./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/systemc/mem_slave_tlm.1.cil.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/systemc/mem_slave_tlm.1.cil.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 c2172e48d59a79636c380f4fc82a3f737aa7d3f80daa2bd10bb2cc27a12a3e78 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 08:06:23,563 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 08:06:23,646 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 08:06:23,655 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 08:06:23,656 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 08:06:23,680 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 08:06:23,681 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 08:06:23,682 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 08:06:23,682 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 08:06:23,683 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 08:06:23,683 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 08:06:23,683 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 08:06:23,684 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 08:06:23,686 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 08:06:23,687 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 08:06:23,687 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 08:06:23,690 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 08:06:23,691 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 08:06:23,691 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 08:06:23,691 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 08:06:23,691 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 08:06:23,695 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 08:06:23,696 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 08:06:23,696 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 08:06:23,696 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 08:06:23,697 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 08:06:23,697 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 08:06:23,697 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 08:06:23,698 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 08:06:23,698 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 08:06:23,698 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 08:06:23,698 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 08:06:23,699 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:06:23,700 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 08:06:23,700 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 08:06:23,700 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 08:06:23,701 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 08:06:23,701 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 08:06:23,701 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 08:06:23,702 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 08:06:23,702 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 08:06:23,703 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 08:06:23,703 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2172e48d59a79636c380f4fc82a3f737aa7d3f80daa2bd10bb2cc27a12a3e78 [2024-11-16 08:06:23,970 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 08:06:24,000 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 08:06:24,003 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 08:06:24,005 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 08:06:24,005 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 08:06:24,006 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/mem_slave_tlm.1.cil.c [2024-11-16 08:06:25,482 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 08:06:25,741 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 08:06:25,742 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/mem_slave_tlm.1.cil.c [2024-11-16 08:06:25,758 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be87cafa7/c185095c88c94684a24df760c2885ddd/FLAGccd2605d6 [2024-11-16 08:06:26,067 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be87cafa7/c185095c88c94684a24df760c2885ddd [2024-11-16 08:06:26,069 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 08:06:26,071 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 08:06:26,072 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 08:06:26,072 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 08:06:26,077 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 08:06:26,078 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:06:26" (1/1) ... [2024-11-16 08:06:26,079 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f93efc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:06:26, skipping insertion in model container [2024-11-16 08:06:26,079 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:06:26" (1/1) ... [2024-11-16 08:06:26,121 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 08:06:26,290 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/systemc/mem_slave_tlm.1.cil.c[646,659] [2024-11-16 08:06:26,421 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:06:26,443 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 08:06:26,455 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/systemc/mem_slave_tlm.1.cil.c[646,659] [2024-11-16 08:06:26,545 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:06:26,576 INFO L204 MainTranslator]: Completed translation [2024-11-16 08:06:26,576 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:06:26 WrapperNode [2024-11-16 08:06:26,576 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 08:06:26,577 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 08:06:26,577 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 08:06:26,577 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 08:06:26,585 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:06:26" (1/1) ... [2024-11-16 08:06:26,597 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:06:26" (1/1) ... [2024-11-16 08:06:26,668 INFO L138 Inliner]: procedures = 19, calls = 18, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 834 [2024-11-16 08:06:26,669 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 08:06:26,670 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 08:06:26,670 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 08:06:26,670 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 08:06:26,682 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:06:26" (1/1) ... [2024-11-16 08:06:26,682 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:06:26" (1/1) ... [2024-11-16 08:06:26,685 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:06:26" (1/1) ... [2024-11-16 08:06:26,702 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 08:06:26,703 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:06:26" (1/1) ... [2024-11-16 08:06:26,703 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:06:26" (1/1) ... [2024-11-16 08:06:26,712 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:06:26" (1/1) ... [2024-11-16 08:06:26,714 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:06:26" (1/1) ... [2024-11-16 08:06:26,717 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:06:26" (1/1) ... [2024-11-16 08:06:26,719 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:06:26" (1/1) ... [2024-11-16 08:06:26,723 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 08:06:26,724 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 08:06:26,724 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 08:06:26,724 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 08:06:26,725 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:06:26" (1/1) ... [2024-11-16 08:06:26,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:06:26,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:06:26,771 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 08:06:26,773 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 08:06:26,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 08:06:26,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 08:06:26,818 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-11-16 08:06:26,818 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-11-16 08:06:26,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 08:06:26,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 08:06:26,910 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 08:06:26,912 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 08:06:27,751 INFO L? ?]: Removed 84 outVars from TransFormulas that were not future-live. [2024-11-16 08:06:27,752 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 08:06:27,782 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 08:06:27,782 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 08:06:27,782 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:06:27 BoogieIcfgContainer [2024-11-16 08:06:27,783 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 08:06:27,784 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 08:06:27,784 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 08:06:27,788 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 08:06:27,788 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:06:26" (1/3) ... [2024-11-16 08:06:27,789 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@772f79f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:06:27, skipping insertion in model container [2024-11-16 08:06:27,789 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:06:26" (2/3) ... [2024-11-16 08:06:27,790 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@772f79f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:06:27, skipping insertion in model container [2024-11-16 08:06:27,791 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:06:27" (3/3) ... [2024-11-16 08:06:27,792 INFO L112 eAbstractionObserver]: Analyzing ICFG mem_slave_tlm.1.cil.c [2024-11-16 08:06:27,807 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 08:06:27,808 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 08:06:27,880 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 08:06:27,888 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;@11caef24, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 08:06:27,888 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 08:06:27,897 INFO L276 IsEmpty]: Start isEmpty. Operand has 355 states, 347 states have (on average 1.6455331412103746) internal successors, (571), 353 states have internal predecessors, (571), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-16 08:06:27,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-16 08:06:27,916 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:06:27,917 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] [2024-11-16 08:06:27,918 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:06:27,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:06:27,924 INFO L85 PathProgramCache]: Analyzing trace with hash -908687500, now seen corresponding path program 1 times [2024-11-16 08:06:27,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:06:27,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895896763] [2024-11-16 08:06:27,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:06:27,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:06:28,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:06:28,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:06:28,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:06:28,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895896763] [2024-11-16 08:06:28,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895896763] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:06:28,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:06:28,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:06:28,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798030729] [2024-11-16 08:06:28,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:06:28,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:06:28,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:06:28,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:06:28,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:06:28,282 INFO L87 Difference]: Start difference. First operand has 355 states, 347 states have (on average 1.6455331412103746) internal successors, (571), 353 states have internal predecessors, (571), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:28,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:06:28,745 INFO L93 Difference]: Finished difference Result 954 states and 1547 transitions. [2024-11-16 08:06:28,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:06:28,748 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2024-11-16 08:06:28,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:06:28,766 INFO L225 Difference]: With dead ends: 954 [2024-11-16 08:06:28,766 INFO L226 Difference]: Without dead ends: 594 [2024-11-16 08:06:28,773 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:06:28,777 INFO L432 NwaCegarLoop]: 577 mSDtfsCounter, 337 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 951 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 08:06:28,779 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 951 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 08:06:28,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2024-11-16 08:06:28,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 586. [2024-11-16 08:06:28,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 586 states, 580 states have (on average 1.4258620689655173) internal successors, (827), 584 states have internal predecessors, (827), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:28,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 832 transitions. [2024-11-16 08:06:28,913 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 832 transitions. Word has length 33 [2024-11-16 08:06:28,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:06:28,914 INFO L471 AbstractCegarLoop]: Abstraction has 586 states and 832 transitions. [2024-11-16 08:06:28,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:28,916 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 832 transitions. [2024-11-16 08:06:28,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-16 08:06:28,921 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:06:28,921 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] [2024-11-16 08:06:28,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 08:06:28,922 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:06:28,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:06:28,924 INFO L85 PathProgramCache]: Analyzing trace with hash -979500103, now seen corresponding path program 1 times [2024-11-16 08:06:28,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:06:28,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549081843] [2024-11-16 08:06:28,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:06:28,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:06:28,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:06:29,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:06:29,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:06:29,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549081843] [2024-11-16 08:06:29,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549081843] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:06:29,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:06:29,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:06:29,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743063103] [2024-11-16 08:06:29,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:06:29,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:06:29,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:06:29,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:06:29,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:06:29,094 INFO L87 Difference]: Start difference. First operand 586 states and 832 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:29,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:06:29,529 INFO L93 Difference]: Finished difference Result 1921 states and 2666 transitions. [2024-11-16 08:06:29,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:06:29,530 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2024-11-16 08:06:29,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:06:29,537 INFO L225 Difference]: With dead ends: 1921 [2024-11-16 08:06:29,538 INFO L226 Difference]: Without dead ends: 1351 [2024-11-16 08:06:29,540 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:06:29,542 INFO L432 NwaCegarLoop]: 510 mSDtfsCounter, 950 mSDsluCounter, 753 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 950 SdHoareTripleChecker+Valid, 1263 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 08:06:29,542 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [950 Valid, 1263 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 08:06:29,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1351 states. [2024-11-16 08:06:29,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1351 to 1101. [2024-11-16 08:06:29,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1101 states, 1095 states have (on average 1.3926940639269407) internal successors, (1525), 1099 states have internal predecessors, (1525), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:29,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1101 states to 1101 states and 1530 transitions. [2024-11-16 08:06:29,598 INFO L78 Accepts]: Start accepts. Automaton has 1101 states and 1530 transitions. Word has length 55 [2024-11-16 08:06:29,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:06:29,599 INFO L471 AbstractCegarLoop]: Abstraction has 1101 states and 1530 transitions. [2024-11-16 08:06:29,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:29,599 INFO L276 IsEmpty]: Start isEmpty. Operand 1101 states and 1530 transitions. [2024-11-16 08:06:29,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-16 08:06:29,601 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:06:29,601 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] [2024-11-16 08:06:29,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 08:06:29,602 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:06:29,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:06:29,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1791920403, now seen corresponding path program 1 times [2024-11-16 08:06:29,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:06:29,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002261211] [2024-11-16 08:06:29,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:06:29,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:06:29,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:06:29,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:06:29,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:06:29,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002261211] [2024-11-16 08:06:29,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002261211] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:06:29,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:06:29,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:06:29,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860471624] [2024-11-16 08:06:29,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:06:29,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:06:29,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:06:29,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:06:29,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:06:29,684 INFO L87 Difference]: Start difference. First operand 1101 states and 1530 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:29,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:06:29,823 INFO L93 Difference]: Finished difference Result 2875 states and 4052 transitions. [2024-11-16 08:06:29,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:06:29,823 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-11-16 08:06:29,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:06:29,832 INFO L225 Difference]: With dead ends: 2875 [2024-11-16 08:06:29,832 INFO L226 Difference]: Without dead ends: 1793 [2024-11-16 08:06:29,836 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:06:29,838 INFO L432 NwaCegarLoop]: 743 mSDtfsCounter, 381 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 1191 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:06:29,841 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [381 Valid, 1191 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:06:29,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1793 states. [2024-11-16 08:06:29,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1793 to 1785. [2024-11-16 08:06:29,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1785 states, 1779 states have (on average 1.418212478920742) internal successors, (2523), 1783 states have internal predecessors, (2523), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:29,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1785 states to 1785 states and 2528 transitions. [2024-11-16 08:06:29,896 INFO L78 Accepts]: Start accepts. Automaton has 1785 states and 2528 transitions. Word has length 58 [2024-11-16 08:06:29,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:06:29,897 INFO L471 AbstractCegarLoop]: Abstraction has 1785 states and 2528 transitions. [2024-11-16 08:06:29,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:29,898 INFO L276 IsEmpty]: Start isEmpty. Operand 1785 states and 2528 transitions. [2024-11-16 08:06:29,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-16 08:06:29,902 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:06:29,902 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] [2024-11-16 08:06:29,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 08:06:29,903 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:06:29,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:06:29,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1746502703, now seen corresponding path program 1 times [2024-11-16 08:06:29,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:06:29,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856610481] [2024-11-16 08:06:29,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:06:29,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:06:29,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:06:30,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:06:30,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:06:30,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856610481] [2024-11-16 08:06:30,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856610481] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:06:30,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:06:30,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:06:30,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019433724] [2024-11-16 08:06:30,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:06:30,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:06:30,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:06:30,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:06:30,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:06:30,008 INFO L87 Difference]: Start difference. First operand 1785 states and 2528 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:30,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:06:30,083 INFO L93 Difference]: Finished difference Result 4463 states and 6330 transitions. [2024-11-16 08:06:30,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:06:30,083 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2024-11-16 08:06:30,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:06:30,097 INFO L225 Difference]: With dead ends: 4463 [2024-11-16 08:06:30,097 INFO L226 Difference]: Without dead ends: 2713 [2024-11-16 08:06:30,103 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:06:30,104 INFO L432 NwaCegarLoop]: 517 mSDtfsCounter, 399 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 950 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:06:30,106 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [399 Valid, 950 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:06:30,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2713 states. [2024-11-16 08:06:30,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2713 to 2655. [2024-11-16 08:06:30,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2655 states, 2649 states have (on average 1.4186485466213665) internal successors, (3758), 2653 states have internal predecessors, (3758), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:30,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2655 states to 2655 states and 3763 transitions. [2024-11-16 08:06:30,183 INFO L78 Accepts]: Start accepts. Automaton has 2655 states and 3763 transitions. Word has length 59 [2024-11-16 08:06:30,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:06:30,185 INFO L471 AbstractCegarLoop]: Abstraction has 2655 states and 3763 transitions. [2024-11-16 08:06:30,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:30,185 INFO L276 IsEmpty]: Start isEmpty. Operand 2655 states and 3763 transitions. [2024-11-16 08:06:30,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-16 08:06:30,188 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:06:30,188 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] [2024-11-16 08:06:30,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 08:06:30,189 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:06:30,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:06:30,189 INFO L85 PathProgramCache]: Analyzing trace with hash -514913412, now seen corresponding path program 1 times [2024-11-16 08:06:30,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:06:30,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739035941] [2024-11-16 08:06:30,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:06:30,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:06:30,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:06:30,301 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 08:06:30,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:06:30,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739035941] [2024-11-16 08:06:30,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739035941] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:06:30,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:06:30,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:06:30,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655915610] [2024-11-16 08:06:30,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:06:30,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:06:30,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:06:30,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:06:30,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:06:30,305 INFO L87 Difference]: Start difference. First operand 2655 states and 3763 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:30,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:06:30,910 INFO L93 Difference]: Finished difference Result 9360 states and 13270 transitions. [2024-11-16 08:06:30,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:06:30,911 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-11-16 08:06:30,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:06:30,936 INFO L225 Difference]: With dead ends: 9360 [2024-11-16 08:06:30,936 INFO L226 Difference]: Without dead ends: 6740 [2024-11-16 08:06:30,941 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:06:30,944 INFO L432 NwaCegarLoop]: 759 mSDtfsCounter, 1360 mSDsluCounter, 1170 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1360 SdHoareTripleChecker+Valid, 1929 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 08:06:30,945 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1360 Valid, 1929 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 08:06:30,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6740 states. [2024-11-16 08:06:31,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6740 to 5479. [2024-11-16 08:06:31,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5479 states, 5473 states have (on average 1.4087337840306962) internal successors, (7710), 5477 states have internal predecessors, (7710), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:31,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 7715 transitions. [2024-11-16 08:06:31,126 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 7715 transitions. Word has length 66 [2024-11-16 08:06:31,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:06:31,128 INFO L471 AbstractCegarLoop]: Abstraction has 5479 states and 7715 transitions. [2024-11-16 08:06:31,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:31,128 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 7715 transitions. [2024-11-16 08:06:31,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-16 08:06:31,130 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:06:31,131 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] [2024-11-16 08:06:31,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 08:06:31,131 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:06:31,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:06:31,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1644514093, now seen corresponding path program 1 times [2024-11-16 08:06:31,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:06:31,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528902989] [2024-11-16 08:06:31,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:06:31,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:06:31,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:06:31,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:06:31,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:06:31,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528902989] [2024-11-16 08:06:31,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528902989] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:06:31,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:06:31,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:06:31,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518550457] [2024-11-16 08:06:31,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:06:31,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:06:31,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:06:31,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:06:31,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:06:31,222 INFO L87 Difference]: Start difference. First operand 5479 states and 7715 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:31,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:06:31,425 INFO L93 Difference]: Finished difference Result 13068 states and 18328 transitions. [2024-11-16 08:06:31,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:06:31,426 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-11-16 08:06:31,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:06:31,456 INFO L225 Difference]: With dead ends: 13068 [2024-11-16 08:06:31,456 INFO L226 Difference]: Without dead ends: 7624 [2024-11-16 08:06:31,466 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:06:31,469 INFO L432 NwaCegarLoop]: 517 mSDtfsCounter, 414 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 414 SdHoareTripleChecker+Valid, 832 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:06:31,471 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [414 Valid, 832 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:06:31,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7624 states. [2024-11-16 08:06:31,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7624 to 7199. [2024-11-16 08:06:31,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7199 states, 7193 states have (on average 1.391352704017795) internal successors, (10008), 7197 states have internal predecessors, (10008), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:31,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7199 states to 7199 states and 10013 transitions. [2024-11-16 08:06:31,788 INFO L78 Accepts]: Start accepts. Automaton has 7199 states and 10013 transitions. Word has length 82 [2024-11-16 08:06:31,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:06:31,788 INFO L471 AbstractCegarLoop]: Abstraction has 7199 states and 10013 transitions. [2024-11-16 08:06:31,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:31,790 INFO L276 IsEmpty]: Start isEmpty. Operand 7199 states and 10013 transitions. [2024-11-16 08:06:31,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-16 08:06:31,792 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:06:31,792 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] [2024-11-16 08:06:31,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 08:06:31,793 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:06:31,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:06:31,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1036233113, now seen corresponding path program 1 times [2024-11-16 08:06:31,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:06:31,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611321152] [2024-11-16 08:06:31,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:06:31,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:06:31,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:06:31,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:06:31,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:06:31,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611321152] [2024-11-16 08:06:31,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611321152] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:06:31,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:06:31,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:06:31,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417803575] [2024-11-16 08:06:31,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:06:31,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:06:31,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:06:31,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:06:31,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:06:31,887 INFO L87 Difference]: Start difference. First operand 7199 states and 10013 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:32,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:06:32,378 INFO L93 Difference]: Finished difference Result 17461 states and 24339 transitions. [2024-11-16 08:06:32,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:06:32,378 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2024-11-16 08:06:32,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:06:32,427 INFO L225 Difference]: With dead ends: 17461 [2024-11-16 08:06:32,430 INFO L226 Difference]: Without dead ends: 10297 [2024-11-16 08:06:32,444 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:06:32,444 INFO L432 NwaCegarLoop]: 722 mSDtfsCounter, 313 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 1087 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 08:06:32,445 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 1087 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 08:06:32,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10297 states. [2024-11-16 08:06:32,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10297 to 8387. [2024-11-16 08:06:32,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8387 states, 8381 states have (on average 1.3519866364395656) internal successors, (11331), 8385 states have internal predecessors, (11331), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:32,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8387 states to 8387 states and 11336 transitions. [2024-11-16 08:06:32,782 INFO L78 Accepts]: Start accepts. Automaton has 8387 states and 11336 transitions. Word has length 87 [2024-11-16 08:06:32,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:06:32,783 INFO L471 AbstractCegarLoop]: Abstraction has 8387 states and 11336 transitions. [2024-11-16 08:06:32,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:32,784 INFO L276 IsEmpty]: Start isEmpty. Operand 8387 states and 11336 transitions. [2024-11-16 08:06:32,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-16 08:06:32,792 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:06:32,792 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] [2024-11-16 08:06:32,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 08:06:32,792 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:06:32,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:06:32,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1632030209, now seen corresponding path program 1 times [2024-11-16 08:06:32,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:06:32,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673065702] [2024-11-16 08:06:32,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:06:32,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:06:32,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:06:32,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:06:32,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:06:32,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673065702] [2024-11-16 08:06:32,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673065702] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:06:32,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:06:32,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:06:32,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696373144] [2024-11-16 08:06:32,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:06:32,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:06:32,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:06:32,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:06:32,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:06:32,902 INFO L87 Difference]: Start difference. First operand 8387 states and 11336 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:33,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:06:33,164 INFO L93 Difference]: Finished difference Result 16549 states and 22381 transitions. [2024-11-16 08:06:33,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:06:33,165 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2024-11-16 08:06:33,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:06:33,188 INFO L225 Difference]: With dead ends: 16549 [2024-11-16 08:06:33,188 INFO L226 Difference]: Without dead ends: 8197 [2024-11-16 08:06:33,202 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:06:33,203 INFO L432 NwaCegarLoop]: 488 mSDtfsCounter, 383 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:06:33,203 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 522 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:06:33,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8197 states. [2024-11-16 08:06:33,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8197 to 8197. [2024-11-16 08:06:33,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8197 states, 8191 states have (on average 1.3378097912342815) internal successors, (10958), 8195 states have internal predecessors, (10958), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:33,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8197 states to 8197 states and 10963 transitions. [2024-11-16 08:06:33,511 INFO L78 Accepts]: Start accepts. Automaton has 8197 states and 10963 transitions. Word has length 91 [2024-11-16 08:06:33,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:06:33,512 INFO L471 AbstractCegarLoop]: Abstraction has 8197 states and 10963 transitions. [2024-11-16 08:06:33,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:33,513 INFO L276 IsEmpty]: Start isEmpty. Operand 8197 states and 10963 transitions. [2024-11-16 08:06:33,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-16 08:06:33,516 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:06:33,516 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:06:33,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 08:06:33,516 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:06:33,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:06:33,517 INFO L85 PathProgramCache]: Analyzing trace with hash 659222302, now seen corresponding path program 1 times [2024-11-16 08:06:33,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:06:33,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009503522] [2024-11-16 08:06:33,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:06:33,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:06:33,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:06:33,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:06:33,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:06:33,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009503522] [2024-11-16 08:06:33,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009503522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:06:33,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:06:33,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:06:33,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120346985] [2024-11-16 08:06:33,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:06:33,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:06:33,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:06:33,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:06:33,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:06:33,563 INFO L87 Difference]: Start difference. First operand 8197 states and 10963 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:33,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:06:33,789 INFO L93 Difference]: Finished difference Result 15762 states and 21241 transitions. [2024-11-16 08:06:33,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:06:33,789 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2024-11-16 08:06:33,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:06:33,808 INFO L225 Difference]: With dead ends: 15762 [2024-11-16 08:06:33,808 INFO L226 Difference]: Without dead ends: 7600 [2024-11-16 08:06:33,820 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:06:33,823 INFO L432 NwaCegarLoop]: 564 mSDtfsCounter, 183 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 1046 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:06:33,824 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 1046 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:06:33,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7600 states. [2024-11-16 08:06:33,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7600 to 6613. [2024-11-16 08:06:33,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6613 states, 6607 states have (on average 1.3571969123656729) internal successors, (8967), 6611 states have internal predecessors, (8967), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:34,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6613 states to 6613 states and 8972 transitions. [2024-11-16 08:06:34,011 INFO L78 Accepts]: Start accepts. Automaton has 6613 states and 8972 transitions. Word has length 92 [2024-11-16 08:06:34,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:06:34,011 INFO L471 AbstractCegarLoop]: Abstraction has 6613 states and 8972 transitions. [2024-11-16 08:06:34,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:34,012 INFO L276 IsEmpty]: Start isEmpty. Operand 6613 states and 8972 transitions. [2024-11-16 08:06:34,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-16 08:06:34,014 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:06:34,014 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] [2024-11-16 08:06:34,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 08:06:34,014 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:06:34,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:06:34,015 INFO L85 PathProgramCache]: Analyzing trace with hash 996830784, now seen corresponding path program 1 times [2024-11-16 08:06:34,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:06:34,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319294079] [2024-11-16 08:06:34,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:06:34,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:06:34,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:06:34,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:06:34,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:06:34,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319294079] [2024-11-16 08:06:34,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319294079] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:06:34,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:06:34,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:06:34,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576147370] [2024-11-16 08:06:34,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:06:34,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 08:06:34,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:06:34,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 08:06:34,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 08:06:34,142 INFO L87 Difference]: Start difference. First operand 6613 states and 8972 transitions. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:34,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:06:34,753 INFO L93 Difference]: Finished difference Result 19337 states and 26240 transitions. [2024-11-16 08:06:34,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 08:06:34,754 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2024-11-16 08:06:34,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:06:34,787 INFO L225 Difference]: With dead ends: 19337 [2024-11-16 08:06:34,787 INFO L226 Difference]: Without dead ends: 13053 [2024-11-16 08:06:34,797 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:06:34,798 INFO L432 NwaCegarLoop]: 670 mSDtfsCounter, 1162 mSDsluCounter, 2264 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1162 SdHoareTripleChecker+Valid, 2934 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 08:06:34,799 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1162 Valid, 2934 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 08:06:34,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13053 states. [2024-11-16 08:06:35,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13053 to 8993. [2024-11-16 08:06:35,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8993 states, 8987 states have (on average 1.3591854901524425) internal successors, (12215), 8991 states have internal predecessors, (12215), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:35,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8993 states to 8993 states and 12220 transitions. [2024-11-16 08:06:35,131 INFO L78 Accepts]: Start accepts. Automaton has 8993 states and 12220 transitions. Word has length 97 [2024-11-16 08:06:35,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:06:35,132 INFO L471 AbstractCegarLoop]: Abstraction has 8993 states and 12220 transitions. [2024-11-16 08:06:35,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:35,132 INFO L276 IsEmpty]: Start isEmpty. Operand 8993 states and 12220 transitions. [2024-11-16 08:06:35,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-16 08:06:35,136 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:06:35,136 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] [2024-11-16 08:06:35,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 08:06:35,137 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:06:35,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:06:35,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1055713319, now seen corresponding path program 1 times [2024-11-16 08:06:35,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:06:35,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786411102] [2024-11-16 08:06:35,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:06:35,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:06:35,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:06:35,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:06:35,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:06:35,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786411102] [2024-11-16 08:06:35,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786411102] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:06:35,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:06:35,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:06:35,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697749782] [2024-11-16 08:06:35,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:06:35,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:06:35,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:06:35,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:06:35,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:06:35,267 INFO L87 Difference]: Start difference. First operand 8993 states and 12220 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 7 states have internal predecessors, (97), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:35,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:06:35,686 INFO L93 Difference]: Finished difference Result 13024 states and 17520 transitions. [2024-11-16 08:06:35,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 08:06:35,687 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 7 states have internal predecessors, (97), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2024-11-16 08:06:35,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:06:35,717 INFO L225 Difference]: With dead ends: 13024 [2024-11-16 08:06:35,717 INFO L226 Difference]: Without dead ends: 13020 [2024-11-16 08:06:35,724 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-11-16 08:06:35,725 INFO L432 NwaCegarLoop]: 629 mSDtfsCounter, 1020 mSDsluCounter, 2820 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1020 SdHoareTripleChecker+Valid, 3449 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:06:35,725 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1020 Valid, 3449 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:06:35,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13020 states. [2024-11-16 08:06:35,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13020 to 9495. [2024-11-16 08:06:35,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9495 states, 9489 states have (on average 1.3528295921593423) internal successors, (12837), 9493 states have internal predecessors, (12837), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:35,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9495 states to 9495 states and 12842 transitions. [2024-11-16 08:06:35,998 INFO L78 Accepts]: Start accepts. Automaton has 9495 states and 12842 transitions. Word has length 98 [2024-11-16 08:06:35,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:06:35,999 INFO L471 AbstractCegarLoop]: Abstraction has 9495 states and 12842 transitions. [2024-11-16 08:06:35,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 7 states have internal predecessors, (97), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:35,999 INFO L276 IsEmpty]: Start isEmpty. Operand 9495 states and 12842 transitions. [2024-11-16 08:06:36,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-16 08:06:36,004 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:06:36,004 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 08:06:36,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 08:06:36,004 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:06:36,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:06:36,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1320032702, now seen corresponding path program 1 times [2024-11-16 08:06:36,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:06:36,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238276077] [2024-11-16 08:06:36,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:06:36,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:06:36,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:06:36,043 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:06:36,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:06:36,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238276077] [2024-11-16 08:06:36,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238276077] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:06:36,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:06:36,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:06:36,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828193105] [2024-11-16 08:06:36,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:06:36,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:06:36,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:06:36,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:06:36,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:06:36,046 INFO L87 Difference]: Start difference. First operand 9495 states and 12842 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:36,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:06:36,347 INFO L93 Difference]: Finished difference Result 20207 states and 27240 transitions. [2024-11-16 08:06:36,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:06:36,347 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2024-11-16 08:06:36,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:06:36,372 INFO L225 Difference]: With dead ends: 20207 [2024-11-16 08:06:36,372 INFO L226 Difference]: Without dead ends: 10745 [2024-11-16 08:06:36,385 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:06:36,386 INFO L432 NwaCegarLoop]: 553 mSDtfsCounter, 166 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 990 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:06:36,386 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 990 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:06:36,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10745 states. [2024-11-16 08:06:36,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10745 to 10538. [2024-11-16 08:06:36,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10538 states, 10532 states have (on average 1.346752753513103) internal successors, (14184), 10536 states have internal predecessors, (14184), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:36,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10538 states to 10538 states and 14189 transitions. [2024-11-16 08:06:36,628 INFO L78 Accepts]: Start accepts. Automaton has 10538 states and 14189 transitions. Word has length 120 [2024-11-16 08:06:36,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:06:36,628 INFO L471 AbstractCegarLoop]: Abstraction has 10538 states and 14189 transitions. [2024-11-16 08:06:36,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:36,628 INFO L276 IsEmpty]: Start isEmpty. Operand 10538 states and 14189 transitions. [2024-11-16 08:06:36,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-16 08:06:36,632 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:06:36,632 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:06:36,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 08:06:36,633 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:06:36,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:06:36,633 INFO L85 PathProgramCache]: Analyzing trace with hash -760885943, now seen corresponding path program 1 times [2024-11-16 08:06:36,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:06:36,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780471935] [2024-11-16 08:06:36,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:06:36,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:06:36,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:06:36,693 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:06:36,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:06:36,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780471935] [2024-11-16 08:06:36,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780471935] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:06:36,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:06:36,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:06:36,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689814510] [2024-11-16 08:06:36,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:06:36,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:06:36,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:06:36,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:06:36,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:06:36,696 INFO L87 Difference]: Start difference. First operand 10538 states and 14189 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:37,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:06:37,409 INFO L93 Difference]: Finished difference Result 27263 states and 36438 transitions. [2024-11-16 08:06:37,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:06:37,410 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 139 [2024-11-16 08:06:37,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:06:37,449 INFO L225 Difference]: With dead ends: 27263 [2024-11-16 08:06:37,450 INFO L226 Difference]: Without dead ends: 16567 [2024-11-16 08:06:37,473 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:06:37,473 INFO L432 NwaCegarLoop]: 832 mSDtfsCounter, 813 mSDsluCounter, 963 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 813 SdHoareTripleChecker+Valid, 1795 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 08:06:37,474 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [813 Valid, 1795 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 08:06:37,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16567 states. [2024-11-16 08:06:37,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16567 to 14789. [2024-11-16 08:06:37,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14789 states, 14783 states have (on average 1.3214503145504972) internal successors, (19535), 14787 states have internal predecessors, (19535), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:37,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14789 states to 14789 states and 19540 transitions. [2024-11-16 08:06:37,847 INFO L78 Accepts]: Start accepts. Automaton has 14789 states and 19540 transitions. Word has length 139 [2024-11-16 08:06:37,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:06:37,847 INFO L471 AbstractCegarLoop]: Abstraction has 14789 states and 19540 transitions. [2024-11-16 08:06:37,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:37,848 INFO L276 IsEmpty]: Start isEmpty. Operand 14789 states and 19540 transitions. [2024-11-16 08:06:37,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-16 08:06:37,852 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:06:37,852 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:06:37,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 08:06:37,852 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:06:37,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:06:37,853 INFO L85 PathProgramCache]: Analyzing trace with hash 2055501293, now seen corresponding path program 1 times [2024-11-16 08:06:37,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:06:37,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712933922] [2024-11-16 08:06:37,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:06:37,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:06:37,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:06:37,979 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:06:37,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:06:37,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712933922] [2024-11-16 08:06:37,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712933922] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:06:37,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:06:37,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:06:37,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373698269] [2024-11-16 08:06:37,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:06:37,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:06:37,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:06:37,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:06:37,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:06:37,983 INFO L87 Difference]: Start difference. First operand 14789 states and 19540 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:38,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:06:38,256 INFO L93 Difference]: Finished difference Result 21077 states and 27911 transitions. [2024-11-16 08:06:38,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:06:38,257 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 146 [2024-11-16 08:06:38,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:06:38,274 INFO L225 Difference]: With dead ends: 21077 [2024-11-16 08:06:38,275 INFO L226 Difference]: Without dead ends: 6296 [2024-11-16 08:06:38,289 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:06:38,290 INFO L432 NwaCegarLoop]: 549 mSDtfsCounter, 391 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 668 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:06:38,291 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [391 Valid, 668 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:06:38,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6296 states. [2024-11-16 08:06:38,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6296 to 6192. [2024-11-16 08:06:38,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6192 states, 6186 states have (on average 1.2584869059165857) internal successors, (7785), 6190 states have internal predecessors, (7785), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:38,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6192 states to 6192 states and 7790 transitions. [2024-11-16 08:06:38,493 INFO L78 Accepts]: Start accepts. Automaton has 6192 states and 7790 transitions. Word has length 146 [2024-11-16 08:06:38,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:06:38,494 INFO L471 AbstractCegarLoop]: Abstraction has 6192 states and 7790 transitions. [2024-11-16 08:06:38,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:38,494 INFO L276 IsEmpty]: Start isEmpty. Operand 6192 states and 7790 transitions. [2024-11-16 08:06:38,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-16 08:06:38,497 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:06:38,497 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:06:38,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 08:06:38,498 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:06:38,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:06:38,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1826970818, now seen corresponding path program 1 times [2024-11-16 08:06:38,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:06:38,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110394391] [2024-11-16 08:06:38,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:06:38,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:06:38,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:06:38,590 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:06:38,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:06:38,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110394391] [2024-11-16 08:06:38,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110394391] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:06:38,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:06:38,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 08:06:38,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033038761] [2024-11-16 08:06:38,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:06:38,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:06:38,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:06:38,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:06:38,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:06:38,594 INFO L87 Difference]: Start difference. First operand 6192 states and 7790 transitions. Second operand has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:38,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:06:38,944 INFO L93 Difference]: Finished difference Result 14605 states and 18359 transitions. [2024-11-16 08:06:38,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 08:06:38,945 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2024-11-16 08:06:38,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:06:38,968 INFO L225 Difference]: With dead ends: 14605 [2024-11-16 08:06:38,968 INFO L226 Difference]: Without dead ends: 8675 [2024-11-16 08:06:38,978 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:06:38,981 INFO L432 NwaCegarLoop]: 838 mSDtfsCounter, 650 mSDsluCounter, 1991 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 650 SdHoareTripleChecker+Valid, 2829 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:06:38,981 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [650 Valid, 2829 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:06:38,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8675 states. [2024-11-16 08:06:39,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8675 to 6194. [2024-11-16 08:06:39,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6194 states, 6188 states have (on average 1.256464124111183) internal successors, (7775), 6192 states have internal predecessors, (7775), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:39,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6194 states to 6194 states and 7780 transitions. [2024-11-16 08:06:39,230 INFO L78 Accepts]: Start accepts. Automaton has 6194 states and 7780 transitions. Word has length 153 [2024-11-16 08:06:39,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:06:39,231 INFO L471 AbstractCegarLoop]: Abstraction has 6194 states and 7780 transitions. [2024-11-16 08:06:39,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:39,231 INFO L276 IsEmpty]: Start isEmpty. Operand 6194 states and 7780 transitions. [2024-11-16 08:06:39,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-16 08:06:39,234 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:06:39,234 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:06:39,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 08:06:39,235 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:06:39,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:06:39,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1099654299, now seen corresponding path program 1 times [2024-11-16 08:06:39,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:06:39,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120245556] [2024-11-16 08:06:39,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:06:39,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:06:39,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:06:39,345 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:06:39,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:06:39,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120245556] [2024-11-16 08:06:39,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120245556] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:06:39,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1046533128] [2024-11-16 08:06:39,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:06:39,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:06:39,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:06:39,352 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 08:06:39,353 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 08:06:39,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:06:39,479 INFO L255 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 08:06:39,488 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:06:39,684 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-16 08:06:39,685 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 08:06:39,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1046533128] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:06:39,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 08:06:39,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-16 08:06:39,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921736284] [2024-11-16 08:06:39,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:06:39,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:06:39,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:06:39,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:06:39,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 08:06:39,687 INFO L87 Difference]: Start difference. First operand 6194 states and 7780 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:39,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:06:39,875 INFO L93 Difference]: Finished difference Result 7892 states and 9908 transitions. [2024-11-16 08:06:39,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:06:39,875 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 155 [2024-11-16 08:06:39,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:06:39,895 INFO L225 Difference]: With dead ends: 7892 [2024-11-16 08:06:39,895 INFO L226 Difference]: Without dead ends: 7887 [2024-11-16 08:06:39,899 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 08:06:39,900 INFO L432 NwaCegarLoop]: 527 mSDtfsCounter, 254 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:06:39,900 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 973 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:06:39,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7887 states. [2024-11-16 08:06:40,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7887 to 7660. [2024-11-16 08:06:40,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7660 states, 7654 states have (on average 1.2603867258949568) internal successors, (9647), 7658 states have internal predecessors, (9647), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:40,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7660 states to 7660 states and 9652 transitions. [2024-11-16 08:06:40,153 INFO L78 Accepts]: Start accepts. Automaton has 7660 states and 9652 transitions. Word has length 155 [2024-11-16 08:06:40,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:06:40,154 INFO L471 AbstractCegarLoop]: Abstraction has 7660 states and 9652 transitions. [2024-11-16 08:06:40,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:40,154 INFO L276 IsEmpty]: Start isEmpty. Operand 7660 states and 9652 transitions. [2024-11-16 08:06:40,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-11-16 08:06:40,158 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:06:40,158 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:06:40,180 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 08:06:40,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-16 08:06:40,360 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:06:40,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:06:40,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1506567218, now seen corresponding path program 1 times [2024-11-16 08:06:40,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:06:40,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459997255] [2024-11-16 08:06:40,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:06:40,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:06:40,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:06:40,483 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 22 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:06:40,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:06:40,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459997255] [2024-11-16 08:06:40,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459997255] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:06:40,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1618685388] [2024-11-16 08:06:40,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:06:40,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:06:40,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:06:40,486 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 08:06:40,487 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 08:06:40,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:06:40,619 INFO L255 TraceCheckSpWp]: Trace formula consists of 606 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 08:06:40,627 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:06:40,757 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-16 08:06:40,758 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 08:06:40,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1618685388] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:06:40,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 08:06:40,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-16 08:06:40,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275693368] [2024-11-16 08:06:40,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:06:40,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:06:40,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:06:40,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:06:40,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 08:06:40,761 INFO L87 Difference]: Start difference. First operand 7660 states and 9652 transitions. Second operand has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:40,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:06:40,902 INFO L93 Difference]: Finished difference Result 13574 states and 17168 transitions. [2024-11-16 08:06:40,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:06:40,903 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 229 [2024-11-16 08:06:40,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:06:40,916 INFO L225 Difference]: With dead ends: 13574 [2024-11-16 08:06:40,917 INFO L226 Difference]: Without dead ends: 5933 [2024-11-16 08:06:40,925 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 08:06:40,926 INFO L432 NwaCegarLoop]: 447 mSDtfsCounter, 301 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:06:40,926 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 508 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:06:40,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5933 states. [2024-11-16 08:06:41,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5933 to 5422. [2024-11-16 08:06:41,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5422 states, 5416 states have (on average 1.2448301329394387) internal successors, (6742), 5420 states have internal predecessors, (6742), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:41,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5422 states to 5422 states and 6747 transitions. [2024-11-16 08:06:41,061 INFO L78 Accepts]: Start accepts. Automaton has 5422 states and 6747 transitions. Word has length 229 [2024-11-16 08:06:41,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:06:41,062 INFO L471 AbstractCegarLoop]: Abstraction has 5422 states and 6747 transitions. [2024-11-16 08:06:41,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:41,062 INFO L276 IsEmpty]: Start isEmpty. Operand 5422 states and 6747 transitions. [2024-11-16 08:06:41,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2024-11-16 08:06:41,065 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:06:41,066 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:06:41,084 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-16 08:06:41,270 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,SelfDestructingSolverStorable16 [2024-11-16 08:06:41,271 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:06:41,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:06:41,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1430116211, now seen corresponding path program 1 times [2024-11-16 08:06:41,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:06:41,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691365111] [2024-11-16 08:06:41,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:06:41,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:06:41,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:06:41,356 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-16 08:06:41,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:06:41,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691365111] [2024-11-16 08:06:41,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691365111] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:06:41,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:06:41,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:06:41,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660801929] [2024-11-16 08:06:41,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:06:41,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:06:41,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:06:41,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:06:41,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:06:41,359 INFO L87 Difference]: Start difference. First operand 5422 states and 6747 transitions. Second operand has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:41,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:06:41,533 INFO L93 Difference]: Finished difference Result 6272 states and 7740 transitions. [2024-11-16 08:06:41,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:06:41,534 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 235 [2024-11-16 08:06:41,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:06:41,540 INFO L225 Difference]: With dead ends: 6272 [2024-11-16 08:06:41,541 INFO L226 Difference]: Without dead ends: 953 [2024-11-16 08:06:41,545 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:06:41,546 INFO L432 NwaCegarLoop]: 400 mSDtfsCounter, 183 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:06:41,546 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 587 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:06:41,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 953 states. [2024-11-16 08:06:41,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 953 to 942. [2024-11-16 08:06:41,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 942 states, 938 states have (on average 1.0533049040511726) internal successors, (988), 940 states have internal predecessors, (988), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:41,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 991 transitions. [2024-11-16 08:06:41,576 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 991 transitions. Word has length 235 [2024-11-16 08:06:41,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:06:41,577 INFO L471 AbstractCegarLoop]: Abstraction has 942 states and 991 transitions. [2024-11-16 08:06:41,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:41,577 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 991 transitions. [2024-11-16 08:06:41,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2024-11-16 08:06:41,580 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:06:41,580 INFO L215 NwaCegarLoop]: trace histogram [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, 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, 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] [2024-11-16 08:06:41,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 08:06:41,580 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:06:41,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:06:41,581 INFO L85 PathProgramCache]: Analyzing trace with hash -815972564, now seen corresponding path program 1 times [2024-11-16 08:06:41,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:06:41,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662488316] [2024-11-16 08:06:41,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:06:41,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:06:41,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:06:41,730 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 71 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-16 08:06:41,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:06:41,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662488316] [2024-11-16 08:06:41,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662488316] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:06:41,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1550007408] [2024-11-16 08:06:41,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:06:41,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:06:41,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:06:41,733 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 08:06:41,735 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 08:06:41,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:06:41,862 INFO L255 TraceCheckSpWp]: Trace formula consists of 611 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-16 08:06:41,867 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:06:42,082 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-16 08:06:42,082 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 08:06:42,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1550007408] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:06:42,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 08:06:42,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-16 08:06:42,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30612893] [2024-11-16 08:06:42,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:06:42,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:06:42,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:06:42,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:06:42,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:06:42,084 INFO L87 Difference]: Start difference. First operand 942 states and 991 transitions. Second operand has 5 states, 5 states have (on average 46.2) internal successors, (231), 5 states have internal predecessors, (231), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:42,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:06:42,151 INFO L93 Difference]: Finished difference Result 1373 states and 1444 transitions. [2024-11-16 08:06:42,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:06:42,152 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 46.2) internal successors, (231), 5 states have internal predecessors, (231), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 241 [2024-11-16 08:06:42,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:06:42,156 INFO L225 Difference]: With dead ends: 1373 [2024-11-16 08:06:42,156 INFO L226 Difference]: Without dead ends: 805 [2024-11-16 08:06:42,157 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-16 08:06:42,157 INFO L432 NwaCegarLoop]: 301 mSDtfsCounter, 315 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:06:42,158 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [315 Valid, 592 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:06:42,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 805 states. [2024-11-16 08:06:42,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 805 to 805. [2024-11-16 08:06:42,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 805 states, 801 states have (on average 1.0511860174781522) internal successors, (842), 803 states have internal predecessors, (842), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:42,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 805 states to 805 states and 845 transitions. [2024-11-16 08:06:42,183 INFO L78 Accepts]: Start accepts. Automaton has 805 states and 845 transitions. Word has length 241 [2024-11-16 08:06:42,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:06:42,183 INFO L471 AbstractCegarLoop]: Abstraction has 805 states and 845 transitions. [2024-11-16 08:06:42,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 46.2) internal successors, (231), 5 states have internal predecessors, (231), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:42,184 INFO L276 IsEmpty]: Start isEmpty. Operand 805 states and 845 transitions. [2024-11-16 08:06:42,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2024-11-16 08:06:42,187 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:06:42,187 INFO L215 NwaCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:06:42,204 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-16 08:06:42,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:06:42,388 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:06:42,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:06:42,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1786523816, now seen corresponding path program 1 times [2024-11-16 08:06:42,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:06:42,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901591689] [2024-11-16 08:06:42,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:06:42,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:06:42,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:06:42,540 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-16 08:06:42,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:06:42,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901591689] [2024-11-16 08:06:42,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901591689] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:06:42,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:06:42,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:06:42,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620129374] [2024-11-16 08:06:42,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:06:42,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:06:42,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:06:42,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:06:42,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:06:42,542 INFO L87 Difference]: Start difference. First operand 805 states and 845 transitions. Second operand has 7 states, 7 states have (on average 32.285714285714285) internal successors, (226), 7 states have internal predecessors, (226), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:42,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:06:42,659 INFO L93 Difference]: Finished difference Result 820 states and 859 transitions. [2024-11-16 08:06:42,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:06:42,660 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 32.285714285714285) internal successors, (226), 7 states have internal predecessors, (226), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 245 [2024-11-16 08:06:42,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:06:42,663 INFO L225 Difference]: With dead ends: 820 [2024-11-16 08:06:42,664 INFO L226 Difference]: Without dead ends: 816 [2024-11-16 08:06:42,664 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-16 08:06:42,664 INFO L432 NwaCegarLoop]: 345 mSDtfsCounter, 299 mSDsluCounter, 1408 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 1753 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:06:42,665 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 1753 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:06:42,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 816 states. [2024-11-16 08:06:42,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 816 to 804. [2024-11-16 08:06:42,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 804 states, 801 states have (on average 1.048689138576779) internal successors, (840), 802 states have internal predecessors, (840), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:42,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 804 states to 804 states and 842 transitions. [2024-11-16 08:06:42,689 INFO L78 Accepts]: Start accepts. Automaton has 804 states and 842 transitions. Word has length 245 [2024-11-16 08:06:42,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:06:42,690 INFO L471 AbstractCegarLoop]: Abstraction has 804 states and 842 transitions. [2024-11-16 08:06:42,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 32.285714285714285) internal successors, (226), 7 states have internal predecessors, (226), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:42,690 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 842 transitions. [2024-11-16 08:06:42,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2024-11-16 08:06:42,693 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:06:42,693 INFO L215 NwaCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:06:42,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 08:06:42,693 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:06:42,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:06:42,694 INFO L85 PathProgramCache]: Analyzing trace with hash -233606465, now seen corresponding path program 1 times [2024-11-16 08:06:42,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:06:42,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329972941] [2024-11-16 08:06:42,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:06:42,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:06:42,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:06:42,796 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-16 08:06:42,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:06:42,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329972941] [2024-11-16 08:06:42,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329972941] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:06:42,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:06:42,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 08:06:42,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631087682] [2024-11-16 08:06:42,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:06:42,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:06:42,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:06:42,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:06:42,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:06:42,798 INFO L87 Difference]: Start difference. First operand 804 states and 842 transitions. Second operand has 5 states, 5 states have (on average 45.4) internal successors, (227), 5 states have internal predecessors, (227), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:42,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:06:42,856 INFO L93 Difference]: Finished difference Result 958 states and 999 transitions. [2024-11-16 08:06:42,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 08:06:42,857 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 45.4) internal successors, (227), 5 states have internal predecessors, (227), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 246 [2024-11-16 08:06:42,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:06:42,861 INFO L225 Difference]: With dead ends: 958 [2024-11-16 08:06:42,861 INFO L226 Difference]: Without dead ends: 801 [2024-11-16 08:06:42,861 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:06:42,862 INFO L432 NwaCegarLoop]: 342 mSDtfsCounter, 224 mSDsluCounter, 781 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 1123 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:06:42,862 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 1123 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:06:42,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 801 states. [2024-11-16 08:06:42,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 801 to 797. [2024-11-16 08:06:42,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 795 states have (on average 1.0415094339622641) internal successors, (828), 795 states have internal predecessors, (828), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:42,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 829 transitions. [2024-11-16 08:06:42,885 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 829 transitions. Word has length 246 [2024-11-16 08:06:42,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:06:42,886 INFO L471 AbstractCegarLoop]: Abstraction has 797 states and 829 transitions. [2024-11-16 08:06:42,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 45.4) internal successors, (227), 5 states have internal predecessors, (227), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:42,886 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 829 transitions. [2024-11-16 08:06:42,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2024-11-16 08:06:42,890 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:06:42,891 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:06:42,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 08:06:42,891 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:06:42,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:06:42,891 INFO L85 PathProgramCache]: Analyzing trace with hash -29944088, now seen corresponding path program 1 times [2024-11-16 08:06:42,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:06:42,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489475922] [2024-11-16 08:06:42,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:06:42,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:06:42,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:06:43,552 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 18 proven. 89 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:06:43,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:06:43,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489475922] [2024-11-16 08:06:43,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489475922] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:06:43,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1411277284] [2024-11-16 08:06:43,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:06:43,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:06:43,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:06:43,556 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 08:06:43,557 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-16 08:06:43,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:06:43,719 INFO L255 TraceCheckSpWp]: Trace formula consists of 780 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-16 08:06:43,724 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:06:44,393 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 18 proven. 89 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:06:44,394 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 08:06:45,006 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 14 proven. 93 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:06:45,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1411277284] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 08:06:45,007 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 08:06:45,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17, 17] total 28 [2024-11-16 08:06:45,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079798028] [2024-11-16 08:06:45,008 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 08:06:45,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-16 08:06:45,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:06:45,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-16 08:06:45,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2024-11-16 08:06:45,011 INFO L87 Difference]: Start difference. First operand 797 states and 829 transitions. Second operand has 28 states, 28 states have (on average 18.5) internal successors, (518), 28 states have internal predecessors, (518), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:45,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:06:45,581 INFO L93 Difference]: Finished difference Result 809 states and 841 transitions. [2024-11-16 08:06:45,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-16 08:06:45,581 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 18.5) internal successors, (518), 28 states have internal predecessors, (518), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 334 [2024-11-16 08:06:45,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:06:45,585 INFO L225 Difference]: With dead ends: 809 [2024-11-16 08:06:45,585 INFO L226 Difference]: Without dead ends: 0 [2024-11-16 08:06:45,586 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 702 GetRequests, 660 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 313 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=203, Invalid=1689, Unknown=0, NotChecked=0, Total=1892 [2024-11-16 08:06:45,586 INFO L432 NwaCegarLoop]: 459 mSDtfsCounter, 653 mSDsluCounter, 8719 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 653 SdHoareTripleChecker+Valid, 9178 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 08:06:45,587 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [653 Valid, 9178 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 08:06:45,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-16 08:06:45,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-16 08:06:45,587 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 08:06:45,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-16 08:06:45,590 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 334 [2024-11-16 08:06:45,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:06:45,590 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-16 08:06:45,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 18.5) internal successors, (518), 28 states have internal predecessors, (518), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:06:45,591 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-16 08:06:45,591 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-16 08:06:45,593 INFO L782 garLoopResultBuilder]: Registering result SAFE for location errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-16 08:06:45,612 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-16 08:06:45,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:06:45,802 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:06:45,804 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-16 08:06:57,805 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 08:06:57,846 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 08:06:57 BoogieIcfgContainer [2024-11-16 08:06:57,846 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 08:06:57,847 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 08:06:57,847 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 08:06:57,847 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 08:06:57,848 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:06:27" (3/4) ... [2024-11-16 08:06:57,850 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-16 08:06:57,855 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure error [2024-11-16 08:06:57,870 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2024-11-16 08:06:57,871 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-16 08:06:57,872 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-16 08:06:57,873 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-16 08:06:58,062 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-16 08:06:58,064 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-16 08:06:58,064 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 08:06:58,065 INFO L158 Benchmark]: Toolchain (without parser) took 31994.19ms. Allocated memory was 151.0MB in the beginning and 1.5GB in the end (delta: 1.4GB). Free memory was 97.7MB in the beginning and 580.1MB in the end (delta: -482.5MB). Peak memory consumption was 877.4MB. Max. memory is 16.1GB. [2024-11-16 08:06:58,065 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 151.0MB. Free memory is still 110.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 08:06:58,066 INFO L158 Benchmark]: CACSL2BoogieTranslator took 504.37ms. Allocated memory is still 151.0MB. Free memory was 97.7MB in the beginning and 74.6MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-16 08:06:58,066 INFO L158 Benchmark]: Boogie Procedure Inliner took 91.71ms. Allocated memory was 151.0MB in the beginning and 190.8MB in the end (delta: 39.8MB). Free memory was 74.6MB in the beginning and 161.3MB in the end (delta: -86.7MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. [2024-11-16 08:06:58,067 INFO L158 Benchmark]: Boogie Preprocessor took 53.56ms. Allocated memory is still 190.8MB. Free memory was 161.3MB in the beginning and 158.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-16 08:06:58,067 INFO L158 Benchmark]: IcfgBuilder took 1058.92ms. Allocated memory is still 190.8MB. Free memory was 158.2MB in the beginning and 102.6MB in the end (delta: 55.6MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. [2024-11-16 08:06:58,067 INFO L158 Benchmark]: TraceAbstraction took 30062.20ms. Allocated memory was 190.8MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 102.6MB in the beginning and 595.9MB in the end (delta: -493.3MB). Peak memory consumption was 926.5MB. Max. memory is 16.1GB. [2024-11-16 08:06:58,068 INFO L158 Benchmark]: Witness Printer took 217.23ms. Allocated memory is still 1.5GB. Free memory was 595.9MB in the beginning and 580.1MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-16 08:06:58,069 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 151.0MB. Free memory is still 110.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 504.37ms. Allocated memory is still 151.0MB. Free memory was 97.7MB in the beginning and 74.6MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 91.71ms. Allocated memory was 151.0MB in the beginning and 190.8MB in the end (delta: 39.8MB). Free memory was 74.6MB in the beginning and 161.3MB in the end (delta: -86.7MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.56ms. Allocated memory is still 190.8MB. Free memory was 161.3MB in the beginning and 158.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 1058.92ms. Allocated memory is still 190.8MB. Free memory was 158.2MB in the beginning and 102.6MB in the end (delta: 55.6MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. * TraceAbstraction took 30062.20ms. Allocated memory was 190.8MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 102.6MB in the beginning and 595.9MB in the end (delta: -493.3MB). Peak memory consumption was 926.5MB. Max. memory is 16.1GB. * Witness Printer took 217.23ms. Allocated memory is still 1.5GB. Free memory was 595.9MB in the beginning and 580.1MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. 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: 20]: 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 2 procedures, 355 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 17.9s, OverallIterations: 22, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 7.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11151 SdHoareTripleChecker+Valid, 3.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11151 mSDsluCounter, 37150 SdHoareTripleChecker+Invalid, 2.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 24861 mSDsCounter, 446 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2881 IncrementalHoareTripleChecker+Invalid, 3327 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 446 mSolverCounterUnsat, 12289 mSDtfsCounter, 2881 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1448 GetRequests, 1332 SyntacticMatches, 0 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 345 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14789occurred in iteration=13, InterpolantAutomatonStates: 121, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.7s AutomataMinimizationTime, 22 MinimizatonAttempts, 17827 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 4020 NumberOfCodeBlocks, 4020 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 4327 ConstructedInterpolants, 0 QuantifiedInterpolants, 11011 SizeOfPredicates, 10 NumberOfNonLiveVariables, 2435 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 27 InterpolantComputations, 21 PerfectInterpolantSequences, 542/853 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: 638]: Location Invariant Derived location invariant: null - InvariantResult [Line: 134]: Location Invariant Derived location invariant: null - InvariantResult [Line: 879]: Location Invariant Derived location invariant: null - InvariantResult [Line: 1255]: Location Invariant Derived location invariant: null - InvariantResult [Line: 495]: Location Invariant Derived location invariant: null - InvariantResult [Line: 1119]: Location Invariant Derived location invariant: null - InvariantResult [Line: 145]: Location Invariant Derived location invariant: null - InvariantResult [Line: 876]: Location Invariant Derived location invariant: null - InvariantResult [Line: 485]: Location Invariant Derived location invariant: null - InvariantResult [Line: 528]: Location Invariant Derived location invariant: null - InvariantResult [Line: 288]: Location Invariant Derived location invariant: null - InvariantResult [Line: 178]: Location Invariant Derived location invariant: null - InvariantResult [Line: 1001]: Location Invariant Derived location invariant: null - ProcedureContractResult [Line: 16]: Procedure Contract for error Derived contract for procedure error. Requires: 0 Ensures: (0 && (((((((((((((((((((((((((((((((((((((((((m_run_st == \old(m_run_st)) && (m_run_i == \old(m_run_i))) && (m_run_pc == \old(m_run_pc))) && (s_memory0 == \old(s_memory0))) && (s_run_st == \old(s_run_st))) && (s_run_i == \old(s_run_i))) && (s_run_pc == \old(s_run_pc))) && (c_m_lock == \old(c_m_lock))) && (c_m_ev == \old(c_m_ev))) && (c_req_type == \old(c_req_type))) && (c_req_a == \old(c_req_a))) && (c_req_d == \old(c_req_d))) && (c_rsp_type == \old(c_rsp_type))) && (c_rsp_status == \old(c_rsp_status))) && (c_rsp_d == \old(c_rsp_d))) && (c_empty_req == \old(c_empty_req))) && (c_empty_rsp == \old(c_empty_rsp))) && (c_read_req_ev == \old(c_read_req_ev))) && (c_write_req_ev == \old(c_write_req_ev))) && (c_read_rsp_ev == \old(c_read_rsp_ev))) && (c_write_rsp_ev == \old(c_write_rsp_ev))) && (d_t == \old(d_t))) && (a_t == \old(a_t))) && (req_t_type == \old(req_t_type))) && (req_t_a == \old(req_t_a))) && (req_t_d == \old(req_t_d))) && (rsp_t_type == \old(rsp_t_type))) && (rsp_t_status == \old(rsp_t_status))) && (rsp_t_d == \old(rsp_t_d))) && (req_tt_type == \old(req_tt_type))) && (req_tt_a == \old(req_tt_a))) && (req_tt_d == \old(req_tt_d))) && (rsp_tt_type == \old(rsp_tt_type))) && (rsp_tt_status == \old(rsp_tt_status))) && (rsp_tt_d == \old(rsp_tt_d))) && (req_t_type___0 == \old(req_t_type___0))) && (req_t_a___0 == \old(req_t_a___0))) && (req_t_d___0 == \old(req_t_d___0))) && (rsp_t_type___0 == \old(rsp_t_type___0))) && (rsp_t_status___0 == \old(rsp_t_status___0))) && (rsp_t_d___0 == \old(rsp_t_d___0)))) RESULT: Ultimate proved your program to be correct! [2024-11-16 08:06:58,105 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE