./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n5_w16_d64_e0.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n5_w16_d64_e0.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash eaecbd2b00198626b31f3b7c67d0aafe744fc283c09b33497ad29b2c3fc75ef2 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 00:27:07,720 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 00:27:07,791 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-20 00:27:07,796 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 00:27:07,797 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 00:27:07,824 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 00:27:07,825 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 00:27:07,825 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 00:27:07,826 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 00:27:07,827 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 00:27:07,827 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 00:27:07,827 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 00:27:07,828 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 00:27:07,829 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 00:27:07,829 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 00:27:07,830 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 00:27:07,830 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 00:27:07,832 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 00:27:07,832 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 00:27:07,832 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 00:27:07,832 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 00:27:07,836 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 00:27:07,836 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 00:27:07,836 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 00:27:07,836 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 00:27:07,837 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 00:27:07,837 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 00:27:07,837 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 00:27:07,837 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 00:27:07,837 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 00:27:07,838 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 00:27:07,838 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 00:27:07,838 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 00:27:07,838 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 00:27:07,838 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 00:27:07,838 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 00:27:07,839 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 00:27:07,839 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 00:27:07,840 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 00:27:07,841 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eaecbd2b00198626b31f3b7c67d0aafe744fc283c09b33497ad29b2c3fc75ef2 [2024-11-20 00:27:08,147 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 00:27:08,171 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 00:27:08,174 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 00:27:08,175 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 00:27:08,176 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 00:27:08,177 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n5_w16_d64_e0.c [2024-11-20 00:27:09,545 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 00:27:10,093 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 00:27:10,093 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n5_w16_d64_e0.c [2024-11-20 00:27:10,149 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0ff29aee/9473861480244bd483d160f482ad8e51/FLAG7e18c073c [2024-11-20 00:27:10,624 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0ff29aee/9473861480244bd483d160f482ad8e51 [2024-11-20 00:27:10,627 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 00:27:10,629 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 00:27:10,631 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 00:27:10,632 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 00:27:10,637 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 00:27:10,638 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:27:10" (1/1) ... [2024-11-20 00:27:10,641 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@153caadc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:27:10, skipping insertion in model container [2024-11-20 00:27:10,641 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:27:10" (1/1) ... [2024-11-20 00:27:10,759 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 00:27:11,085 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/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n5_w16_d64_e0.c[1325,1338] [2024-11-20 00:27:12,151 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 00:27:12,165 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 00:27:12,177 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/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n5_w16_d64_e0.c[1325,1338] [2024-11-20 00:27:12,975 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 00:27:13,014 INFO L204 MainTranslator]: Completed translation [2024-11-20 00:27:13,019 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:27:13 WrapperNode [2024-11-20 00:27:13,019 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 00:27:13,021 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 00:27:13,021 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 00:27:13,021 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 00:27:13,038 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:27:13" (1/1) ... [2024-11-20 00:27:13,372 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:27:13" (1/1) ... [2024-11-20 00:27:16,397 INFO L138 Inliner]: procedures = 18, calls = 24, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 24076 [2024-11-20 00:27:16,398 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 00:27:16,399 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 00:27:16,399 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 00:27:16,399 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 00:27:16,411 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:27:13" (1/1) ... [2024-11-20 00:27:16,412 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:27:13" (1/1) ... [2024-11-20 00:27:16,979 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:27:13" (1/1) ... [2024-11-20 00:27:17,397 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-20 00:27:17,397 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:27:13" (1/1) ... [2024-11-20 00:27:17,397 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:27:13" (1/1) ... [2024-11-20 00:27:18,152 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:27:13" (1/1) ... [2024-11-20 00:27:18,245 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:27:13" (1/1) ... [2024-11-20 00:27:18,391 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:27:13" (1/1) ... [2024-11-20 00:27:18,626 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:27:13" (1/1) ... [2024-11-20 00:27:19,076 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 00:27:19,077 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 00:27:19,077 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 00:27:19,077 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 00:27:19,078 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:27:13" (1/1) ... [2024-11-20 00:27:19,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 00:27:19,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 00:27:19,115 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 00:27:19,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 00:27:19,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 00:27:19,166 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 00:27:19,166 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 00:27:19,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 00:27:19,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 00:27:19,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 00:27:20,534 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 00:27:20,537 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 00:28:17,819 INFO L? ?]: Removed 14058 outVars from TransFormulas that were not future-live. [2024-11-20 00:28:17,820 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 00:28:17,932 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 00:28:17,934 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-20 00:28:17,935 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:28:17 BoogieIcfgContainer [2024-11-20 00:28:17,936 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 00:28:17,938 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 00:28:17,939 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 00:28:17,942 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 00:28:17,943 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:27:10" (1/3) ... [2024-11-20 00:28:17,943 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d93aa2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:28:17, skipping insertion in model container [2024-11-20 00:28:17,944 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:27:13" (2/3) ... [2024-11-20 00:28:17,944 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d93aa2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:28:17, skipping insertion in model container [2024-11-20 00:28:17,944 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:28:17" (3/3) ... [2024-11-20 00:28:17,946 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.arbitrated_top_n5_w16_d64_e0.c [2024-11-20 00:28:17,961 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 00:28:17,962 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 00:28:18,120 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 00:28:18,126 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;@4a1a1f0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 00:28:18,126 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 00:28:18,151 INFO L276 IsEmpty]: Start isEmpty. Operand has 6534 states, 6515 states have (on average 1.498541826554106) internal successors, (9763), 6516 states have internal predecessors, (9763), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-20 00:28:18,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1590 [2024-11-20 00:28:18,239 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:28:18,241 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:28:18,242 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:28:18,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:28:18,248 INFO L85 PathProgramCache]: Analyzing trace with hash -203509148, now seen corresponding path program 1 times [2024-11-20 00:28:18,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:28:18,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523630046] [2024-11-20 00:28:18,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:28:18,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:28:19,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:28:20,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 705 [2024-11-20 00:28:20,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:28:20,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 719 [2024-11-20 00:28:20,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:28:20,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 733 [2024-11-20 00:28:20,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:28:20,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 747 [2024-11-20 00:28:20,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:28:20,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 761 [2024-11-20 00:28:20,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:28:20,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 779 [2024-11-20 00:28:20,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:28:20,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 797 [2024-11-20 00:28:20,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:28:20,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 813 [2024-11-20 00:28:20,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:28:20,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 831 [2024-11-20 00:28:20,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:28:20,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 849 [2024-11-20 00:28:20,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:28:20,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 859 [2024-11-20 00:28:20,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:28:20,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 871 [2024-11-20 00:28:20,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:28:20,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 883 [2024-11-20 00:28:20,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:28:20,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 895 [2024-11-20 00:28:20,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:28:20,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 907 [2024-11-20 00:28:20,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:28:20,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 919 [2024-11-20 00:28:20,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:28:20,688 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-20 00:28:20,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:28:20,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523630046] [2024-11-20 00:28:20,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523630046] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:28:20,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:28:20,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 00:28:20,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378236880] [2024-11-20 00:28:20,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:28:20,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-20 00:28:20,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:28:20,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-20 00:28:20,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 00:28:20,749 INFO L87 Difference]: Start difference. First operand has 6534 states, 6515 states have (on average 1.498541826554106) internal successors, (9763), 6516 states have internal predecessors, (9763), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 756.0) internal successors, (1512), 2 states have internal predecessors, (1512), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-20 00:28:20,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:28:20,944 INFO L93 Difference]: Finished difference Result 11683 states and 17532 transitions. [2024-11-20 00:28:20,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-20 00:28:20,947 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 756.0) internal successors, (1512), 2 states have internal predecessors, (1512), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 1589 [2024-11-20 00:28:20,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:28:20,999 INFO L225 Difference]: With dead ends: 11683 [2024-11-20 00:28:20,999 INFO L226 Difference]: Without dead ends: 6531 [2024-11-20 00:28:21,016 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 00:28:21,021 INFO L432 NwaCegarLoop]: 9790 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, 9790 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 00:28:21,022 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9790 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 00:28:21,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6531 states. [2024-11-20 00:28:21,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6531 to 6531. [2024-11-20 00:28:21,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6531 states, 6513 states have (on average 1.4982343006295102) internal successors, (9758), 6513 states have internal predecessors, (9758), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-20 00:28:21,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6531 states to 6531 states and 9790 transitions. [2024-11-20 00:28:21,239 INFO L78 Accepts]: Start accepts. Automaton has 6531 states and 9790 transitions. Word has length 1589 [2024-11-20 00:28:21,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:28:21,242 INFO L471 AbstractCegarLoop]: Abstraction has 6531 states and 9790 transitions. [2024-11-20 00:28:21,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 756.0) internal successors, (1512), 2 states have internal predecessors, (1512), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-20 00:28:21,244 INFO L276 IsEmpty]: Start isEmpty. Operand 6531 states and 9790 transitions. [2024-11-20 00:28:21,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1590 [2024-11-20 00:28:21,320 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:28:21,321 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:28:21,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 00:28:21,321 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:28:21,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:28:21,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1292810428, now seen corresponding path program 1 times [2024-11-20 00:28:21,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:28:21,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164605587] [2024-11-20 00:28:21,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:28:21,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:28:24,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat