./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem01_label42.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/eca-rers2012/Problem01_label42.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 c7dfdd48559e277969e6cd247a38d61c593012cd8d98b191a78a0b1ef65f4128 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 03:05:32,665 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 03:05:32,738 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 03:05:32,742 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 03:05:32,742 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 03:05:32,766 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 03:05:32,767 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 03:05:32,768 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 03:05:32,768 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 03:05:32,770 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 03:05:32,770 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 03:05:32,770 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 03:05:32,771 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 03:05:32,772 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 03:05:32,773 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 03:05:32,773 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 03:05:32,773 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 03:05:32,773 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 03:05:32,776 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 03:05:32,776 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 03:05:32,776 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 03:05:32,777 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 03:05:32,777 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 03:05:32,777 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 03:05:32,777 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 03:05:32,778 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 03:05:32,778 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 03:05:32,778 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 03:05:32,778 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 03:05:32,778 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 03:05:32,779 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 03:05:32,779 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 03:05:32,779 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 03:05:32,790 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 03:05:32,790 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 03:05:32,790 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 03:05:32,790 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 03:05:32,791 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 03:05:32,791 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 03:05:32,791 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 03:05:32,791 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 03:05:32,792 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 03:05:32,792 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7dfdd48559e277969e6cd247a38d61c593012cd8d98b191a78a0b1ef65f4128 [2024-11-16 03:05:32,972 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 03:05:33,006 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 03:05:33,011 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 03:05:33,012 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 03:05:33,013 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 03:05:33,017 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem01_label42.c [2024-11-16 03:05:34,457 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 03:05:34,733 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 03:05:34,733 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem01_label42.c [2024-11-16 03:05:34,743 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f25e9be4c/a710fad8db7948dc8616a427e19d6bf8/FLAGf2ade4ad3 [2024-11-16 03:05:35,027 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f25e9be4c/a710fad8db7948dc8616a427e19d6bf8 [2024-11-16 03:05:35,029 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 03:05:35,030 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 03:05:35,032 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 03:05:35,032 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 03:05:35,036 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 03:05:35,037 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:05:35" (1/1) ... [2024-11-16 03:05:35,037 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b35ed5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:05:35, skipping insertion in model container [2024-11-16 03:05:35,038 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:05:35" (1/1) ... [2024-11-16 03:05:35,066 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 03:05:35,419 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/eca-rers2012/Problem01_label42.c[19849,19862] [2024-11-16 03:05:35,476 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 03:05:35,495 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 03:05:35,633 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/eca-rers2012/Problem01_label42.c[19849,19862] [2024-11-16 03:05:35,645 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 03:05:35,671 INFO L204 MainTranslator]: Completed translation [2024-11-16 03:05:35,673 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:05:35 WrapperNode [2024-11-16 03:05:35,673 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 03:05:35,677 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 03:05:35,677 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 03:05:35,677 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 03:05:35,683 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:05:35" (1/1) ... [2024-11-16 03:05:35,708 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:05:35" (1/1) ... [2024-11-16 03:05:35,771 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 657 [2024-11-16 03:05:35,779 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 03:05:35,779 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 03:05:35,779 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 03:05:35,779 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 03:05:35,794 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:05:35" (1/1) ... [2024-11-16 03:05:35,794 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:05:35" (1/1) ... [2024-11-16 03:05:35,797 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:05:35" (1/1) ... [2024-11-16 03:05:35,813 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 03:05:35,813 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:05:35" (1/1) ... [2024-11-16 03:05:35,814 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:05:35" (1/1) ... [2024-11-16 03:05:35,827 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:05:35" (1/1) ... [2024-11-16 03:05:35,828 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:05:35" (1/1) ... [2024-11-16 03:05:35,830 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:05:35" (1/1) ... [2024-11-16 03:05:35,832 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:05:35" (1/1) ... [2024-11-16 03:05:35,836 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 03:05:35,837 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 03:05:35,837 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 03:05:35,837 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 03:05:35,838 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:05:35" (1/1) ... [2024-11-16 03:05:35,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 03:05:35,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:05:35,868 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 03:05:35,876 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 03:05:35,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 03:05:35,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 03:05:35,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 03:05:35,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 03:05:35,988 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 03:05:35,990 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 03:05:36,783 INFO L? ?]: Removed 75 outVars from TransFormulas that were not future-live. [2024-11-16 03:05:36,784 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 03:05:36,802 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 03:05:36,803 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 03:05:36,803 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:05:36 BoogieIcfgContainer [2024-11-16 03:05:36,804 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 03:05:36,805 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 03:05:36,805 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 03:05:36,808 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 03:05:36,808 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 03:05:35" (1/3) ... [2024-11-16 03:05:36,809 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@778ea852 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:05:36, skipping insertion in model container [2024-11-16 03:05:36,809 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:05:35" (2/3) ... [2024-11-16 03:05:36,809 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@778ea852 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:05:36, skipping insertion in model container [2024-11-16 03:05:36,810 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:05:36" (3/3) ... [2024-11-16 03:05:36,811 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label42.c [2024-11-16 03:05:36,823 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 03:05:36,823 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 03:05:36,877 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 03:05:36,884 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;@19701b2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 03:05:36,884 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 03:05:36,887 INFO L276 IsEmpty]: Start isEmpty. Operand has 201 states, 199 states have (on average 1.6582914572864322) internal successors, (330), 200 states have internal predecessors, (330), 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 03:05:36,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-16 03:05:36,901 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:05:36,902 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 03:05:36,903 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:05:36,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:05:36,908 INFO L85 PathProgramCache]: Analyzing trace with hash -559876732, now seen corresponding path program 1 times [2024-11-16 03:05:36,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:05:36,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433178208] [2024-11-16 03:05:36,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:05:36,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:05:37,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:05:37,755 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 03:05:37,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:05:37,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433178208] [2024-11-16 03:05:37,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433178208] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:05:37,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:05:37,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 03:05:37,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414897064] [2024-11-16 03:05:37,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:05:37,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 03:05:37,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:05:37,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 03:05:37,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:05:37,789 INFO L87 Difference]: Start difference. First operand has 201 states, 199 states have (on average 1.6582914572864322) internal successors, (330), 200 states have internal predecessors, (330), 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 5 states, 5 states have (on average 23.4) internal successors, (117), 4 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 03:05:38,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:05:38,721 INFO L93 Difference]: Finished difference Result 669 states and 1185 transitions. [2024-11-16 03:05:38,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 03:05:38,723 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 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 03:05:38,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:05:38,732 INFO L225 Difference]: With dead ends: 669 [2024-11-16 03:05:38,732 INFO L226 Difference]: Without dead ends: 401 [2024-11-16 03:05:38,735 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-16 03:05:38,737 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 355 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 241 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 1140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 241 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 03:05:38,738 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 85 Invalid, 1140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [241 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 03:05:38,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2024-11-16 03:05:38,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 401. [2024-11-16 03:05:38,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 400 states have (on average 1.3025) internal successors, (521), 400 states have internal predecessors, (521), 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 03:05:38,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 521 transitions. [2024-11-16 03:05:38,805 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 521 transitions. Word has length 117 [2024-11-16 03:05:38,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:05:38,806 INFO L471 AbstractCegarLoop]: Abstraction has 401 states and 521 transitions. [2024-11-16 03:05:38,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 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 03:05:38,806 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 521 transitions. [2024-11-16 03:05:38,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-16 03:05:38,812 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:05:38,812 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:05:38,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 03:05:38,812 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:05:38,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:05:38,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1649960239, now seen corresponding path program 1 times [2024-11-16 03:05:38,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:05:38,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51021173] [2024-11-16 03:05:38,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:05:38,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:05:38,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:05:39,209 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:05:39,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:05:39,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51021173] [2024-11-16 03:05:39,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51021173] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:05:39,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:05:39,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:05:39,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159397563] [2024-11-16 03:05:39,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:05:39,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:05:39,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:05:39,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:05:39,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:05:39,213 INFO L87 Difference]: Start difference. First operand 401 states and 521 transitions. Second operand has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 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 03:05:39,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:05:39,734 INFO L93 Difference]: Finished difference Result 1028 states and 1443 transitions. [2024-11-16 03:05:39,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:05:39,734 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 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 125 [2024-11-16 03:05:39,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:05:39,736 INFO L225 Difference]: With dead ends: 1028 [2024-11-16 03:05:39,736 INFO L226 Difference]: Without dead ends: 665 [2024-11-16 03:05:39,738 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:05:39,738 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 128 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:05:39,739 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 87 Invalid, 698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 03:05:39,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2024-11-16 03:05:39,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 401. [2024-11-16 03:05:39,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 400 states have (on average 1.195) internal successors, (478), 400 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 03:05:39,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 478 transitions. [2024-11-16 03:05:39,751 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 478 transitions. Word has length 125 [2024-11-16 03:05:39,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:05:39,751 INFO L471 AbstractCegarLoop]: Abstraction has 401 states and 478 transitions. [2024-11-16 03:05:39,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 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 03:05:39,752 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 478 transitions. [2024-11-16 03:05:39,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-16 03:05:39,753 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:05:39,753 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-16 03:05:39,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 03:05:39,754 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:05:39,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:05:39,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1836888558, now seen corresponding path program 1 times [2024-11-16 03:05:39,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:05:39,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675427221] [2024-11-16 03:05:39,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:05:39,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:05:39,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:05:39,941 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:05:39,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:05:39,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675427221] [2024-11-16 03:05:39,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675427221] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:05:39,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:05:39,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:05:39,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581120336] [2024-11-16 03:05:39,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:05:39,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:05:39,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:05:39,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:05:39,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:05:39,947 INFO L87 Difference]: Start difference. First operand 401 states and 478 transitions. Second operand has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 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 03:05:40,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:05:40,375 INFO L93 Difference]: Finished difference Result 1064 states and 1293 transitions. [2024-11-16 03:05:40,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:05:40,376 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 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 134 [2024-11-16 03:05:40,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:05:40,377 INFO L225 Difference]: With dead ends: 1064 [2024-11-16 03:05:40,378 INFO L226 Difference]: Without dead ends: 665 [2024-11-16 03:05:40,378 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:05:40,379 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 385 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 03:05:40,379 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 35 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 03:05:40,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2024-11-16 03:05:40,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 665. [2024-11-16 03:05:40,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 664 states have (on average 1.1912650602409638) internal successors, (791), 664 states have internal predecessors, (791), 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 03:05:40,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 791 transitions. [2024-11-16 03:05:40,392 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 791 transitions. Word has length 134 [2024-11-16 03:05:40,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:05:40,392 INFO L471 AbstractCegarLoop]: Abstraction has 665 states and 791 transitions. [2024-11-16 03:05:40,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 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 03:05:40,392 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 791 transitions. [2024-11-16 03:05:40,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-16 03:05:40,394 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:05:40,394 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2024-11-16 03:05:40,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 03:05:40,394 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:05:40,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:05:40,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1669649662, now seen corresponding path program 1 times [2024-11-16 03:05:40,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:05:40,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971656144] [2024-11-16 03:05:40,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:05:40,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:05:40,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:05:40,523 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 03:05:40,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:05:40,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971656144] [2024-11-16 03:05:40,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971656144] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:05:40,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:05:40,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:05:40,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150656381] [2024-11-16 03:05:40,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:05:40,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:05:40,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:05:40,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:05:40,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:05:40,526 INFO L87 Difference]: Start difference. First operand 665 states and 791 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 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 03:05:40,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:05:40,961 INFO L93 Difference]: Finished difference Result 1856 states and 2198 transitions. [2024-11-16 03:05:40,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:05:40,962 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 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 144 [2024-11-16 03:05:40,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:05:40,965 INFO L225 Difference]: With dead ends: 1856 [2024-11-16 03:05:40,968 INFO L226 Difference]: Without dead ends: 1193 [2024-11-16 03:05:40,969 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 03:05:40,970 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 133 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 03:05:40,970 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 31 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 03:05:40,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1193 states. [2024-11-16 03:05:40,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1193 to 1061. [2024-11-16 03:05:40,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1061 states, 1060 states have (on average 1.1981132075471699) internal successors, (1270), 1060 states have internal predecessors, (1270), 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 03:05:40,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1061 states to 1061 states and 1270 transitions. [2024-11-16 03:05:40,999 INFO L78 Accepts]: Start accepts. Automaton has 1061 states and 1270 transitions. Word has length 144 [2024-11-16 03:05:40,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:05:40,999 INFO L471 AbstractCegarLoop]: Abstraction has 1061 states and 1270 transitions. [2024-11-16 03:05:40,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 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 03:05:41,003 INFO L276 IsEmpty]: Start isEmpty. Operand 1061 states and 1270 transitions. [2024-11-16 03:05:41,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-16 03:05:41,005 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:05:41,005 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-16 03:05:41,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 03:05:41,005 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:05:41,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:05:41,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1164234669, now seen corresponding path program 1 times [2024-11-16 03:05:41,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:05:41,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929184585] [2024-11-16 03:05:41,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:05:41,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:05:41,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:05:41,317 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 03:05:41,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:05:41,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929184585] [2024-11-16 03:05:41,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929184585] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:05:41,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:05:41,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:05:41,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839448044] [2024-11-16 03:05:41,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:05:41,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:05:41,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:05:41,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:05:41,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:05:41,320 INFO L87 Difference]: Start difference. First operand 1061 states and 1270 transitions. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 3 states have internal predecessors, (139), 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 03:05:41,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:05:41,772 INFO L93 Difference]: Finished difference Result 2516 states and 2984 transitions. [2024-11-16 03:05:41,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:05:41,772 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 3 states have internal predecessors, (139), 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 150 [2024-11-16 03:05:41,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:05:41,776 INFO L225 Difference]: With dead ends: 2516 [2024-11-16 03:05:41,776 INFO L226 Difference]: Without dead ends: 1457 [2024-11-16 03:05:41,777 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:05:41,778 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 254 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 03:05:41,778 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 51 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 630 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 03:05:41,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1457 states. [2024-11-16 03:05:41,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1457 to 1325. [2024-11-16 03:05:41,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1325 states, 1324 states have (on average 1.1759818731117824) internal successors, (1557), 1324 states have internal predecessors, (1557), 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 03:05:41,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1325 states to 1325 states and 1557 transitions. [2024-11-16 03:05:41,794 INFO L78 Accepts]: Start accepts. Automaton has 1325 states and 1557 transitions. Word has length 150 [2024-11-16 03:05:41,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:05:41,795 INFO L471 AbstractCegarLoop]: Abstraction has 1325 states and 1557 transitions. [2024-11-16 03:05:41,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 3 states have internal predecessors, (139), 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 03:05:41,795 INFO L276 IsEmpty]: Start isEmpty. Operand 1325 states and 1557 transitions. [2024-11-16 03:05:41,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-16 03:05:41,797 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:05:41,797 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2024-11-16 03:05:41,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 03:05:41,797 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:05:41,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:05:41,798 INFO L85 PathProgramCache]: Analyzing trace with hash 673341391, now seen corresponding path program 1 times [2024-11-16 03:05:41,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:05:41,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337332611] [2024-11-16 03:05:41,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:05:41,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:05:41,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:05:41,970 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:05:41,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:05:41,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337332611] [2024-11-16 03:05:41,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337332611] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:05:41,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:05:41,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:05:41,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714943482] [2024-11-16 03:05:41,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:05:41,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:05:41,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:05:41,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:05:41,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:05:41,973 INFO L87 Difference]: Start difference. First operand 1325 states and 1557 transitions. Second operand has 4 states, 4 states have (on average 41.75) internal successors, (167), 3 states have internal predecessors, (167), 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 03:05:42,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:05:42,439 INFO L93 Difference]: Finished difference Result 3440 states and 4114 transitions. [2024-11-16 03:05:42,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:05:42,440 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 3 states have internal predecessors, (167), 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 167 [2024-11-16 03:05:42,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:05:42,445 INFO L225 Difference]: With dead ends: 3440 [2024-11-16 03:05:42,445 INFO L226 Difference]: Without dead ends: 2117 [2024-11-16 03:05:42,446 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:05:42,447 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 220 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 03:05:42,447 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 50 Invalid, 686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 03:05:42,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2117 states. [2024-11-16 03:05:42,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2117 to 1721. [2024-11-16 03:05:42,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1721 states, 1720 states have (on average 1.1546511627906977) internal successors, (1986), 1720 states have internal predecessors, (1986), 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 03:05:42,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1721 states to 1721 states and 1986 transitions. [2024-11-16 03:05:42,466 INFO L78 Accepts]: Start accepts. Automaton has 1721 states and 1986 transitions. Word has length 167 [2024-11-16 03:05:42,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:05:42,466 INFO L471 AbstractCegarLoop]: Abstraction has 1721 states and 1986 transitions. [2024-11-16 03:05:42,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 3 states have internal predecessors, (167), 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 03:05:42,467 INFO L276 IsEmpty]: Start isEmpty. Operand 1721 states and 1986 transitions. [2024-11-16 03:05:42,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2024-11-16 03:05:42,469 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:05:42,470 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-16 03:05:42,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 03:05:42,470 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:05:42,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:05:42,470 INFO L85 PathProgramCache]: Analyzing trace with hash -877978099, now seen corresponding path program 1 times [2024-11-16 03:05:42,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:05:42,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740037650] [2024-11-16 03:05:42,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:05:42,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:05:42,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:05:42,797 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 67 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:05:42,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:05:42,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740037650] [2024-11-16 03:05:42,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740037650] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:05:42,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [177997320] [2024-11-16 03:05:42,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:05:42,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:05:42,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:05:42,800 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:05:42,801 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 03:05:42,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:05:42,894 INFO L255 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 03:05:42,904 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:05:43,170 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2024-11-16 03:05:43,170 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:05:43,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [177997320] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:05:43,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:05:43,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-16 03:05:43,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147661392] [2024-11-16 03:05:43,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:05:43,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:05:43,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:05:43,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:05:43,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 03:05:43,172 INFO L87 Difference]: Start difference. First operand 1721 states and 1986 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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 03:05:43,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:05:43,597 INFO L93 Difference]: Finished difference Result 3440 states and 3970 transitions. [2024-11-16 03:05:43,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:05:43,598 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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 224 [2024-11-16 03:05:43,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:05:43,605 INFO L225 Difference]: With dead ends: 3440 [2024-11-16 03:05:43,608 INFO L226 Difference]: Without dead ends: 1721 [2024-11-16 03:05:43,610 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 03:05:43,610 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 22 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 03:05:43,610 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 170 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 03:05:43,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1721 states. [2024-11-16 03:05:43,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1721 to 1589. [2024-11-16 03:05:43,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1589 states, 1588 states have (on average 1.1272040302267003) internal successors, (1790), 1588 states have internal predecessors, (1790), 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 03:05:43,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1589 states to 1589 states and 1790 transitions. [2024-11-16 03:05:43,647 INFO L78 Accepts]: Start accepts. Automaton has 1589 states and 1790 transitions. Word has length 224 [2024-11-16 03:05:43,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:05:43,648 INFO L471 AbstractCegarLoop]: Abstraction has 1589 states and 1790 transitions. [2024-11-16 03:05:43,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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 03:05:43,648 INFO L276 IsEmpty]: Start isEmpty. Operand 1589 states and 1790 transitions. [2024-11-16 03:05:43,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-11-16 03:05:43,654 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:05:43,654 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-16 03:05:43,684 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 03:05:43,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:05:43,855 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:05:43,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:05:43,856 INFO L85 PathProgramCache]: Analyzing trace with hash 466193260, now seen corresponding path program 1 times [2024-11-16 03:05:43,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:05:43,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739862625] [2024-11-16 03:05:43,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:05:43,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:05:43,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:05:44,267 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 129 proven. 16 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-16 03:05:44,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:05:44,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739862625] [2024-11-16 03:05:44,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739862625] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:05:44,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [548457307] [2024-11-16 03:05:44,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:05:44,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:05:44,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:05:44,269 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:05:44,272 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 03:05:44,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:05:44,364 INFO L255 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 03:05:44,366 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:05:44,509 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-16 03:05:44,509 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:05:44,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [548457307] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:05:44,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:05:44,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-16 03:05:44,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139560225] [2024-11-16 03:05:44,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:05:44,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:05:44,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:05:44,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:05:44,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-16 03:05:44,511 INFO L87 Difference]: Start difference. First operand 1589 states and 1790 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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 03:05:44,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:05:44,782 INFO L93 Difference]: Finished difference Result 3572 states and 4064 transitions. [2024-11-16 03:05:44,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:05:44,783 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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 227 [2024-11-16 03:05:44,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:05:44,787 INFO L225 Difference]: With dead ends: 3572 [2024-11-16 03:05:44,787 INFO L226 Difference]: Without dead ends: 1985 [2024-11-16 03:05:44,788 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-16 03:05:44,788 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 24 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 03:05:44,789 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 178 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 03:05:44,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1985 states. [2024-11-16 03:05:44,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1985 to 1853. [2024-11-16 03:05:44,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1853 states, 1852 states have (on average 1.1301295896328294) internal successors, (2093), 1852 states have internal predecessors, (2093), 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 03:05:44,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1853 states to 1853 states and 2093 transitions. [2024-11-16 03:05:44,806 INFO L78 Accepts]: Start accepts. Automaton has 1853 states and 2093 transitions. Word has length 227 [2024-11-16 03:05:44,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:05:44,807 INFO L471 AbstractCegarLoop]: Abstraction has 1853 states and 2093 transitions. [2024-11-16 03:05:44,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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 03:05:44,807 INFO L276 IsEmpty]: Start isEmpty. Operand 1853 states and 2093 transitions. [2024-11-16 03:05:44,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2024-11-16 03:05:44,810 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:05:44,810 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-16 03:05:44,824 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 03:05:45,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-16 03:05:45,011 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:05:45,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:05:45,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1564277418, now seen corresponding path program 1 times [2024-11-16 03:05:45,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:05:45,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243246187] [2024-11-16 03:05:45,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:05:45,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:05:45,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:05:45,119 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2024-11-16 03:05:45,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:05:45,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243246187] [2024-11-16 03:05:45,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243246187] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:05:45,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:05:45,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:05:45,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914324513] [2024-11-16 03:05:45,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:05:45,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:05:45,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:05:45,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:05:45,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:05:45,121 INFO L87 Difference]: Start difference. First operand 1853 states and 2093 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 03:05:45,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:05:45,374 INFO L93 Difference]: Finished difference Result 3305 states and 3696 transitions. [2024-11-16 03:05:45,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:05:45,374 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 252 [2024-11-16 03:05:45,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:05:45,375 INFO L225 Difference]: With dead ends: 3305 [2024-11-16 03:05:45,375 INFO L226 Difference]: Without dead ends: 0 [2024-11-16 03:05:45,377 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:05:45,377 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 97 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 03:05:45,377 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 30 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 03:05:45,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-16 03:05:45,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-16 03:05:45,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 03:05:45,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-16 03:05:45,378 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 252 [2024-11-16 03:05:45,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:05:45,378 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-16 03:05:45,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 03:05:45,378 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-16 03:05:45,379 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-16 03:05:45,381 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-16 03:05:45,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 03:05:45,383 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:05:45,385 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-16 03:05:45,504 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 03:05:45,512 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 03:05:45 BoogieIcfgContainer [2024-11-16 03:05:45,512 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 03:05:45,512 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 03:05:45,513 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 03:05:45,513 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 03:05:45,513 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:05:36" (3/4) ... [2024-11-16 03:05:45,515 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-16 03:05:45,525 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-16 03:05:45,525 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-16 03:05:45,526 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-16 03:05:45,526 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-16 03:05:45,674 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-16 03:05:45,678 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-16 03:05:45,678 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 03:05:45,679 INFO L158 Benchmark]: Toolchain (without parser) took 10648.38ms. Allocated memory was 176.2MB in the beginning and 402.7MB in the end (delta: 226.5MB). Free memory was 121.0MB in the beginning and 226.4MB in the end (delta: -105.4MB). Peak memory consumption was 124.2MB. Max. memory is 16.1GB. [2024-11-16 03:05:45,679 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 176.2MB. Free memory is still 142.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 03:05:45,679 INFO L158 Benchmark]: CACSL2BoogieTranslator took 644.67ms. Allocated memory is still 176.2MB. Free memory was 121.0MB in the beginning and 91.2MB in the end (delta: 29.8MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-11-16 03:05:45,679 INFO L158 Benchmark]: Boogie Procedure Inliner took 101.90ms. Allocated memory is still 176.2MB. Free memory was 91.2MB in the beginning and 85.4MB in the end (delta: 5.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-16 03:05:45,679 INFO L158 Benchmark]: Boogie Preprocessor took 56.99ms. Allocated memory is still 176.2MB. Free memory was 85.4MB in the beginning and 80.7MB in the end (delta: 4.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-16 03:05:45,679 INFO L158 Benchmark]: IcfgBuilder took 967.15ms. Allocated memory is still 176.2MB. Free memory was 80.7MB in the beginning and 88.5MB in the end (delta: -7.8MB). Peak memory consumption was 40.0MB. Max. memory is 16.1GB. [2024-11-16 03:05:45,679 INFO L158 Benchmark]: TraceAbstraction took 8707.03ms. Allocated memory was 176.2MB in the beginning and 402.7MB in the end (delta: 226.5MB). Free memory was 87.6MB in the beginning and 239.0MB in the end (delta: -151.4MB). Peak memory consumption was 77.9MB. Max. memory is 16.1GB. [2024-11-16 03:05:45,680 INFO L158 Benchmark]: Witness Printer took 165.77ms. Allocated memory is still 402.7MB. Free memory was 239.0MB in the beginning and 226.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-16 03:05:45,680 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 176.2MB. Free memory is still 142.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 644.67ms. Allocated memory is still 176.2MB. Free memory was 121.0MB in the beginning and 91.2MB in the end (delta: 29.8MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 101.90ms. Allocated memory is still 176.2MB. Free memory was 91.2MB in the beginning and 85.4MB in the end (delta: 5.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.99ms. Allocated memory is still 176.2MB. Free memory was 85.4MB in the beginning and 80.7MB in the end (delta: 4.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * IcfgBuilder took 967.15ms. Allocated memory is still 176.2MB. Free memory was 80.7MB in the beginning and 88.5MB in the end (delta: -7.8MB). Peak memory consumption was 40.0MB. Max. memory is 16.1GB. * TraceAbstraction took 8707.03ms. Allocated memory was 176.2MB in the beginning and 402.7MB in the end (delta: 226.5MB). Free memory was 87.6MB in the beginning and 239.0MB in the end (delta: -151.4MB). Peak memory consumption was 77.9MB. Max. memory is 16.1GB. * Witness Printer took 165.77ms. Allocated memory is still 402.7MB. Free memory was 239.0MB in the beginning and 226.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 531]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 201 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.5s, OverallIterations: 9, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1618 SdHoareTripleChecker+Valid, 3.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1618 mSDsluCounter, 717 SdHoareTripleChecker+Invalid, 3.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 113 mSDsCounter, 744 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4366 IncrementalHoareTripleChecker+Invalid, 5110 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 744 mSolverCounterUnsat, 604 mSDtfsCounter, 4366 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 482 GetRequests, 457 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1853occurred in iteration=8, InterpolantAutomatonStates: 35, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 1188 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 1991 NumberOfCodeBlocks, 1991 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1980 ConstructedInterpolants, 0 QuantifiedInterpolants, 11727 SizeOfPredicates, 0 NumberOfNonLiveVariables, 785 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 11 InterpolantComputations, 9 PerfectInterpolantSequences, 1026/1136 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 593]: Location Invariant Derived location invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-16 03:05:45,718 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE