./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label49+token_ring.03.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f 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/combinations/Problem05_label49+token_ring.03.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 45212159197fe0bc553796025c4b5584a047c150b6d840572b407bf4bd1f9446 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 22:19:51,861 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 22:19:51,934 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 22:19:51,939 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 22:19:51,942 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 22:19:51,974 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 22:19:51,976 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 22:19:51,976 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 22:19:51,977 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 22:19:51,978 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 22:19:51,978 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 22:19:51,979 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 22:19:51,979 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 22:19:51,980 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 22:19:51,980 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 22:19:51,980 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 22:19:51,981 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 22:19:51,981 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 22:19:51,984 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 22:19:51,984 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 22:19:51,986 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 22:19:51,987 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 22:19:51,987 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 22:19:51,987 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 22:19:51,988 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 22:19:51,988 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 22:19:51,989 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 22:19:51,989 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 22:19:51,989 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 22:19:51,990 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 22:19:51,990 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 22:19:51,990 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 22:19:51,991 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 22:19:51,991 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 22:19:51,992 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 22:19:51,992 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 22:19:51,992 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 22:19:51,993 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 22:19:51,993 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 22:19:51,993 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 22:19:51,993 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 22:19:51,994 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 22:19:51,994 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45212159197fe0bc553796025c4b5584a047c150b6d840572b407bf4bd1f9446 [2024-11-11 22:19:52,328 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 22:19:52,355 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 22:19:52,358 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 22:19:52,360 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 22:19:52,360 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 22:19:52,361 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label49+token_ring.03.cil-1.c [2024-11-11 22:19:53,829 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 22:19:54,436 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 22:19:54,437 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.03.cil-1.c [2024-11-11 22:19:54,506 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6ebd21e7/af547cde228f401bb1599790600e3836/FLAGcefa0e867 [2024-11-11 22:19:54,896 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6ebd21e7/af547cde228f401bb1599790600e3836 [2024-11-11 22:19:54,899 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 22:19:54,901 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 22:19:54,902 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 22:19:54,902 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 22:19:54,912 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 22:19:54,913 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 10:19:54" (1/1) ... [2024-11-11 22:19:54,914 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2021a2ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:19:54, skipping insertion in model container [2024-11-11 22:19:54,914 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 10:19:54" (1/1) ... [2024-11-11 22:19:55,095 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 22:19:56,893 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/combinations/Problem05_label49+token_ring.03.cil-1.c[380593,380606] [2024-11-11 22:19:56,920 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/combinations/Problem05_label49+token_ring.03.cil-1.c[383339,383352] [2024-11-11 22:19:57,070 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 22:19:57,081 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 22:19:57,941 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/combinations/Problem05_label49+token_ring.03.cil-1.c[380593,380606] [2024-11-11 22:19:57,947 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/combinations/Problem05_label49+token_ring.03.cil-1.c[383339,383352] [2024-11-11 22:19:57,967 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 22:19:58,029 INFO L204 MainTranslator]: Completed translation [2024-11-11 22:19:58,030 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:19:58 WrapperNode [2024-11-11 22:19:58,031 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 22:19:58,032 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 22:19:58,032 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 22:19:58,032 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 22:19:58,039 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:19:58" (1/1) ... [2024-11-11 22:19:58,121 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:19:58" (1/1) ... [2024-11-11 22:19:58,566 INFO L138 Inliner]: procedures = 50, calls = 51, calls flagged for inlining = 27, calls inlined = 27, statements flattened = 12699 [2024-11-11 22:19:58,571 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 22:19:58,576 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 22:19:58,576 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 22:19:58,576 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 22:19:58,591 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:19:58" (1/1) ... [2024-11-11 22:19:58,591 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:19:58" (1/1) ... [2024-11-11 22:19:58,657 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:19:58" (1/1) ... [2024-11-11 22:19:58,728 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]. [2024-11-11 22:19:58,729 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:19:58" (1/1) ... [2024-11-11 22:19:58,729 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:19:58" (1/1) ... [2024-11-11 22:19:58,939 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:19:58" (1/1) ... [2024-11-11 22:19:59,010 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:19:58" (1/1) ... [2024-11-11 22:19:59,062 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:19:58" (1/1) ... [2024-11-11 22:19:59,111 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:19:58" (1/1) ... [2024-11-11 22:19:59,280 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 22:19:59,286 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 22:19:59,286 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 22:19:59,286 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 22:19:59,288 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:19:58" (1/1) ... [2024-11-11 22:19:59,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 22:19:59,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 22:19:59,335 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) [2024-11-11 22:19:59,338 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 [2024-11-11 22:19:59,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 22:19:59,384 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-11 22:19:59,384 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-11 22:19:59,384 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-11 22:19:59,384 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-11 22:19:59,385 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-11 22:19:59,385 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-11 22:19:59,385 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-11-11 22:19:59,385 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-11-11 22:19:59,385 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-11 22:19:59,386 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-11 22:19:59,386 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-11 22:19:59,386 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-11 22:19:59,386 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-11 22:19:59,386 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-11 22:19:59,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 22:19:59,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 22:19:59,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 22:19:59,485 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 22:19:59,487 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 22:20:07,310 INFO L? ?]: Removed 1705 outVars from TransFormulas that were not future-live. [2024-11-11 22:20:07,310 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 22:20:07,379 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 22:20:07,379 INFO L316 CfgBuilder]: Removed 7 assume(true) statements. [2024-11-11 22:20:07,380 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 10:20:07 BoogieIcfgContainer [2024-11-11 22:20:07,380 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 22:20:07,382 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 22:20:07,382 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 22:20:07,385 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 22:20:07,386 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 10:19:54" (1/3) ... [2024-11-11 22:20:07,387 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e07968b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 10:20:07, skipping insertion in model container [2024-11-11 22:20:07,387 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:19:58" (2/3) ... [2024-11-11 22:20:07,387 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e07968b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 10:20:07, skipping insertion in model container [2024-11-11 22:20:07,387 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 10:20:07" (3/3) ... [2024-11-11 22:20:07,388 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label49+token_ring.03.cil-1.c [2024-11-11 22:20:07,406 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 22:20:07,407 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-11 22:20:07,605 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 22:20:07,611 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;@6cca473a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 22:20:07,612 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-11 22:20:07,631 INFO L276 IsEmpty]: Start isEmpty. Operand has 2352 states, 2323 states have (on average 1.8544984933275936) internal successors, (4308), 2328 states have internal predecessors, (4308), 19 states have call successors, (19), 7 states have call predecessors, (19), 7 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-11 22:20:07,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-11 22:20:07,643 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:20:07,644 INFO L218 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] [2024-11-11 22:20:07,645 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:20:07,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:20:07,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1300199463, now seen corresponding path program 1 times [2024-11-11 22:20:07,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:20:07,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995395288] [2024-11-11 22:20:07,663 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:20:07,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:20:07,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:08,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:20:08,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:08,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-11 22:20:08,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:08,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 22:20:08,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:08,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:20:08,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:08,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-11 22:20:08,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:08,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:20:08,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:20:08,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995395288] [2024-11-11 22:20:08,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995395288] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:20:08,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:20:08,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 22:20:08,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429092331] [2024-11-11 22:20:08,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:20:08,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 22:20:08,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:20:08,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 22:20:08,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-11 22:20:08,308 INFO L87 Difference]: Start difference. First operand has 2352 states, 2323 states have (on average 1.8544984933275936) internal successors, (4308), 2328 states have internal predecessors, (4308), 19 states have call successors, (19), 7 states have call predecessors, (19), 7 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:20:09,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:20:09,593 INFO L93 Difference]: Finished difference Result 4933 states and 9066 transitions. [2024-11-11 22:20:09,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 22:20:09,595 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 80 [2024-11-11 22:20:09,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:20:09,628 INFO L225 Difference]: With dead ends: 4933 [2024-11-11 22:20:09,628 INFO L226 Difference]: Without dead ends: 2522 [2024-11-11 22:20:09,639 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-11 22:20:09,642 INFO L435 NwaCegarLoop]: 4177 mSDtfsCounter, 4571 mSDsluCounter, 12522 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4581 SdHoareTripleChecker+Valid, 16699 SdHoareTripleChecker+Invalid, 839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-11 22:20:09,643 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4581 Valid, 16699 Invalid, 839 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [80 Valid, 759 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-11 22:20:09,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2522 states. [2024-11-11 22:20:09,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2522 to 2435. [2024-11-11 22:20:09,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2435 states, 2389 states have (on average 1.8271243197990792) internal successors, (4365), 2393 states have internal predecessors, (4365), 31 states have call successors, (31), 13 states have call predecessors, (31), 13 states have return successors, (32), 29 states have call predecessors, (32), 29 states have call successors, (32) [2024-11-11 22:20:09,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2435 states to 2435 states and 4428 transitions. [2024-11-11 22:20:09,806 INFO L78 Accepts]: Start accepts. Automaton has 2435 states and 4428 transitions. Word has length 80 [2024-11-11 22:20:09,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:20:09,807 INFO L471 AbstractCegarLoop]: Abstraction has 2435 states and 4428 transitions. [2024-11-11 22:20:09,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:20:09,808 INFO L276 IsEmpty]: Start isEmpty. Operand 2435 states and 4428 transitions. [2024-11-11 22:20:09,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-11 22:20:09,811 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:20:09,811 INFO L218 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] [2024-11-11 22:20:09,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-11 22:20:09,812 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:20:09,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:20:09,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1753327317, now seen corresponding path program 1 times [2024-11-11 22:20:09,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:20:09,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236906270] [2024-11-11 22:20:09,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:20:09,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:20:09,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:09,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:20:09,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:10,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-11 22:20:10,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:10,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 22:20:10,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:10,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:20:10,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:10,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-11 22:20:10,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:10,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:20:10,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:20:10,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236906270] [2024-11-11 22:20:10,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236906270] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:20:10,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:20:10,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:20:10,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358536716] [2024-11-11 22:20:10,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:20:10,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:20:10,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:20:10,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:20:10,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:20:10,090 INFO L87 Difference]: Start difference. First operand 2435 states and 4428 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:20:11,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:20:11,487 INFO L93 Difference]: Finished difference Result 3020 states and 5320 transitions. [2024-11-11 22:20:11,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:20:11,488 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 80 [2024-11-11 22:20:11,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:20:11,504 INFO L225 Difference]: With dead ends: 3020 [2024-11-11 22:20:11,505 INFO L226 Difference]: Without dead ends: 2717 [2024-11-11 22:20:11,508 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:20:11,510 INFO L435 NwaCegarLoop]: 4216 mSDtfsCounter, 4499 mSDsluCounter, 16674 mSDsCounter, 0 mSdLazyCounter, 1239 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4509 SdHoareTripleChecker+Valid, 20890 SdHoareTripleChecker+Invalid, 1286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:20:11,511 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4509 Valid, 20890 Invalid, 1286 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [47 Valid, 1239 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-11 22:20:11,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2717 states. [2024-11-11 22:20:11,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2717 to 2577. [2024-11-11 22:20:11,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2577 states, 2512 states have (on average 1.8105095541401275) internal successors, (4548), 2517 states have internal predecessors, (4548), 43 states have call successors, (43), 19 states have call predecessors, (43), 20 states have return successors, (46), 42 states have call predecessors, (46), 41 states have call successors, (46) [2024-11-11 22:20:11,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2577 states to 2577 states and 4637 transitions. [2024-11-11 22:20:11,798 INFO L78 Accepts]: Start accepts. Automaton has 2577 states and 4637 transitions. Word has length 80 [2024-11-11 22:20:11,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:20:11,800 INFO L471 AbstractCegarLoop]: Abstraction has 2577 states and 4637 transitions. [2024-11-11 22:20:11,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:20:11,802 INFO L276 IsEmpty]: Start isEmpty. Operand 2577 states and 4637 transitions. [2024-11-11 22:20:11,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-11 22:20:11,806 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:20:11,806 INFO L218 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] [2024-11-11 22:20:11,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-11 22:20:11,807 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:20:11,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:20:11,807 INFO L85 PathProgramCache]: Analyzing trace with hash 67147479, now seen corresponding path program 1 times [2024-11-11 22:20:11,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:20:11,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460420626] [2024-11-11 22:20:11,812 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:20:11,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:20:11,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:11,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:20:11,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:11,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-11 22:20:11,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:12,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 22:20:12,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:12,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:20:12,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:12,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-11 22:20:12,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:12,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:20:12,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:20:12,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460420626] [2024-11-11 22:20:12,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460420626] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:20:12,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:20:12,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:20:12,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073284426] [2024-11-11 22:20:12,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:20:12,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:20:12,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:20:12,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:20:12,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:20:12,075 INFO L87 Difference]: Start difference. First operand 2577 states and 4637 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:20:13,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:20:13,531 INFO L93 Difference]: Finished difference Result 3529 states and 6085 transitions. [2024-11-11 22:20:13,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:20:13,532 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 80 [2024-11-11 22:20:13,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:20:13,549 INFO L225 Difference]: With dead ends: 3529 [2024-11-11 22:20:13,549 INFO L226 Difference]: Without dead ends: 3084 [2024-11-11 22:20:13,553 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:20:13,555 INFO L435 NwaCegarLoop]: 4214 mSDtfsCounter, 4497 mSDsluCounter, 16674 mSDsCounter, 0 mSdLazyCounter, 1235 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4507 SdHoareTripleChecker+Valid, 20888 SdHoareTripleChecker+Invalid, 1284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:20:13,555 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4507 Valid, 20888 Invalid, 1284 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [49 Valid, 1235 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-11 22:20:13,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3084 states. [2024-11-11 22:20:13,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3084 to 2862. [2024-11-11 22:20:13,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2862 states, 2759 states have (on average 1.7814425516491483) internal successors, (4915), 2766 states have internal predecessors, (4915), 67 states have call successors, (67), 31 states have call predecessors, (67), 34 states have return successors, (78), 68 states have call predecessors, (78), 65 states have call successors, (78) [2024-11-11 22:20:13,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2862 states to 2862 states and 5060 transitions. [2024-11-11 22:20:13,679 INFO L78 Accepts]: Start accepts. Automaton has 2862 states and 5060 transitions. Word has length 80 [2024-11-11 22:20:13,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:20:13,680 INFO L471 AbstractCegarLoop]: Abstraction has 2862 states and 5060 transitions. [2024-11-11 22:20:13,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:20:13,680 INFO L276 IsEmpty]: Start isEmpty. Operand 2862 states and 5060 transitions. [2024-11-11 22:20:13,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-11 22:20:13,684 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:20:13,684 INFO L218 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] [2024-11-11 22:20:13,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-11 22:20:13,684 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:20:13,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:20:13,685 INFO L85 PathProgramCache]: Analyzing trace with hash 12754581, now seen corresponding path program 1 times [2024-11-11 22:20:13,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:20:13,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185086482] [2024-11-11 22:20:13,685 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:20:13,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:20:13,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:13,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:20:13,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:13,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-11 22:20:13,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:13,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 22:20:13,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:13,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:20:13,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:13,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-11 22:20:13,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:13,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:20:13,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:20:13,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185086482] [2024-11-11 22:20:13,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185086482] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:20:13,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:20:13,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:20:13,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836648913] [2024-11-11 22:20:13,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:20:13,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:20:13,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:20:13,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:20:13,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:20:13,861 INFO L87 Difference]: Start difference. First operand 2862 states and 5060 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:20:15,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:20:15,299 INFO L93 Difference]: Finished difference Result 4514 states and 7564 transitions. [2024-11-11 22:20:15,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:20:15,299 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 80 [2024-11-11 22:20:15,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:20:15,318 INFO L225 Difference]: With dead ends: 4514 [2024-11-11 22:20:15,319 INFO L226 Difference]: Without dead ends: 3784 [2024-11-11 22:20:15,324 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:20:15,325 INFO L435 NwaCegarLoop]: 4214 mSDtfsCounter, 4493 mSDsluCounter, 16674 mSDsCounter, 0 mSdLazyCounter, 1226 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4503 SdHoareTripleChecker+Valid, 20888 SdHoareTripleChecker+Invalid, 1275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:20:15,328 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4503 Valid, 20888 Invalid, 1275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1226 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-11 22:20:15,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3784 states. [2024-11-11 22:20:15,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3784 to 3433. [2024-11-11 22:20:15,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3433 states, 3254 states have (on average 1.7360172095881992) internal successors, (5649), 3265 states have internal predecessors, (5649), 115 states have call successors, (115), 55 states have call predecessors, (115), 62 states have return successors, (148), 120 states have call predecessors, (148), 113 states have call successors, (148) [2024-11-11 22:20:15,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3433 states to 3433 states and 5912 transitions. [2024-11-11 22:20:15,466 INFO L78 Accepts]: Start accepts. Automaton has 3433 states and 5912 transitions. Word has length 80 [2024-11-11 22:20:15,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:20:15,467 INFO L471 AbstractCegarLoop]: Abstraction has 3433 states and 5912 transitions. [2024-11-11 22:20:15,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:20:15,467 INFO L276 IsEmpty]: Start isEmpty. Operand 3433 states and 5912 transitions. [2024-11-11 22:20:15,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-11 22:20:15,470 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:20:15,470 INFO L218 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] [2024-11-11 22:20:15,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-11 22:20:15,471 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:20:15,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:20:15,472 INFO L85 PathProgramCache]: Analyzing trace with hash -404642025, now seen corresponding path program 1 times [2024-11-11 22:20:15,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:20:15,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199410301] [2024-11-11 22:20:15,473 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:20:15,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:20:15,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:15,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:20:15,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:15,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-11 22:20:15,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:15,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 22:20:15,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:15,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:20:15,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:15,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-11 22:20:15,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:15,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:20:15,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:20:15,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199410301] [2024-11-11 22:20:15,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199410301] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:20:15,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:20:15,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:20:15,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063711190] [2024-11-11 22:20:15,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:20:15,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:20:15,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:20:15,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:20:15,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:20:15,652 INFO L87 Difference]: Start difference. First operand 3433 states and 5912 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:20:16,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:20:16,868 INFO L93 Difference]: Finished difference Result 6891 states and 11132 transitions. [2024-11-11 22:20:16,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 22:20:16,870 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 80 [2024-11-11 22:20:16,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:20:16,899 INFO L225 Difference]: With dead ends: 6891 [2024-11-11 22:20:16,900 INFO L226 Difference]: Without dead ends: 5590 [2024-11-11 22:20:16,907 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-11 22:20:16,909 INFO L435 NwaCegarLoop]: 4212 mSDtfsCounter, 4624 mSDsluCounter, 16666 mSDsCounter, 0 mSdLazyCounter, 1210 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4638 SdHoareTripleChecker+Valid, 20878 SdHoareTripleChecker+Invalid, 1262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-11 22:20:16,909 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4638 Valid, 20878 Invalid, 1262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1210 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-11 22:20:16,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5590 states. [2024-11-11 22:20:17,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5590 to 4556. [2024-11-11 22:20:17,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4556 states, 4233 states have (on average 1.6789510985116938) internal successors, (7107), 4252 states have internal predecessors, (7107), 203 states have call successors, (203), 103 states have call predecessors, (203), 118 states have return successors, (298), 216 states have call predecessors, (298), 201 states have call successors, (298) [2024-11-11 22:20:17,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4556 states to 4556 states and 7608 transitions. [2024-11-11 22:20:17,194 INFO L78 Accepts]: Start accepts. Automaton has 4556 states and 7608 transitions. Word has length 80 [2024-11-11 22:20:17,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:20:17,195 INFO L471 AbstractCegarLoop]: Abstraction has 4556 states and 7608 transitions. [2024-11-11 22:20:17,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:20:17,195 INFO L276 IsEmpty]: Start isEmpty. Operand 4556 states and 7608 transitions. [2024-11-11 22:20:17,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-11 22:20:17,198 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:20:17,198 INFO L218 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] [2024-11-11 22:20:17,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-11 22:20:17,199 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:20:17,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:20:17,199 INFO L85 PathProgramCache]: Analyzing trace with hash 274630229, now seen corresponding path program 1 times [2024-11-11 22:20:17,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:20:17,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989219446] [2024-11-11 22:20:17,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:20:17,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:20:17,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:17,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:20:17,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:17,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-11 22:20:17,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:17,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 22:20:17,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:17,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:20:17,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:17,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-11 22:20:17,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:17,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:20:17,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:20:17,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989219446] [2024-11-11 22:20:17,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989219446] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:20:17,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:20:17,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:20:17,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573602906] [2024-11-11 22:20:17,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:20:17,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:20:17,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:20:17,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:20:17,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:20:17,352 INFO L87 Difference]: Start difference. First operand 4556 states and 7608 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:20:18,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:20:18,699 INFO L93 Difference]: Finished difference Result 10972 states and 17330 transitions. [2024-11-11 22:20:18,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 22:20:18,700 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 80 [2024-11-11 22:20:18,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:20:18,759 INFO L225 Difference]: With dead ends: 10972 [2024-11-11 22:20:18,760 INFO L226 Difference]: Without dead ends: 8548 [2024-11-11 22:20:18,774 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-11 22:20:18,775 INFO L435 NwaCegarLoop]: 4211 mSDtfsCounter, 4513 mSDsluCounter, 16663 mSDsCounter, 0 mSdLazyCounter, 1383 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4522 SdHoareTripleChecker+Valid, 20874 SdHoareTripleChecker+Invalid, 1434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-11 22:20:18,776 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4522 Valid, 20874 Invalid, 1434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1383 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-11 22:20:18,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8548 states. [2024-11-11 22:20:19,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8548 to 6631. [2024-11-11 22:20:19,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6631 states, 6028 states have (on average 1.6152952886529528) internal successors, (9737), 6063 states have internal predecessors, (9737), 371 states have call successors, (371), 199 states have call predecessors, (371), 230 states have return successors, (644), 400 states have call predecessors, (644), 369 states have call successors, (644) [2024-11-11 22:20:19,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6631 states to 6631 states and 10752 transitions. [2024-11-11 22:20:19,163 INFO L78 Accepts]: Start accepts. Automaton has 6631 states and 10752 transitions. Word has length 80 [2024-11-11 22:20:19,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:20:19,164 INFO L471 AbstractCegarLoop]: Abstraction has 6631 states and 10752 transitions. [2024-11-11 22:20:19,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:20:19,165 INFO L276 IsEmpty]: Start isEmpty. Operand 6631 states and 10752 transitions. [2024-11-11 22:20:19,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-11 22:20:19,171 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:20:19,172 INFO L218 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] [2024-11-11 22:20:19,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-11 22:20:19,172 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:20:19,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:20:19,173 INFO L85 PathProgramCache]: Analyzing trace with hash -2058762409, now seen corresponding path program 1 times [2024-11-11 22:20:19,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:20:19,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648691075] [2024-11-11 22:20:19,174 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:20:19,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:20:19,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:19,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:20:19,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:19,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-11 22:20:19,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:19,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 22:20:19,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:19,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:20:19,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:19,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-11 22:20:19,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:19,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:20:19,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:20:19,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648691075] [2024-11-11 22:20:19,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648691075] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:20:19,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:20:19,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:20:19,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487635357] [2024-11-11 22:20:19,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:20:19,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:20:19,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:20:19,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:20:19,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:20:19,323 INFO L87 Difference]: Start difference. First operand 6631 states and 10752 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:20:20,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:20:20,889 INFO L93 Difference]: Finished difference Result 17878 states and 27888 transitions. [2024-11-11 22:20:20,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 22:20:20,890 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 80 [2024-11-11 22:20:20,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:20:20,950 INFO L225 Difference]: With dead ends: 17878 [2024-11-11 22:20:20,950 INFO L226 Difference]: Without dead ends: 13379 [2024-11-11 22:20:20,973 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-11 22:20:20,974 INFO L435 NwaCegarLoop]: 4212 mSDtfsCounter, 4502 mSDsluCounter, 16666 mSDsCounter, 0 mSdLazyCounter, 1166 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4516 SdHoareTripleChecker+Valid, 20878 SdHoareTripleChecker+Invalid, 1219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-11 22:20:20,975 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4516 Valid, 20878 Invalid, 1219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1166 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-11 22:20:20,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13379 states. [2024-11-11 22:20:21,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13379 to 10955. [2024-11-11 22:20:21,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10955 states, 9808 states have (on average 1.5661704730831973) internal successors, (15361), 9875 states have internal predecessors, (15361), 691 states have call successors, (691), 391 states have call predecessors, (691), 454 states have return successors, (1482), 752 states have call predecessors, (1482), 689 states have call successors, (1482) [2024-11-11 22:20:21,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10955 states to 10955 states and 17534 transitions. [2024-11-11 22:20:21,765 INFO L78 Accepts]: Start accepts. Automaton has 10955 states and 17534 transitions. Word has length 80 [2024-11-11 22:20:21,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:20:21,768 INFO L471 AbstractCegarLoop]: Abstraction has 10955 states and 17534 transitions. [2024-11-11 22:20:21,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:20:21,769 INFO L276 IsEmpty]: Start isEmpty. Operand 10955 states and 17534 transitions. [2024-11-11 22:20:21,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-11 22:20:21,782 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:20:21,782 INFO L218 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] [2024-11-11 22:20:21,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-11 22:20:21,783 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:20:21,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:20:21,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1498062631, now seen corresponding path program 1 times [2024-11-11 22:20:21,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:20:21,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27589794] [2024-11-11 22:20:21,784 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:20:21,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:20:21,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:21,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:20:21,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:21,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-11 22:20:21,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:21,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 22:20:21,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:21,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:20:21,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:21,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-11 22:20:21,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:21,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:20:21,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:20:21,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27589794] [2024-11-11 22:20:21,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27589794] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:20:21,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:20:21,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 22:20:21,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625724949] [2024-11-11 22:20:21,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:20:21,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 22:20:21,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:20:21,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 22:20:21,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-11 22:20:21,915 INFO L87 Difference]: Start difference. First operand 10955 states and 17534 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:20:23,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:20:23,675 INFO L93 Difference]: Finished difference Result 26965 states and 42014 transitions. [2024-11-11 22:20:23,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 22:20:23,676 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 80 [2024-11-11 22:20:23,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:20:23,746 INFO L225 Difference]: With dead ends: 26965 [2024-11-11 22:20:23,747 INFO L226 Difference]: Without dead ends: 18143 [2024-11-11 22:20:23,780 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-11 22:20:23,781 INFO L435 NwaCegarLoop]: 4233 mSDtfsCounter, 4670 mSDsluCounter, 12379 mSDsCounter, 0 mSdLazyCounter, 1013 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4697 SdHoareTripleChecker+Valid, 16612 SdHoareTripleChecker+Invalid, 1088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-11 22:20:23,781 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4697 Valid, 16612 Invalid, 1088 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1013 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-11 22:20:23,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18143 states. [2024-11-11 22:20:24,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18143 to 15280. [2024-11-11 22:20:24,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15280 states, 13538 states have (on average 1.528512335647806) internal successors, (20693), 13670 states have internal predecessors, (20693), 1056 states have call successors, (1056), 589 states have call predecessors, (1056), 684 states have return successors, (2091), 1084 states have call predecessors, (2091), 1054 states have call successors, (2091) [2024-11-11 22:20:24,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15280 states to 15280 states and 23840 transitions. [2024-11-11 22:20:24,444 INFO L78 Accepts]: Start accepts. Automaton has 15280 states and 23840 transitions. Word has length 80 [2024-11-11 22:20:24,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:20:24,445 INFO L471 AbstractCegarLoop]: Abstraction has 15280 states and 23840 transitions. [2024-11-11 22:20:24,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:20:24,445 INFO L276 IsEmpty]: Start isEmpty. Operand 15280 states and 23840 transitions. [2024-11-11 22:20:24,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-11 22:20:24,481 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:20:24,482 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-11 22:20:24,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-11 22:20:24,482 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:20:24,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:20:24,483 INFO L85 PathProgramCache]: Analyzing trace with hash 2122320658, now seen corresponding path program 1 times [2024-11-11 22:20:24,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:20:24,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973350649] [2024-11-11 22:20:24,483 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:20:24,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:20:24,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:24,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:20:24,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:24,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-11 22:20:24,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:24,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 22:20:24,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:24,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:20:24,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:24,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-11 22:20:24,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:24,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-11 22:20:24,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:24,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-11 22:20:24,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:24,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-11 22:20:24,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:24,685 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-11 22:20:24,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:20:24,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973350649] [2024-11-11 22:20:24,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973350649] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 22:20:24,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [480833245] [2024-11-11 22:20:24,686 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:20:24,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 22:20:24,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 22:20:24,688 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) [2024-11-11 22:20:24,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-11 22:20:24,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:24,812 INFO L256 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-11 22:20:24,821 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 22:20:24,895 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-11 22:20:24,895 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 22:20:24,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [480833245] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:20:24,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 22:20:24,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2024-11-11 22:20:24,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378318894] [2024-11-11 22:20:24,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:20:24,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 22:20:24,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:20:24,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 22:20:24,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:20:24,901 INFO L87 Difference]: Start difference. First operand 15280 states and 23840 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-11 22:20:26,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:20:26,212 INFO L93 Difference]: Finished difference Result 41227 states and 63420 transitions. [2024-11-11 22:20:26,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 22:20:26,213 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 130 [2024-11-11 22:20:26,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:20:26,340 INFO L225 Difference]: With dead ends: 41227 [2024-11-11 22:20:26,341 INFO L226 Difference]: Without dead ends: 28080 [2024-11-11 22:20:26,398 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:20:26,400 INFO L435 NwaCegarLoop]: 4196 mSDtfsCounter, 4152 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4152 SdHoareTripleChecker+Valid, 4410 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:20:26,400 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4152 Valid, 4410 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 22:20:26,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28080 states. [2024-11-11 22:20:27,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28080 to 27880. [2024-11-11 22:20:27,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27880 states, 24454 states have (on average 1.4978326654126115) internal successors, (36628), 24715 states have internal predecessors, (36628), 2056 states have call successors, (2056), 1177 states have call predecessors, (2056), 1368 states have return successors, (4065), 2051 states have call predecessors, (4065), 2054 states have call successors, (4065) [2024-11-11 22:20:28,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27880 states to 27880 states and 42749 transitions. [2024-11-11 22:20:28,083 INFO L78 Accepts]: Start accepts. Automaton has 27880 states and 42749 transitions. Word has length 130 [2024-11-11 22:20:28,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:20:28,084 INFO L471 AbstractCegarLoop]: Abstraction has 27880 states and 42749 transitions. [2024-11-11 22:20:28,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-11 22:20:28,084 INFO L276 IsEmpty]: Start isEmpty. Operand 27880 states and 42749 transitions. [2024-11-11 22:20:28,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-11 22:20:28,151 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:20:28,151 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-11 22:20:28,170 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-11 22:20:28,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 22:20:28,352 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:20:28,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:20:28,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1621050866, now seen corresponding path program 1 times [2024-11-11 22:20:28,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:20:28,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717717957] [2024-11-11 22:20:28,353 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:20:28,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:20:28,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:28,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:20:28,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:28,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-11 22:20:28,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:28,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 22:20:28,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:28,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:20:28,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:28,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-11 22:20:28,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:28,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-11 22:20:28,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:28,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-11 22:20:28,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:28,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-11 22:20:28,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:28,520 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-11 22:20:28,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:20:28,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717717957] [2024-11-11 22:20:28,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717717957] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 22:20:28,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [576785862] [2024-11-11 22:20:28,521 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:20:28,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 22:20:28,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 22:20:28,524 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) [2024-11-11 22:20:28,525 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-11 22:20:28,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:28,649 INFO L256 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-11 22:20:28,653 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 22:20:28,724 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-11 22:20:28,725 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 22:20:28,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [576785862] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:20:28,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 22:20:28,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2024-11-11 22:20:28,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227989602] [2024-11-11 22:20:28,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:20:28,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 22:20:28,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:20:28,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 22:20:28,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:20:28,728 INFO L87 Difference]: Start difference. First operand 27880 states and 42749 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-11 22:20:31,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:20:31,292 INFO L93 Difference]: Finished difference Result 78681 states and 120015 transitions. [2024-11-11 22:20:31,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 22:20:31,293 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 130 [2024-11-11 22:20:31,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:20:31,548 INFO L225 Difference]: With dead ends: 78681 [2024-11-11 22:20:31,548 INFO L226 Difference]: Without dead ends: 52934 [2024-11-11 22:20:31,643 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:20:31,644 INFO L435 NwaCegarLoop]: 4196 mSDtfsCounter, 4146 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4146 SdHoareTripleChecker+Valid, 4410 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:20:31,645 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4146 Valid, 4410 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 22:20:31,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52934 states. [2024-11-11 22:20:34,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52934 to 52538. [2024-11-11 22:20:34,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52538 states, 45794 states have (on average 1.4786216534917238) internal successors, (67712), 46313 states have internal predecessors, (67712), 4006 states have call successors, (4006), 2353 states have call predecessors, (4006), 2736 states have return successors, (7963), 3935 states have call predecessors, (7963), 4004 states have call successors, (7963) [2024-11-11 22:20:35,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52538 states to 52538 states and 79681 transitions. [2024-11-11 22:20:35,111 INFO L78 Accepts]: Start accepts. Automaton has 52538 states and 79681 transitions. Word has length 130 [2024-11-11 22:20:35,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:20:35,111 INFO L471 AbstractCegarLoop]: Abstraction has 52538 states and 79681 transitions. [2024-11-11 22:20:35,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-11 22:20:35,112 INFO L276 IsEmpty]: Start isEmpty. Operand 52538 states and 79681 transitions. [2024-11-11 22:20:35,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-11 22:20:35,194 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:20:35,195 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-11 22:20:35,213 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-11 22:20:35,399 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,SelfDestructingSolverStorable9 [2024-11-11 22:20:35,401 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:20:35,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:20:35,402 INFO L85 PathProgramCache]: Analyzing trace with hash 771500242, now seen corresponding path program 1 times [2024-11-11 22:20:35,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:20:35,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052102987] [2024-11-11 22:20:35,402 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:20:35,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:20:35,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:35,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:20:35,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:35,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-11 22:20:35,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:35,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 22:20:35,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:35,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:20:35,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:35,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-11 22:20:35,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:35,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-11 22:20:35,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:35,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-11 22:20:35,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:35,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-11 22:20:35,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:35,564 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-11 22:20:35,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:20:35,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052102987] [2024-11-11 22:20:35,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052102987] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 22:20:35,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [379233881] [2024-11-11 22:20:35,566 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:20:35,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 22:20:35,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 22:20:35,568 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) [2024-11-11 22:20:35,570 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-11 22:20:35,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:35,686 INFO L256 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-11 22:20:35,688 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 22:20:35,720 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-11 22:20:35,720 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 22:20:35,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [379233881] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:20:35,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 22:20:35,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-11 22:20:35,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86403381] [2024-11-11 22:20:35,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:20:35,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 22:20:35,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:20:35,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 22:20:35,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:20:35,724 INFO L87 Difference]: Start difference. First operand 52538 states and 79681 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-11 22:20:40,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:20:40,376 INFO L93 Difference]: Finished difference Result 150453 states and 229117 transitions. [2024-11-11 22:20:40,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 22:20:40,377 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 130 [2024-11-11 22:20:40,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:20:40,896 INFO L225 Difference]: With dead ends: 150453 [2024-11-11 22:20:40,896 INFO L226 Difference]: Without dead ends: 100049 [2024-11-11 22:20:41,035 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:20:41,036 INFO L435 NwaCegarLoop]: 4400 mSDtfsCounter, 197 mSDsluCounter, 4194 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 8594 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:20:41,036 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 8594 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 22:20:41,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100049 states. [2024-11-11 22:20:46,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100049 to 100049. [2024-11-11 22:20:46,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100049 states, 86830 states have (on average 1.4594840492917194) internal successors, (126727), 87734 states have internal predecessors, (126727), 7745 states have call successors, (7745), 4705 states have call predecessors, (7745), 5472 states have return successors, (17046), 7737 states have call predecessors, (17046), 7743 states have call successors, (17046) [2024-11-11 22:20:47,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100049 states to 100049 states and 151518 transitions. [2024-11-11 22:20:47,381 INFO L78 Accepts]: Start accepts. Automaton has 100049 states and 151518 transitions. Word has length 130 [2024-11-11 22:20:47,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:20:47,382 INFO L471 AbstractCegarLoop]: Abstraction has 100049 states and 151518 transitions. [2024-11-11 22:20:47,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-11 22:20:47,382 INFO L276 IsEmpty]: Start isEmpty. Operand 100049 states and 151518 transitions. [2024-11-11 22:20:47,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-11 22:20:47,667 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:20:47,667 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:20:47,687 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-11 22:20:47,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 22:20:47,868 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:20:47,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:20:47,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1173211957, now seen corresponding path program 1 times [2024-11-11 22:20:47,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:20:47,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127044399] [2024-11-11 22:20:47,869 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:20:47,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:20:47,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:47,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:20:47,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:47,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-11 22:20:47,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:47,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 22:20:47,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:48,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:20:48,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:48,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-11 22:20:48,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:48,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-11 22:20:48,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:48,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-11 22:20:48,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:48,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-11 22:20:48,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:48,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-11 22:20:48,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:48,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-11 22:20:48,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:48,061 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-11 22:20:48,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:20:48,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127044399] [2024-11-11 22:20:48,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127044399] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 22:20:48,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1995262924] [2024-11-11 22:20:48,062 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:20:48,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 22:20:48,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 22:20:48,064 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) [2024-11-11 22:20:48,066 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-11 22:20:48,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:20:48,198 INFO L256 TraceCheckSpWp]: Trace formula consists of 597 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-11 22:20:48,202 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 22:20:48,370 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-11 22:20:48,371 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 22:20:48,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1995262924] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:20:48,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 22:20:48,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2024-11-11 22:20:48,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644771263] [2024-11-11 22:20:48,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:20:48,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 22:20:48,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:20:48,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 22:20:48,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:20:48,373 INFO L87 Difference]: Start difference. First operand 100049 states and 151518 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10)