./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench/dijkstra.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench/dijkstra.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 8c2c25cf461f08df93633b3a41b472f1ef6c33d9d6e519054ad0fbe6ddfed0fc --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 18:22:38,860 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 18:22:38,950 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-20 18:22:38,955 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 18:22:38,958 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 18:22:38,997 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 18:22:38,999 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 18:22:39,000 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 18:22:39,001 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 18:22:39,001 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 18:22:39,002 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 18:22:39,002 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 18:22:39,003 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 18:22:39,005 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 18:22:39,005 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 18:22:39,005 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 18:22:39,006 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 18:22:39,006 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 18:22:39,010 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 18:22:39,010 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 18:22:39,010 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 18:22:39,011 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 18:22:39,011 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 18:22:39,012 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 18:22:39,012 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 18:22:39,012 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-20 18:22:39,012 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 18:22:39,013 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 18:22:39,013 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 18:22:39,013 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 18:22:39,014 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 18:22:39,014 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 18:22:39,014 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 18:22:39,014 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 18:22:39,014 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 18:22:39,015 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 18:22:39,015 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 18:22:39,015 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 18:22:39,016 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 18:22:39,016 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 18:22:39,016 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 18:22:39,017 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 18:22:39,018 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 18:22:39,018 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 18:22:39,019 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c2c25cf461f08df93633b3a41b472f1ef6c33d9d6e519054ad0fbe6ddfed0fc [2024-11-20 18:22:39,271 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 18:22:39,301 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 18:22:39,304 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 18:22:39,305 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 18:22:39,306 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 18:22:39,307 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench/dijkstra.c [2024-11-20 18:22:40,721 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 18:22:40,899 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 18:22:40,899 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench/dijkstra.c [2024-11-20 18:22:40,908 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/673c65f3d/4326540182f846f294c630a66a628ede/FLAGabf52ddeb [2024-11-20 18:22:41,299 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/673c65f3d/4326540182f846f294c630a66a628ede [2024-11-20 18:22:41,302 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 18:22:41,303 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 18:22:41,304 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 18:22:41,304 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 18:22:41,309 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 18:22:41,309 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:22:41" (1/1) ... [2024-11-20 18:22:41,310 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@457aee3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:22:41, skipping insertion in model container [2024-11-20 18:22:41,310 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:22:41" (1/1) ... [2024-11-20 18:22:41,330 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 18:22:41,534 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 18:22:41,543 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 18:22:41,578 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 18:22:41,597 INFO L204 MainTranslator]: Completed translation [2024-11-20 18:22:41,597 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:22:41 WrapperNode [2024-11-20 18:22:41,598 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 18:22:41,599 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 18:22:41,599 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 18:22:41,599 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 18:22:41,606 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:22:41" (1/1) ... [2024-11-20 18:22:41,614 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:22:41" (1/1) ... [2024-11-20 18:22:41,661 INFO L138 Inliner]: procedures = 14, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 316 [2024-11-20 18:22:41,662 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 18:22:41,662 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 18:22:41,662 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 18:22:41,663 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 18:22:41,678 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:22:41" (1/1) ... [2024-11-20 18:22:41,678 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:22:41" (1/1) ... [2024-11-20 18:22:41,681 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:22:41" (1/1) ... [2024-11-20 18:22:41,698 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]. [2024-11-20 18:22:41,698 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:22:41" (1/1) ... [2024-11-20 18:22:41,699 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:22:41" (1/1) ... [2024-11-20 18:22:41,708 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:22:41" (1/1) ... [2024-11-20 18:22:41,711 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:22:41" (1/1) ... [2024-11-20 18:22:41,715 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:22:41" (1/1) ... [2024-11-20 18:22:41,717 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:22:41" (1/1) ... [2024-11-20 18:22:41,722 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 18:22:41,723 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 18:22:41,723 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 18:22:41,724 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 18:22:41,724 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:22:41" (1/1) ... [2024-11-20 18:22:41,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 18:22:41,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 18:22:41,769 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) [2024-11-20 18:22:41,774 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 [2024-11-20 18:22:41,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 18:22:41,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 18:22:41,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 18:22:41,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 18:22:41,820 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-20 18:22:41,820 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-20 18:22:41,869 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 18:22:41,871 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 18:22:43,278 INFO L? ?]: Removed 585 outVars from TransFormulas that were not future-live. [2024-11-20 18:22:43,279 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 18:22:43,312 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 18:22:43,312 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-20 18:22:43,313 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:22:43 BoogieIcfgContainer [2024-11-20 18:22:43,313 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 18:22:43,315 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 18:22:43,315 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 18:22:43,319 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 18:22:43,319 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:22:41" (1/3) ... [2024-11-20 18:22:43,320 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d42f445 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:22:43, skipping insertion in model container [2024-11-20 18:22:43,320 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:22:41" (2/3) ... [2024-11-20 18:22:43,320 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d42f445 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:22:43, skipping insertion in model container [2024-11-20 18:22:43,321 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:22:43" (3/3) ... [2024-11-20 18:22:43,322 INFO L112 eAbstractionObserver]: Analyzing ICFG dijkstra.c [2024-11-20 18:22:43,342 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 18:22:43,342 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 258 error locations. [2024-11-20 18:22:43,418 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 18:22:43,424 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;@4bf1a33d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 18:22:43,424 INFO L334 AbstractCegarLoop]: Starting to check reachability of 258 error locations. [2024-11-20 18:22:43,429 INFO L276 IsEmpty]: Start isEmpty. Operand has 542 states, 273 states have (on average 1.9743589743589745) internal successors, (539), 531 states have internal predecessors, (539), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-20 18:22:43,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-20 18:22:43,438 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:22:43,439 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-20 18:22:43,440 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr188ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 255 more)] === [2024-11-20 18:22:43,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:22:43,446 INFO L85 PathProgramCache]: Analyzing trace with hash 28723381, now seen corresponding path program 1 times [2024-11-20 18:22:43,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:22:43,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299765688] [2024-11-20 18:22:43,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:22:43,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:22:43,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:22:43,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 18:22:43,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:22:43,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299765688] [2024-11-20 18:22:43,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299765688] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 18:22:43,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 18:22:43,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 18:22:43,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011782459] [2024-11-20 18:22:43,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 18:22:43,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-20 18:22:43,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:22:43,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-20 18:22:43,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 18:22:43,636 INFO L87 Difference]: Start difference. First operand has 542 states, 273 states have (on average 1.9743589743589745) internal successors, (539), 531 states have internal predecessors, (539), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 18:22:43,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:22:43,708 INFO L93 Difference]: Finished difference Result 1063 states and 1111 transitions. [2024-11-20 18:22:43,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-20 18:22:43,713 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-20 18:22:43,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:22:43,726 INFO L225 Difference]: With dead ends: 1063 [2024-11-20 18:22:43,727 INFO L226 Difference]: Without dead ends: 523 [2024-11-20 18:22:43,734 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 18:22:43,740 INFO L432 NwaCegarLoop]: 539 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 18:22:43,740 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 18:22:43,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2024-11-20 18:22:43,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 523. [2024-11-20 18:22:43,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 268 states have (on average 1.9253731343283582) internal successors, (516), 513 states have internal predecessors, (516), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-20 18:22:43,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 532 transitions. [2024-11-20 18:22:43,799 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 532 transitions. Word has length 5 [2024-11-20 18:22:43,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:22:43,799 INFO L471 AbstractCegarLoop]: Abstraction has 523 states and 532 transitions. [2024-11-20 18:22:43,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 18:22:43,800 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 532 transitions. [2024-11-20 18:22:43,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-20 18:22:43,800 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:22:43,800 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-20 18:22:43,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 18:22:43,801 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 255 more)] === [2024-11-20 18:22:43,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:22:43,802 INFO L85 PathProgramCache]: Analyzing trace with hash 28699817, now seen corresponding path program 1 times [2024-11-20 18:22:43,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:22:43,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418560053] [2024-11-20 18:22:43,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:22:43,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:22:43,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:22:43,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 18:22:43,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:22:43,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418560053] [2024-11-20 18:22:43,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418560053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 18:22:43,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 18:22:43,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 18:22:43,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730181806] [2024-11-20 18:22:43,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 18:22:43,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 18:22:43,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:22:43,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 18:22:43,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 18:22:43,886 INFO L87 Difference]: Start difference. First operand 523 states and 532 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 18:22:44,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:22:44,728 INFO L93 Difference]: Finished difference Result 1288 states and 1420 transitions. [2024-11-20 18:22:44,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 18:22:44,729 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-20 18:22:44,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:22:44,736 INFO L225 Difference]: With dead ends: 1288 [2024-11-20 18:22:44,736 INFO L226 Difference]: Without dead ends: 771 [2024-11-20 18:22:44,737 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 [2024-11-20 18:22:44,738 INFO L432 NwaCegarLoop]: 317 mSDtfsCounter, 239 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-20 18:22:44,739 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 613 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-20 18:22:44,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 771 states. [2024-11-20 18:22:44,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 771 to 711. [2024-11-20 18:22:44,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 450 states have (on average 1.9133333333333333) internal successors, (861), 695 states have internal predecessors, (861), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-20 18:22:44,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 889 transitions. [2024-11-20 18:22:44,790 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 889 transitions. Word has length 5 [2024-11-20 18:22:44,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:22:44,791 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 889 transitions. [2024-11-20 18:22:44,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 18:22:44,792 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 889 transitions. [2024-11-20 18:22:44,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-20 18:22:44,793 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:22:44,794 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-20 18:22:44,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 18:22:44,795 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 255 more)] === [2024-11-20 18:22:44,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:22:44,796 INFO L85 PathProgramCache]: Analyzing trace with hash 889692871, now seen corresponding path program 1 times [2024-11-20 18:22:44,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:22:44,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792136909] [2024-11-20 18:22:44,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:22:44,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:22:44,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:22:44,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 18:22:44,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:22:44,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792136909] [2024-11-20 18:22:44,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792136909] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 18:22:44,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 18:22:44,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 18:22:44,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123158158] [2024-11-20 18:22:44,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 18:22:44,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 18:22:44,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:22:44,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 18:22:44,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 18:22:44,856 INFO L87 Difference]: Start difference. First operand 711 states and 889 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 18:22:45,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:22:45,754 INFO L93 Difference]: Finished difference Result 1146 states and 1405 transitions. [2024-11-20 18:22:45,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 18:22:45,754 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-20 18:22:45,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:22:45,759 INFO L225 Difference]: With dead ends: 1146 [2024-11-20 18:22:45,759 INFO L226 Difference]: Without dead ends: 1085 [2024-11-20 18:22:45,760 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 [2024-11-20 18:22:45,761 INFO L432 NwaCegarLoop]: 325 mSDtfsCounter, 369 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-20 18:22:45,762 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [377 Valid, 581 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-20 18:22:45,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1085 states. [2024-11-20 18:22:45,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1085 to 970. [2024-11-20 18:22:45,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 970 states, 701 states have (on average 1.7788873038516406) internal successors, (1247), 946 states have internal predecessors, (1247), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-20 18:22:45,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 1291 transitions. [2024-11-20 18:22:45,792 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 1291 transitions. Word has length 6 [2024-11-20 18:22:45,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:22:45,793 INFO L471 AbstractCegarLoop]: Abstraction has 970 states and 1291 transitions. [2024-11-20 18:22:45,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 18:22:45,793 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 1291 transitions. [2024-11-20 18:22:45,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-20 18:22:45,794 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:22:45,794 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 18:22:45,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 18:22:45,794 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 255 more)] === [2024-11-20 18:22:45,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:22:45,795 INFO L85 PathProgramCache]: Analyzing trace with hash 296359209, now seen corresponding path program 1 times [2024-11-20 18:22:45,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:22:45,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448355054] [2024-11-20 18:22:45,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:22:45,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:22:45,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:22:45,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 18:22:45,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:22:45,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448355054] [2024-11-20 18:22:45,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448355054] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 18:22:45,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 18:22:45,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 18:22:45,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616737104] [2024-11-20 18:22:45,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 18:22:45,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 18:22:45,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:22:45,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 18:22:45,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 18:22:45,871 INFO L87 Difference]: Start difference. First operand 970 states and 1291 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 18:22:46,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:22:46,770 INFO L93 Difference]: Finished difference Result 1008 states and 1291 transitions. [2024-11-20 18:22:46,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 18:22:46,771 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-20 18:22:46,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:22:46,775 INFO L225 Difference]: With dead ends: 1008 [2024-11-20 18:22:46,775 INFO L226 Difference]: Without dead ends: 1006 [2024-11-20 18:22:46,775 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 [2024-11-20 18:22:46,776 INFO L432 NwaCegarLoop]: 311 mSDtfsCounter, 212 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-20 18:22:46,777 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 471 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-20 18:22:46,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1006 states. [2024-11-20 18:22:46,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1006 to 970. [2024-11-20 18:22:46,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 970 states, 701 states have (on average 1.776034236804565) internal successors, (1245), 946 states have internal predecessors, (1245), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-20 18:22:46,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 1289 transitions. [2024-11-20 18:22:46,838 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 1289 transitions. Word has length 8 [2024-11-20 18:22:46,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:22:46,838 INFO L471 AbstractCegarLoop]: Abstraction has 970 states and 1289 transitions. [2024-11-20 18:22:46,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 18:22:46,839 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 1289 transitions. [2024-11-20 18:22:46,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-20 18:22:46,839 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:22:46,839 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2024-11-20 18:22:46,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 18:22:46,840 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 255 more)] === [2024-11-20 18:22:46,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:22:46,840 INFO L85 PathProgramCache]: Analyzing trace with hash 642042466, now seen corresponding path program 1 times [2024-11-20 18:22:46,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:22:46,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524987555] [2024-11-20 18:22:46,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:22:46,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:22:46,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:22:46,897 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 18:22:46,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:22:46,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524987555] [2024-11-20 18:22:46,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524987555] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 18:22:46,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1185520377] [2024-11-20 18:22:46,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:22:46,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:22:46,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 18:22:46,902 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 18:22:46,905 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 18:22:46,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:22:46,936 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 18:22:46,939 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 18:22:46,987 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 18:22:46,990 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 18:22:46,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1185520377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 18:22:46,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 18:22:46,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-11-20 18:22:46,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452658114] [2024-11-20 18:22:46,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 18:22:46,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 18:22:46,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:22:46,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 18:22:46,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 18:22:46,993 INFO L87 Difference]: Start difference. First operand 970 states and 1289 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 18:22:51,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-20 18:22:55,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-20 18:23:00,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-20 18:23:02,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:23:02,078 INFO L93 Difference]: Finished difference Result 1767 states and 2433 transitions. [2024-11-20 18:23:02,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 18:23:02,080 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-20 18:23:02,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:23:02,088 INFO L225 Difference]: With dead ends: 1767 [2024-11-20 18:23:02,089 INFO L226 Difference]: Without dead ends: 1636 [2024-11-20 18:23:02,089 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 18:23:02,090 INFO L432 NwaCegarLoop]: 421 mSDtfsCounter, 471 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 1049 mSolverCounterSat, 10 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 1019 SdHoareTripleChecker+Invalid, 1062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1049 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2024-11-20 18:23:02,091 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [483 Valid, 1019 Invalid, 1062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1049 Invalid, 3 Unknown, 0 Unchecked, 15.0s Time] [2024-11-20 18:23:02,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1636 states. [2024-11-20 18:23:02,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1636 to 1534. [2024-11-20 18:23:02,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1534 states, 1248 states have (on average 1.7700320512820513) internal successors, (2209), 1492 states have internal predecessors, (2209), 40 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-20 18:23:02,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1534 states to 1534 states and 2289 transitions. [2024-11-20 18:23:02,132 INFO L78 Accepts]: Start accepts. Automaton has 1534 states and 2289 transitions. Word has length 9 [2024-11-20 18:23:02,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:23:02,132 INFO L471 AbstractCegarLoop]: Abstraction has 1534 states and 2289 transitions. [2024-11-20 18:23:02,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 18:23:02,133 INFO L276 IsEmpty]: Start isEmpty. Operand 1534 states and 2289 transitions. [2024-11-20 18:23:02,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-20 18:23:02,133 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:23:02,133 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2024-11-20 18:23:02,143 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-20 18:23:02,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:23:02,338 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 255 more)] === [2024-11-20 18:23:02,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:23:02,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1571519984, now seen corresponding path program 1 times [2024-11-20 18:23:02,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:23:02,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728457235] [2024-11-20 18:23:02,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:23:02,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:23:02,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:23:02,376 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 18:23:02,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:23:02,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728457235] [2024-11-20 18:23:02,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728457235] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 18:23:02,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1173370023] [2024-11-20 18:23:02,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:23:02,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:23:02,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 18:23:02,378 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) [2024-11-20 18:23:02,380 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-20 18:23:02,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:23:02,405 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 18:23:02,406 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 18:23:02,431 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 18:23:02,431 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 18:23:02,467 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 18:23:02,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1173370023] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 18:23:02,468 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 18:23:02,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-20 18:23:02,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238630329] [2024-11-20 18:23:02,468 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 18:23:02,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 18:23:02,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:23:02,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 18:23:02,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-20 18:23:02,469 INFO L87 Difference]: Start difference. First operand 1534 states and 2289 transitions. Second operand has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 18:23:08,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-20 18:23:08,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:23:08,667 INFO L93 Difference]: Finished difference Result 2928 states and 4412 transitions. [2024-11-20 18:23:08,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 18:23:08,668 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-20 18:23:08,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:23:08,682 INFO L225 Difference]: With dead ends: 2928 [2024-11-20 18:23:08,682 INFO L226 Difference]: Without dead ends: 2925 [2024-11-20 18:23:08,684 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-20 18:23:08,685 INFO L432 NwaCegarLoop]: 316 mSDtfsCounter, 1550 mSDsluCounter, 1134 mSDsCounter, 0 mSdLazyCounter, 1265 mSolverCounterSat, 19 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1577 SdHoareTripleChecker+Valid, 1450 SdHoareTripleChecker+Invalid, 1285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1265 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2024-11-20 18:23:08,686 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1577 Valid, 1450 Invalid, 1285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1265 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2024-11-20 18:23:08,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2925 states. [2024-11-20 18:23:08,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2925 to 1544. [2024-11-20 18:23:08,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1544 states, 1260 states have (on average 1.7587301587301587) internal successors, (2216), 1502 states have internal predecessors, (2216), 40 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-20 18:23:08,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1544 states to 1544 states and 2296 transitions. [2024-11-20 18:23:08,743 INFO L78 Accepts]: Start accepts. Automaton has 1544 states and 2296 transitions. Word has length 10 [2024-11-20 18:23:08,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:23:08,743 INFO L471 AbstractCegarLoop]: Abstraction has 1544 states and 2296 transitions. [2024-11-20 18:23:08,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 18:23:08,745 INFO L276 IsEmpty]: Start isEmpty. Operand 1544 states and 2296 transitions. [2024-11-20 18:23:08,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-20 18:23:08,745 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:23:08,745 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 18:23:08,754 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-20 18:23:08,946 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 [2024-11-20 18:23:08,947 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 255 more)] === [2024-11-20 18:23:08,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:23:08,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1596338384, now seen corresponding path program 1 times [2024-11-20 18:23:08,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:23:08,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496496827] [2024-11-20 18:23:08,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:23:08,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:23:08,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:23:09,072 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 18:23:09,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:23:09,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496496827] [2024-11-20 18:23:09,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496496827] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 18:23:09,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [327130409] [2024-11-20 18:23:09,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:23:09,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:23:09,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 18:23:09,074 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) [2024-11-20 18:23:09,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-20 18:23:09,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:23:09,095 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 18:23:09,096 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 18:23:09,186 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 18:23:09,186 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 18:23:09,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [327130409] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 18:23:09,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 18:23:09,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-20 18:23:09,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041418567] [2024-11-20 18:23:09,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 18:23:09,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 18:23:09,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:23:09,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 18:23:09,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-20 18:23:09,188 INFO L87 Difference]: Start difference. First operand 1544 states and 2296 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 18:23:11,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:23:11,175 INFO L93 Difference]: Finished difference Result 1634 states and 2298 transitions. [2024-11-20 18:23:11,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 18:23:11,175 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-20 18:23:11,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:23:11,181 INFO L225 Difference]: With dead ends: 1634 [2024-11-20 18:23:11,181 INFO L226 Difference]: Without dead ends: 1620 [2024-11-20 18:23:11,182 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-20 18:23:11,182 INFO L432 NwaCegarLoop]: 355 mSDtfsCounter, 442 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 1085 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 1102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-20 18:23:11,183 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [454 Valid, 606 Invalid, 1102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1085 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-20 18:23:11,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1620 states. [2024-11-20 18:23:11,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1620 to 1544. [2024-11-20 18:23:11,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1544 states, 1260 states have (on average 1.746031746031746) internal successors, (2200), 1502 states have internal predecessors, (2200), 40 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-20 18:23:11,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1544 states to 1544 states and 2280 transitions. [2024-11-20 18:23:11,230 INFO L78 Accepts]: Start accepts. Automaton has 1544 states and 2280 transitions. Word has length 12 [2024-11-20 18:23:11,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:23:11,231 INFO L471 AbstractCegarLoop]: Abstraction has 1544 states and 2280 transitions. [2024-11-20 18:23:11,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 18:23:11,231 INFO L276 IsEmpty]: Start isEmpty. Operand 1544 states and 2280 transitions. [2024-11-20 18:23:11,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-20 18:23:11,232 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:23:11,232 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 18:23:11,241 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-20 18:23:11,433 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 [2024-11-20 18:23:11,433 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 255 more)] === [2024-11-20 18:23:11,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:23:11,434 INFO L85 PathProgramCache]: Analyzing trace with hash -2053117579, now seen corresponding path program 1 times [2024-11-20 18:23:11,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:23:11,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098282434] [2024-11-20 18:23:11,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:23:11,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:23:11,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:23:11,505 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 18:23:11,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:23:11,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098282434] [2024-11-20 18:23:11,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098282434] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 18:23:11,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1336185917] [2024-11-20 18:23:11,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:23:11,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:23:11,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 18:23:11,508 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) [2024-11-20 18:23:11,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-20 18:23:11,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:23:11,533 INFO L255 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 18:23:11,534 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 18:23:11,682 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 18:23:11,682 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 18:23:11,732 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 18:23:11,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1336185917] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 18:23:11,732 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 18:23:11,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2024-11-20 18:23:11,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925031454] [2024-11-20 18:23:11,733 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 18:23:11,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 18:23:11,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:23:11,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 18:23:11,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2024-11-20 18:23:11,736 INFO L87 Difference]: Start difference. First operand 1544 states and 2280 transitions. Second operand has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 8 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 18:23:14,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:23:14,498 INFO L93 Difference]: Finished difference Result 2830 states and 4273 transitions. [2024-11-20 18:23:14,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 18:23:14,499 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 8 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-20 18:23:14,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:23:14,509 INFO L225 Difference]: With dead ends: 2830 [2024-11-20 18:23:14,509 INFO L226 Difference]: Without dead ends: 2827 [2024-11-20 18:23:14,510 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=47, Unknown=0, NotChecked=0, Total=90 [2024-11-20 18:23:14,511 INFO L432 NwaCegarLoop]: 266 mSDtfsCounter, 1352 mSDsluCounter, 803 mSDsCounter, 0 mSdLazyCounter, 2156 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1370 SdHoareTripleChecker+Valid, 1069 SdHoareTripleChecker+Invalid, 2186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 2156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-20 18:23:14,511 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1370 Valid, 1069 Invalid, 2186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 2156 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-20 18:23:14,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2827 states. [2024-11-20 18:23:14,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2827 to 2134. [2024-11-20 18:23:14,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2134 states, 1832 states have (on average 1.7183406113537119) internal successors, (3148), 2074 states have internal predecessors, (3148), 58 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-20 18:23:14,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2134 states to 2134 states and 3264 transitions. [2024-11-20 18:23:14,567 INFO L78 Accepts]: Start accepts. Automaton has 2134 states and 3264 transitions. Word has length 13 [2024-11-20 18:23:14,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:23:14,567 INFO L471 AbstractCegarLoop]: Abstraction has 2134 states and 3264 transitions. [2024-11-20 18:23:14,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 8 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 18:23:14,567 INFO L276 IsEmpty]: Start isEmpty. Operand 2134 states and 3264 transitions. [2024-11-20 18:23:14,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-20 18:23:14,569 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:23:14,569 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 18:23:14,577 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-20 18:23:14,770 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 [2024-11-20 18:23:14,770 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 255 more)] === [2024-11-20 18:23:14,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:23:14,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1819848822, now seen corresponding path program 1 times [2024-11-20 18:23:14,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:23:14,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323590919] [2024-11-20 18:23:14,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:23:14,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:23:14,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-20 18:23:14,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1179382361] [2024-11-20 18:23:14,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:23:14,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:23:14,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 18:23:14,790 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) [2024-11-20 18:23:14,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-20 18:23:14,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:23:14,817 INFO L255 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-20 18:23:14,818 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 18:23:14,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 18:23:14,912 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 18:23:14,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:23:14,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323590919] [2024-11-20 18:23:14,913 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-20 18:23:14,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1179382361] [2024-11-20 18:23:14,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1179382361] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 18:23:14,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 18:23:14,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 18:23:14,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342484336] [2024-11-20 18:23:14,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 18:23:14,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 18:23:14,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:23:14,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 18:23:14,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 18:23:14,916 INFO L87 Difference]: Start difference. First operand 2134 states and 3264 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-20 18:23:15,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:23:15,699 INFO L93 Difference]: Finished difference Result 2174 states and 3264 transitions. [2024-11-20 18:23:15,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 18:23:15,700 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2024-11-20 18:23:15,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:23:15,708 INFO L225 Difference]: With dead ends: 2174 [2024-11-20 18:23:15,709 INFO L226 Difference]: Without dead ends: 2170 [2024-11-20 18:23:15,711 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 18:23:15,712 INFO L432 NwaCegarLoop]: 334 mSDtfsCounter, 208 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-20 18:23:15,712 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 569 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-20 18:23:15,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2170 states. [2024-11-20 18:23:15,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2170 to 2134. [2024-11-20 18:23:15,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2134 states, 1832 states have (on average 1.7161572052401746) internal successors, (3144), 2074 states have internal predecessors, (3144), 58 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-20 18:23:15,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2134 states to 2134 states and 3260 transitions. [2024-11-20 18:23:15,759 INFO L78 Accepts]: Start accepts. Automaton has 2134 states and 3260 transitions. Word has length 17 [2024-11-20 18:23:15,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:23:15,759 INFO L471 AbstractCegarLoop]: Abstraction has 2134 states and 3260 transitions. [2024-11-20 18:23:15,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-20 18:23:15,760 INFO L276 IsEmpty]: Start isEmpty. Operand 2134 states and 3260 transitions. [2024-11-20 18:23:15,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-20 18:23:15,761 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:23:15,761 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 18:23:15,770 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-20 18:23:15,962 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 [2024-11-20 18:23:15,962 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 255 more)] === [2024-11-20 18:23:15,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:23:15,963 INFO L85 PathProgramCache]: Analyzing trace with hash 580738712, now seen corresponding path program 1 times [2024-11-20 18:23:15,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:23:15,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348664642] [2024-11-20 18:23:15,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:23:15,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:23:15,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-20 18:23:15,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [994691921] [2024-11-20 18:23:15,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:23:15,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:23:15,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 18:23:15,972 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) [2024-11-20 18:23:15,975 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-20 18:23:16,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:23:16,009 INFO L255 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-20 18:23:16,010 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 18:23:16,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 18:23:16,094 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 18:23:16,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:23:16,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348664642] [2024-11-20 18:23:16,094 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-20 18:23:16,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [994691921] [2024-11-20 18:23:16,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [994691921] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 18:23:16,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 18:23:16,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 18:23:16,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110896743] [2024-11-20 18:23:16,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 18:23:16,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 18:23:16,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:23:16,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 18:23:16,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 18:23:16,096 INFO L87 Difference]: Start difference. First operand 2134 states and 3260 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-20 18:23:16,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:23:16,972 INFO L93 Difference]: Finished difference Result 2173 states and 3260 transitions. [2024-11-20 18:23:16,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 18:23:16,972 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2024-11-20 18:23:16,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:23:16,980 INFO L225 Difference]: With dead ends: 2173 [2024-11-20 18:23:16,980 INFO L226 Difference]: Without dead ends: 2170 [2024-11-20 18:23:16,980 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 18:23:16,981 INFO L432 NwaCegarLoop]: 337 mSDtfsCounter, 207 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-20 18:23:16,981 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 572 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-20 18:23:16,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2170 states. [2024-11-20 18:23:17,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2170 to 2134. [2024-11-20 18:23:17,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2134 states, 1832 states have (on average 1.7145196506550218) internal successors, (3141), 2074 states have internal predecessors, (3141), 58 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-20 18:23:17,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2134 states to 2134 states and 3257 transitions. [2024-11-20 18:23:17,023 INFO L78 Accepts]: Start accepts. Automaton has 2134 states and 3257 transitions. Word has length 18 [2024-11-20 18:23:17,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:23:17,024 INFO L471 AbstractCegarLoop]: Abstraction has 2134 states and 3257 transitions. [2024-11-20 18:23:17,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-20 18:23:17,024 INFO L276 IsEmpty]: Start isEmpty. Operand 2134 states and 3257 transitions. [2024-11-20 18:23:17,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-20 18:23:17,025 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:23:17,025 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 18:23:17,033 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-20 18:23:17,225 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 [2024-11-20 18:23:17,226 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 255 more)] === [2024-11-20 18:23:17,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:23:17,226 INFO L85 PathProgramCache]: Analyzing trace with hash -255843686, now seen corresponding path program 1 times [2024-11-20 18:23:17,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:23:17,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544635753] [2024-11-20 18:23:17,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:23:17,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:23:17,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-20 18:23:17,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1202717339] [2024-11-20 18:23:17,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:23:17,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:23:17,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 18:23:17,239 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) [2024-11-20 18:23:17,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-20 18:23:17,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:23:17,271 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 18:23:17,272 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 18:23:17,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 18:23:17,346 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 18:23:17,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:23:17,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544635753] [2024-11-20 18:23:17,346 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-20 18:23:17,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1202717339] [2024-11-20 18:23:17,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1202717339] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 18:23:17,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 18:23:17,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 18:23:17,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696561858] [2024-11-20 18:23:17,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 18:23:17,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 18:23:17,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:23:17,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 18:23:17,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-20 18:23:17,348 INFO L87 Difference]: Start difference. First operand 2134 states and 3257 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-20 18:23:18,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:23:18,772 INFO L93 Difference]: Finished difference Result 2249 states and 3268 transitions. [2024-11-20 18:23:18,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 18:23:18,773 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2024-11-20 18:23:18,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:23:18,779 INFO L225 Difference]: With dead ends: 2249 [2024-11-20 18:23:18,779 INFO L226 Difference]: Without dead ends: 2246 [2024-11-20 18:23:18,780 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-20 18:23:18,780 INFO L432 NwaCegarLoop]: 224 mSDtfsCounter, 580 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 694 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 588 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-20 18:23:18,781 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [588 Valid, 526 Invalid, 705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 694 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-20 18:23:18,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2246 states. [2024-11-20 18:23:18,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2246 to 2134. [2024-11-20 18:23:18,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2134 states, 1832 states have (on average 1.705240174672489) internal successors, (3124), 2074 states have internal predecessors, (3124), 58 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-20 18:23:18,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2134 states to 2134 states and 3240 transitions. [2024-11-20 18:23:18,828 INFO L78 Accepts]: Start accepts. Automaton has 2134 states and 3240 transitions. Word has length 20 [2024-11-20 18:23:18,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:23:18,829 INFO L471 AbstractCegarLoop]: Abstraction has 2134 states and 3240 transitions. [2024-11-20 18:23:18,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-20 18:23:18,829 INFO L276 IsEmpty]: Start isEmpty. Operand 2134 states and 3240 transitions. [2024-11-20 18:23:18,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-20 18:23:18,830 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:23:18,830 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 18:23:18,839 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-20 18:23:19,030 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 [2024-11-20 18:23:19,031 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 255 more)] === [2024-11-20 18:23:19,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:23:19,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1521237841, now seen corresponding path program 1 times [2024-11-20 18:23:19,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:23:19,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119071540] [2024-11-20 18:23:19,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:23:19,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:23:19,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-20 18:23:19,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [839607707] [2024-11-20 18:23:19,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:23:19,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:23:19,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 18:23:19,063 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) [2024-11-20 18:23:19,065 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-20 18:23:19,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:23:19,089 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-20 18:23:19,090 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 18:23:19,182 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 18:23:19,183 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 18:23:19,411 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 18:23:19,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:23:19,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119071540] [2024-11-20 18:23:19,411 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-20 18:23:19,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [839607707] [2024-11-20 18:23:19,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [839607707] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 18:23:19,411 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-20 18:23:19,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-11-20 18:23:19,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705871886] [2024-11-20 18:23:19,411 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-20 18:23:19,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 18:23:19,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:23:19,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 18:23:19,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-20 18:23:19,412 INFO L87 Difference]: Start difference. First operand 2134 states and 3240 transitions. Second operand has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 states have internal predecessors, (34), 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) [2024-11-20 18:23:21,992 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-20 18:23:28,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-20 18:23:32,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-20 18:23:36,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-20 18:23:37,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-20 18:23:41,670 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-20 18:23:45,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-20 18:23:50,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-20 18:23:54,477 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-20 18:23:58,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-20 18:24:02,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-20 18:24:04,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-20 18:24:08,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-20 18:24:09,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:24:09,882 INFO L93 Difference]: Finished difference Result 2268 states and 3266 transitions. [2024-11-20 18:24:09,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-20 18:24:09,883 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 states have internal predecessors, (34), 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) Word has length 21 [2024-11-20 18:24:09,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:24:09,890 INFO L225 Difference]: With dead ends: 2268 [2024-11-20 18:24:09,890 INFO L226 Difference]: Without dead ends: 2261 [2024-11-20 18:24:09,891 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=92, Unknown=0, NotChecked=0, Total=156 [2024-11-20 18:24:09,891 INFO L432 NwaCegarLoop]: 312 mSDtfsCounter, 1555 mSDsluCounter, 725 mSDsCounter, 0 mSdLazyCounter, 2527 mSolverCounterSat, 83 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1566 SdHoareTripleChecker+Valid, 1037 SdHoareTripleChecker+Invalid, 2623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 2527 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.3s IncrementalHoareTripleChecker+Time [2024-11-20 18:24:09,892 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1566 Valid, 1037 Invalid, 2623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 2527 Invalid, 13 Unknown, 0 Unchecked, 50.3s Time] [2024-11-20 18:24:09,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2261 states. [2024-11-20 18:24:09,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2261 to 2141. [2024-11-20 18:24:09,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2141 states, 1840 states have (on average 1.682608695652174) internal successors, (3096), 2080 states have internal predecessors, (3096), 59 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-20 18:24:09,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2141 states to 2141 states and 3214 transitions. [2024-11-20 18:24:09,942 INFO L78 Accepts]: Start accepts. Automaton has 2141 states and 3214 transitions. Word has length 21 [2024-11-20 18:24:09,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:24:09,943 INFO L471 AbstractCegarLoop]: Abstraction has 2141 states and 3214 transitions. [2024-11-20 18:24:09,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 states have internal predecessors, (34), 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) [2024-11-20 18:24:09,944 INFO L276 IsEmpty]: Start isEmpty. Operand 2141 states and 3214 transitions. [2024-11-20 18:24:09,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-20 18:24:09,947 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:24:09,947 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 18:24:09,955 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-20 18:24:10,147 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 [2024-11-20 18:24:10,148 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 255 more)] === [2024-11-20 18:24:10,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:24:10,148 INFO L85 PathProgramCache]: Analyzing trace with hash 658780410, now seen corresponding path program 1 times [2024-11-20 18:24:10,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:24:10,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806240410] [2024-11-20 18:24:10,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:24:10,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:24:10,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-20 18:24:10,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1962171667] [2024-11-20 18:24:10,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:24:10,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:24:10,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 18:24:10,157 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) [2024-11-20 18:24:10,159 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-20 18:24:10,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:24:10,188 INFO L255 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 18:24:10,190 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 18:24:10,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 18:24:10,300 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 18:24:10,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:24:10,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806240410] [2024-11-20 18:24:10,300 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-20 18:24:10,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1962171667] [2024-11-20 18:24:10,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1962171667] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 18:24:10,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 18:24:10,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 18:24:10,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422365170] [2024-11-20 18:24:10,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 18:24:10,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 18:24:10,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:24:10,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 18:24:10,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 18:24:10,301 INFO L87 Difference]: Start difference. First operand 2141 states and 3214 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-20 18:24:11,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:24:11,398 INFO L93 Difference]: Finished difference Result 2165 states and 3214 transitions. [2024-11-20 18:24:11,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 18:24:11,398 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2024-11-20 18:24:11,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:24:11,404 INFO L225 Difference]: With dead ends: 2165 [2024-11-20 18:24:11,405 INFO L226 Difference]: Without dead ends: 2161 [2024-11-20 18:24:11,405 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 18:24:11,406 INFO L432 NwaCegarLoop]: 303 mSDtfsCounter, 188 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-20 18:24:11,406 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 474 Invalid, 582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-20 18:24:11,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2161 states. [2024-11-20 18:24:11,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2161 to 2141. [2024-11-20 18:24:11,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2141 states, 1840 states have (on average 1.6804347826086956) internal successors, (3092), 2080 states have internal predecessors, (3092), 59 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-20 18:24:11,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2141 states to 2141 states and 3210 transitions. [2024-11-20 18:24:11,454 INFO L78 Accepts]: Start accepts. Automaton has 2141 states and 3210 transitions. Word has length 21 [2024-11-20 18:24:11,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:24:11,454 INFO L471 AbstractCegarLoop]: Abstraction has 2141 states and 3210 transitions. [2024-11-20 18:24:11,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-20 18:24:11,455 INFO L276 IsEmpty]: Start isEmpty. Operand 2141 states and 3210 transitions. [2024-11-20 18:24:11,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-20 18:24:11,455 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:24:11,455 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 18:24:11,464 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-20 18:24:11,656 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 [2024-11-20 18:24:11,656 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 255 more)] === [2024-11-20 18:24:11,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:24:11,657 INFO L85 PathProgramCache]: Analyzing trace with hash 86267263, now seen corresponding path program 1 times [2024-11-20 18:24:11,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:24:11,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682060306] [2024-11-20 18:24:11,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:24:11,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:24:11,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-20 18:24:11,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [64197520] [2024-11-20 18:24:11,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:24:11,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:24:11,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 18:24:11,676 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) [2024-11-20 18:24:11,682 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-20 18:24:11,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:24:11,711 INFO L255 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-20 18:24:11,711 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 18:24:11,808 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 18:24:11,808 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 18:24:12,035 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 18:24:12,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:24:12,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682060306] [2024-11-20 18:24:12,035 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-20 18:24:12,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [64197520] [2024-11-20 18:24:12,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [64197520] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 18:24:12,035 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-20 18:24:12,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-11-20 18:24:12,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190195894] [2024-11-20 18:24:12,036 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-20 18:24:12,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 18:24:12,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:24:12,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 18:24:12,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-20 18:24:12,039 INFO L87 Difference]: Start difference. First operand 2141 states and 3210 transitions. Second operand has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 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)