./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem01_label19.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f 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_label19.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 e9fc1c4ac9b5c9b782fe33ece5b0fcbdb6337af474d3fecce508816632ae710b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 18:36:22,595 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 18:36:22,653 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 18:36:22,656 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 18:36:22,656 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 18:36:22,671 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 18:36:22,672 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 18:36:22,672 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 18:36:22,673 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 18:36:22,673 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 18:36:22,673 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 18:36:22,674 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 18:36:22,674 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 18:36:22,674 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 18:36:22,675 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 18:36:22,675 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 18:36:22,675 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 18:36:22,676 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 18:36:22,676 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 18:36:22,676 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 18:36:22,676 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 18:36:22,677 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 18:36:22,678 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 18:36:22,678 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 18:36:22,679 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 18:36:22,679 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 18:36:22,679 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 18:36:22,679 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 18:36:22,680 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 18:36:22,680 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 18:36:22,680 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 18:36:22,680 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 18:36:22,681 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 18:36:22,681 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 18:36:22,681 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 18:36:22,681 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 18:36:22,682 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 18:36:22,682 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 18:36:22,682 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 18:36:22,682 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 18:36:22,683 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 18:36:22,683 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 18:36:22,683 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e9fc1c4ac9b5c9b782fe33ece5b0fcbdb6337af474d3fecce508816632ae710b [2024-11-09 18:36:22,978 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 18:36:23,006 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 18:36:23,012 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 18:36:23,012 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 18:36:23,016 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 18:36:23,017 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem01_label19.c [2024-11-09 18:36:24,516 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 18:36:24,767 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 18:36:24,767 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem01_label19.c [2024-11-09 18:36:24,781 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6368d4753/86cbf8d648134c1eb3057b4833be0de8/FLAG71841772b [2024-11-09 18:36:25,075 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6368d4753/86cbf8d648134c1eb3057b4833be0de8 [2024-11-09 18:36:25,078 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 18:36:25,079 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 18:36:25,080 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 18:36:25,081 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 18:36:25,092 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 18:36:25,093 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:36:25" (1/1) ... [2024-11-09 18:36:25,094 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dac0d42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:36:25, skipping insertion in model container [2024-11-09 18:36:25,094 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:36:25" (1/1) ... [2024-11-09 18:36:25,154 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 18:36:25,417 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_label19.c[16251,16264] [2024-11-09 18:36:25,506 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 18:36:25,515 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 18:36:25,565 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_label19.c[16251,16264] [2024-11-09 18:36:25,577 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 18:36:25,595 INFO L204 MainTranslator]: Completed translation [2024-11-09 18:36:25,596 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:36:25 WrapperNode [2024-11-09 18:36:25,596 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 18:36:25,597 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 18:36:25,597 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 18:36:25,597 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 18:36:25,605 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:36:25" (1/1) ... [2024-11-09 18:36:25,621 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:36:25" (1/1) ... [2024-11-09 18:36:25,659 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 657 [2024-11-09 18:36:25,660 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 18:36:25,661 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 18:36:25,661 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 18:36:25,661 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 18:36:25,671 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:36:25" (1/1) ... [2024-11-09 18:36:25,671 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:36:25" (1/1) ... [2024-11-09 18:36:25,675 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:36:25" (1/1) ... [2024-11-09 18:36:25,695 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]. [2024-11-09 18:36:25,695 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:36:25" (1/1) ... [2024-11-09 18:36:25,696 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:36:25" (1/1) ... [2024-11-09 18:36:25,712 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:36:25" (1/1) ... [2024-11-09 18:36:25,714 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:36:25" (1/1) ... [2024-11-09 18:36:25,718 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:36:25" (1/1) ... [2024-11-09 18:36:25,720 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:36:25" (1/1) ... [2024-11-09 18:36:25,727 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 18:36:25,728 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 18:36:25,729 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 18:36:25,729 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 18:36:25,729 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:36:25" (1/1) ... [2024-11-09 18:36:25,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 18:36:25,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 18:36:25,774 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) [2024-11-09 18:36:25,776 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 [2024-11-09 18:36:25,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 18:36:25,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 18:36:25,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 18:36:25,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 18:36:25,874 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 18:36:25,877 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 18:36:26,702 INFO L? ?]: Removed 75 outVars from TransFormulas that were not future-live. [2024-11-09 18:36:26,702 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 18:36:26,728 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 18:36:26,729 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 18:36:26,729 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 06:36:26 BoogieIcfgContainer [2024-11-09 18:36:26,729 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 18:36:26,731 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 18:36:26,733 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 18:36:26,736 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 18:36:26,737 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:36:25" (1/3) ... [2024-11-09 18:36:26,737 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ec1f958 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:36:26, skipping insertion in model container [2024-11-09 18:36:26,737 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:36:25" (2/3) ... [2024-11-09 18:36:26,738 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ec1f958 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:36:26, skipping insertion in model container [2024-11-09 18:36:26,738 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 06:36:26" (3/3) ... [2024-11-09 18:36:26,740 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label19.c [2024-11-09 18:36:26,757 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 18:36:26,758 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 18:36:26,828 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 18:36:26,836 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;@144d2657, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 18:36:26,836 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 18:36:26,841 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) [2024-11-09 18:36:26,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-09 18:36:26,852 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:36:26,854 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] [2024-11-09 18:36:26,855 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:36:26,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:36:26,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1555508738, now seen corresponding path program 1 times [2024-11-09 18:36:26,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:36:26,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3241101] [2024-11-09 18:36:26,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:36:26,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:36:27,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:36:27,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 18:36:27,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:36:27,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3241101] [2024-11-09 18:36:27,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3241101] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 18:36:27,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 18:36:27,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 18:36:27,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867905574] [2024-11-09 18:36:27,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 18:36:27,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 18:36:27,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:36:27,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 18:36:27,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 18:36:27,492 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 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 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) [2024-11-09 18:36:28,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:36:28,060 INFO L93 Difference]: Finished difference Result 534 states and 921 transitions. [2024-11-09 18:36:28,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 18:36:28,062 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 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 88 [2024-11-09 18:36:28,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:36:28,074 INFO L225 Difference]: With dead ends: 534 [2024-11-09 18:36:28,074 INFO L226 Difference]: Without dead ends: 269 [2024-11-09 18:36:28,081 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 [2024-11-09 18:36:28,083 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 109 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 18:36:28,084 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 48 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 18:36:28,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2024-11-09 18:36:28,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 269. [2024-11-09 18:36:28,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 268 states have (on average 1.4738805970149254) internal successors, (395), 268 states have internal predecessors, (395), 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) [2024-11-09 18:36:28,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 395 transitions. [2024-11-09 18:36:28,136 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 395 transitions. Word has length 88 [2024-11-09 18:36:28,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:36:28,137 INFO L471 AbstractCegarLoop]: Abstraction has 269 states and 395 transitions. [2024-11-09 18:36:28,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 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) [2024-11-09 18:36:28,137 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 395 transitions. [2024-11-09 18:36:28,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-09 18:36:28,140 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:36:28,140 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 18:36:28,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 18:36:28,141 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:36:28,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:36:28,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1064241720, now seen corresponding path program 1 times [2024-11-09 18:36:28,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:36:28,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480220541] [2024-11-09 18:36:28,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:36:28,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:36:28,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:36:28,216 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 18:36:28,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:36:28,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480220541] [2024-11-09 18:36:28,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480220541] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 18:36:28,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 18:36:28,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 18:36:28,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285024773] [2024-11-09 18:36:28,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 18:36:28,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 18:36:28,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:36:28,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 18:36:28,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 18:36:28,219 INFO L87 Difference]: Start difference. First operand 269 states and 395 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 2 states have internal predecessors, (94), 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) [2024-11-09 18:36:28,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:36:28,624 INFO L93 Difference]: Finished difference Result 800 states and 1179 transitions. [2024-11-09 18:36:28,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 18:36:28,624 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 2 states have internal predecessors, (94), 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 94 [2024-11-09 18:36:28,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:36:28,626 INFO L225 Difference]: With dead ends: 800 [2024-11-09 18:36:28,627 INFO L226 Difference]: Without dead ends: 533 [2024-11-09 18:36:28,627 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 [2024-11-09 18:36:28,628 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 173 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 18:36:28,629 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 32 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 18:36:28,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2024-11-09 18:36:28,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 533. [2024-11-09 18:36:28,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 532 states have (on average 1.4097744360902256) internal successors, (750), 532 states have internal predecessors, (750), 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) [2024-11-09 18:36:28,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 750 transitions. [2024-11-09 18:36:28,653 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 750 transitions. Word has length 94 [2024-11-09 18:36:28,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:36:28,653 INFO L471 AbstractCegarLoop]: Abstraction has 533 states and 750 transitions. [2024-11-09 18:36:28,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 2 states have internal predecessors, (94), 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) [2024-11-09 18:36:28,654 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 750 transitions. [2024-11-09 18:36:28,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-09 18:36:28,655 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:36:28,656 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 18:36:28,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 18:36:28,656 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:36:28,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:36:28,656 INFO L85 PathProgramCache]: Analyzing trace with hash 550660959, now seen corresponding path program 1 times [2024-11-09 18:36:28,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:36:28,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391268391] [2024-11-09 18:36:28,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:36:28,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:36:28,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:36:28,803 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 18:36:28,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:36:28,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391268391] [2024-11-09 18:36:28,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391268391] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 18:36:28,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 18:36:28,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 18:36:28,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125682629] [2024-11-09 18:36:28,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 18:36:28,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 18:36:28,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:36:28,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 18:36:28,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 18:36:28,806 INFO L87 Difference]: Start difference. First operand 533 states and 750 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 2 states have internal predecessors, (104), 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) [2024-11-09 18:36:29,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:36:29,110 INFO L93 Difference]: Finished difference Result 1460 states and 2045 transitions. [2024-11-09 18:36:29,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 18:36:29,111 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 2 states have internal predecessors, (104), 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 104 [2024-11-09 18:36:29,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:36:29,113 INFO L225 Difference]: With dead ends: 1460 [2024-11-09 18:36:29,113 INFO L226 Difference]: Without dead ends: 929 [2024-11-09 18:36:29,114 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 [2024-11-09 18:36:29,115 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 122 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 18:36:29,116 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 60 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 18:36:29,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 929 states. [2024-11-09 18:36:29,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 929 to 797. [2024-11-09 18:36:29,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 796 states have (on average 1.3190954773869348) internal successors, (1050), 796 states have internal predecessors, (1050), 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) [2024-11-09 18:36:29,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1050 transitions. [2024-11-09 18:36:29,131 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1050 transitions. Word has length 104 [2024-11-09 18:36:29,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:36:29,132 INFO L471 AbstractCegarLoop]: Abstraction has 797 states and 1050 transitions. [2024-11-09 18:36:29,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 2 states have internal predecessors, (104), 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) [2024-11-09 18:36:29,132 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1050 transitions. [2024-11-09 18:36:29,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-09 18:36:29,134 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:36:29,134 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2024-11-09 18:36:29,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 18:36:29,135 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:36:29,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:36:29,135 INFO L85 PathProgramCache]: Analyzing trace with hash -58875165, now seen corresponding path program 1 times [2024-11-09 18:36:29,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:36:29,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714840326] [2024-11-09 18:36:29,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:36:29,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:36:29,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:36:29,242 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 18:36:29,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:36:29,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714840326] [2024-11-09 18:36:29,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714840326] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 18:36:29,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 18:36:29,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 18:36:29,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643372553] [2024-11-09 18:36:29,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 18:36:29,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 18:36:29,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:36:29,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 18:36:29,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 18:36:29,244 INFO L87 Difference]: Start difference. First operand 797 states and 1050 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 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) [2024-11-09 18:36:29,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:36:29,542 INFO L93 Difference]: Finished difference Result 1856 states and 2453 transitions. [2024-11-09 18:36:29,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 18:36:29,543 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 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 106 [2024-11-09 18:36:29,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:36:29,545 INFO L225 Difference]: With dead ends: 1856 [2024-11-09 18:36:29,545 INFO L226 Difference]: Without dead ends: 1061 [2024-11-09 18:36:29,546 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 [2024-11-09 18:36:29,547 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 127 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 18:36:29,548 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 78 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 18:36:29,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1061 states. [2024-11-09 18:36:29,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1061 to 929. [2024-11-09 18:36:29,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 929 states, 928 states have (on average 1.2866379310344827) internal successors, (1194), 928 states have internal predecessors, (1194), 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) [2024-11-09 18:36:29,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1194 transitions. [2024-11-09 18:36:29,561 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1194 transitions. Word has length 106 [2024-11-09 18:36:29,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:36:29,562 INFO L471 AbstractCegarLoop]: Abstraction has 929 states and 1194 transitions. [2024-11-09 18:36:29,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 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) [2024-11-09 18:36:29,562 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1194 transitions. [2024-11-09 18:36:29,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-09 18:36:29,564 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:36:29,564 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 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] [2024-11-09 18:36:29,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 18:36:29,564 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:36:29,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:36:29,565 INFO L85 PathProgramCache]: Analyzing trace with hash 207650062, now seen corresponding path program 1 times [2024-11-09 18:36:29,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:36:29,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119630824] [2024-11-09 18:36:29,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:36:29,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:36:29,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:36:29,662 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 18:36:29,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:36:29,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119630824] [2024-11-09 18:36:29,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119630824] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 18:36:29,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 18:36:29,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 18:36:29,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358232840] [2024-11-09 18:36:29,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 18:36:29,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 18:36:29,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:36:29,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 18:36:29,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 18:36:29,664 INFO L87 Difference]: Start difference. First operand 929 states and 1194 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 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) [2024-11-09 18:36:30,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:36:30,131 INFO L93 Difference]: Finished difference Result 2384 states and 3071 transitions. [2024-11-09 18:36:30,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 18:36:30,131 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2024-11-09 18:36:30,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:36:30,135 INFO L225 Difference]: With dead ends: 2384 [2024-11-09 18:36:30,135 INFO L226 Difference]: Without dead ends: 1457 [2024-11-09 18:36:30,136 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 [2024-11-09 18:36:30,137 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 390 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 18:36:30,137 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 58 Invalid, 609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 18:36:30,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1457 states. [2024-11-09 18:36:30,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1457 to 1325. [2024-11-09 18:36:30,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1325 states, 1324 states have (on average 1.2643504531722054) internal successors, (1674), 1324 states have internal predecessors, (1674), 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) [2024-11-09 18:36:30,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1325 states to 1325 states and 1674 transitions. [2024-11-09 18:36:30,153 INFO L78 Accepts]: Start accepts. Automaton has 1325 states and 1674 transitions. Word has length 111 [2024-11-09 18:36:30,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:36:30,153 INFO L471 AbstractCegarLoop]: Abstraction has 1325 states and 1674 transitions. [2024-11-09 18:36:30,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 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) [2024-11-09 18:36:30,153 INFO L276 IsEmpty]: Start isEmpty. Operand 1325 states and 1674 transitions. [2024-11-09 18:36:30,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-09 18:36:30,155 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:36:30,155 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2024-11-09 18:36:30,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 18:36:30,155 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:36:30,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:36:30,156 INFO L85 PathProgramCache]: Analyzing trace with hash 2036387660, now seen corresponding path program 1 times [2024-11-09 18:36:30,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:36:30,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020918250] [2024-11-09 18:36:30,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:36:30,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:36:30,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:36:30,305 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 18:36:30,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:36:30,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020918250] [2024-11-09 18:36:30,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020918250] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 18:36:30,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 18:36:30,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 18:36:30,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703075425] [2024-11-09 18:36:30,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 18:36:30,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 18:36:30,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:36:30,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 18:36:30,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 18:36:30,307 INFO L87 Difference]: Start difference. First operand 1325 states and 1674 transitions. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 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) [2024-11-09 18:36:30,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:36:30,926 INFO L93 Difference]: Finished difference Result 3572 states and 4420 transitions. [2024-11-09 18:36:30,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 18:36:30,927 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 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 141 [2024-11-09 18:36:30,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:36:30,932 INFO L225 Difference]: With dead ends: 3572 [2024-11-09 18:36:30,932 INFO L226 Difference]: Without dead ends: 2117 [2024-11-09 18:36:30,938 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 18:36:30,938 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 245 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 676 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 18:36:30,942 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 48 Invalid, 741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 676 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 18:36:30,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2117 states. [2024-11-09 18:36:31,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2117 to 1721. [2024-11-09 18:36:31,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1721 states, 1720 states have (on average 1.2180232558139534) internal successors, (2095), 1720 states have internal predecessors, (2095), 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) [2024-11-09 18:36:31,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1721 states to 1721 states and 2095 transitions. [2024-11-09 18:36:31,025 INFO L78 Accepts]: Start accepts. Automaton has 1721 states and 2095 transitions. Word has length 141 [2024-11-09 18:36:31,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:36:31,026 INFO L471 AbstractCegarLoop]: Abstraction has 1721 states and 2095 transitions. [2024-11-09 18:36:31,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 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) [2024-11-09 18:36:31,026 INFO L276 IsEmpty]: Start isEmpty. Operand 1721 states and 2095 transitions. [2024-11-09 18:36:31,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-11-09 18:36:31,032 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:36:31,032 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 18:36:31,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 18:36:31,033 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:36:31,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:36:31,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1686999393, now seen corresponding path program 1 times [2024-11-09 18:36:31,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:36:31,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496342588] [2024-11-09 18:36:31,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:36:31,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:36:31,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:36:31,686 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 145 proven. 16 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-09 18:36:31,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:36:31,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496342588] [2024-11-09 18:36:31,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496342588] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 18:36:31,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [529331632] [2024-11-09 18:36:31,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:36:31,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 18:36:31,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 18:36:31,689 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) [2024-11-09 18:36:31,690 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 18:36:31,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:36:31,786 INFO L255 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 18:36:31,795 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 18:36:31,972 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-11-09 18:36:31,973 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 18:36:31,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [529331632] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 18:36:31,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 18:36:31,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-09 18:36:31,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055315755] [2024-11-09 18:36:31,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 18:36:31,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 18:36:31,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:36:31,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 18:36:31,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-09 18:36:31,975 INFO L87 Difference]: Start difference. First operand 1721 states and 2095 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 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) [2024-11-09 18:36:32,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:36:32,283 INFO L93 Difference]: Finished difference Result 3437 states and 4186 transitions. [2024-11-09 18:36:32,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 18:36:32,284 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 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 198 [2024-11-09 18:36:32,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:36:32,285 INFO L225 Difference]: With dead ends: 3437 [2024-11-09 18:36:32,285 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 18:36:32,288 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-09 18:36:32,288 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 52 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 18:36:32,288 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 192 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 18:36:32,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 18:36:32,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 18:36:32,290 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) [2024-11-09 18:36:32,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 18:36:32,290 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 198 [2024-11-09 18:36:32,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:36:32,291 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 18:36:32,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 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) [2024-11-09 18:36:32,291 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 18:36:32,291 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 18:36:32,293 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 18:36:32,307 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 18:36:32,494 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 [2024-11-09 18:36:32,497 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-09 18:36:32,500 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 18:36:32,578 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 18:36:32,588 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 06:36:32 BoogieIcfgContainer [2024-11-09 18:36:32,589 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 18:36:32,590 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 18:36:32,590 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 18:36:32,590 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 18:36:32,590 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 06:36:26" (3/4) ... [2024-11-09 18:36:32,592 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-09 18:36:32,606 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-09 18:36:32,607 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-09 18:36:32,608 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 18:36:32,609 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 18:36:32,721 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 18:36:32,721 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-09 18:36:32,721 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 18:36:32,722 INFO L158 Benchmark]: Toolchain (without parser) took 7642.53ms. Allocated memory was 184.5MB in the beginning and 358.6MB in the end (delta: 174.1MB). Free memory was 111.4MB in the beginning and 160.0MB in the end (delta: -48.6MB). Peak memory consumption was 126.2MB. Max. memory is 16.1GB. [2024-11-09 18:36:32,723 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 184.5MB. Free memory is still 141.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 18:36:32,723 INFO L158 Benchmark]: CACSL2BoogieTranslator took 515.95ms. Allocated memory is still 184.5MB. Free memory was 111.2MB in the beginning and 144.5MB in the end (delta: -33.3MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. [2024-11-09 18:36:32,723 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.04ms. Allocated memory is still 184.5MB. Free memory was 144.5MB in the beginning and 139.2MB in the end (delta: 5.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-09 18:36:32,723 INFO L158 Benchmark]: Boogie Preprocessor took 66.94ms. Allocated memory is still 184.5MB. Free memory was 139.2MB in the beginning and 134.1MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 18:36:32,724 INFO L158 Benchmark]: IcfgBuilder took 1000.79ms. Allocated memory is still 184.5MB. Free memory was 134.1MB in the beginning and 143.4MB in the end (delta: -9.3MB). Peak memory consumption was 85.9MB. Max. memory is 16.1GB. [2024-11-09 18:36:32,724 INFO L158 Benchmark]: TraceAbstraction took 5857.96ms. Allocated memory was 184.5MB in the beginning and 358.6MB in the end (delta: 174.1MB). Free memory was 142.3MB in the beginning and 172.6MB in the end (delta: -30.3MB). Peak memory consumption was 143.8MB. Max. memory is 16.1GB. [2024-11-09 18:36:32,724 INFO L158 Benchmark]: Witness Printer took 131.75ms. Allocated memory is still 358.6MB. Free memory was 172.6MB in the beginning and 160.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 18:36:32,725 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 184.5MB. Free memory is still 141.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 515.95ms. Allocated memory is still 184.5MB. Free memory was 111.2MB in the beginning and 144.5MB in the end (delta: -33.3MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.04ms. Allocated memory is still 184.5MB. Free memory was 144.5MB in the beginning and 139.2MB in the end (delta: 5.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.94ms. Allocated memory is still 184.5MB. Free memory was 139.2MB in the beginning and 134.1MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * IcfgBuilder took 1000.79ms. Allocated memory is still 184.5MB. Free memory was 134.1MB in the beginning and 143.4MB in the end (delta: -9.3MB). Peak memory consumption was 85.9MB. Max. memory is 16.1GB. * TraceAbstraction took 5857.96ms. Allocated memory was 184.5MB in the beginning and 358.6MB in the end (delta: 174.1MB). Free memory was 142.3MB in the beginning and 172.6MB in the end (delta: -30.3MB). Peak memory consumption was 143.8MB. Max. memory is 16.1GB. * Witness Printer took 131.75ms. Allocated memory is still 358.6MB. Free memory was 172.6MB in the beginning and 160.0MB 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: 444]: 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: 5.7s, OverallIterations: 7, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1218 SdHoareTripleChecker+Valid, 2.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1218 mSDsluCounter, 516 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 62 mSDsCounter, 584 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2839 IncrementalHoareTripleChecker+Invalid, 3423 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 584 mSolverCounterUnsat, 454 mSDtfsCounter, 2839 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 217 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1721occurred in iteration=6, InterpolantAutomatonStates: 23, 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, 7 MinimizatonAttempts, 792 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 1040 NumberOfCodeBlocks, 1040 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1032 ConstructedInterpolants, 0 QuantifiedInterpolants, 2893 SizeOfPredicates, 0 NumberOfNonLiveVariables, 405 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 8 InterpolantComputations, 7 PerfectInterpolantSequences, 604/620 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! [2024-11-09 18:36:32,749 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