./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/systemc/pc_sfifo_2.cil-1.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/pc_sfifo_2.cil-1.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 b74079121634b4e5d8b815834e604eed77442466d93875e78a8cab3fe135fa1f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 08:07:08,643 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 08:07:08,685 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 08:07:08,691 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 08:07:08,692 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 08:07:08,727 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 08:07:08,742 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 08:07:08,742 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 08:07:08,743 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 08:07:08,743 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 08:07:08,743 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 08:07:08,743 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 08:07:08,744 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 08:07:08,744 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 08:07:08,744 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 08:07:08,745 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 08:07:08,745 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 08:07:08,747 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 08:07:08,748 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 08:07:08,748 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 08:07:08,750 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 08:07:08,750 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 08:07:08,751 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 08:07:08,751 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 08:07:08,751 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 08:07:08,751 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 08:07:08,751 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 08:07:08,752 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 08:07:08,752 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 08:07:08,752 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 08:07:08,752 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 08:07:08,752 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 08:07:08,753 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:07:08,753 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 08:07:08,753 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 08:07:08,753 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 08:07:08,754 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 08:07:08,754 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 08:07:08,754 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 08:07:08,756 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 08:07:08,756 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 08:07:08,757 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 08:07:08,757 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b74079121634b4e5d8b815834e604eed77442466d93875e78a8cab3fe135fa1f [2024-11-16 08:07:08,970 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 08:07:08,987 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 08:07:08,989 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 08:07:08,990 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 08:07:08,991 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 08:07:08,992 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/pc_sfifo_2.cil-1.c [2024-11-16 08:07:10,326 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 08:07:10,481 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 08:07:10,482 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/pc_sfifo_2.cil-1.c [2024-11-16 08:07:10,493 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de43fb1ff/985f8eeb1a13418487e585b2c74af8af/FLAG792684884 [2024-11-16 08:07:10,506 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de43fb1ff/985f8eeb1a13418487e585b2c74af8af [2024-11-16 08:07:10,509 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 08:07:10,510 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 08:07:10,511 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 08:07:10,511 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 08:07:10,515 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 08:07:10,516 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:07:10" (1/1) ... [2024-11-16 08:07:10,517 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2815581e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:10, skipping insertion in model container [2024-11-16 08:07:10,517 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:07:10" (1/1) ... [2024-11-16 08:07:10,539 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 08:07:10,684 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/pc_sfifo_2.cil-1.c[643,656] [2024-11-16 08:07:10,726 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:07:10,739 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 08:07:10,748 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/pc_sfifo_2.cil-1.c[643,656] [2024-11-16 08:07:10,770 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:07:10,788 INFO L204 MainTranslator]: Completed translation [2024-11-16 08:07:10,788 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:10 WrapperNode [2024-11-16 08:07:10,788 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 08:07:10,789 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 08:07:10,790 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 08:07:10,790 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 08:07:10,796 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:10" (1/1) ... [2024-11-16 08:07:10,809 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:10" (1/1) ... [2024-11-16 08:07:10,832 INFO L138 Inliner]: procedures = 29, calls = 31, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 185 [2024-11-16 08:07:10,835 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 08:07:10,836 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 08:07:10,836 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 08:07:10,836 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 08:07:10,845 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:10" (1/1) ... [2024-11-16 08:07:10,845 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:10" (1/1) ... [2024-11-16 08:07:10,847 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:10" (1/1) ... [2024-11-16 08:07:10,862 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 08:07:10,863 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:10" (1/1) ... [2024-11-16 08:07:10,863 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:10" (1/1) ... [2024-11-16 08:07:10,866 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:10" (1/1) ... [2024-11-16 08:07:10,867 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:10" (1/1) ... [2024-11-16 08:07:10,867 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:10" (1/1) ... [2024-11-16 08:07:10,868 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:10" (1/1) ... [2024-11-16 08:07:10,870 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 08:07:10,870 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 08:07:10,871 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 08:07:10,871 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 08:07:10,871 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:10" (1/1) ... [2024-11-16 08:07:10,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:07:10,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:07:10,913 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 08:07:10,916 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 08:07:10,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 08:07:10,963 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-11-16 08:07:10,963 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-11-16 08:07:10,963 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2024-11-16 08:07:10,963 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2024-11-16 08:07:10,963 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-16 08:07:10,963 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-16 08:07:10,963 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-16 08:07:10,965 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-16 08:07:10,965 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-16 08:07:10,965 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-16 08:07:10,965 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-16 08:07:10,965 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-16 08:07:10,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 08:07:10,965 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-16 08:07:10,965 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-16 08:07:10,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 08:07:10,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 08:07:10,966 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2024-11-16 08:07:10,966 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2024-11-16 08:07:11,037 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 08:07:11,040 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 08:07:11,285 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2024-11-16 08:07:11,286 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 08:07:11,302 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 08:07:11,303 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 08:07:11,303 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:07:11 BoogieIcfgContainer [2024-11-16 08:07:11,304 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 08:07:11,306 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 08:07:11,306 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 08:07:11,309 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 08:07:11,309 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:07:10" (1/3) ... [2024-11-16 08:07:11,310 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bf5ac67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:07:11, skipping insertion in model container [2024-11-16 08:07:11,310 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:10" (2/3) ... [2024-11-16 08:07:11,310 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bf5ac67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:07:11, skipping insertion in model container [2024-11-16 08:07:11,311 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:07:11" (3/3) ... [2024-11-16 08:07:11,312 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_2.cil-1.c [2024-11-16 08:07:11,326 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 08:07:11,326 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 08:07:11,378 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 08:07:11,383 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;@5bfabb42, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 08:07:11,384 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 08:07:11,388 INFO L276 IsEmpty]: Start isEmpty. Operand has 121 states, 97 states have (on average 1.422680412371134) internal successors, (138), 101 states have internal predecessors, (138), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-16 08:07:11,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-16 08:07:11,398 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:07:11,399 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] [2024-11-16 08:07:11,399 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:07:11,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:07:11,404 INFO L85 PathProgramCache]: Analyzing trace with hash -918786949, now seen corresponding path program 1 times [2024-11-16 08:07:11,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:07:11,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76712128] [2024-11-16 08:07:11,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:07:11,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:07:11,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:11,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:07:11,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:11,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 08:07:11,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:11,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:07:11,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:11,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:07:11,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:11,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 08:07:11,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:11,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 08:07:11,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:11,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-16 08:07:11,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:11,920 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 08:07:11,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:07:11,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76712128] [2024-11-16 08:07:11,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76712128] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:07:11,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:07:11,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 08:07:11,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58671391] [2024-11-16 08:07:11,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:07:11,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 08:07:11,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:07:11,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 08:07:11,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-16 08:07:11,954 INFO L87 Difference]: Start difference. First operand has 121 states, 97 states have (on average 1.422680412371134) internal successors, (138), 101 states have internal predecessors, (138), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 08:07:12,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:07:12,686 INFO L93 Difference]: Finished difference Result 382 states and 541 transitions. [2024-11-16 08:07:12,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:07:12,689 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 68 [2024-11-16 08:07:12,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:07:12,698 INFO L225 Difference]: With dead ends: 382 [2024-11-16 08:07:12,698 INFO L226 Difference]: Without dead ends: 260 [2024-11-16 08:07:12,702 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2024-11-16 08:07:12,705 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 345 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 08:07:12,706 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 603 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 08:07:12,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2024-11-16 08:07:12,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 220. [2024-11-16 08:07:12,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 178 states have (on average 1.3370786516853932) internal successors, (238), 182 states have internal predecessors, (238), 25 states have call successors, (25), 15 states have call predecessors, (25), 16 states have return successors, (28), 24 states have call predecessors, (28), 23 states have call successors, (28) [2024-11-16 08:07:12,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 291 transitions. [2024-11-16 08:07:12,778 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 291 transitions. Word has length 68 [2024-11-16 08:07:12,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:07:12,778 INFO L471 AbstractCegarLoop]: Abstraction has 220 states and 291 transitions. [2024-11-16 08:07:12,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 08:07:12,779 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 291 transitions. [2024-11-16 08:07:12,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-16 08:07:12,782 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:07:12,782 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] [2024-11-16 08:07:12,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 08:07:12,783 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:07:12,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:07:12,783 INFO L85 PathProgramCache]: Analyzing trace with hash 424219831, now seen corresponding path program 1 times [2024-11-16 08:07:12,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:07:12,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001908663] [2024-11-16 08:07:12,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:07:12,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:07:12,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:12,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:07:12,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:12,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 08:07:12,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:12,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:07:12,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:12,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:07:12,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:12,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 08:07:12,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:12,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 08:07:12,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:12,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-16 08:07:12,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:12,992 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 08:07:12,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:07:12,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001908663] [2024-11-16 08:07:12,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001908663] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:07:12,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:07:12,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 08:07:12,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753707433] [2024-11-16 08:07:12,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:07:12,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 08:07:12,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:07:12,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 08:07:12,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 08:07:12,995 INFO L87 Difference]: Start difference. First operand 220 states and 291 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 08:07:13,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:07:13,629 INFO L93 Difference]: Finished difference Result 608 states and 809 transitions. [2024-11-16 08:07:13,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-16 08:07:13,630 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 68 [2024-11-16 08:07:13,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:07:13,636 INFO L225 Difference]: With dead ends: 608 [2024-11-16 08:07:13,637 INFO L226 Difference]: Without dead ends: 404 [2024-11-16 08:07:13,638 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-11-16 08:07:13,641 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 482 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 722 SdHoareTripleChecker+Invalid, 676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 08:07:13,642 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [489 Valid, 722 Invalid, 676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 08:07:13,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2024-11-16 08:07:13,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 329. [2024-11-16 08:07:13,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 267 states have (on average 1.3295880149812733) internal successors, (355), 273 states have internal predecessors, (355), 36 states have call successors, (36), 22 states have call predecessors, (36), 25 states have return successors, (47), 36 states have call predecessors, (47), 34 states have call successors, (47) [2024-11-16 08:07:13,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 438 transitions. [2024-11-16 08:07:13,703 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 438 transitions. Word has length 68 [2024-11-16 08:07:13,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:07:13,703 INFO L471 AbstractCegarLoop]: Abstraction has 329 states and 438 transitions. [2024-11-16 08:07:13,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 08:07:13,704 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 438 transitions. [2024-11-16 08:07:13,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-16 08:07:13,706 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:07:13,706 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] [2024-11-16 08:07:13,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 08:07:13,706 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:07:13,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:07:13,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1117612536, now seen corresponding path program 1 times [2024-11-16 08:07:13,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:07:13,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057422873] [2024-11-16 08:07:13,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:07:13,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:07:13,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:13,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:07:13,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:13,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 08:07:13,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:13,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:07:13,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:13,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:07:13,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:13,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 08:07:13,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:13,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 08:07:13,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:13,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-16 08:07:13,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:13,863 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 08:07:13,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:07:13,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057422873] [2024-11-16 08:07:13,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057422873] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:07:13,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:07:13,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:07:13,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25281208] [2024-11-16 08:07:13,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:07:13,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 08:07:13,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:07:13,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 08:07:13,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 08:07:13,865 INFO L87 Difference]: Start difference. First operand 329 states and 438 transitions. Second operand has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 08:07:14,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:07:14,223 INFO L93 Difference]: Finished difference Result 668 states and 889 transitions. [2024-11-16 08:07:14,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 08:07:14,224 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 68 [2024-11-16 08:07:14,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:07:14,226 INFO L225 Difference]: With dead ends: 668 [2024-11-16 08:07:14,226 INFO L226 Difference]: Without dead ends: 361 [2024-11-16 08:07:14,230 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-16 08:07:14,231 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 114 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 08:07:14,232 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 600 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 08:07:14,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2024-11-16 08:07:14,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 334. [2024-11-16 08:07:14,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 271 states have (on average 1.3173431734317342) internal successors, (357), 277 states have internal predecessors, (357), 36 states have call successors, (36), 22 states have call predecessors, (36), 26 states have return successors, (48), 37 states have call predecessors, (48), 34 states have call successors, (48) [2024-11-16 08:07:14,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 441 transitions. [2024-11-16 08:07:14,263 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 441 transitions. Word has length 68 [2024-11-16 08:07:14,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:07:14,264 INFO L471 AbstractCegarLoop]: Abstraction has 334 states and 441 transitions. [2024-11-16 08:07:14,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 08:07:14,264 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 441 transitions. [2024-11-16 08:07:14,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-16 08:07:14,266 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:07:14,266 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] [2024-11-16 08:07:14,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 08:07:14,266 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:07:14,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:07:14,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1241685783, now seen corresponding path program 1 times [2024-11-16 08:07:14,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:07:14,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067457011] [2024-11-16 08:07:14,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:07:14,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:07:14,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:14,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:07:14,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:14,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 08:07:14,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:14,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:07:14,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:14,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:07:14,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:14,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 08:07:14,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:14,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 08:07:14,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:14,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-16 08:07:14,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:14,421 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 08:07:14,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:07:14,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067457011] [2024-11-16 08:07:14,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067457011] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:07:14,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:07:14,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 08:07:14,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650080203] [2024-11-16 08:07:14,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:07:14,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 08:07:14,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:07:14,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 08:07:14,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-16 08:07:14,425 INFO L87 Difference]: Start difference. First operand 334 states and 441 transitions. Second operand has 10 states, 10 states have (on average 5.3) internal successors, (53), 7 states have internal predecessors, (53), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-16 08:07:15,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:07:15,615 INFO L93 Difference]: Finished difference Result 1850 states and 2431 transitions. [2024-11-16 08:07:15,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-16 08:07:15,616 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 7 states have internal predecessors, (53), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 68 [2024-11-16 08:07:15,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:07:15,622 INFO L225 Difference]: With dead ends: 1850 [2024-11-16 08:07:15,622 INFO L226 Difference]: Without dead ends: 1520 [2024-11-16 08:07:15,624 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=257, Invalid=1075, Unknown=0, NotChecked=0, Total=1332 [2024-11-16 08:07:15,625 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 1513 mSDsluCounter, 855 mSDsCounter, 0 mSdLazyCounter, 1069 mSolverCounterSat, 369 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1527 SdHoareTripleChecker+Valid, 1032 SdHoareTripleChecker+Invalid, 1438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 369 IncrementalHoareTripleChecker+Valid, 1069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 08:07:15,626 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1527 Valid, 1032 Invalid, 1438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [369 Valid, 1069 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 08:07:15,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1520 states. [2024-11-16 08:07:15,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1520 to 1368. [2024-11-16 08:07:15,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1368 states, 1119 states have (on average 1.2770330652368187) internal successors, (1429), 1140 states have internal predecessors, (1429), 124 states have call successors, (124), 105 states have call predecessors, (124), 124 states have return successors, (162), 124 states have call predecessors, (162), 122 states have call successors, (162) [2024-11-16 08:07:15,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1368 states to 1368 states and 1715 transitions. [2024-11-16 08:07:15,707 INFO L78 Accepts]: Start accepts. Automaton has 1368 states and 1715 transitions. Word has length 68 [2024-11-16 08:07:15,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:07:15,708 INFO L471 AbstractCegarLoop]: Abstraction has 1368 states and 1715 transitions. [2024-11-16 08:07:15,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 7 states have internal predecessors, (53), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-16 08:07:15,709 INFO L276 IsEmpty]: Start isEmpty. Operand 1368 states and 1715 transitions. [2024-11-16 08:07:15,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 08:07:15,710 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:07:15,710 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] [2024-11-16 08:07:15,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 08:07:15,711 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:07:15,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:07:15,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1861150058, now seen corresponding path program 1 times [2024-11-16 08:07:15,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:07:15,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547941587] [2024-11-16 08:07:15,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:07:15,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:07:15,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:15,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:07:15,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:15,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 08:07:15,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:15,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:07:15,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:15,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:07:15,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:15,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 08:07:15,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:15,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 08:07:15,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:15,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-16 08:07:15,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:15,830 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 08:07:15,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:07:15,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547941587] [2024-11-16 08:07:15,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547941587] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:07:15,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:07:15,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:07:15,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597240243] [2024-11-16 08:07:15,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:07:15,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 08:07:15,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:07:15,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 08:07:15,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 08:07:15,836 INFO L87 Difference]: Start difference. First operand 1368 states and 1715 transitions. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 08:07:16,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:07:16,237 INFO L93 Difference]: Finished difference Result 2828 states and 3557 transitions. [2024-11-16 08:07:16,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-16 08:07:16,238 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 71 [2024-11-16 08:07:16,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:07:16,245 INFO L225 Difference]: With dead ends: 2828 [2024-11-16 08:07:16,245 INFO L226 Difference]: Without dead ends: 1470 [2024-11-16 08:07:16,248 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2024-11-16 08:07:16,249 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 118 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:07:16,249 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 597 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:07:16,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1470 states. [2024-11-16 08:07:16,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1470 to 1398. [2024-11-16 08:07:16,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1398 states, 1143 states have (on average 1.2642169728783903) internal successors, (1445), 1164 states have internal predecessors, (1445), 124 states have call successors, (124), 105 states have call predecessors, (124), 130 states have return successors, (168), 130 states have call predecessors, (168), 122 states have call successors, (168) [2024-11-16 08:07:16,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1398 states to 1398 states and 1737 transitions. [2024-11-16 08:07:16,332 INFO L78 Accepts]: Start accepts. Automaton has 1398 states and 1737 transitions. Word has length 71 [2024-11-16 08:07:16,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:07:16,333 INFO L471 AbstractCegarLoop]: Abstraction has 1398 states and 1737 transitions. [2024-11-16 08:07:16,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 08:07:16,333 INFO L276 IsEmpty]: Start isEmpty. Operand 1398 states and 1737 transitions. [2024-11-16 08:07:16,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 08:07:16,351 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:07:16,352 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] [2024-11-16 08:07:16,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 08:07:16,353 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:07:16,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:07:16,354 INFO L85 PathProgramCache]: Analyzing trace with hash 89150197, now seen corresponding path program 1 times [2024-11-16 08:07:16,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:07:16,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190885186] [2024-11-16 08:07:16,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:07:16,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:07:16,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:16,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:07:16,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:16,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 08:07:16,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:16,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:07:16,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:16,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:07:16,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:16,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 08:07:16,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:16,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 08:07:16,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:16,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-16 08:07:16,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:16,494 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 08:07:16,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:07:16,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190885186] [2024-11-16 08:07:16,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190885186] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:07:16,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:07:16,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 08:07:16,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024887191] [2024-11-16 08:07:16,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:07:16,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 08:07:16,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:07:16,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 08:07:16,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 08:07:16,497 INFO L87 Difference]: Start difference. First operand 1398 states and 1737 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 08:07:17,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:07:17,041 INFO L93 Difference]: Finished difference Result 2786 states and 3417 transitions. [2024-11-16 08:07:17,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-16 08:07:17,042 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 71 [2024-11-16 08:07:17,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:07:17,049 INFO L225 Difference]: With dead ends: 2786 [2024-11-16 08:07:17,050 INFO L226 Difference]: Without dead ends: 1654 [2024-11-16 08:07:17,052 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2024-11-16 08:07:17,053 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 435 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 08:07:17,054 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 437 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 08:07:17,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1654 states. [2024-11-16 08:07:17,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1654 to 1332. [2024-11-16 08:07:17,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1332 states, 1093 states have (on average 1.2589204025617566) internal successors, (1376), 1109 states have internal predecessors, (1376), 118 states have call successors, (118), 100 states have call predecessors, (118), 120 states have return successors, (153), 123 states have call predecessors, (153), 116 states have call successors, (153) [2024-11-16 08:07:17,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1332 states to 1332 states and 1647 transitions. [2024-11-16 08:07:17,122 INFO L78 Accepts]: Start accepts. Automaton has 1332 states and 1647 transitions. Word has length 71 [2024-11-16 08:07:17,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:07:17,123 INFO L471 AbstractCegarLoop]: Abstraction has 1332 states and 1647 transitions. [2024-11-16 08:07:17,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 08:07:17,123 INFO L276 IsEmpty]: Start isEmpty. Operand 1332 states and 1647 transitions. [2024-11-16 08:07:17,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 08:07:17,123 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:07:17,124 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] [2024-11-16 08:07:17,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 08:07:17,124 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:07:17,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:07:17,125 INFO L85 PathProgramCache]: Analyzing trace with hash 439950134, now seen corresponding path program 1 times [2024-11-16 08:07:17,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:07:17,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279199368] [2024-11-16 08:07:17,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:07:17,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:07:17,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:17,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:07:17,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:17,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 08:07:17,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:17,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:07:17,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:17,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:07:17,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:17,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 08:07:17,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:17,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 08:07:17,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:17,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-16 08:07:17,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:17,216 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 08:07:17,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:07:17,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279199368] [2024-11-16 08:07:17,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279199368] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:07:17,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:07:17,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:07:17,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800404043] [2024-11-16 08:07:17,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:07:17,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:07:17,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:07:17,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:07:17,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:07:17,218 INFO L87 Difference]: Start difference. First operand 1332 states and 1647 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 4 states have internal predecessors, (56), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 08:07:17,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:07:17,646 INFO L93 Difference]: Finished difference Result 3931 states and 4868 transitions. [2024-11-16 08:07:17,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-16 08:07:17,646 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 4 states have internal predecessors, (56), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 71 [2024-11-16 08:07:17,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:07:17,656 INFO L225 Difference]: With dead ends: 3931 [2024-11-16 08:07:17,656 INFO L226 Difference]: Without dead ends: 2610 [2024-11-16 08:07:17,660 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2024-11-16 08:07:17,661 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 412 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 420 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:07:17,661 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [420 Valid, 350 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:07:17,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2610 states. [2024-11-16 08:07:17,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2610 to 2489. [2024-11-16 08:07:17,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2489 states, 2007 states have (on average 1.2267065271549575) internal successors, (2462), 2040 states have internal predecessors, (2462), 237 states have call successors, (237), 199 states have call predecessors, (237), 244 states have return successors, (344), 251 states have call predecessors, (344), 235 states have call successors, (344) [2024-11-16 08:07:17,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2489 states to 2489 states and 3043 transitions. [2024-11-16 08:07:17,803 INFO L78 Accepts]: Start accepts. Automaton has 2489 states and 3043 transitions. Word has length 71 [2024-11-16 08:07:17,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:07:17,803 INFO L471 AbstractCegarLoop]: Abstraction has 2489 states and 3043 transitions. [2024-11-16 08:07:17,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 4 states have internal predecessors, (56), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 08:07:17,804 INFO L276 IsEmpty]: Start isEmpty. Operand 2489 states and 3043 transitions. [2024-11-16 08:07:17,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-16 08:07:17,804 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:07:17,804 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] [2024-11-16 08:07:17,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 08:07:17,805 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:07:17,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:07:17,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1558915645, now seen corresponding path program 1 times [2024-11-16 08:07:17,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:07:17,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110933799] [2024-11-16 08:07:17,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:07:17,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:07:17,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:17,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:07:17,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:17,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 08:07:17,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:17,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:07:17,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:17,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:07:17,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:17,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 08:07:17,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:17,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 08:07:17,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:17,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-16 08:07:17,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:17,891 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 08:07:17,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:07:17,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110933799] [2024-11-16 08:07:17,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110933799] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:07:17,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:07:17,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:07:17,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637036840] [2024-11-16 08:07:17,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:07:17,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 08:07:17,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:07:17,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 08:07:17,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 08:07:17,894 INFO L87 Difference]: Start difference. First operand 2489 states and 3043 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 08:07:18,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:07:18,355 INFO L93 Difference]: Finished difference Result 6178 states and 7561 transitions. [2024-11-16 08:07:18,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 08:07:18,355 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 72 [2024-11-16 08:07:18,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:07:18,369 INFO L225 Difference]: With dead ends: 6178 [2024-11-16 08:07:18,370 INFO L226 Difference]: Without dead ends: 3705 [2024-11-16 08:07:18,374 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:07:18,375 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 310 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:07:18,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 333 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:07:18,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3705 states. [2024-11-16 08:07:18,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3705 to 3409. [2024-11-16 08:07:18,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3409 states, 2741 states have (on average 1.2196278730390369) internal successors, (3343), 2779 states have internal predecessors, (3343), 329 states have call successors, (329), 279 states have call predecessors, (329), 338 states have return successors, (458), 352 states have call predecessors, (458), 327 states have call successors, (458) [2024-11-16 08:07:18,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3409 states to 3409 states and 4130 transitions. [2024-11-16 08:07:18,576 INFO L78 Accepts]: Start accepts. Automaton has 3409 states and 4130 transitions. Word has length 72 [2024-11-16 08:07:18,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:07:18,576 INFO L471 AbstractCegarLoop]: Abstraction has 3409 states and 4130 transitions. [2024-11-16 08:07:18,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 08:07:18,577 INFO L276 IsEmpty]: Start isEmpty. Operand 3409 states and 4130 transitions. [2024-11-16 08:07:18,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-16 08:07:18,578 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:07:18,578 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 08:07:18,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 08:07:18,578 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:07:18,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:07:18,578 INFO L85 PathProgramCache]: Analyzing trace with hash -2015665145, now seen corresponding path program 1 times [2024-11-16 08:07:18,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:07:18,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44104154] [2024-11-16 08:07:18,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:07:18,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:07:18,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:18,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:07:18,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:18,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 08:07:18,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:18,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:07:18,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:18,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:07:18,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:18,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 08:07:18,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:18,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 08:07:18,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:18,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-16 08:07:18,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:18,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:07:18,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:07:18,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44104154] [2024-11-16 08:07:18,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44104154] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:07:18,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:07:18,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:07:18,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207295877] [2024-11-16 08:07:18,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:07:18,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 08:07:18,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:07:18,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 08:07:18,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 08:07:18,642 INFO L87 Difference]: Start difference. First operand 3409 states and 4130 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 08:07:19,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:07:19,187 INFO L93 Difference]: Finished difference Result 7736 states and 9359 transitions. [2024-11-16 08:07:19,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 08:07:19,188 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 82 [2024-11-16 08:07:19,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:07:19,208 INFO L225 Difference]: With dead ends: 7736 [2024-11-16 08:07:19,208 INFO L226 Difference]: Without dead ends: 4341 [2024-11-16 08:07:19,215 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:07:19,216 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 369 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:07:19,216 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [378 Valid, 310 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:07:19,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4341 states. [2024-11-16 08:07:19,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4341 to 4021. [2024-11-16 08:07:19,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4021 states, 3239 states have (on average 1.2167335597406608) internal successors, (3941), 3281 states have internal predecessors, (3941), 385 states have call successors, (385), 329 states have call predecessors, (385), 396 states have return successors, (531), 412 states have call predecessors, (531), 383 states have call successors, (531) [2024-11-16 08:07:19,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4021 states to 4021 states and 4857 transitions. [2024-11-16 08:07:19,494 INFO L78 Accepts]: Start accepts. Automaton has 4021 states and 4857 transitions. Word has length 82 [2024-11-16 08:07:19,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:07:19,495 INFO L471 AbstractCegarLoop]: Abstraction has 4021 states and 4857 transitions. [2024-11-16 08:07:19,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 08:07:19,495 INFO L276 IsEmpty]: Start isEmpty. Operand 4021 states and 4857 transitions. [2024-11-16 08:07:19,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-16 08:07:19,497 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:07:19,497 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 08:07:19,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 08:07:19,497 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:07:19,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:07:19,497 INFO L85 PathProgramCache]: Analyzing trace with hash -833033050, now seen corresponding path program 1 times [2024-11-16 08:07:19,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:07:19,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083777512] [2024-11-16 08:07:19,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:07:19,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:07:19,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:19,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:07:19,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:19,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 08:07:19,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:19,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:07:19,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:19,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:07:19,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:19,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 08:07:19,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:19,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 08:07:19,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:19,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-16 08:07:19,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:19,595 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:07:19,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:07:19,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083777512] [2024-11-16 08:07:19,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083777512] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:07:19,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:07:19,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:07:19,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807176216] [2024-11-16 08:07:19,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:07:19,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:07:19,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:07:19,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:07:19,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:07:19,597 INFO L87 Difference]: Start difference. First operand 4021 states and 4857 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 08:07:20,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:07:20,198 INFO L93 Difference]: Finished difference Result 5166 states and 6211 transitions. [2024-11-16 08:07:20,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 08:07:20,199 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 85 [2024-11-16 08:07:20,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:07:20,240 INFO L225 Difference]: With dead ends: 5166 [2024-11-16 08:07:20,241 INFO L226 Difference]: Without dead ends: 5162 [2024-11-16 08:07:20,243 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2024-11-16 08:07:20,243 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 562 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 572 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 08:07:20,244 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [572 Valid, 289 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 08:07:20,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5162 states. [2024-11-16 08:07:20,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5162 to 4513. [2024-11-16 08:07:20,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4513 states, 3624 states have (on average 1.210540838852097) internal successors, (4387), 3669 states have internal predecessors, (4387), 435 states have call successors, (435), 373 states have call predecessors, (435), 453 states have return successors, (608), 472 states have call predecessors, (608), 434 states have call successors, (608) [2024-11-16 08:07:20,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4513 states to 4513 states and 5430 transitions. [2024-11-16 08:07:20,592 INFO L78 Accepts]: Start accepts. Automaton has 4513 states and 5430 transitions. Word has length 85 [2024-11-16 08:07:20,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:07:20,593 INFO L471 AbstractCegarLoop]: Abstraction has 4513 states and 5430 transitions. [2024-11-16 08:07:20,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 08:07:20,593 INFO L276 IsEmpty]: Start isEmpty. Operand 4513 states and 5430 transitions. [2024-11-16 08:07:20,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-16 08:07:20,595 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:07:20,595 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:07:20,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 08:07:20,595 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:07:20,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:07:20,596 INFO L85 PathProgramCache]: Analyzing trace with hash -58435514, now seen corresponding path program 1 times [2024-11-16 08:07:20,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:07:20,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588085108] [2024-11-16 08:07:20,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:07:20,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:07:20,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:20,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:07:20,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:20,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 08:07:20,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:20,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:07:20,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:20,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:07:20,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:20,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 08:07:20,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:20,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 08:07:20,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:20,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-16 08:07:20,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:20,725 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:07:20,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:07:20,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588085108] [2024-11-16 08:07:20,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588085108] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:07:20,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1495033961] [2024-11-16 08:07:20,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:07:20,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:07:20,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:07:20,730 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 08:07:20,735 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 08:07:20,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:20,806 INFO L255 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-16 08:07:20,814 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:07:21,131 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:07:21,132 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 08:07:21,244 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:07:21,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1495033961] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 08:07:21,245 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 08:07:21,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 4] total 10 [2024-11-16 08:07:21,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523044924] [2024-11-16 08:07:21,246 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 08:07:21,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 08:07:21,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:07:21,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 08:07:21,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-16 08:07:21,248 INFO L87 Difference]: Start difference. First operand 4513 states and 5430 transitions. Second operand has 10 states, 10 states have (on average 14.4) internal successors, (144), 7 states have internal predecessors, (144), 4 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-16 08:07:22,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:07:22,709 INFO L93 Difference]: Finished difference Result 9219 states and 11027 transitions. [2024-11-16 08:07:22,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-16 08:07:22,710 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.4) internal successors, (144), 7 states have internal predecessors, (144), 4 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 86 [2024-11-16 08:07:22,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:07:22,752 INFO L225 Difference]: With dead ends: 9219 [2024-11-16 08:07:22,753 INFO L226 Difference]: Without dead ends: 9215 [2024-11-16 08:07:22,760 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=163, Invalid=593, Unknown=0, NotChecked=0, Total=756 [2024-11-16 08:07:22,760 INFO L432 NwaCegarLoop]: 201 mSDtfsCounter, 839 mSDsluCounter, 868 mSDsCounter, 0 mSdLazyCounter, 988 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 878 SdHoareTripleChecker+Valid, 1069 SdHoareTripleChecker+Invalid, 1114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 08:07:22,761 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [878 Valid, 1069 Invalid, 1114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 988 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 08:07:22,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9215 states. [2024-11-16 08:07:23,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9215 to 8259. [2024-11-16 08:07:23,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8259 states, 6628 states have (on average 1.2068497284248643) internal successors, (7999), 6708 states have internal predecessors, (7999), 794 states have call successors, (794), 687 states have call predecessors, (794), 836 states have return successors, (1109), 865 states have call predecessors, (1109), 793 states have call successors, (1109) [2024-11-16 08:07:23,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8259 states to 8259 states and 9902 transitions. [2024-11-16 08:07:23,463 INFO L78 Accepts]: Start accepts. Automaton has 8259 states and 9902 transitions. Word has length 86 [2024-11-16 08:07:23,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:07:23,464 INFO L471 AbstractCegarLoop]: Abstraction has 8259 states and 9902 transitions. [2024-11-16 08:07:23,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.4) internal successors, (144), 7 states have internal predecessors, (144), 4 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-16 08:07:23,464 INFO L276 IsEmpty]: Start isEmpty. Operand 8259 states and 9902 transitions. [2024-11-16 08:07:23,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-16 08:07:23,466 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:07:23,466 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:07:23,483 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-16 08:07:23,667 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,SelfDestructingSolverStorable10 [2024-11-16 08:07:23,668 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:07:23,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:07:23,668 INFO L85 PathProgramCache]: Analyzing trace with hash -73480956, now seen corresponding path program 2 times [2024-11-16 08:07:23,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:07:23,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698292848] [2024-11-16 08:07:23,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:07:23,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:07:23,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:23,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:07:23,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:23,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 08:07:23,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:23,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:07:23,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:23,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:07:23,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:23,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 08:07:23,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:23,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 08:07:23,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:23,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-16 08:07:23,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:23,732 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:07:23,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:07:23,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698292848] [2024-11-16 08:07:23,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698292848] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:07:23,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:07:23,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:07:23,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724170836] [2024-11-16 08:07:23,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:07:23,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 08:07:23,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:07:23,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 08:07:23,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 08:07:23,734 INFO L87 Difference]: Start difference. First operand 8259 states and 9902 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 08:07:24,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:07:24,492 INFO L93 Difference]: Finished difference Result 11145 states and 13403 transitions. [2024-11-16 08:07:24,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:07:24,493 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 91 [2024-11-16 08:07:24,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:07:24,516 INFO L225 Difference]: With dead ends: 11145 [2024-11-16 08:07:24,516 INFO L226 Difference]: Without dead ends: 4359 [2024-11-16 08:07:24,530 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-16 08:07:24,531 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 228 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 08:07:24,531 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 471 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 08:07:24,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4359 states. [2024-11-16 08:07:24,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4359 to 3225. [2024-11-16 08:07:24,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3225 states, 2600 states have (on average 1.1938461538461538) internal successors, (3104), 2626 states have internal predecessors, (3104), 313 states have call successors, (313), 269 states have call predecessors, (313), 311 states have return successors, (408), 331 states have call predecessors, (408), 312 states have call successors, (408) [2024-11-16 08:07:24,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3225 states to 3225 states and 3825 transitions. [2024-11-16 08:07:24,880 INFO L78 Accepts]: Start accepts. Automaton has 3225 states and 3825 transitions. Word has length 91 [2024-11-16 08:07:24,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:07:24,881 INFO L471 AbstractCegarLoop]: Abstraction has 3225 states and 3825 transitions. [2024-11-16 08:07:24,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 08:07:24,881 INFO L276 IsEmpty]: Start isEmpty. Operand 3225 states and 3825 transitions. [2024-11-16 08:07:24,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-16 08:07:24,882 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:07:24,882 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] [2024-11-16 08:07:24,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 08:07:24,882 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:07:24,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:07:24,883 INFO L85 PathProgramCache]: Analyzing trace with hash 610317348, now seen corresponding path program 1 times [2024-11-16 08:07:24,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:07:24,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371043181] [2024-11-16 08:07:24,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:07:24,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:07:24,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:24,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:07:24,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:24,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 08:07:24,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:24,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:07:24,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:24,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:07:24,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:24,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 08:07:24,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:24,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 08:07:24,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:24,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-16 08:07:24,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:24,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 08:07:24,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:24,980 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-16 08:07:24,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:07:24,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371043181] [2024-11-16 08:07:24,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371043181] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:07:24,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:07:24,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 08:07:24,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971935766] [2024-11-16 08:07:24,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:07:24,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 08:07:24,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:07:24,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 08:07:24,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-16 08:07:24,982 INFO L87 Difference]: Start difference. First operand 3225 states and 3825 transitions. Second operand has 8 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-16 08:07:25,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:07:25,872 INFO L93 Difference]: Finished difference Result 9557 states and 11370 transitions. [2024-11-16 08:07:25,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-16 08:07:25,873 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 93 [2024-11-16 08:07:25,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:07:25,889 INFO L225 Difference]: With dead ends: 9557 [2024-11-16 08:07:25,890 INFO L226 Difference]: Without dead ends: 5470 [2024-11-16 08:07:25,896 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2024-11-16 08:07:25,896 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 644 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 656 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 08:07:25,897 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [656 Valid, 545 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 08:07:25,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5470 states. [2024-11-16 08:07:26,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5470 to 5205. [2024-11-16 08:07:26,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5205 states, 4145 states have (on average 1.1744270205066345) internal successors, (4868), 4208 states have internal predecessors, (4868), 513 states have call successors, (513), 441 states have call predecessors, (513), 546 states have return successors, (758), 557 states have call predecessors, (758), 512 states have call successors, (758) [2024-11-16 08:07:26,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5205 states to 5205 states and 6139 transitions. [2024-11-16 08:07:26,227 INFO L78 Accepts]: Start accepts. Automaton has 5205 states and 6139 transitions. Word has length 93 [2024-11-16 08:07:26,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:07:26,228 INFO L471 AbstractCegarLoop]: Abstraction has 5205 states and 6139 transitions. [2024-11-16 08:07:26,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-16 08:07:26,228 INFO L276 IsEmpty]: Start isEmpty. Operand 5205 states and 6139 transitions. [2024-11-16 08:07:26,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-16 08:07:26,230 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:07:26,231 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:07:26,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 08:07:26,231 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:07:26,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:07:26,231 INFO L85 PathProgramCache]: Analyzing trace with hash -768605896, now seen corresponding path program 1 times [2024-11-16 08:07:26,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:07:26,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094301876] [2024-11-16 08:07:26,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:07:26,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:07:26,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:26,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:07:26,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:26,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 08:07:26,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:26,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:07:26,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:26,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:07:26,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:26,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 08:07:26,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:26,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 08:07:26,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:26,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-16 08:07:26,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:26,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 08:07:26,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:26,336 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-16 08:07:26,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:07:26,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094301876] [2024-11-16 08:07:26,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094301876] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:07:26,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:07:26,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:07:26,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515240637] [2024-11-16 08:07:26,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:07:26,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 08:07:26,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:07:26,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 08:07:26,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-16 08:07:26,337 INFO L87 Difference]: Start difference. First operand 5205 states and 6139 transitions. Second operand has 9 states, 9 states have (on average 10.0) internal successors, (90), 6 states have internal predecessors, (90), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-16 08:07:27,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:07:27,233 INFO L93 Difference]: Finished difference Result 8876 states and 10468 transitions. [2024-11-16 08:07:27,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-16 08:07:27,234 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.0) internal successors, (90), 6 states have internal predecessors, (90), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 111 [2024-11-16 08:07:27,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:07:27,251 INFO L225 Difference]: With dead ends: 8876 [2024-11-16 08:07:27,251 INFO L226 Difference]: Without dead ends: 4250 [2024-11-16 08:07:27,259 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=540, Unknown=0, NotChecked=0, Total=702 [2024-11-16 08:07:27,259 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 923 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 230 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 937 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 230 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 08:07:27,259 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [937 Valid, 743 Invalid, 898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [230 Valid, 668 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 08:07:27,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4250 states. [2024-11-16 08:07:27,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4250 to 3804. [2024-11-16 08:07:27,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3804 states, 3010 states have (on average 1.1564784053156145) internal successors, (3481), 3061 states have internal predecessors, (3481), 378 states have call successors, (378), 323 states have call predecessors, (378), 415 states have return successors, (527), 421 states have call predecessors, (527), 377 states have call successors, (527) [2024-11-16 08:07:27,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3804 states to 3804 states and 4386 transitions. [2024-11-16 08:07:27,534 INFO L78 Accepts]: Start accepts. Automaton has 3804 states and 4386 transitions. Word has length 111 [2024-11-16 08:07:27,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:07:27,534 INFO L471 AbstractCegarLoop]: Abstraction has 3804 states and 4386 transitions. [2024-11-16 08:07:27,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.0) internal successors, (90), 6 states have internal predecessors, (90), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-16 08:07:27,535 INFO L276 IsEmpty]: Start isEmpty. Operand 3804 states and 4386 transitions. [2024-11-16 08:07:27,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-16 08:07:27,537 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:07:27,537 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 08:07:27,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 08:07:27,537 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:07:27,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:07:27,538 INFO L85 PathProgramCache]: Analyzing trace with hash 56675152, now seen corresponding path program 1 times [2024-11-16 08:07:27,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:07:27,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753677703] [2024-11-16 08:07:27,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:07:27,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:07:27,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:27,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:07:27,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:27,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 08:07:27,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:27,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:07:27,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:27,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:07:27,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:27,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 08:07:27,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:27,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 08:07:27,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:27,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-16 08:07:27,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:27,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 08:07:27,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:27,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-16 08:07:27,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:27,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 08:07:27,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:27,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-16 08:07:27,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:27,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:07:27,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:27,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 08:07:27,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:27,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 08:07:27,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:27,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-16 08:07:27,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:27,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-16 08:07:27,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:27,690 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 25 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-16 08:07:27,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:07:27,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753677703] [2024-11-16 08:07:27,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753677703] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:07:27,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [309214541] [2024-11-16 08:07:27,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:07:27,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:07:27,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:07:27,693 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 08:07:27,694 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 08:07:27,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:27,769 INFO L255 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-16 08:07:27,772 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:07:27,811 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-16 08:07:27,812 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 08:07:27,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [309214541] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:07:27,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 08:07:27,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 12 [2024-11-16 08:07:27,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911538646] [2024-11-16 08:07:27,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:07:27,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 08:07:27,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:07:27,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 08:07:27,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-16 08:07:27,815 INFO L87 Difference]: Start difference. First operand 3804 states and 4386 transitions. Second operand has 6 states, 6 states have (on average 19.5) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-16 08:07:28,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:07:28,028 INFO L93 Difference]: Finished difference Result 5805 states and 6704 transitions. [2024-11-16 08:07:28,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 08:07:28,029 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 158 [2024-11-16 08:07:28,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:07:28,038 INFO L225 Difference]: With dead ends: 5805 [2024-11-16 08:07:28,039 INFO L226 Difference]: Without dead ends: 2017 [2024-11-16 08:07:28,045 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-16 08:07:28,046 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 0 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 691 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:07:28,046 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 691 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:07:28,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2017 states. [2024-11-16 08:07:28,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2017 to 2017. [2024-11-16 08:07:28,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2017 states, 1669 states have (on average 1.1443978430197723) internal successors, (1910), 1683 states have internal predecessors, (1910), 167 states have call successors, (167), 137 states have call predecessors, (167), 180 states have return successors, (234), 196 states have call predecessors, (234), 166 states have call successors, (234) [2024-11-16 08:07:28,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2017 states to 2017 states and 2311 transitions. [2024-11-16 08:07:28,264 INFO L78 Accepts]: Start accepts. Automaton has 2017 states and 2311 transitions. Word has length 158 [2024-11-16 08:07:28,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:07:28,265 INFO L471 AbstractCegarLoop]: Abstraction has 2017 states and 2311 transitions. [2024-11-16 08:07:28,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-16 08:07:28,265 INFO L276 IsEmpty]: Start isEmpty. Operand 2017 states and 2311 transitions. [2024-11-16 08:07:28,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-16 08:07:28,267 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:07:28,267 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:07:28,284 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 08:07:28,468 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,SelfDestructingSolverStorable14 [2024-11-16 08:07:28,469 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:07:28,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:07:28,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1336342162, now seen corresponding path program 1 times [2024-11-16 08:07:28,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:07:28,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810789792] [2024-11-16 08:07:28,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:07:28,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:07:28,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:28,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:07:28,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:28,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 08:07:28,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:28,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:07:28,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:28,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:07:28,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:28,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 08:07:28,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:28,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 08:07:28,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:28,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-16 08:07:28,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:28,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 08:07:28,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:28,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 08:07:28,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:28,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 08:07:28,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:28,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 08:07:28,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:28,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:07:28,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:28,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 08:07:28,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:28,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-16 08:07:28,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:28,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 08:07:28,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:28,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-16 08:07:28,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:28,575 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-11-16 08:07:28,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:07:28,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810789792] [2024-11-16 08:07:28,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810789792] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:07:28,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:07:28,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:07:28,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747179928] [2024-11-16 08:07:28,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:07:28,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 08:07:28,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:07:28,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 08:07:28,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 08:07:28,577 INFO L87 Difference]: Start difference. First operand 2017 states and 2311 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-16 08:07:28,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:07:28,909 INFO L93 Difference]: Finished difference Result 2066 states and 2362 transitions. [2024-11-16 08:07:28,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 08:07:28,909 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 160 [2024-11-16 08:07:28,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:07:28,919 INFO L225 Difference]: With dead ends: 2066 [2024-11-16 08:07:28,919 INFO L226 Difference]: Without dead ends: 1657 [2024-11-16 08:07:28,921 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-16 08:07:28,921 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 237 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:07:28,922 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 262 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:07:28,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1657 states. [2024-11-16 08:07:29,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1657 to 1612. [2024-11-16 08:07:29,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1612 states, 1348 states have (on average 1.1498516320474776) internal successors, (1550), 1359 states have internal predecessors, (1550), 126 states have call successors, (126), 102 states have call predecessors, (126), 137 states have return successors, (179), 150 states have call predecessors, (179), 125 states have call successors, (179) [2024-11-16 08:07:29,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1612 states to 1612 states and 1855 transitions. [2024-11-16 08:07:29,089 INFO L78 Accepts]: Start accepts. Automaton has 1612 states and 1855 transitions. Word has length 160 [2024-11-16 08:07:29,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:07:29,090 INFO L471 AbstractCegarLoop]: Abstraction has 1612 states and 1855 transitions. [2024-11-16 08:07:29,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-16 08:07:29,090 INFO L276 IsEmpty]: Start isEmpty. Operand 1612 states and 1855 transitions. [2024-11-16 08:07:29,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-16 08:07:29,093 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:07:29,093 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:07:29,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 08:07:29,093 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:07:29,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:07:29,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1530787552, now seen corresponding path program 1 times [2024-11-16 08:07:29,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:07:29,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254156739] [2024-11-16 08:07:29,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:07:29,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:07:29,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:29,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:07:29,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:29,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 08:07:29,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:29,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:07:29,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:29,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:07:29,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:29,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 08:07:29,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:29,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 08:07:29,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:29,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-16 08:07:29,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:29,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-16 08:07:29,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:29,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-16 08:07:29,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:29,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-16 08:07:29,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:29,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-16 08:07:29,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:29,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:07:29,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:29,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 08:07:29,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:29,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-16 08:07:29,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:29,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-16 08:07:29,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:29,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-16 08:07:29,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:29,203 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-16 08:07:29,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:07:29,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254156739] [2024-11-16 08:07:29,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254156739] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:07:29,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:07:29,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:07:29,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371545991] [2024-11-16 08:07:29,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:07:29,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:07:29,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:07:29,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:07:29,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:07:29,206 INFO L87 Difference]: Start difference. First operand 1612 states and 1855 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 4 states have internal predecessors, (113), 3 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-16 08:07:29,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:07:29,583 INFO L93 Difference]: Finished difference Result 3073 states and 3549 transitions. [2024-11-16 08:07:29,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:07:29,583 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 4 states have internal predecessors, (113), 3 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 180 [2024-11-16 08:07:29,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:07:29,591 INFO L225 Difference]: With dead ends: 3073 [2024-11-16 08:07:29,592 INFO L226 Difference]: Without dead ends: 1589 [2024-11-16 08:07:29,595 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:07:29,596 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 156 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:07:29,596 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 559 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:07:29,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1589 states. [2024-11-16 08:07:29,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1589 to 1491. [2024-11-16 08:07:29,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1491 states, 1251 states have (on average 1.1534772182254196) internal successors, (1443), 1262 states have internal predecessors, (1443), 114 states have call successors, (114), 92 states have call predecessors, (114), 125 states have return successors, (161), 136 states have call predecessors, (161), 113 states have call successors, (161) [2024-11-16 08:07:29,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1491 states to 1491 states and 1718 transitions. [2024-11-16 08:07:29,749 INFO L78 Accepts]: Start accepts. Automaton has 1491 states and 1718 transitions. Word has length 180 [2024-11-16 08:07:29,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:07:29,749 INFO L471 AbstractCegarLoop]: Abstraction has 1491 states and 1718 transitions. [2024-11-16 08:07:29,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 4 states have internal predecessors, (113), 3 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-16 08:07:29,750 INFO L276 IsEmpty]: Start isEmpty. Operand 1491 states and 1718 transitions. [2024-11-16 08:07:29,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-16 08:07:29,752 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:07:29,752 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:07:29,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 08:07:29,753 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:07:29,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:07:29,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1577919396, now seen corresponding path program 1 times [2024-11-16 08:07:29,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:07:29,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89877513] [2024-11-16 08:07:29,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:07:29,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:07:29,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:29,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:07:29,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:29,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 08:07:29,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:29,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:07:29,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:29,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:07:29,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:29,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 08:07:29,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:29,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 08:07:29,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:29,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-16 08:07:29,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:29,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-16 08:07:29,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:29,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-16 08:07:29,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:29,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 08:07:29,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:29,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 08:07:29,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:29,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:07:29,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:29,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 08:07:29,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:29,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-16 08:07:29,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:29,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 08:07:29,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:30,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-11-16 08:07:30,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:30,003 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 24 proven. 7 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-16 08:07:30,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:07:30,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89877513] [2024-11-16 08:07:30,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89877513] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:07:30,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1274326136] [2024-11-16 08:07:30,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:07:30,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:07:30,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:07:30,006 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 08:07:30,007 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 08:07:30,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:30,100 INFO L255 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-16 08:07:30,109 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:07:30,266 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 66 proven. 2 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-16 08:07:30,266 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 08:07:30,507 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 25 proven. 4 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-11-16 08:07:30,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1274326136] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 08:07:30,508 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 08:07:30,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 14 [2024-11-16 08:07:30,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654748728] [2024-11-16 08:07:30,509 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 08:07:30,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-16 08:07:30,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:07:30,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-16 08:07:30,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-11-16 08:07:30,511 INFO L87 Difference]: Start difference. First operand 1491 states and 1718 transitions. Second operand has 14 states, 14 states have (on average 20.357142857142858) internal successors, (285), 12 states have internal predecessors, (285), 6 states have call successors, (38), 8 states have call predecessors, (38), 10 states have return successors, (35), 6 states have call predecessors, (35), 6 states have call successors, (35) [2024-11-16 08:07:31,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:07:31,285 INFO L93 Difference]: Finished difference Result 3457 states and 4087 transitions. [2024-11-16 08:07:31,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-16 08:07:31,285 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 20.357142857142858) internal successors, (285), 12 states have internal predecessors, (285), 6 states have call successors, (38), 8 states have call predecessors, (38), 10 states have return successors, (35), 6 states have call predecessors, (35), 6 states have call successors, (35) Word has length 183 [2024-11-16 08:07:31,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:07:31,293 INFO L225 Difference]: With dead ends: 3457 [2024-11-16 08:07:31,294 INFO L226 Difference]: Without dead ends: 1912 [2024-11-16 08:07:31,297 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 399 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=220, Invalid=592, Unknown=0, NotChecked=0, Total=812 [2024-11-16 08:07:31,297 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 827 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 241 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 833 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 241 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 08:07:31,298 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [833 Valid, 516 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [241 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 08:07:31,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1912 states. [2024-11-16 08:07:31,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1912 to 1779. [2024-11-16 08:07:31,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1779 states, 1464 states have (on average 1.1311475409836065) internal successors, (1656), 1476 states have internal predecessors, (1656), 154 states have call successors, (154), 130 states have call predecessors, (154), 160 states have return successors, (230), 172 states have call predecessors, (230), 153 states have call successors, (230) [2024-11-16 08:07:31,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1779 states to 1779 states and 2040 transitions. [2024-11-16 08:07:31,417 INFO L78 Accepts]: Start accepts. Automaton has 1779 states and 2040 transitions. Word has length 183 [2024-11-16 08:07:31,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:07:31,418 INFO L471 AbstractCegarLoop]: Abstraction has 1779 states and 2040 transitions. [2024-11-16 08:07:31,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 20.357142857142858) internal successors, (285), 12 states have internal predecessors, (285), 6 states have call successors, (38), 8 states have call predecessors, (38), 10 states have return successors, (35), 6 states have call predecessors, (35), 6 states have call successors, (35) [2024-11-16 08:07:31,418 INFO L276 IsEmpty]: Start isEmpty. Operand 1779 states and 2040 transitions. [2024-11-16 08:07:31,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2024-11-16 08:07:31,425 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:07:31,426 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-16 08:07:31,439 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-16 08:07:31,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-16 08:07:31,627 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:07:31,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:07:31,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1462672325, now seen corresponding path program 1 times [2024-11-16 08:07:31,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:07:31,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686855512] [2024-11-16 08:07:31,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:07:31,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:07:31,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:31,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:07:31,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:31,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 08:07:31,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:31,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:07:31,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:31,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:07:31,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:31,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 08:07:31,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:31,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 08:07:31,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:31,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-16 08:07:31,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:31,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-16 08:07:31,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:31,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-16 08:07:31,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:31,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 08:07:31,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:31,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 08:07:31,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:31,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:07:31,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:31,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 08:07:31,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:31,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-16 08:07:31,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:31,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-16 08:07:31,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:31,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-11-16 08:07:31,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:31,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-11-16 08:07:31,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:31,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-11-16 08:07:31,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:31,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-11-16 08:07:31,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:31,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2024-11-16 08:07:31,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:31,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:07:31,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:31,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 08:07:31,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:31,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2024-11-16 08:07:31,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:31,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-11-16 08:07:31,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:31,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2024-11-16 08:07:31,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:31,800 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 100 proven. 16 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2024-11-16 08:07:31,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:07:31,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686855512] [2024-11-16 08:07:31,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686855512] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:07:31,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1153065301] [2024-11-16 08:07:31,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:07:31,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:07:31,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:07:31,803 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 08:07:31,804 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 08:07:31,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:31,910 INFO L255 TraceCheckSpWp]: Trace formula consists of 775 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-16 08:07:31,916 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:07:31,955 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 221 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2024-11-16 08:07:31,956 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 08:07:31,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1153065301] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:07:31,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 08:07:31,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-11-16 08:07:31,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36832568] [2024-11-16 08:07:31,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:07:31,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 08:07:31,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:07:31,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 08:07:31,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:07:31,959 INFO L87 Difference]: Start difference. First operand 1779 states and 2040 transitions. Second operand has 6 states, 6 states have (on average 27.833333333333332) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-16 08:07:32,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:07:32,082 INFO L93 Difference]: Finished difference Result 3439 states and 3956 transitions. [2024-11-16 08:07:32,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 08:07:32,083 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.833333333333332) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) Word has length 288 [2024-11-16 08:07:32,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:07:32,091 INFO L225 Difference]: With dead ends: 3439 [2024-11-16 08:07:32,092 INFO L226 Difference]: Without dead ends: 1779 [2024-11-16 08:07:32,095 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 333 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:07:32,096 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 0 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 686 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:07:32,096 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 686 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:07:32,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1779 states. [2024-11-16 08:07:32,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1779 to 1779. [2024-11-16 08:07:32,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1779 states, 1464 states have (on average 1.119535519125683) internal successors, (1639), 1476 states have internal predecessors, (1639), 154 states have call successors, (154), 130 states have call predecessors, (154), 160 states have return successors, (230), 172 states have call predecessors, (230), 153 states have call successors, (230) [2024-11-16 08:07:32,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1779 states to 1779 states and 2023 transitions. [2024-11-16 08:07:32,232 INFO L78 Accepts]: Start accepts. Automaton has 1779 states and 2023 transitions. Word has length 288 [2024-11-16 08:07:32,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:07:32,232 INFO L471 AbstractCegarLoop]: Abstraction has 1779 states and 2023 transitions. [2024-11-16 08:07:32,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.833333333333332) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-16 08:07:32,233 INFO L276 IsEmpty]: Start isEmpty. Operand 1779 states and 2023 transitions. [2024-11-16 08:07:32,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2024-11-16 08:07:32,237 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:07:32,238 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-16 08:07:32,252 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 08:07:32,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:07:32,441 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:07:32,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:07:32,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1009694647, now seen corresponding path program 1 times [2024-11-16 08:07:32,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:07:32,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637258728] [2024-11-16 08:07:32,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:07:32,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:07:32,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:32,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:07:32,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:32,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 08:07:32,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:32,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:07:32,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:32,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:07:32,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:32,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 08:07:32,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:32,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 08:07:32,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:32,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-16 08:07:32,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:32,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-16 08:07:32,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:32,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-16 08:07:32,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:32,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 08:07:32,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:32,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 08:07:32,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:32,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:07:32,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:32,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 08:07:32,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:32,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-16 08:07:32,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:32,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-16 08:07:32,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:32,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-11-16 08:07:32,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:32,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-11-16 08:07:32,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:32,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-11-16 08:07:32,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:32,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-11-16 08:07:32,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:32,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2024-11-16 08:07:32,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:32,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:07:32,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:32,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 08:07:32,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:32,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2024-11-16 08:07:32,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:32,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-11-16 08:07:32,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:32,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2024-11-16 08:07:32,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:32,583 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 100 proven. 16 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2024-11-16 08:07:32,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:07:32,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637258728] [2024-11-16 08:07:32,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637258728] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:07:32,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1653819735] [2024-11-16 08:07:32,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:07:32,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:07:32,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:07:32,586 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 08:07:32,589 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-16 08:07:32,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:32,699 INFO L255 TraceCheckSpWp]: Trace formula consists of 773 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-16 08:07:32,703 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:07:32,815 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 290 proven. 3 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-16 08:07:32,815 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 08:07:33,022 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 141 proven. 7 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2024-11-16 08:07:33,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1653819735] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 08:07:33,023 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 08:07:33,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 11 [2024-11-16 08:07:33,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044971937] [2024-11-16 08:07:33,025 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 08:07:33,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-16 08:07:33,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:07:33,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-16 08:07:33,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:07:33,029 INFO L87 Difference]: Start difference. First operand 1779 states and 2023 transitions. Second operand has 11 states, 11 states have (on average 23.09090909090909) internal successors, (254), 8 states have internal predecessors, (254), 4 states have call successors, (47), 8 states have call predecessors, (47), 8 states have return successors, (39), 4 states have call predecessors, (39), 4 states have call successors, (39) [2024-11-16 08:07:33,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:07:33,497 INFO L93 Difference]: Finished difference Result 2173 states and 2456 transitions. [2024-11-16 08:07:33,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-16 08:07:33,498 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.09090909090909) internal successors, (254), 8 states have internal predecessors, (254), 4 states have call successors, (47), 8 states have call predecessors, (47), 8 states have return successors, (39), 4 states have call predecessors, (39), 4 states have call successors, (39) Word has length 288 [2024-11-16 08:07:33,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:07:33,504 INFO L225 Difference]: With dead ends: 2173 [2024-11-16 08:07:33,504 INFO L226 Difference]: Without dead ends: 0 [2024-11-16 08:07:33,507 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 646 GetRequests, 622 SyntacticMatches, 4 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2024-11-16 08:07:33,509 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 439 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 647 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 440 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 08:07:33,510 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [440 Valid, 422 Invalid, 755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 647 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 08:07:33,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-16 08:07:33,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-16 08:07:33,513 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 08:07:33,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-16 08:07:33,518 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 288 [2024-11-16 08:07:33,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:07:33,518 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-16 08:07:33,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.09090909090909) internal successors, (254), 8 states have internal predecessors, (254), 4 states have call successors, (47), 8 states have call predecessors, (47), 8 states have return successors, (39), 4 states have call predecessors, (39), 4 states have call successors, (39) [2024-11-16 08:07:33,519 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-16 08:07:33,519 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-16 08:07:33,521 INFO L782 garLoopResultBuilder]: Registering result SAFE for location errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-16 08:07:33,537 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-16 08:07:33,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:07:33,726 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:07:33,728 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-16 08:07:40,892 WARN L286 SmtUtils]: Spent 5.42s on a formula simplification. DAG size of input: 93 DAG size of output: 55 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-16 08:07:55,607 WARN L286 SmtUtils]: Spent 14.62s on a formula simplification. DAG size of input: 115 DAG size of output: 102 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or)