./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.1.ufo.BOUNDED-8.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.1.ufo.BOUNDED-8.pals.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d0919f37d9ec3b35ef959618459b2f9ff909696f753b572bc67b87ebda7b05b0 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 08:12:59,612 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 08:12:59,682 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 08:12:59,689 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 08:12:59,691 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 08:12:59,714 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 08:12:59,715 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 08:12:59,715 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 08:12:59,716 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 08:12:59,716 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 08:12:59,716 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 08:12:59,717 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 08:12:59,718 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 08:12:59,718 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 08:12:59,718 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 08:12:59,719 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 08:12:59,719 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 08:12:59,719 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 08:12:59,720 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 08:12:59,720 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 08:12:59,721 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 08:12:59,721 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 08:12:59,721 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 08:12:59,725 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 08:12:59,725 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 08:12:59,726 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 08:12:59,726 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 08:12:59,726 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 08:12:59,726 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 08:12:59,727 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 08:12:59,727 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 08:12:59,728 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 08:12:59,728 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:12:59,728 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 08:12:59,729 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 08:12:59,729 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 08:12:59,729 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 08:12:59,730 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 08:12:59,730 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 08:12:59,730 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 08:12:59,731 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 08:12:59,731 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 08:12:59,732 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d0919f37d9ec3b35ef959618459b2f9ff909696f753b572bc67b87ebda7b05b0 [2024-11-16 08:12:59,973 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 08:13:00,001 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 08:13:00,006 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 08:13:00,007 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 08:13:00,008 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 08:13:00,010 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.1.ufo.BOUNDED-8.pals.c [2024-11-16 08:13:01,409 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 08:13:01,668 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 08:13:01,669 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.1.ufo.BOUNDED-8.pals.c [2024-11-16 08:13:01,686 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1fd9064e/1ec2f061d0d64c3ab2b44daeebdfaf2c/FLAG2caa784fc [2024-11-16 08:13:01,700 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1fd9064e/1ec2f061d0d64c3ab2b44daeebdfaf2c [2024-11-16 08:13:01,702 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 08:13:01,704 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 08:13:01,706 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 08:13:01,706 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 08:13:01,710 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 08:13:01,711 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:13:01" (1/1) ... [2024-11-16 08:13:01,712 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@382b25e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:13:01, skipping insertion in model container [2024-11-16 08:13:01,712 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:13:01" (1/1) ... [2024-11-16 08:13:01,766 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 08:13:02,139 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.1.ufo.BOUNDED-8.pals.c[24198,24211] [2024-11-16 08:13:02,143 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:13:02,154 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 08:13:02,251 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.1.ufo.BOUNDED-8.pals.c[24198,24211] [2024-11-16 08:13:02,252 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:13:02,273 INFO L204 MainTranslator]: Completed translation [2024-11-16 08:13:02,274 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:13:02 WrapperNode [2024-11-16 08:13:02,274 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 08:13:02,275 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 08:13:02,275 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 08:13:02,275 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 08:13:02,280 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:13:02" (1/1) ... [2024-11-16 08:13:02,295 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:13:02" (1/1) ... [2024-11-16 08:13:02,342 INFO L138 Inliner]: procedures = 23, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 933 [2024-11-16 08:13:02,343 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 08:13:02,343 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 08:13:02,343 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 08:13:02,343 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 08:13:02,356 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:13:02" (1/1) ... [2024-11-16 08:13:02,356 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:13:02" (1/1) ... [2024-11-16 08:13:02,361 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:13:02" (1/1) ... [2024-11-16 08:13:02,381 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]. [2024-11-16 08:13:02,385 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:13:02" (1/1) ... [2024-11-16 08:13:02,385 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:13:02" (1/1) ... [2024-11-16 08:13:02,409 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:13:02" (1/1) ... [2024-11-16 08:13:02,412 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:13:02" (1/1) ... [2024-11-16 08:13:02,418 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:13:02" (1/1) ... [2024-11-16 08:13:02,425 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:13:02" (1/1) ... [2024-11-16 08:13:02,438 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 08:13:02,439 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 08:13:02,439 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 08:13:02,439 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 08:13:02,440 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:13:02" (1/1) ... [2024-11-16 08:13:02,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:13:02,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:13:02,473 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) [2024-11-16 08:13:02,475 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 [2024-11-16 08:13:02,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 08:13:02,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 08:13:02,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 08:13:02,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 08:13:02,633 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 08:13:02,635 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 08:13:03,646 INFO L? ?]: Removed 99 outVars from TransFormulas that were not future-live. [2024-11-16 08:13:03,648 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 08:13:03,674 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 08:13:03,675 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 08:13:03,675 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:13:03 BoogieIcfgContainer [2024-11-16 08:13:03,676 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 08:13:03,678 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 08:13:03,679 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 08:13:03,682 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 08:13:03,682 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:13:01" (1/3) ... [2024-11-16 08:13:03,683 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a377177 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:13:03, skipping insertion in model container [2024-11-16 08:13:03,683 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:13:02" (2/3) ... [2024-11-16 08:13:03,684 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a377177 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:13:03, skipping insertion in model container [2024-11-16 08:13:03,685 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:13:03" (3/3) ... [2024-11-16 08:13:03,687 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.1.ufo.BOUNDED-8.pals.c [2024-11-16 08:13:03,701 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 08:13:03,702 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 08:13:03,776 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 08:13:03,784 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;@78f665c9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 08:13:03,784 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 08:13:03,790 INFO L276 IsEmpty]: Start isEmpty. Operand has 298 states, 296 states have (on average 1.7432432432432432) internal successors, (516), 297 states have internal predecessors, (516), 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) [2024-11-16 08:13:03,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-16 08:13:03,802 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:13:03,803 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:13:03,804 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:13:03,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:13:03,809 INFO L85 PathProgramCache]: Analyzing trace with hash -94647063, now seen corresponding path program 1 times [2024-11-16 08:13:03,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:13:03,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235874775] [2024-11-16 08:13:03,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:13:03,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:13:04,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:13:04,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:13:04,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:13:04,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235874775] [2024-11-16 08:13:04,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235874775] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:13:04,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:13:04,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 08:13:04,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845312318] [2024-11-16 08:13:04,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:13:04,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 08:13:04,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:13:04,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 08:13:04,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 08:13:04,370 INFO L87 Difference]: Start difference. First operand has 298 states, 296 states have (on average 1.7432432432432432) internal successors, (516), 297 states have internal predecessors, (516), 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) Second operand has 2 states, 2 states have (on average 39.5) internal successors, (79), 2 states have internal predecessors, (79), 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) [2024-11-16 08:13:04,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:13:04,419 INFO L93 Difference]: Finished difference Result 392 states and 677 transitions. [2024-11-16 08:13:04,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 08:13:04,422 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 39.5) internal successors, (79), 2 states have internal predecessors, (79), 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 79 [2024-11-16 08:13:04,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:13:04,435 INFO L225 Difference]: With dead ends: 392 [2024-11-16 08:13:04,436 INFO L226 Difference]: Without dead ends: 293 [2024-11-16 08:13:04,438 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 [2024-11-16 08:13:04,441 INFO L432 NwaCegarLoop]: 512 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, 512 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 [2024-11-16 08:13:04,442 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:13:04,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2024-11-16 08:13:04,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 293. [2024-11-16 08:13:04,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 292 states have (on average 1.7397260273972603) internal successors, (508), 292 states have internal predecessors, (508), 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) [2024-11-16 08:13:04,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 508 transitions. [2024-11-16 08:13:04,510 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 508 transitions. Word has length 79 [2024-11-16 08:13:04,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:13:04,511 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 508 transitions. [2024-11-16 08:13:04,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 39.5) internal successors, (79), 2 states have internal predecessors, (79), 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) [2024-11-16 08:13:04,512 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 508 transitions. [2024-11-16 08:13:04,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-16 08:13:04,516 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:13:04,517 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:13:04,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 08:13:04,517 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:13:04,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:13:04,518 INFO L85 PathProgramCache]: Analyzing trace with hash -63627256, now seen corresponding path program 1 times [2024-11-16 08:13:04,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:13:04,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308688741] [2024-11-16 08:13:04,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:13:04,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:13:04,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:13:04,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:13:04,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:13:04,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308688741] [2024-11-16 08:13:04,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308688741] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:13:04,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:13:04,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 08:13:04,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839510509] [2024-11-16 08:13:04,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:13:04,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:13:04,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:13:04,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:13:04,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:13:04,930 INFO L87 Difference]: Start difference. First operand 293 states and 508 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 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) [2024-11-16 08:13:05,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:13:05,054 INFO L93 Difference]: Finished difference Result 386 states and 666 transitions. [2024-11-16 08:13:05,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:13:05,059 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 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 79 [2024-11-16 08:13:05,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:13:05,061 INFO L225 Difference]: With dead ends: 386 [2024-11-16 08:13:05,061 INFO L226 Difference]: Without dead ends: 293 [2024-11-16 08:13:05,062 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:13:05,063 INFO L432 NwaCegarLoop]: 506 mSDtfsCounter, 0 mSDsluCounter, 1483 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1989 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:13:05,064 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1989 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:13:05,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2024-11-16 08:13:05,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 293. [2024-11-16 08:13:05,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 292 states have (on average 1.6369863013698631) internal successors, (478), 292 states have internal predecessors, (478), 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) [2024-11-16 08:13:05,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 478 transitions. [2024-11-16 08:13:05,084 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 478 transitions. Word has length 79 [2024-11-16 08:13:05,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:13:05,085 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 478 transitions. [2024-11-16 08:13:05,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 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) [2024-11-16 08:13:05,085 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 478 transitions. [2024-11-16 08:13:05,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-16 08:13:05,091 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:13:05,091 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:13:05,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 08:13:05,091 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:13:05,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:13:05,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1044560206, now seen corresponding path program 1 times [2024-11-16 08:13:05,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:13:05,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557811196] [2024-11-16 08:13:05,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:13:05,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:13:05,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:13:05,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:13:05,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:13:05,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557811196] [2024-11-16 08:13:05,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557811196] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:13:05,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:13:05,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:13:05,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173576773] [2024-11-16 08:13:05,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:13:05,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:13:05,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:13:05,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:13:05,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:13:05,388 INFO L87 Difference]: Start difference. First operand 293 states and 478 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 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) [2024-11-16 08:13:05,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:13:05,443 INFO L93 Difference]: Finished difference Result 460 states and 765 transitions. [2024-11-16 08:13:05,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:13:05,445 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 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 108 [2024-11-16 08:13:05,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:13:05,447 INFO L225 Difference]: With dead ends: 460 [2024-11-16 08:13:05,447 INFO L226 Difference]: Without dead ends: 371 [2024-11-16 08:13:05,448 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:13:05,449 INFO L432 NwaCegarLoop]: 480 mSDtfsCounter, 124 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 919 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:13:05,449 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 919 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:13:05,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2024-11-16 08:13:05,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 368. [2024-11-16 08:13:05,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 367 states have (on average 1.6457765667574933) internal successors, (604), 367 states have internal predecessors, (604), 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) [2024-11-16 08:13:05,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 604 transitions. [2024-11-16 08:13:05,474 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 604 transitions. Word has length 108 [2024-11-16 08:13:05,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:13:05,475 INFO L471 AbstractCegarLoop]: Abstraction has 368 states and 604 transitions. [2024-11-16 08:13:05,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 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) [2024-11-16 08:13:05,476 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 604 transitions. [2024-11-16 08:13:05,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-16 08:13:05,478 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:13:05,478 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:13:05,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 08:13:05,479 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:13:05,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:13:05,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1357226343, now seen corresponding path program 1 times [2024-11-16 08:13:05,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:13:05,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685922805] [2024-11-16 08:13:05,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:13:05,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:13:05,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:13:05,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:13:05,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:13:05,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685922805] [2024-11-16 08:13:05,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685922805] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:13:05,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:13:05,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:13:05,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437004158] [2024-11-16 08:13:05,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:13:05,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:13:05,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:13:05,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:13:05,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:13:05,662 INFO L87 Difference]: Start difference. First operand 368 states and 604 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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) [2024-11-16 08:13:05,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:13:05,693 INFO L93 Difference]: Finished difference Result 678 states and 1130 transitions. [2024-11-16 08:13:05,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:13:05,694 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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 111 [2024-11-16 08:13:05,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:13:05,697 INFO L225 Difference]: With dead ends: 678 [2024-11-16 08:13:05,698 INFO L226 Difference]: Without dead ends: 514 [2024-11-16 08:13:05,699 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:13:05,704 INFO L432 NwaCegarLoop]: 476 mSDtfsCounter, 125 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 924 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:13:05,704 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 924 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:13:05,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2024-11-16 08:13:05,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 511. [2024-11-16 08:13:05,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 510 states have (on average 1.6588235294117648) internal successors, (846), 510 states have internal predecessors, (846), 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) [2024-11-16 08:13:05,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 846 transitions. [2024-11-16 08:13:05,733 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 846 transitions. Word has length 111 [2024-11-16 08:13:05,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:13:05,734 INFO L471 AbstractCegarLoop]: Abstraction has 511 states and 846 transitions. [2024-11-16 08:13:05,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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) [2024-11-16 08:13:05,734 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 846 transitions. [2024-11-16 08:13:05,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-16 08:13:05,735 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:13:05,736 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:13:05,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 08:13:05,736 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:13:05,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:13:05,737 INFO L85 PathProgramCache]: Analyzing trace with hash -965263398, now seen corresponding path program 1 times [2024-11-16 08:13:05,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:13:05,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962054485] [2024-11-16 08:13:05,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:13:05,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:13:05,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:13:05,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:13:05,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:13:05,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962054485] [2024-11-16 08:13:05,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962054485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:13:05,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:13:05,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:13:05,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121530090] [2024-11-16 08:13:05,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:13:05,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:13:05,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:13:05,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:13:05,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:13:05,917 INFO L87 Difference]: Start difference. First operand 511 states and 846 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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) [2024-11-16 08:13:05,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:13:05,952 INFO L93 Difference]: Finished difference Result 1089 states and 1822 transitions. [2024-11-16 08:13:05,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:13:05,953 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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 114 [2024-11-16 08:13:05,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:13:05,957 INFO L225 Difference]: With dead ends: 1089 [2024-11-16 08:13:05,957 INFO L226 Difference]: Without dead ends: 782 [2024-11-16 08:13:05,959 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:13:05,960 INFO L432 NwaCegarLoop]: 476 mSDtfsCounter, 118 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 925 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:13:05,963 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 925 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:13:05,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2024-11-16 08:13:05,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 779. [2024-11-16 08:13:05,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 779 states, 778 states have (on average 1.6632390745501284) internal successors, (1294), 778 states have internal predecessors, (1294), 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) [2024-11-16 08:13:05,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 779 states and 1294 transitions. [2024-11-16 08:13:05,991 INFO L78 Accepts]: Start accepts. Automaton has 779 states and 1294 transitions. Word has length 114 [2024-11-16 08:13:05,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:13:05,992 INFO L471 AbstractCegarLoop]: Abstraction has 779 states and 1294 transitions. [2024-11-16 08:13:05,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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) [2024-11-16 08:13:05,993 INFO L276 IsEmpty]: Start isEmpty. Operand 779 states and 1294 transitions. [2024-11-16 08:13:05,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-16 08:13:05,995 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:13:05,995 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:13:05,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 08:13:05,996 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:13:05,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:13:05,997 INFO L85 PathProgramCache]: Analyzing trace with hash -658847821, now seen corresponding path program 1 times [2024-11-16 08:13:05,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:13:05,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079601321] [2024-11-16 08:13:05,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:13:05,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:13:06,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:13:06,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:13:06,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:13:06,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079601321] [2024-11-16 08:13:06,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079601321] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:13:06,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:13:06,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:13:06,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160792779] [2024-11-16 08:13:06,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:13:06,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:13:06,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:13:06,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:13:06,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:13:06,165 INFO L87 Difference]: Start difference. First operand 779 states and 1294 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 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) [2024-11-16 08:13:06,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:13:06,224 INFO L93 Difference]: Finished difference Result 1857 states and 3098 transitions. [2024-11-16 08:13:06,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:13:06,225 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 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 117 [2024-11-16 08:13:06,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:13:06,234 INFO L225 Difference]: With dead ends: 1857 [2024-11-16 08:13:06,235 INFO L226 Difference]: Without dead ends: 1282 [2024-11-16 08:13:06,236 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:13:06,238 INFO L432 NwaCegarLoop]: 516 mSDtfsCounter, 111 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 966 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:13:06,240 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 966 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:13:06,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1282 states. [2024-11-16 08:13:06,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1282 to 1279. [2024-11-16 08:13:06,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1279 states, 1278 states have (on average 1.6572769953051643) internal successors, (2118), 1278 states have internal predecessors, (2118), 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) [2024-11-16 08:13:06,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1279 states to 1279 states and 2118 transitions. [2024-11-16 08:13:06,275 INFO L78 Accepts]: Start accepts. Automaton has 1279 states and 2118 transitions. Word has length 117 [2024-11-16 08:13:06,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:13:06,279 INFO L471 AbstractCegarLoop]: Abstraction has 1279 states and 2118 transitions. [2024-11-16 08:13:06,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 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) [2024-11-16 08:13:06,279 INFO L276 IsEmpty]: Start isEmpty. Operand 1279 states and 2118 transitions. [2024-11-16 08:13:06,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-16 08:13:06,281 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:13:06,282 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:13:06,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 08:13:06,282 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:13:06,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:13:06,283 INFO L85 PathProgramCache]: Analyzing trace with hash -861310102, now seen corresponding path program 1 times [2024-11-16 08:13:06,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:13:06,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914913314] [2024-11-16 08:13:06,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:13:06,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:13:06,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:13:06,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:13:06,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:13:06,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914913314] [2024-11-16 08:13:06,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914913314] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:13:06,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:13:06,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:13:06,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840154697] [2024-11-16 08:13:06,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:13:06,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:13:06,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:13:06,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:13:06,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:13:06,433 INFO L87 Difference]: Start difference. First operand 1279 states and 2118 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 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) [2024-11-16 08:13:06,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:13:06,484 INFO L93 Difference]: Finished difference Result 2446 states and 4071 transitions. [2024-11-16 08:13:06,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:13:06,485 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 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 120 [2024-11-16 08:13:06,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:13:06,494 INFO L225 Difference]: With dead ends: 2446 [2024-11-16 08:13:06,494 INFO L226 Difference]: Without dead ends: 1871 [2024-11-16 08:13:06,496 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:13:06,497 INFO L432 NwaCegarLoop]: 517 mSDtfsCounter, 112 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 976 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:13:06,497 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 976 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:13:06,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1871 states. [2024-11-16 08:13:06,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1871 to 1868. [2024-11-16 08:13:06,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1868 states, 1867 states have (on average 1.6513122656668453) internal successors, (3083), 1867 states have internal predecessors, (3083), 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) [2024-11-16 08:13:06,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1868 states to 1868 states and 3083 transitions. [2024-11-16 08:13:06,547 INFO L78 Accepts]: Start accepts. Automaton has 1868 states and 3083 transitions. Word has length 120 [2024-11-16 08:13:06,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:13:06,548 INFO L471 AbstractCegarLoop]: Abstraction has 1868 states and 3083 transitions. [2024-11-16 08:13:06,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 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) [2024-11-16 08:13:06,548 INFO L276 IsEmpty]: Start isEmpty. Operand 1868 states and 3083 transitions. [2024-11-16 08:13:06,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-16 08:13:06,549 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:13:06,550 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:13:06,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 08:13:06,550 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:13:06,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:13:06,550 INFO L85 PathProgramCache]: Analyzing trace with hash 778869350, now seen corresponding path program 1 times [2024-11-16 08:13:06,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:13:06,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746811696] [2024-11-16 08:13:06,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:13:06,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:13:06,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:13:06,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:13:06,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:13:06,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746811696] [2024-11-16 08:13:06,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746811696] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:13:06,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:13:06,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:13:06,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202807433] [2024-11-16 08:13:06,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:13:06,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 08:13:06,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:13:06,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 08:13:06,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 08:13:06,824 INFO L87 Difference]: Start difference. First operand 1868 states and 3083 transitions. Second operand has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 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) [2024-11-16 08:13:07,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:13:07,181 INFO L93 Difference]: Finished difference Result 9371 states and 15750 transitions. [2024-11-16 08:13:07,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:13:07,182 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 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 120 [2024-11-16 08:13:07,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:13:07,214 INFO L225 Difference]: With dead ends: 9371 [2024-11-16 08:13:07,214 INFO L226 Difference]: Without dead ends: 7836 [2024-11-16 08:13:07,220 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:13:07,223 INFO L432 NwaCegarLoop]: 529 mSDtfsCounter, 1256 mSDsluCounter, 2949 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1256 SdHoareTripleChecker+Valid, 3478 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:13:07,225 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1256 Valid, 3478 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:13:07,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7836 states. [2024-11-16 08:13:07,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7836 to 3356. [2024-11-16 08:13:07,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3356 states, 3355 states have (on average 1.6572280178837555) internal successors, (5560), 3355 states have internal predecessors, (5560), 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) [2024-11-16 08:13:07,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3356 states to 3356 states and 5560 transitions. [2024-11-16 08:13:07,383 INFO L78 Accepts]: Start accepts. Automaton has 3356 states and 5560 transitions. Word has length 120 [2024-11-16 08:13:07,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:13:07,383 INFO L471 AbstractCegarLoop]: Abstraction has 3356 states and 5560 transitions. [2024-11-16 08:13:07,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 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) [2024-11-16 08:13:07,384 INFO L276 IsEmpty]: Start isEmpty. Operand 3356 states and 5560 transitions. [2024-11-16 08:13:07,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-16 08:13:07,386 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:13:07,386 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:13:07,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 08:13:07,386 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:13:07,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:13:07,387 INFO L85 PathProgramCache]: Analyzing trace with hash 94802756, now seen corresponding path program 1 times [2024-11-16 08:13:07,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:13:07,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850362406] [2024-11-16 08:13:07,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:13:07,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:13:07,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:13:07,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:13:07,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:13:07,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850362406] [2024-11-16 08:13:07,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850362406] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:13:07,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:13:07,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:13:07,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395746874] [2024-11-16 08:13:07,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:13:07,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:13:07,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:13:07,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:13:07,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:13:07,601 INFO L87 Difference]: Start difference. First operand 3356 states and 5560 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 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) [2024-11-16 08:13:07,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:13:07,746 INFO L93 Difference]: Finished difference Result 9619 states and 16091 transitions. [2024-11-16 08:13:07,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:13:07,747 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 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 121 [2024-11-16 08:13:07,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:13:07,773 INFO L225 Difference]: With dead ends: 9619 [2024-11-16 08:13:07,774 INFO L226 Difference]: Without dead ends: 6677 [2024-11-16 08:13:07,781 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:13:07,781 INFO L432 NwaCegarLoop]: 490 mSDtfsCounter, 437 mSDsluCounter, 1040 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 1530 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:13:07,782 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 1530 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:13:07,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6677 states. [2024-11-16 08:13:07,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6677 to 5019. [2024-11-16 08:13:07,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5019 states, 5018 states have (on average 1.6602231964926266) internal successors, (8331), 5018 states have internal predecessors, (8331), 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) [2024-11-16 08:13:08,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5019 states to 5019 states and 8331 transitions. [2024-11-16 08:13:08,017 INFO L78 Accepts]: Start accepts. Automaton has 5019 states and 8331 transitions. Word has length 121 [2024-11-16 08:13:08,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:13:08,017 INFO L471 AbstractCegarLoop]: Abstraction has 5019 states and 8331 transitions. [2024-11-16 08:13:08,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 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) [2024-11-16 08:13:08,018 INFO L276 IsEmpty]: Start isEmpty. Operand 5019 states and 8331 transitions. [2024-11-16 08:13:08,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-16 08:13:08,020 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:13:08,020 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:13:08,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 08:13:08,021 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:13:08,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:13:08,021 INFO L85 PathProgramCache]: Analyzing trace with hash 175784627, now seen corresponding path program 1 times [2024-11-16 08:13:08,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:13:08,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521667412] [2024-11-16 08:13:08,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:13:08,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:13:08,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:13:08,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:13:08,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:13:08,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521667412] [2024-11-16 08:13:08,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521667412] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:13:08,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:13:08,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:13:08,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625613246] [2024-11-16 08:13:08,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:13:08,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:13:08,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:13:08,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:13:08,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:13:08,152 INFO L87 Difference]: Start difference. First operand 5019 states and 8331 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 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) [2024-11-16 08:13:08,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:13:08,249 INFO L93 Difference]: Finished difference Result 9465 states and 15739 transitions. [2024-11-16 08:13:08,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:13:08,250 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 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 121 [2024-11-16 08:13:08,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:13:08,288 INFO L225 Difference]: With dead ends: 9465 [2024-11-16 08:13:08,289 INFO L226 Difference]: Without dead ends: 6874 [2024-11-16 08:13:08,295 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:13:08,295 INFO L432 NwaCegarLoop]: 545 mSDtfsCounter, 119 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 1003 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:13:08,296 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 1003 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:13:08,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6874 states. [2024-11-16 08:13:08,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6874 to 6871. [2024-11-16 08:13:08,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6871 states, 6870 states have (on average 1.6481804949053858) internal successors, (11323), 6870 states have internal predecessors, (11323), 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) [2024-11-16 08:13:08,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6871 states to 6871 states and 11323 transitions. [2024-11-16 08:13:08,514 INFO L78 Accepts]: Start accepts. Automaton has 6871 states and 11323 transitions. Word has length 121 [2024-11-16 08:13:08,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:13:08,514 INFO L471 AbstractCegarLoop]: Abstraction has 6871 states and 11323 transitions. [2024-11-16 08:13:08,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 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) [2024-11-16 08:13:08,514 INFO L276 IsEmpty]: Start isEmpty. Operand 6871 states and 11323 transitions. [2024-11-16 08:13:08,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-16 08:13:08,516 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:13:08,516 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:13:08,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 08:13:08,517 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:13:08,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:13:08,518 INFO L85 PathProgramCache]: Analyzing trace with hash -2119309217, now seen corresponding path program 1 times [2024-11-16 08:13:08,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:13:08,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453486578] [2024-11-16 08:13:08,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:13:08,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:13:08,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:13:08,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:13:08,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:13:08,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453486578] [2024-11-16 08:13:08,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453486578] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:13:08,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:13:08,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:13:08,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638356061] [2024-11-16 08:13:08,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:13:08,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:13:08,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:13:08,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:13:08,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:13:08,643 INFO L87 Difference]: Start difference. First operand 6871 states and 11323 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 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) [2024-11-16 08:13:08,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:13:08,775 INFO L93 Difference]: Finished difference Result 13195 states and 21785 transitions. [2024-11-16 08:13:08,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:13:08,776 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 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 121 [2024-11-16 08:13:08,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:13:08,841 INFO L225 Difference]: With dead ends: 13195 [2024-11-16 08:13:08,841 INFO L226 Difference]: Without dead ends: 9563 [2024-11-16 08:13:08,846 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:13:08,847 INFO L432 NwaCegarLoop]: 573 mSDtfsCounter, 126 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 1030 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:13:08,847 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 1030 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:13:08,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9563 states. [2024-11-16 08:13:09,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9563 to 9560. [2024-11-16 08:13:09,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9560 states, 9559 states have (on average 1.637200543989957) internal successors, (15650), 9559 states have internal predecessors, (15650), 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) [2024-11-16 08:13:09,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9560 states to 9560 states and 15650 transitions. [2024-11-16 08:13:09,063 INFO L78 Accepts]: Start accepts. Automaton has 9560 states and 15650 transitions. Word has length 121 [2024-11-16 08:13:09,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:13:09,063 INFO L471 AbstractCegarLoop]: Abstraction has 9560 states and 15650 transitions. [2024-11-16 08:13:09,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 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) [2024-11-16 08:13:09,064 INFO L276 IsEmpty]: Start isEmpty. Operand 9560 states and 15650 transitions. [2024-11-16 08:13:09,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-16 08:13:09,065 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:13:09,065 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:13:09,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 08:13:09,066 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:13:09,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:13:09,066 INFO L85 PathProgramCache]: Analyzing trace with hash 139512115, now seen corresponding path program 1 times [2024-11-16 08:13:09,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:13:09,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082145232] [2024-11-16 08:13:09,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:13:09,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:13:09,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:13:09,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:13:09,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:13:09,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082145232] [2024-11-16 08:13:09,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082145232] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:13:09,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:13:09,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:13:09,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99850719] [2024-11-16 08:13:09,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:13:09,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:13:09,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:13:09,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:13:09,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:13:09,179 INFO L87 Difference]: Start difference. First operand 9560 states and 15650 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 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) [2024-11-16 08:13:09,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:13:09,388 INFO L93 Difference]: Finished difference Result 21505 states and 35360 transitions. [2024-11-16 08:13:09,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:13:09,389 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 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 121 [2024-11-16 08:13:09,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:13:09,420 INFO L225 Difference]: With dead ends: 21505 [2024-11-16 08:13:09,420 INFO L226 Difference]: Without dead ends: 14751 [2024-11-16 08:13:09,432 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:13:09,433 INFO L432 NwaCegarLoop]: 592 mSDtfsCounter, 133 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:13:09,433 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 1048 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:13:09,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14751 states. [2024-11-16 08:13:09,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14751 to 14748. [2024-11-16 08:13:09,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14748 states, 14747 states have (on average 1.62555095951719) internal successors, (23972), 14747 states have internal predecessors, (23972), 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) [2024-11-16 08:13:09,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14748 states to 14748 states and 23972 transitions. [2024-11-16 08:13:09,879 INFO L78 Accepts]: Start accepts. Automaton has 14748 states and 23972 transitions. Word has length 121 [2024-11-16 08:13:09,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:13:09,879 INFO L471 AbstractCegarLoop]: Abstraction has 14748 states and 23972 transitions. [2024-11-16 08:13:09,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 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) [2024-11-16 08:13:09,881 INFO L276 IsEmpty]: Start isEmpty. Operand 14748 states and 23972 transitions. [2024-11-16 08:13:09,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-16 08:13:09,882 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:13:09,882 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:13:09,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 08:13:09,883 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:13:09,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:13:09,883 INFO L85 PathProgramCache]: Analyzing trace with hash 306316520, now seen corresponding path program 1 times [2024-11-16 08:13:09,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:13:09,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864897112] [2024-11-16 08:13:09,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:13:09,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:13:09,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:13:10,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:13:10,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:13:10,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864897112] [2024-11-16 08:13:10,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864897112] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:13:10,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:13:10,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:13:10,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487044793] [2024-11-16 08:13:10,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:13:10,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:13:10,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:13:10,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:13:10,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:13:10,093 INFO L87 Difference]: Start difference. First operand 14748 states and 23972 transitions. Second operand has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 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) [2024-11-16 08:13:10,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:13:10,554 INFO L93 Difference]: Finished difference Result 48462 states and 78953 transitions. [2024-11-16 08:13:10,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:13:10,555 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 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 122 [2024-11-16 08:13:10,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:13:10,623 INFO L225 Difference]: With dead ends: 48462 [2024-11-16 08:13:10,623 INFO L226 Difference]: Without dead ends: 33942 [2024-11-16 08:13:10,645 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:13:10,646 INFO L432 NwaCegarLoop]: 467 mSDtfsCounter, 435 mSDsluCounter, 1042 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 435 SdHoareTripleChecker+Valid, 1509 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:13:10,646 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [435 Valid, 1509 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:13:10,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33942 states. [2024-11-16 08:13:11,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33942 to 24255. [2024-11-16 08:13:11,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24255 states, 24254 states have (on average 1.6169703966356066) internal successors, (39218), 24254 states have internal predecessors, (39218), 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) [2024-11-16 08:13:11,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24255 states to 24255 states and 39218 transitions. [2024-11-16 08:13:11,352 INFO L78 Accepts]: Start accepts. Automaton has 24255 states and 39218 transitions. Word has length 122 [2024-11-16 08:13:11,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:13:11,352 INFO L471 AbstractCegarLoop]: Abstraction has 24255 states and 39218 transitions. [2024-11-16 08:13:11,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 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) [2024-11-16 08:13:11,353 INFO L276 IsEmpty]: Start isEmpty. Operand 24255 states and 39218 transitions. [2024-11-16 08:13:11,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-16 08:13:11,354 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:13:11,354 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:13:11,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 08:13:11,354 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:13:11,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:13:11,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1783949690, now seen corresponding path program 1 times [2024-11-16 08:13:11,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:13:11,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325225837] [2024-11-16 08:13:11,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:13:11,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:13:11,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:13:11,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:13:11,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:13:11,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325225837] [2024-11-16 08:13:11,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325225837] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:13:11,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:13:11,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:13:11,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78466459] [2024-11-16 08:13:11,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:13:11,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:13:11,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:13:11,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:13:11,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:13:11,643 INFO L87 Difference]: Start difference. First operand 24255 states and 39218 transitions. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 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) [2024-11-16 08:13:12,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:13:12,420 INFO L93 Difference]: Finished difference Result 79472 states and 128777 transitions. [2024-11-16 08:13:12,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:13:12,421 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 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 123 [2024-11-16 08:13:12,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:13:12,565 INFO L225 Difference]: With dead ends: 79472 [2024-11-16 08:13:12,566 INFO L226 Difference]: Without dead ends: 55445 [2024-11-16 08:13:12,602 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:13:12,603 INFO L432 NwaCegarLoop]: 467 mSDtfsCounter, 433 mSDsluCounter, 1044 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 433 SdHoareTripleChecker+Valid, 1511 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:13:12,604 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [433 Valid, 1511 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:13:12,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55445 states. [2024-11-16 08:13:13,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55445 to 39706. [2024-11-16 08:13:13,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39706 states, 39705 states have (on average 1.6083616672963104) internal successors, (63860), 39705 states have internal predecessors, (63860), 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) [2024-11-16 08:13:13,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39706 states to 39706 states and 63860 transitions. [2024-11-16 08:13:13,742 INFO L78 Accepts]: Start accepts. Automaton has 39706 states and 63860 transitions. Word has length 123 [2024-11-16 08:13:13,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:13:13,742 INFO L471 AbstractCegarLoop]: Abstraction has 39706 states and 63860 transitions. [2024-11-16 08:13:13,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 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) [2024-11-16 08:13:13,743 INFO L276 IsEmpty]: Start isEmpty. Operand 39706 states and 63860 transitions. [2024-11-16 08:13:13,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-16 08:13:13,744 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:13:13,744 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:13:13,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 08:13:13,745 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:13:13,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:13:13,745 INFO L85 PathProgramCache]: Analyzing trace with hash 2080016234, now seen corresponding path program 1 times [2024-11-16 08:13:13,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:13:13,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699762439] [2024-11-16 08:13:13,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:13:13,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:13:13,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:13:14,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:13:14,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:13:14,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699762439] [2024-11-16 08:13:14,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699762439] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:13:14,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:13:14,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:13:14,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213347999] [2024-11-16 08:13:14,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:13:14,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:13:14,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:13:14,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:13:14,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:13:14,115 INFO L87 Difference]: Start difference. First operand 39706 states and 63860 transitions. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 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) [2024-11-16 08:13:15,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:13:15,380 INFO L93 Difference]: Finished difference Result 128674 states and 207385 transitions. [2024-11-16 08:13:15,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:13:15,380 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 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 124 [2024-11-16 08:13:15,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:13:15,662 INFO L225 Difference]: With dead ends: 128674 [2024-11-16 08:13:15,662 INFO L226 Difference]: Without dead ends: 89196 [2024-11-16 08:13:15,721 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:13:15,722 INFO L432 NwaCegarLoop]: 468 mSDtfsCounter, 431 mSDsluCounter, 1046 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 1514 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:13:15,722 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [431 Valid, 1514 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:13:15,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89196 states. [2024-11-16 08:13:17,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89196 to 64225. [2024-11-16 08:13:17,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64225 states, 64224 states have (on average 1.59993148978575) internal successors, (102754), 64224 states have internal predecessors, (102754), 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) [2024-11-16 08:13:17,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64225 states to 64225 states and 102754 transitions. [2024-11-16 08:13:17,705 INFO L78 Accepts]: Start accepts. Automaton has 64225 states and 102754 transitions. Word has length 124 [2024-11-16 08:13:17,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:13:17,705 INFO L471 AbstractCegarLoop]: Abstraction has 64225 states and 102754 transitions. [2024-11-16 08:13:17,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 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) [2024-11-16 08:13:17,706 INFO L276 IsEmpty]: Start isEmpty. Operand 64225 states and 102754 transitions. [2024-11-16 08:13:17,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-16 08:13:17,707 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:13:17,707 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:13:17,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 08:13:17,708 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:13:17,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:13:17,708 INFO L85 PathProgramCache]: Analyzing trace with hash 2133860844, now seen corresponding path program 1 times [2024-11-16 08:13:17,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:13:17,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970871469] [2024-11-16 08:13:17,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:13:17,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:13:17,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:13:18,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:13:18,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:13:18,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970871469] [2024-11-16 08:13:18,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970871469] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:13:18,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:13:18,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:13:18,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360996252] [2024-11-16 08:13:18,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:13:18,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 08:13:18,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:13:18,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 08:13:18,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-16 08:13:18,089 INFO L87 Difference]: Start difference. First operand 64225 states and 102754 transitions. Second operand has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 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) [2024-11-16 08:13:19,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:13:19,282 INFO L93 Difference]: Finished difference Result 128225 states and 205153 transitions. [2024-11-16 08:13:19,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 08:13:19,283 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 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 126 [2024-11-16 08:13:19,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:13:19,446 INFO L225 Difference]: With dead ends: 128225 [2024-11-16 08:13:19,447 INFO L226 Difference]: Without dead ends: 64228 [2024-11-16 08:13:19,517 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-16 08:13:19,518 INFO L432 NwaCegarLoop]: 472 mSDtfsCounter, 225 mSDsluCounter, 1326 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 1798 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:13:19,518 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 1798 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:13:19,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64228 states. [2024-11-16 08:13:20,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64228 to 64225. [2024-11-16 08:13:20,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64225 states, 64224 states have (on average 1.5901999252615844) internal successors, (102129), 64224 states have internal predecessors, (102129), 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) [2024-11-16 08:13:20,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64225 states to 64225 states and 102129 transitions. [2024-11-16 08:13:20,921 INFO L78 Accepts]: Start accepts. Automaton has 64225 states and 102129 transitions. Word has length 126 [2024-11-16 08:13:20,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:13:20,922 INFO L471 AbstractCegarLoop]: Abstraction has 64225 states and 102129 transitions. [2024-11-16 08:13:20,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 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) [2024-11-16 08:13:20,922 INFO L276 IsEmpty]: Start isEmpty. Operand 64225 states and 102129 transitions. [2024-11-16 08:13:20,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-16 08:13:20,923 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:13:20,924 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:13:20,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 08:13:20,924 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:13:20,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:13:20,925 INFO L85 PathProgramCache]: Analyzing trace with hash 332859055, now seen corresponding path program 1 times [2024-11-16 08:13:20,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:13:20,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845023568] [2024-11-16 08:13:20,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:13:20,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:13:20,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:13:21,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:13:21,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:13:21,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845023568] [2024-11-16 08:13:21,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845023568] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:13:21,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:13:21,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:13:21,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980177691] [2024-11-16 08:13:21,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:13:21,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 08:13:21,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:13:21,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 08:13:21,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-16 08:13:21,508 INFO L87 Difference]: Start difference. First operand 64225 states and 102129 transitions. Second operand has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 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) [2024-11-16 08:13:23,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:13:23,158 INFO L93 Difference]: Finished difference Result 187703 states and 298997 transitions. [2024-11-16 08:13:23,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 08:13:23,158 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 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 131 [2024-11-16 08:13:23,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:13:23,428 INFO L225 Difference]: With dead ends: 187703 [2024-11-16 08:13:23,428 INFO L226 Difference]: Without dead ends: 123706 [2024-11-16 08:13:23,489 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-16 08:13:23,490 INFO L432 NwaCegarLoop]: 465 mSDtfsCounter, 324 mSDsluCounter, 1344 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 1809 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:13:23,490 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 1809 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:13:23,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123706 states. [2024-11-16 08:13:25,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123706 to 123703. [2024-11-16 08:13:25,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123703 states, 123702 states have (on average 1.5780343082569401) internal successors, (195206), 123702 states have internal predecessors, (195206), 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) [2024-11-16 08:13:26,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123703 states to 123703 states and 195206 transitions. [2024-11-16 08:13:26,096 INFO L78 Accepts]: Start accepts. Automaton has 123703 states and 195206 transitions. Word has length 131 [2024-11-16 08:13:26,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:13:26,097 INFO L471 AbstractCegarLoop]: Abstraction has 123703 states and 195206 transitions. [2024-11-16 08:13:26,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 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) [2024-11-16 08:13:26,097 INFO L276 IsEmpty]: Start isEmpty. Operand 123703 states and 195206 transitions. [2024-11-16 08:13:26,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-16 08:13:26,098 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:13:26,099 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:13:26,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 08:13:26,099 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:13:26,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:13:26,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1816529646, now seen corresponding path program 1 times [2024-11-16 08:13:26,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:13:26,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602915713] [2024-11-16 08:13:26,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:13:26,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:13:26,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:13:27,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:13:27,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:13:27,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602915713] [2024-11-16 08:13:27,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602915713] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:13:27,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:13:27,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 08:13:27,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441150141] [2024-11-16 08:13:27,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:13:27,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 08:13:27,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:13:27,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 08:13:27,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 08:13:27,110 INFO L87 Difference]: Start difference. First operand 123703 states and 195206 transitions. Second operand has 8 states, 8 states have (on average 16.625) internal successors, (133), 8 states have internal predecessors, (133), 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) [2024-11-16 08:13:28,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:13:28,920 INFO L93 Difference]: Finished difference Result 129514 states and 202952 transitions. [2024-11-16 08:13:28,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 08:13:28,921 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.625) internal successors, (133), 8 states have internal predecessors, (133), 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 133 [2024-11-16 08:13:28,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:13:29,116 INFO L225 Difference]: With dead ends: 129514 [2024-11-16 08:13:29,116 INFO L226 Difference]: Without dead ends: 129511 [2024-11-16 08:13:29,139 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 08:13:29,140 INFO L432 NwaCegarLoop]: 472 mSDtfsCounter, 0 mSDsluCounter, 2813 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3285 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:13:29,140 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3285 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:13:29,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129511 states. [2024-11-16 08:13:31,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129511 to 129511. [2024-11-16 08:13:31,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129511 states, 129510 states have (on average 1.5519033279283454) internal successors, (200987), 129510 states have internal predecessors, (200987), 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) [2024-11-16 08:13:31,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129511 states to 129511 states and 200987 transitions. [2024-11-16 08:13:31,456 INFO L78 Accepts]: Start accepts. Automaton has 129511 states and 200987 transitions. Word has length 133 [2024-11-16 08:13:31,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:13:31,457 INFO L471 AbstractCegarLoop]: Abstraction has 129511 states and 200987 transitions. [2024-11-16 08:13:31,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.625) internal successors, (133), 8 states have internal predecessors, (133), 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) [2024-11-16 08:13:31,457 INFO L276 IsEmpty]: Start isEmpty. Operand 129511 states and 200987 transitions. [2024-11-16 08:13:31,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-16 08:13:31,465 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:13:31,465 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:13:31,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 08:13:31,466 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:13:31,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:13:31,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1541827723, now seen corresponding path program 1 times [2024-11-16 08:13:31,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:13:31,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442436416] [2024-11-16 08:13:31,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:13:31,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:13:31,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:13:31,611 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-16 08:13:31,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:13:31,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442436416] [2024-11-16 08:13:31,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442436416] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:13:31,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:13:31,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:13:31,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331503288] [2024-11-16 08:13:31,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:13:31,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:13:31,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:13:31,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:13:31,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:13:31,615 INFO L87 Difference]: Start difference. First operand 129511 states and 200987 transitions. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 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) [2024-11-16 08:13:34,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:13:34,807 INFO L93 Difference]: Finished difference Result 387510 states and 600946 transitions. [2024-11-16 08:13:34,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:13:34,808 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 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 169 [2024-11-16 08:13:34,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:13:35,306 INFO L225 Difference]: With dead ends: 387510 [2024-11-16 08:13:35,306 INFO L226 Difference]: Without dead ends: 258060 [2024-11-16 08:13:35,382 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:13:35,383 INFO L432 NwaCegarLoop]: 745 mSDtfsCounter, 348 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 1207 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:13:35,383 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [348 Valid, 1207 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:13:35,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258060 states. [2024-11-16 08:13:40,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258060 to 258057. [2024-11-16 08:13:40,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258057 states, 258056 states have (on average 1.5415258703537216) internal successors, (397800), 258056 states have internal predecessors, (397800), 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) [2024-11-16 08:13:41,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258057 states to 258057 states and 397800 transitions. [2024-11-16 08:13:41,533 INFO L78 Accepts]: Start accepts. Automaton has 258057 states and 397800 transitions. Word has length 169 [2024-11-16 08:13:41,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:13:41,534 INFO L471 AbstractCegarLoop]: Abstraction has 258057 states and 397800 transitions. [2024-11-16 08:13:41,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 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) [2024-11-16 08:13:41,534 INFO L276 IsEmpty]: Start isEmpty. Operand 258057 states and 397800 transitions. [2024-11-16 08:13:41,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-16 08:13:41,548 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:13:41,548 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:13:41,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 08:13:41,549 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:13:41,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:13:41,550 INFO L85 PathProgramCache]: Analyzing trace with hash -679364791, now seen corresponding path program 1 times [2024-11-16 08:13:41,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:13:41,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519333388] [2024-11-16 08:13:41,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:13:41,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:13:41,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:13:41,712 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-16 08:13:41,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:13:41,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519333388] [2024-11-16 08:13:41,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519333388] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:13:41,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:13:41,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:13:41,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925465854] [2024-11-16 08:13:41,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:13:41,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:13:41,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:13:41,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:13:41,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:13:41,714 INFO L87 Difference]: Start difference. First operand 258057 states and 397800 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 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) [2024-11-16 08:13:46,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:13:46,944 INFO L93 Difference]: Finished difference Result 772176 states and 1189457 transitions. [2024-11-16 08:13:46,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:13:46,945 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 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 169 [2024-11-16 08:13:46,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:13:48,159 INFO L225 Difference]: With dead ends: 772176 [2024-11-16 08:13:48,159 INFO L226 Difference]: Without dead ends: 514240 [2024-11-16 08:13:48,936 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:13:48,941 INFO L432 NwaCegarLoop]: 756 mSDtfsCounter, 360 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 1218 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:13:48,942 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 1218 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:13:49,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514240 states.