507, now seen corresponding path program 1 times [2024-11-22 23:06:03,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:06:03,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140602064] [2024-11-22 23:06:03,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:06:03,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:06:03,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:06:03,467 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:06:03,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:06:03,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140602064] [2024-11-22 23:06:03,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140602064] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:06:03,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2093577765] [2024-11-22 23:06:03,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:06:03,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:06:03,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:06:03,471 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 23:06:03,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 23:06:03,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:06:03,500 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 23:06:03,503 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:06:03,545 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:06:03,546 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 23:06:03,604 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:06:03,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2093577765] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 23:06:03,605 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 23:06:03,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2024-11-22 23:06:03,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21552330] [2024-11-22 23:06:03,606 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 23:06:03,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-22 23:06:03,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:06:03,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-22 23:06:03,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-22 23:06:03,608 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 12 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 23:06:03,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:06:03,711 INFO L93 Difference]: Finished difference Result 76 states and 82 transitions. [2024-11-22 23:06:03,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-22 23:06:03,711 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-22 23:06:03,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:06:03,712 INFO L225 Difference]: With dead ends: 76 [2024-11-22 23:06:03,713 INFO L226 Difference]: Without dead ends: 68 [2024-11-22 23:06:03,713 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2024-11-22 23:06:03,714 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 99 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 23:06:03,714 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 95 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 23:06:03,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-11-22 23:06:03,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 54. [2024-11-22 23:06:03,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 41 states have (on average 1.3170731707317074) internal successors, (54), 43 states have internal predecessors, (54), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-22 23:06:03,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 65 transitions. [2024-11-22 23:06:03,729 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 65 transitions. Word has length 11 [2024-11-22 23:06:03,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:06:03,730 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 65 transitions. [2024-11-22 23:06:03,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 23:06:03,731 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 65 transitions. [2024-11-22 23:06:03,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-22 23:06:03,731 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:06:03,731 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 23:06:03,739 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 23:06:03,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:06:03,932 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-22 23:06:03,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:06:03,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1856245274, now seen corresponding path program 1 times [2024-11-22 23:06:03,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:06:03,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255860593] [2024-11-22 23:06:03,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:06:03,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:06:03,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:06:03,982 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-22 23:06:03,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:06:03,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255860593] [2024-11-22 23:06:03,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255860593] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 23:06:03,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 23:06:03,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 23:06:03,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741544984] [2024-11-22 23:06:03,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 23:06:03,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 23:06:03,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:06:03,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 23:06:03,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 23:06:03,985 INFO L87 Difference]: Start difference. First operand 54 states and 65 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 23:06:04,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:06:04,008 INFO L93 Difference]: Finished difference Result 74 states and 92 transitions. [2024-11-22 23:06:04,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 23:06:04,008 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2024-11-22 23:06:04,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:06:04,010 INFO L225 Difference]: With dead ends: 74 [2024-11-22 23:06:04,011 INFO L226 Difference]: Without dead ends: 72 [2024-11-22 23:06:04,011 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 23:06:04,012 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 1 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 23:06:04,014 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 39 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 23:06:04,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-11-22 23:06:04,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2024-11-22 23:06:04,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 56 states have (on average 1.2321428571428572) internal successors, (69), 57 states have internal predecessors, (69), 6 states have call successors, (6), 5 states have call predecessors, (6), 7 states have return successors, (9), 9 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-22 23:06:04,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 84 transitions. [2024-11-22 23:06:04,038 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 84 transitions. Word has length 19 [2024-11-22 23:06:04,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:06:04,038 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 84 transitions. [2024-11-22 23:06:04,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 23:06:04,038 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 84 transitions. [2024-11-22 23:06:04,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-22 23:06:04,039 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:06:04,039 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 23:06:04,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 23:06:04,039 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-22 23:06:04,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:06:04,040 INFO L85 PathProgramCache]: Analyzing trace with hash -614066819, now seen corresponding path program 1 times [2024-11-22 23:06:04,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:06:04,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326269049] [2024-11-22 23:06:04,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:06:04,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:06:04,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:06:04,079 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 23:06:04,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:06:04,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326269049] [2024-11-22 23:06:04,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326269049] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 23:06:04,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 23:06:04,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 23:06:04,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298014290] [2024-11-22 23:06:04,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 23:06:04,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 23:06:04,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:06:04,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 23:06:04,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 23:06:04,081 INFO L87 Difference]: Start difference. First operand 72 states and 84 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 23:06:04,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:06:04,093 INFO L93 Difference]: Finished difference Result 72 states and 84 transitions. [2024-11-22 23:06:04,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 23:06:04,093 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2024-11-22 23:06:04,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:06:04,094 INFO L225 Difference]: With dead ends: 72 [2024-11-22 23:06:04,094 INFO L226 Difference]: Without dead ends: 71 [2024-11-22 23:06:04,095 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 23:06:04,095 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 1 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 23:06:04,095 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 25 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 23:06:04,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-11-22 23:06:04,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2024-11-22 23:06:04,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 56 states have (on average 1.1428571428571428) internal successors, (64), 56 states have internal predecessors, (64), 6 states have call successors, (6), 5 states have call predecessors, (6), 7 states have return successors, (9), 9 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-22 23:06:04,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 79 transitions. [2024-11-22 23:06:04,103 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 79 transitions. Word has length 24 [2024-11-22 23:06:04,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:06:04,104 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 79 transitions. [2024-11-22 23:06:04,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 23:06:04,104 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 79 transitions. [2024-11-22 23:06:04,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-22 23:06:04,104 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:06:04,105 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 1, 1, 1, 1] [2024-11-22 23:06:04,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 23:06:04,105 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-22 23:06:04,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:06:04,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1990585420, now seen corresponding path program 2 times [2024-11-22 23:06:04,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:06:04,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830181987] [2024-11-22 23:06:04,106 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 23:06:04,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:06:04,119 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 23:06:04,120 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:06:04,266 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:06:04,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:06:04,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830181987] [2024-11-22 23:06:04,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830181987] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:06:04,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1190339042] [2024-11-22 23:06:04,267 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 23:06:04,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:06:04,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:06:04,271 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 23:06:04,272 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 23:06:04,300 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 23:06:04,300 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:06:04,302 INFO L255 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-22 23:06:04,303 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:06:04,349 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:06:04,350 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 23:06:04,516 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:06:04,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1190339042] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 23:06:04,517 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 23:06:04,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2024-11-22 23:06:04,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669166515] [2024-11-22 23:06:04,517 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 23:06:04,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-22 23:06:04,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:06:04,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-22 23:06:04,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2024-11-22 23:06:04,520 INFO L87 Difference]: Start difference. First operand 71 states and 79 transitions. Second operand has 24 states, 21 states have (on average 1.9523809523809523) internal successors, (41), 14 states have internal predecessors, (41), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 23:06:04,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:06:04,776 INFO L93 Difference]: Finished difference Result 188 states and 204 transitions. [2024-11-22 23:06:04,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-22 23:06:04,776 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 1.9523809523809523) internal successors, (41), 14 states have internal predecessors, (41), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2024-11-22 23:06:04,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:06:04,777 INFO L225 Difference]: With dead ends: 188 [2024-11-22 23:06:04,777 INFO L226 Difference]: Without dead ends: 156 [2024-11-22 23:06:04,778 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=311, Invalid=811, Unknown=0, NotChecked=0, Total=1122 [2024-11-22 23:06:04,779 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 247 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 23:06:04,779 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 223 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 23:06:04,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2024-11-22 23:06:04,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 146. [2024-11-22 23:06:04,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 116 states have (on average 1.146551724137931) internal successors, (133), 116 states have internal predecessors, (133), 12 states have call successors, (12), 11 states have call predecessors, (12), 16 states have return successors, (18), 18 states have call predecessors, (18), 11 states have call successors, (18) [2024-11-22 23:06:04,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 163 transitions. [2024-11-22 23:06:04,802 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 163 transitions. Word has length 26 [2024-11-22 23:06:04,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:06:04,802 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 163 transitions. [2024-11-22 23:06:04,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 1.9523809523809523) internal successors, (41), 14 states have internal predecessors, (41), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 23:06:04,803 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 163 transitions. [2024-11-22 23:06:04,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-22 23:06:04,804 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:06:04,804 INFO L215 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-22 23:06:04,810 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 23:06:05,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-22 23:06:05,008 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-22 23:06:05,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:06:05,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1350016289, now seen corresponding path program 1 times [2024-11-22 23:06:05,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:06:05,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956715476] [2024-11-22 23:06:05,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:06:05,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:06:05,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:06:05,078 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-22 23:06:05,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:06:05,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956715476] [2024-11-22 23:06:05,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956715476] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:06:05,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1744502991] [2024-11-22 23:06:05,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:06:05,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:06:05,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:06:05,080 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 23:06:05,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 23:06:05,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:06:05,111 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-22 23:06:05,112 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:06:05,256 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 3 proven. 60 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-22 23:06:05,256 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 23:06:05,576 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 3 proven. 61 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 23:06:05,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1744502991] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 23:06:05,576 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 23:06:05,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 14, 15] total 29 [2024-11-22 23:06:05,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229989629] [2024-11-22 23:06:05,578 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 23:06:05,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-22 23:06:05,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:06:05,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-22 23:06:05,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=676, Unknown=0, NotChecked=0, Total=812 [2024-11-22 23:06:05,580 INFO L87 Difference]: Start difference. First operand 146 states and 163 transitions. Second operand has 29 states, 27 states have (on average 2.5185185185185186) internal successors, (68), 21 states have internal predecessors, (68), 13 states have call successors, (14), 9 states have call predecessors, (14), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-22 23:06:05,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:06:05,926 INFO L93 Difference]: Finished difference Result 208 states and 227 transitions. [2024-11-22 23:06:05,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-22 23:06:05,927 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 27 states have (on average 2.5185185185185186) internal successors, (68), 21 states have internal predecessors, (68), 13 states have call successors, (14), 9 states have call predecessors, (14), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 40 [2024-11-22 23:06:05,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:06:05,928 INFO L225 Difference]: With dead ends: 208 [2024-11-22 23:06:05,928 INFO L226 Difference]: Without dead ends: 142 [2024-11-22 23:06:05,929 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 62 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=306, Invalid=1334, Unknown=0, NotChecked=0, Total=1640 [2024-11-22 23:06:05,930 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 164 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 23:06:05,930 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 462 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 23:06:05,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-11-22 23:06:05,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 134. [2024-11-22 23:06:05,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 107 states have (on average 1.1121495327102804) internal successors, (119), 106 states have internal predecessors, (119), 12 states have call successors, (12), 11 states have call predecessors, (12), 13 states have return successors, (16), 16 states have call predecessors, (16), 11 states have call successors, (16) [2024-11-22 23:06:05,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 147 transitions. [2024-11-22 23:06:05,949 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 147 transitions. Word has length 40 [2024-11-22 23:06:05,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:06:05,949 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 147 transitions. [2024-11-22 23:06:05,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 27 states have (on average 2.5185185185185186) internal successors, (68), 21 states have internal predecessors, (68), 13 states have call successors, (14), 9 states have call predecessors, (14), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-22 23:06:05,950 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 147 transitions. [2024-11-22 23:06:05,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-22 23:06:05,951 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:06:05,951 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 1, 1, 1, 1] [2024-11-22 23:06:05,959 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-22 23:06:06,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:06:06,152 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-22 23:06:06,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:06:06,153 INFO L85 PathProgramCache]: Analyzing trace with hash -91829804, now seen corresponding path program 3 times [2024-11-22 23:06:06,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:06:06,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120535993] [2024-11-22 23:06:06,153 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 23:06:06,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:06:06,169 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-22 23:06:06,170 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:06:06,508 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:06:06,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:06:06,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120535993] [2024-11-22 23:06:06,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120535993] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:06:06,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [239991079] [2024-11-22 23:06:06,509 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 23:06:06,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:06:06,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:06:06,512 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 23:06:06,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 23:06:06,545 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-22 23:06:06,545 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:06:06,546 INFO L255 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-22 23:06:06,548 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:06:06,607 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:06:06,608 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 23:06:07,058 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:06:07,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [239991079] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 23:06:07,059 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 23:06:07,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2024-11-22 23:06:07,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776868220] [2024-11-22 23:06:07,059 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 23:06:07,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-11-22 23:06:07,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:06:07,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-11-22 23:06:07,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=556, Invalid=1700, Unknown=0, NotChecked=0, Total=2256 [2024-11-22 23:06:07,062 INFO L87 Difference]: Start difference. First operand 134 states and 147 transitions. Second operand has 48 states, 45 states have (on average 1.9777777777777779) internal successors, (89), 26 states have internal predecessors, (89), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 23:06:07,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:06:07,681 INFO L93 Difference]: Finished difference Result 438 states and 470 transitions. [2024-11-22 23:06:07,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-11-22 23:06:07,682 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 45 states have (on average 1.9777777777777779) internal successors, (89), 26 states have internal predecessors, (89), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-11-22 23:06:07,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:06:07,684 INFO L225 Difference]: With dead ends: 438 [2024-11-22 23:06:07,684 INFO L226 Difference]: Without dead ends: 386 [2024-11-22 23:06:07,686 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 924 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1337, Invalid=3493, Unknown=0, NotChecked=0, Total=4830 [2024-11-22 23:06:07,688 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 789 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 23:06:07,688 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [790 Valid, 471 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 23:06:07,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2024-11-22 23:06:07,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 364. [2024-11-22 23:06:07,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 291 states have (on average 1.120274914089347) internal successors, (326), 290 states have internal predecessors, (326), 24 states have call successors, (24), 23 states have call predecessors, (24), 47 states have return successors, (50), 50 states have call predecessors, (50), 23 states have call successors, (50) [2024-11-22 23:06:07,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 400 transitions. [2024-11-22 23:06:07,707 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 400 transitions. Word has length 56 [2024-11-22 23:06:07,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:06:07,707 INFO L471 AbstractCegarLoop]: Abstraction has 364 states and 400 transitions. [2024-11-22 23:06:07,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 45 states have (on average 1.9777777777777779) internal successors, (89), 26 states have internal predecessors, (89), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 23:06:07,708 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 400 transitions. [2024-11-22 23:06:07,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-22 23:06:07,709 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:06:07,709 INFO L215 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1] [2024-11-22 23:06:07,716 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-22 23:06:07,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:06:07,913 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-22 23:06:07,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:06:07,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1351701622, now seen corresponding path program 2 times [2024-11-22 23:06:07,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:06:07,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663085867] [2024-11-22 23:06:07,913 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 23:06:07,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:06:07,929 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 23:06:07,929 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:06:08,267 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 6 proven. 299 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-22 23:06:08,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:06:08,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663085867] [2024-11-22 23:06:08,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663085867] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:06:08,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1166514881] [2024-11-22 23:06:08,268 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 23:06:08,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:06:08,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:06:08,270 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 23:06:08,271 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-22 23:06:08,301 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 23:06:08,301 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:06:08,302 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-22 23:06:08,305 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:06:08,408 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 6 proven. 297 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-22 23:06:08,408 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 23:06:08,986 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 6 proven. 303 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 23:06:08,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1166514881] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 23:06:08,987 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 23:06:08,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 25, 27] total 49 [2024-11-22 23:06:08,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331500853] [2024-11-22 23:06:08,987 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 23:06:08,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2024-11-22 23:06:08,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:06:08,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2024-11-22 23:06:08,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=478, Invalid=1874, Unknown=0, NotChecked=0, Total=2352 [2024-11-22 23:06:08,989 INFO L87 Difference]: Start difference. First operand 364 states and 400 transitions. Second operand has 49 states, 47 states have (on average 2.234042553191489) internal successors, (105), 31 states have internal predecessors, (105), 23 states have call successors, (23), 19 states have call predecessors, (23), 4 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) [2024-11-22 23:06:09,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:06:09,517 INFO L93 Difference]: Finished difference Result 481 states and 516 transitions. [2024-11-22 23:06:09,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-11-22 23:06:09,518 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 47 states have (on average 2.234042553191489) internal successors, (105), 31 states have internal predecessors, (105), 23 states have call successors, (23), 19 states have call predecessors, (23), 4 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) Word has length 75 [2024-11-22 23:06:09,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:06:09,520 INFO L225 Difference]: With dead ends: 481 [2024-11-22 23:06:09,520 INFO L226 Difference]: Without dead ends: 290 [2024-11-22 23:06:09,522 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 125 SyntacticMatches, 3 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1114 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1144, Invalid=3686, Unknown=0, NotChecked=0, Total=4830 [2024-11-22 23:06:09,522 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 492 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 23:06:09,523 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [492 Valid, 739 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 23:06:09,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2024-11-22 23:06:09,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 264. [2024-11-22 23:06:09,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 211 states have (on average 1.1184834123222749) internal successors, (236), 210 states have internal predecessors, (236), 24 states have call successors, (24), 23 states have call predecessors, (24), 27 states have return successors, (30), 30 states have call predecessors, (30), 23 states have call successors, (30) [2024-11-22 23:06:09,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 290 transitions. [2024-11-22 23:06:09,534 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 290 transitions. Word has length 75 [2024-11-22 23:06:09,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:06:09,535 INFO L471 AbstractCegarLoop]: Abstraction has 264 states and 290 transitions. [2024-11-22 23:06:09,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 47 states have (on average 2.234042553191489) internal successors, (105), 31 states have internal predecessors, (105), 23 states have call successors, (23), 19 states have call predecessors, (23), 4 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) [2024-11-22 23:06:09,535 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 290 transitions. [2024-11-22 23:06:09,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-22 23:06:09,537 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:06:09,537 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 1, 1, 1, 1] [2024-11-22 23:06:09,543 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-22 23:06:09,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:06:09,738 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-22 23:06:09,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:06:09,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1473917420, now seen corresponding path program 4 times [2024-11-22 23:06:09,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:06:09,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83835859] [2024-11-22 23:06:09,739 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-22 23:06:09,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:06:09,763 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-22 23:06:09,764 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:06:10,689 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:06:10,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:06:10,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83835859] [2024-11-22 23:06:10,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83835859] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:06:10,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [971393114] [2024-11-22 23:06:10,690 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-22 23:06:10,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:06:10,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:06:10,691 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 23:06:10,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-22 23:06:10,731 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-22 23:06:10,731 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:06:10,732 INFO L255 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-22 23:06:10,735 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:06:10,910 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:06:10,910 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 23:06:12,330 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:06:12,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [971393114] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 23:06:12,331 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 23:06:12,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 98 [2024-11-22 23:06:12,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398608279] [2024-11-22 23:06:12,331 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 23:06:12,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 99 states [2024-11-22 23:06:12,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:06:12,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2024-11-22 23:06:12,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2360, Invalid=7342, Unknown=0, NotChecked=0, Total=9702 [2024-11-22 23:06:12,335 INFO L87 Difference]: Start difference. First operand 264 states and 290 transitions. Second operand has 99 states, 95 states have (on average 2.0) internal successors, (190), 52 states have internal predecessors, (190), 48 states have call successors, (48), 47 states have call predecessors, (48), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 23:06:13,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:06:13,996 INFO L93 Difference]: Finished difference Result 892 states and 961 transitions. [2024-11-22 23:06:13,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2024-11-22 23:06:13,997 INFO L78 Accepts]: Start accepts. Automaton has has 99 states, 95 states have (on average 2.0) internal successors, (190), 52 states have internal predecessors, (190), 48 states have call successors, (48), 47 states have call predecessors, (48), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2024-11-22 23:06:13,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:06:14,000 INFO L225 Difference]: With dead ends: 892 [2024-11-22 23:06:14,000 INFO L226 Difference]: Without dead ends: 770 [2024-11-22 23:06:14,004 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4638 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=5651, Invalid=15229, Unknown=0, NotChecked=0, Total=20880 [2024-11-22 23:06:14,004 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 1937 mSDsluCounter, 1191 mSDsCounter, 0 mSdLazyCounter, 777 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1938 SdHoareTripleChecker+Valid, 1308 SdHoareTripleChecker+Invalid, 984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 23:06:14,004 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1938 Valid, 1308 Invalid, 984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [207 Valid, 777 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 23:06:14,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2024-11-22 23:06:14,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 724. [2024-11-22 23:06:14,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724 states, 579 states have (on average 1.1226252158894645) internal successors, (650), 578 states have internal predecessors, (650), 48 states have call successors, (48), 47 states have call predecessors, (48), 95 states have return successors, (98), 98 states have call predecessors, (98), 47 states have call successors, (98) [2024-11-22 23:06:14,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 796 transitions. [2024-11-22 23:06:14,043 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 796 transitions. Word has length 116 [2024-11-22 23:06:14,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:06:14,043 INFO L471 AbstractCegarLoop]: Abstraction has 724 states and 796 transitions. [2024-11-22 23:06:14,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 99 states, 95 states have (on average 2.0) internal successors, (190), 52 states have internal predecessors, (190), 48 states have call successors, (48), 47 states have call predecessors, (48), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 23:06:14,043 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 796 transitions. [2024-11-22 23:06:14,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-22 23:06:14,045 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:06:14,045 INFO L215 NwaCegarLoop]: trace histogram [24, 23, 23, 23, 23, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1] [2024-11-22 23:06:14,051 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-22 23:06:14,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:06:14,249 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-22 23:06:14,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:06:14,249 INFO L85 PathProgramCache]: Analyzing trace with hash 409036854, now seen corresponding path program 3 times [2024-11-22 23:06:14,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:06:14,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727591898] [2024-11-22 23:06:14,250 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 23:06:14,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:06:14,257 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-22 23:06:14,260 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:06:14,342 INFO L134 CoverageAnalysis]: Checked inductivity of 1326 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 1311 trivial. 0 not checked. [2024-11-22 23:06:14,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:06:14,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727591898] [2024-11-22 23:06:14,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727591898] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:06:14,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196214683] [2024-11-22 23:06:14,343 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 23:06:14,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:06:14,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:06:14,345 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 23:06:14,345 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-22 23:06:14,380 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-22 23:06:14,380 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:06:14,381 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-22 23:06:14,383 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:06:14,413 INFO L134 CoverageAnalysis]: Checked inductivity of 1326 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 1311 trivial. 0 not checked. [2024-11-22 23:06:14,413 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 23:06:14,536 INFO L134 CoverageAnalysis]: Checked inductivity of 1326 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 1311 trivial. 0 not checked. [2024-11-22 23:06:14,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [196214683] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 23:06:14,536 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 23:06:14,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2024-11-22 23:06:14,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246992309] [2024-11-22 23:06:14,536 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 23:06:14,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-22 23:06:14,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:06:14,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-22 23:06:14,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2024-11-22 23:06:14,538 INFO L87 Difference]: Start difference. First operand 724 states and 796 transitions. Second operand has 16 states, 15 states have (on average 2.466666666666667) internal successors, (37), 16 states have internal predecessors, (37), 1 states have call successors, (2), 1 states have call predecessors, (2), 7 states have return successors, (7), 7 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-22 23:06:14,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:06:14,608 INFO L93 Difference]: Finished difference Result 1287 states and 1476 transitions. [2024-11-22 23:06:14,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-22 23:06:14,609 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.466666666666667) internal successors, (37), 16 states have internal predecessors, (37), 1 states have call successors, (2), 1 states have call predecessors, (2), 7 states have return successors, (7), 7 states have call predecessors, (7), 1 states have call successors, (7) Word has length 135 [2024-11-22 23:06:14,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:06:14,613 INFO L225 Difference]: With dead ends: 1287 [2024-11-22 23:06:14,613 INFO L226 Difference]: Without dead ends: 1286 [2024-11-22 23:06:14,614 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2024-11-22 23:06:14,614 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 23:06:14,615 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 98 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 23:06:14,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1286 states. [2024-11-22 23:06:14,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1286 to 1286. [2024-11-22 23:06:14,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1286 states, 1031 states have (on average 1.0688651794374393) internal successors, (1102), 1026 states have internal predecessors, (1102), 48 states have call successors, (48), 47 states have call predecessors, (48), 205 states have return successors, (212), 212 states have call predecessors, (212), 47 states have call successors, (212) [2024-11-22 23:06:14,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 1362 transitions. [2024-11-22 23:06:14,658 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 1362 transitions. Word has length 135 [2024-11-22 23:06:14,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:06:14,659 INFO L471 AbstractCegarLoop]: Abstraction has 1286 states and 1362 transitions. [2024-11-22 23:06:14,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.466666666666667) internal successors, (37), 16 states have internal predecessors, (37), 1 states have call successors, (2), 1 states have call predecessors, (2), 7 states have return successors, (7), 7 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-22 23:06:14,659 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 1362 transitions. [2024-11-22 23:06:14,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-22 23:06:14,660 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:06:14,661 INFO L215 NwaCegarLoop]: trace histogram [24, 23, 23, 23, 23, 7, 7, 7, 7, 6, 1, 1, 1, 1, 1] [2024-11-22 23:06:14,667 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-22 23:06:14,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:06:14,861 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-22 23:06:14,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:06:14,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1617795594, now seen corresponding path program 4 times [2024-11-22 23:06:14,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:06:14,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732494048] [2024-11-22 23:06:14,862 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-22 23:06:14,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:06:14,875 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-22 23:06:14,876 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:06:15,109 INFO L134 CoverageAnalysis]: Checked inductivity of 1416 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 1311 trivial. 0 not checked. [2024-11-22 23:06:15,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:06:15,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732494048] [2024-11-22 23:06:15,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732494048] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:06:15,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [450306501] [2024-11-22 23:06:15,110 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-22 23:06:15,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:06:15,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:06:15,112 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 23:06:15,113 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-22 23:06:15,159 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-22 23:06:15,159 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:06:15,160 INFO L255 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-22 23:06:15,163 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:06:15,904 INFO L134 CoverageAnalysis]: Checked inductivity of 1416 backedges. 18 proven. 1311 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2024-11-22 23:06:15,905 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 23:06:17,783 INFO L134 CoverageAnalysis]: Checked inductivity of 1416 backedges. 18 proven. 1377 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-22 23:06:17,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [450306501] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 23:06:17,783 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 23:06:17,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 45, 51] total 69 [2024-11-22 23:06:17,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229242603] [2024-11-22 23:06:17,784 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 23:06:17,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2024-11-22 23:06:17,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:06:17,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2024-11-22 23:06:17,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=666, Invalid=4026, Unknown=0, NotChecked=0, Total=4692 [2024-11-22 23:06:17,787 INFO L87 Difference]: Start difference. First operand 1286 states and 1362 transitions. Second operand has 69 states, 67 states have (on average 2.5074626865671643) internal successors, (168), 51 states have internal predecessors, (168), 28 states have call successors, (30), 19 states have call predecessors, (30), 14 states have return successors, (21), 14 states have call predecessors, (21), 10 states have call successors, (21) [2024-11-22 23:06:18,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:06:18,894 INFO L93 Difference]: Finished difference Result 1538 states and 1642 transitions. [2024-11-22 23:06:18,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2024-11-22 23:06:18,895 INFO L78 Accepts]: Start accepts. Automaton has has 69 states, 67 states have (on average 2.5074626865671643) internal successors, (168), 51 states have internal predecessors, (168), 28 states have call successors, (30), 19 states have call predecessors, (30), 14 states have return successors, (21), 14 states have call predecessors, (21), 10 states have call successors, (21) Word has length 155 [2024-11-22 23:06:18,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:06:18,898 INFO L225 Difference]: With dead ends: 1538 [2024-11-22 23:06:18,898 INFO L226 Difference]: Without dead ends: 1387 [2024-11-22 23:06:18,900 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 235 SyntacticMatches, 39 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3729 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1621, Invalid=8479, Unknown=0, NotChecked=0, Total=10100 [2024-11-22 23:06:18,901 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 488 mSDsluCounter, 1186 mSDsCounter, 0 mSdLazyCounter, 804 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 1280 SdHoareTripleChecker+Invalid, 870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 23:06:18,902 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 1280 Invalid, 870 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 804 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 23:06:18,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1387 states. [2024-11-22 23:06:18,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1387 to 1369. [2024-11-22 23:06:18,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1369 states, 1098 states have (on average 1.0628415300546448) internal successors, (1167), 1092 states have internal predecessors, (1167), 48 states have call successors, (48), 47 states have call predecessors, (48), 221 states have return successors, (229), 229 states have call predecessors, (229), 47 states have call successors, (229) [2024-11-22 23:06:18,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1369 states to 1369 states and 1444 transitions. [2024-11-22 23:06:18,948 INFO L78 Accepts]: Start accepts. Automaton has 1369 states and 1444 transitions. Word has length 155 [2024-11-22 23:06:18,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:06:18,948 INFO L471 AbstractCegarLoop]: Abstraction has 1369 states and 1444 transitions. [2024-11-22 23:06:18,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 69 states, 67 states have (on average 2.5074626865671643) internal successors, (168), 51 states have internal predecessors, (168), 28 states have call successors, (30), 19 states have call predecessors, (30), 14 states have return successors, (21), 14 states have call predecessors, (21), 10 states have call successors, (21) [2024-11-22 23:06:18,949 INFO L276 IsEmpty]: Start isEmpty. Operand 1369 states and 1444 transitions. [2024-11-22 23:06:18,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-22 23:06:18,950 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:06:18,950 INFO L215 NwaCegarLoop]: trace histogram [26, 25, 25, 25, 25, 8, 8, 8, 8, 7, 1, 1, 1, 1, 1] [2024-11-22 23:06:18,958 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-22 23:06:19,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-22 23:06:19,155 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-22 23:06:19,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:06:19,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1572402623, now seen corresponding path program 5 times [2024-11-22 23:06:19,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:06:19,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27723476] [2024-11-22 23:06:19,156 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-22 23:06:19,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:06:19,198 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 26 check-sat command(s) [2024-11-22 23:06:19,198 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:06:19,425 INFO L134 CoverageAnalysis]: Checked inductivity of 1690 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 1550 trivial. 0 not checked. [2024-11-22 23:06:19,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:06:19,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27723476] [2024-11-22 23:06:19,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27723476] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:06:19,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [288689890] [2024-11-22 23:06:19,426 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-22 23:06:19,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:06:19,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:06:19,428 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 23:06:19,429 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-22 23:06:19,509 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 26 check-sat command(s) [2024-11-22 23:06:19,509 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:06:19,510 INFO L255 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-22 23:06:19,512 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:06:19,550 INFO L134 CoverageAnalysis]: Checked inductivity of 1690 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 1550 trivial. 0 not checked. [2024-11-22 23:06:19,551 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 23:06:20,993 INFO L134 CoverageAnalysis]: Checked inductivity of 1690 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 1550 trivial. 0 not checked. [2024-11-22 23:06:20,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [288689890] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 23:06:20,993 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 23:06:20,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 33 [2024-11-22 23:06:20,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831098452] [2024-11-22 23:06:20,994 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 23:06:20,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-22 23:06:20,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:06:20,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-22 23:06:20,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=305, Invalid=817, Unknown=0, NotChecked=0, Total=1122 [2024-11-22 23:06:20,995 INFO L87 Difference]: Start difference. First operand 1369 states and 1444 transitions. Second operand has 34 states, 33 states have (on average 2.1818181818181817) internal successors, (72), 34 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 16 states have return successors, (16), 16 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-22 23:06:21,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:06:21,139 INFO L93 Difference]: Finished difference Result 2882 states and 3271 transitions. [2024-11-22 23:06:21,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-22 23:06:21,140 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 2.1818181818181817) internal successors, (72), 34 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 16 states have return successors, (16), 16 states have call predecessors, (16), 1 states have call successors, (16) Word has length 170 [2024-11-22 23:06:21,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:06:21,147 INFO L225 Difference]: With dead ends: 2882 [2024-11-22 23:06:21,148 INFO L226 Difference]: Without dead ends: 2881 [2024-11-22 23:06:21,149 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 323 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=305, Invalid=817, Unknown=0, NotChecked=0, Total=1122 [2024-11-22 23:06:21,149 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 23:06:21,151 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 85 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 23:06:21,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2881 states. [2024-11-22 23:06:21,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2881 to 2881. [2024-11-22 23:06:21,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2881 states, 2313 states have (on average 1.0298313878080414) internal successors, (2382), 2298 states have internal predecessors, (2382), 48 states have call successors, (48), 47 states have call predecessors, (48), 518 states have return successors, (535), 535 states have call predecessors, (535), 47 states have call successors, (535) [2024-11-22 23:06:21,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2881 states to 2881 states and 2965 transitions. [2024-11-22 23:06:21,247 INFO L78 Accepts]: Start accepts. Automaton has 2881 states and 2965 transitions. Word has length 170 [2024-11-22 23:06:21,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:06:21,247 INFO L471 AbstractCegarLoop]: Abstraction has 2881 states and 2965 transitions. [2024-11-22 23:06:21,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 2.1818181818181817) internal successors, (72), 34 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 16 states have return successors, (16), 16 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-22 23:06:21,248 INFO L276 IsEmpty]: Start isEmpty. Operand 2881 states and 2965 transitions. [2024-11-22 23:06:21,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-11-22 23:06:21,251 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:06:21,251 INFO L215 NwaCegarLoop]: trace histogram [26, 25, 25, 25, 25, 17, 17, 17, 17, 16, 1, 1, 1, 1, 1] [2024-11-22 23:06:21,258 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-22 23:06:21,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-22 23:06:21,456 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-22 23:06:21,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:06:21,456 INFO L85 PathProgramCache]: Analyzing trace with hash -882499338, now seen corresponding path program 6 times [2024-11-22 23:06:21,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:06:21,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283911181] [2024-11-22 23:06:21,456 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-22 23:06:21,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:06:21,498 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 26 check-sat command(s) [2024-11-22 23:06:21,499 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:06:22,087 INFO L134 CoverageAnalysis]: Checked inductivity of 2230 backedges. 0 proven. 680 refuted. 0 times theorem prover too weak. 1550 trivial. 0 not checked. [2024-11-22 23:06:22,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:06:22,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283911181] [2024-11-22 23:06:22,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283911181] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:06:22,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1478431961] [2024-11-22 23:06:22,088 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-22 23:06:22,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:06:22,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:06:22,093 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 23:06:22,094 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-22 23:06:22,183 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 26 check-sat command(s) [2024-11-22 23:06:22,183 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:06:22,185 INFO L255 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-22 23:06:22,187 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:06:22,280 INFO L134 CoverageAnalysis]: Checked inductivity of 2230 backedges. 0 proven. 680 refuted. 0 times theorem prover too weak. 1550 trivial. 0 not checked. [2024-11-22 23:06:22,280 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 23:06:35,172 INFO L134 CoverageAnalysis]: Checked inductivity of 2230 backedges. 0 proven. 680 refuted. 0 times theorem prover too weak. 1550 trivial. 0 not checked. [2024-11-22 23:06:35,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1478431961] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 23:06:35,172 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 23:06:35,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35, 35] total 71 [2024-11-22 23:06:35,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958347624] [2024-11-22 23:06:35,173 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 23:06:35,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2024-11-22 23:06:35,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:06:35,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2024-11-22 23:06:35,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1331, Invalid=3781, Unknown=0, NotChecked=0, Total=5112 [2024-11-22 23:06:35,175 INFO L87 Difference]: Start difference. First operand 2881 states and 2965 transitions. Second operand has 72 states, 71 states have (on average 2.0985915492957745) internal successors, (149), 72 states have internal predecessors, (149), 1 states have call successors, (2), 1 states have call predecessors, (2), 35 states have return successors, (35), 35 states have call predecessors, (35), 1 states have call successors, (35) [2024-11-22 23:06:35,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:06:35,533 INFO L93 Difference]: Finished difference Result 6896 states and 7797 transitions. [2024-11-22 23:06:35,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2024-11-22 23:06:35,534 INFO L78 Accepts]: Start accepts. Automaton has has 72 states, 71 states have (on average 2.0985915492957745) internal successors, (149), 72 states have internal predecessors, (149), 1 states have call successors, (2), 1 states have call predecessors, (2), 35 states have return successors, (35), 35 states have call predecessors, (35), 1 states have call successors, (35) Word has length 215 [2024-11-22 23:06:35,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:06:35,549 INFO L225 Difference]: With dead ends: 6896 [2024-11-22 23:06:35,549 INFO L226 Difference]: Without dead ends: 5420 [2024-11-22 23:06:35,553 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 463 GetRequests, 393 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1575 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1331, Invalid=3781, Unknown=0, NotChecked=0, Total=5112 [2024-11-22 23:06:35,553 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 23:06:35,554 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 148 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 23:06:35,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5420 states. [2024-11-22 23:06:35,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5420 to 5420. [2024-11-22 23:06:35,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5420 states, 4355 states have (on average 1.0135476463834672) internal successors, (4414), 4322 states have internal predecessors, (4414), 48 states have call successors, (48), 47 states have call predecessors, (48), 1015 states have return successors, (1050), 1050 states have call predecessors, (1050), 47 states have call successors, (1050) [2024-11-22 23:06:35,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5420 states to 5420 states and 5512 transitions. [2024-11-22 23:06:35,764 INFO L78 Accepts]: Start accepts. Automaton has 5420 states and 5512 transitions. Word has length 215 [2024-11-22 23:06:35,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:06:35,765 INFO L471 AbstractCegarLoop]: Abstraction has 5420 states and 5512 transitions. [2024-11-22 23:06:35,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 72 states, 71 states have (on average 2.0985915492957745) internal successors, (149), 72 states have internal predecessors, (149), 1 states have call successors, (2), 1 states have call predecessors, (2), 35 states have return successors, (35), 35 states have call predecessors, (35), 1 states have call successors, (35) [2024-11-22 23:06:35,765 INFO L276 IsEmpty]: Start isEmpty. Operand 5420 states and 5512 transitions. [2024-11-22 23:06:35,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2024-11-22 23:06:35,767 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:06:35,767 INFO L215 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 1, 1, 1, 1] [2024-11-22 23:06:35,775 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-22 23:06:35,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-22 23:06:35,968 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-22 23:06:35,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:06:35,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1766705516, now seen corresponding path program 5 times [2024-11-22 23:06:35,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:06:35,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875489505] [2024-11-22 23:06:35,969 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-22 23:06:35,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:06:36,063 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2024-11-22 23:06:36,064 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:06:39,114 INFO L134 CoverageAnalysis]: Checked inductivity of 5313 backedges. 0 proven. 5313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:06:39,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:06:39,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875489505] [2024-11-22 23:06:39,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875489505] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:06:39,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1670613907] [2024-11-22 23:06:39,115 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-22 23:06:39,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:06:39,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:06:39,116 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 23:06:39,117 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-22 23:06:39,426 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2024-11-22 23:06:39,426 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:06:39,429 INFO L255 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 96 conjuncts are in the unsatisfiable core [2024-11-22 23:06:39,432 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:06:39,632 INFO L134 CoverageAnalysis]: Checked inductivity of 5313 backedges. 0 proven. 5313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:06:39,632 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 23:06:44,627 INFO L134 CoverageAnalysis]: Checked inductivity of 5313 backedges. 0 proven. 5313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:06:44,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1670613907] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 23:06:44,628 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 23:06:44,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2024-11-22 23:06:44,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620242641] [2024-11-22 23:06:44,628 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 23:06:44,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2024-11-22 23:06:44,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:06:44,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2024-11-22 23:06:44,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9124, Invalid=27548, Unknown=0, NotChecked=0, Total=36672 [2024-11-22 23:06:44,635 INFO L87 Difference]: Start difference. First operand 5420 states and 5512 transitions. Second operand has 192 states, 189 states have (on average 1.9947089947089947) internal successors, (377), 98 states have internal predecessors, (377), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 23:06:46,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:06:46,011 INFO L93 Difference]: Finished difference Result 5445 states and 5512 transitions. [2024-11-22 23:06:46,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2024-11-22 23:06:46,012 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 189 states have (on average 1.9947089947089947) internal successors, (377), 98 states have internal predecessors, (377), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 236 [2024-11-22 23:06:46,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:06:46,026 INFO L225 Difference]: With dead ends: 5445 [2024-11-22 23:06:46,027 INFO L226 Difference]: Without dead ends: 5444 [2024-11-22 23:06:46,030 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 593 GetRequests, 376 SyntacticMatches, 0 SemanticMatches, 217 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11393 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=13906, Invalid=33836, Unknown=0, NotChecked=0, Total=47742 [2024-11-22 23:06:46,030 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 827 mSDsluCounter, 741 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 827 SdHoareTripleChecker+Valid, 849 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 23:06:46,030 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [827 Valid, 849 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 23:06:46,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5444 states. [2024-11-22 23:06:46,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5444 to 5419. [2024-11-22 23:06:46,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5419 states, 4355 states have (on average 1.0133180252583238) internal successors, (4413), 4321 states have internal predecessors, (4413), 48 states have call successors, (48), 47 states have call predecessors, (48), 1015 states have return successors, (1050), 1050 states have call predecessors, (1050), 47 states have call successors, (1050) [2024-11-22 23:06:46,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5419 states to 5419 states and 5511 transitions. [2024-11-22 23:06:46,212 INFO L78 Accepts]: Start accepts. Automaton has 5419 states and 5511 transitions. Word has length 236 [2024-11-22 23:06:46,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:06:46,213 INFO L471 AbstractCegarLoop]: Abstraction has 5419 states and 5511 transitions. [2024-11-22 23:06:46,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 189 states have (on average 1.9947089947089947) internal successors, (377), 98 states have internal predecessors, (377), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 23:06:46,213 INFO L276 IsEmpty]: Start isEmpty. Operand 5419 states and 5511 transitions. [2024-11-22 23:06:46,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2024-11-22 23:06:46,222 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:06:46,222 INFO L215 NwaCegarLoop]: trace histogram [36, 35, 35, 35, 35, 35, 35, 35, 35, 34, 1, 1, 1, 1, 1] [2024-11-22 23:06:46,230 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-22 23:06:46,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-22 23:06:46,427 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-22 23:06:46,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:06:46,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1765132790, now seen corresponding path program 7 times [2024-11-22 23:06:46,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:06:46,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775824247] [2024-11-22 23:06:46,427 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-22 23:06:46,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:06:46,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:06:48,390 INFO L134 CoverageAnalysis]: Checked inductivity of 6020 backedges. 0 proven. 2975 refuted. 0 times theorem prover too weak. 3045 trivial. 0 not checked. [2024-11-22 23:06:48,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:06:48,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775824247] [2024-11-22 23:06:48,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775824247] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:06:48,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [111449882] [2024-11-22 23:06:48,391 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-22 23:06:48,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:06:48,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:06:48,392 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 23:06:48,393 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-22 23:06:48,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:06:48,650 INFO L255 TraceCheckSpWp]: Trace formula consists of 661 conjuncts, 74 conjuncts are in the unsatisfiable core [2024-11-22 23:06:48,654 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:06:49,980 INFO L134 CoverageAnalysis]: Checked inductivity of 6020 backedges. 2975 proven. 172 refuted. 0 times theorem prover too weak. 2873 trivial. 0 not checked. [2024-11-22 23:06:49,980 INFO L311 TraceCheckSpWp]: Computing backward predicates...