./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label42+token_ring.08.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d 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_label42+token_ring.08.cil-2.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 9803c0f5a18eedfb3ad16cce49537bdc49a8790d5c61a825350a143730d73381 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 16:28:16,006 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:28:16,047 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 16:28:16,050 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:28:16,050 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:28:16,067 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:28:16,067 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:28:16,068 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:28:16,068 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 16:28:16,071 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 16:28:16,071 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:28:16,071 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:28:16,071 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:28:16,072 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:28:16,072 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:28:16,072 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:28:16,072 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 16:28:16,073 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 16:28:16,073 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 16:28:16,073 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 16:28:16,073 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:28:16,077 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 16:28:16,077 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:28:16,078 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 16:28:16,078 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:28:16,078 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 16:28:16,078 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 16:28:16,078 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:28:16,079 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:28:16,079 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:28:16,079 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 16:28:16,079 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:28:16,079 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:28:16,080 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:28:16,080 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:28:16,080 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 16:28:16,080 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 16:28:16,080 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 16:28:16,080 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:28:16,080 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:28:16,081 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:28:16,082 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:28:16,082 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9803c0f5a18eedfb3ad16cce49537bdc49a8790d5c61a825350a143730d73381 [2024-11-08 16:28:16,286 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:28:16,301 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:28:16,303 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:28:16,304 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:28:16,305 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:28:16,306 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label42+token_ring.08.cil-2.c [2024-11-08 16:28:17,643 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:28:18,112 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:28:18,113 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.08.cil-2.c [2024-11-08 16:28:18,156 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5859d85d6/711ff4782a204f249acf9ac8c7c8bb55/FLAG3a9622608 [2024-11-08 16:28:18,168 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5859d85d6/711ff4782a204f249acf9ac8c7c8bb55 [2024-11-08 16:28:18,170 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:28:18,171 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:28:18,172 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:28:18,174 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:28:18,178 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:28:18,178 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:28:18" (1/1) ... [2024-11-08 16:28:18,179 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ee46b92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:28:18, skipping insertion in model container [2024-11-08 16:28:18,179 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:28:18" (1/1) ... [2024-11-08 16:28:18,303 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:28:19,570 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_label42+token_ring.08.cil-2.c[378560,378573] [2024-11-08 16:28:19,592 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_label42+token_ring.08.cil-2.c[383339,383352] [2024-11-08 16:28:19,764 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:28:19,777 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:28:20,394 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_label42+token_ring.08.cil-2.c[378560,378573] [2024-11-08 16:28:20,399 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_label42+token_ring.08.cil-2.c[383339,383352] [2024-11-08 16:28:20,416 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:28:20,508 INFO L204 MainTranslator]: Completed translation [2024-11-08 16:28:20,509 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:28:20 WrapperNode [2024-11-08 16:28:20,509 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:28:20,511 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 16:28:20,511 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 16:28:20,511 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 16:28:20,516 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:28:20" (1/1) ... [2024-11-08 16:28:20,592 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:28:20" (1/1) ... [2024-11-08 16:28:20,788 INFO L138 Inliner]: procedures = 60, calls = 66, calls flagged for inlining = 37, calls inlined = 37, statements flattened = 12999 [2024-11-08 16:28:20,788 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 16:28:20,789 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 16:28:20,790 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 16:28:20,790 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 16:28:20,798 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:28:20" (1/1) ... [2024-11-08 16:28:20,798 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:28:20" (1/1) ... [2024-11-08 16:28:20,846 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:28:20" (1/1) ... [2024-11-08 16:28:21,097 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]. [2024-11-08 16:28:21,097 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:28:20" (1/1) ... [2024-11-08 16:28:21,098 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:28:20" (1/1) ... [2024-11-08 16:28:21,388 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:28:20" (1/1) ... [2024-11-08 16:28:21,462 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:28:20" (1/1) ... [2024-11-08 16:28:21,514 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:28:20" (1/1) ... [2024-11-08 16:28:21,557 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:28:20" (1/1) ... [2024-11-08 16:28:21,714 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 16:28:21,715 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 16:28:21,716 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 16:28:21,716 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 16:28:21,716 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:28:20" (1/1) ... [2024-11-08 16:28:21,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:28:21,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 16:28:21,787 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) [2024-11-08 16:28:21,793 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 [2024-11-08 16:28:21,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 16:28:21,883 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-08 16:28:21,883 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-08 16:28:21,883 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-08 16:28:21,883 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-08 16:28:21,883 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-08 16:28:21,883 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-08 16:28:21,883 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-11-08 16:28:21,883 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-11-08 16:28:21,883 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-08 16:28:21,883 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-08 16:28:21,883 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-08 16:28:21,883 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-08 16:28:21,884 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-08 16:28:21,884 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-08 16:28:21,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 16:28:21,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 16:28:21,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 16:28:21,974 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 16:28:21,976 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 16:28:28,856 INFO L? ?]: Removed 1735 outVars from TransFormulas that were not future-live. [2024-11-08 16:28:28,856 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 16:28:28,899 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 16:28:28,899 INFO L316 CfgBuilder]: Removed 12 assume(true) statements. [2024-11-08 16:28:28,900 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:28:28 BoogieIcfgContainer [2024-11-08 16:28:28,900 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 16:28:28,902 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 16:28:28,902 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 16:28:28,905 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 16:28:28,905 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:28:18" (1/3) ... [2024-11-08 16:28:28,905 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@efde497 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:28:28, skipping insertion in model container [2024-11-08 16:28:28,905 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:28:20" (2/3) ... [2024-11-08 16:28:28,906 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@efde497 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:28:28, skipping insertion in model container [2024-11-08 16:28:28,906 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:28:28" (3/3) ... [2024-11-08 16:28:28,906 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label42+token_ring.08.cil-2.c [2024-11-08 16:28:28,918 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 16:28:28,918 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 16:28:28,997 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:28:29,003 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;@3bae341c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:28:29,003 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-08 16:28:29,015 INFO L276 IsEmpty]: Start isEmpty. Operand has 2482 states, 2448 states have (on average 1.8455882352941178) internal successors, (4518), 2453 states have internal predecessors, (4518), 24 states have call successors, (24), 7 states have call predecessors, (24), 7 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-08 16:28:29,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-08 16:28:29,028 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:28:29,029 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:28:29,031 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:28:29,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:28:29,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1791270743, now seen corresponding path program 1 times [2024-11-08 16:28:29,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:28:29,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105887698] [2024-11-08 16:28:29,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:28:29,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:28:29,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:29,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 16:28:29,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:29,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 16:28:29,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:29,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 16:28:29,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:29,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-08 16:28:29,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:29,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 16:28:29,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:29,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:28:29,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:28:29,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105887698] [2024-11-08 16:28:29,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105887698] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:28:29,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:28:29,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:28:29,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982469825] [2024-11-08 16:28:29,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:28:29,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:28:29,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:28:29,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:28:29,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:28:29,478 INFO L87 Difference]: Start difference. First operand has 2482 states, 2448 states have (on average 1.8455882352941178) internal successors, (4518), 2453 states have internal predecessors, (4518), 24 states have call successors, (24), 7 states have call predecessors, (24), 7 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:28:30,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:28:30,844 INFO L93 Difference]: Finished difference Result 5055 states and 9290 transitions. [2024-11-08 16:28:30,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:28:30,846 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 135 [2024-11-08 16:28:30,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:28:30,865 INFO L225 Difference]: With dead ends: 5055 [2024-11-08 16:28:30,865 INFO L226 Difference]: Without dead ends: 2512 [2024-11-08 16:28:30,873 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:28:30,875 INFO L432 NwaCegarLoop]: 4302 mSDtfsCounter, 761 mSDsluCounter, 12397 mSDsCounter, 0 mSdLazyCounter, 729 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 781 SdHoareTripleChecker+Valid, 16699 SdHoareTripleChecker+Invalid, 781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:28:30,876 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [781 Valid, 16699 Invalid, 781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 729 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 16:28:30,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2512 states. [2024-11-08 16:28:30,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2512 to 2414. [2024-11-08 16:28:30,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2414 states, 2382 states have (on average 1.8316540722082284) internal successors, (4363), 2385 states have internal predecessors, (4363), 24 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-08 16:28:30,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2414 states to 2414 states and 4409 transitions. [2024-11-08 16:28:30,983 INFO L78 Accepts]: Start accepts. Automaton has 2414 states and 4409 transitions. Word has length 135 [2024-11-08 16:28:30,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:28:30,983 INFO L471 AbstractCegarLoop]: Abstraction has 2414 states and 4409 transitions. [2024-11-08 16:28:30,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:28:30,984 INFO L276 IsEmpty]: Start isEmpty. Operand 2414 states and 4409 transitions. [2024-11-08 16:28:30,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-08 16:28:30,987 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:28:30,987 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:28:30,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 16:28:30,987 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:28:30,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:28:30,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1361612437, now seen corresponding path program 1 times [2024-11-08 16:28:30,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:28:30,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475997160] [2024-11-08 16:28:30,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:28:30,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:28:31,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:31,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 16:28:31,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:31,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 16:28:31,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:31,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 16:28:31,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:31,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-08 16:28:31,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:31,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 16:28:31,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:31,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:28:31,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:28:31,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475997160] [2024-11-08 16:28:31,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475997160] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:28:31,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:28:31,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 16:28:31,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314228206] [2024-11-08 16:28:31,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:28:31,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:28:31,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:28:31,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:28:31,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:28:31,305 INFO L87 Difference]: Start difference. First operand 2414 states and 4409 transitions. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 4 states have internal predecessors, (124), 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) [2024-11-08 16:28:33,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:28:33,149 INFO L93 Difference]: Finished difference Result 3174 states and 5618 transitions. [2024-11-08 16:28:33,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 16:28:33,150 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 4 states have internal predecessors, (124), 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 135 [2024-11-08 16:28:33,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:28:33,160 INFO L225 Difference]: With dead ends: 3174 [2024-11-08 16:28:33,160 INFO L226 Difference]: Without dead ends: 2897 [2024-11-08 16:28:33,162 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-08 16:28:33,163 INFO L432 NwaCegarLoop]: 4211 mSDtfsCounter, 5083 mSDsluCounter, 12640 mSDsCounter, 0 mSdLazyCounter, 1598 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5098 SdHoareTripleChecker+Valid, 16851 SdHoareTripleChecker+Invalid, 1698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-08 16:28:33,163 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5098 Valid, 16851 Invalid, 1698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1598 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-08 16:28:33,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2897 states. [2024-11-08 16:28:33,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2897 to 2700. [2024-11-08 16:28:33,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2700 states, 2644 states have (on average 1.8055975794251136) internal successors, (4774), 2648 states have internal predecessors, (4774), 41 states have call successors, (41), 13 states have call predecessors, (41), 13 states have return successors, (42), 39 states have call predecessors, (42), 39 states have call successors, (42) [2024-11-08 16:28:33,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2700 states to 2700 states and 4857 transitions. [2024-11-08 16:28:33,244 INFO L78 Accepts]: Start accepts. Automaton has 2700 states and 4857 transitions. Word has length 135 [2024-11-08 16:28:33,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:28:33,244 INFO L471 AbstractCegarLoop]: Abstraction has 2700 states and 4857 transitions. [2024-11-08 16:28:33,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 4 states have internal predecessors, (124), 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) [2024-11-08 16:28:33,245 INFO L276 IsEmpty]: Start isEmpty. Operand 2700 states and 4857 transitions. [2024-11-08 16:28:33,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-08 16:28:33,247 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:28:33,247 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:28:33,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 16:28:33,247 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:28:33,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:28:33,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1571352423, now seen corresponding path program 1 times [2024-11-08 16:28:33,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:28:33,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812027590] [2024-11-08 16:28:33,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:28:33,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:28:33,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:33,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 16:28:33,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:33,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 16:28:33,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:33,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 16:28:33,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:33,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-08 16:28:33,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:33,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 16:28:33,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:33,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:28:33,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:28:33,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812027590] [2024-11-08 16:28:33,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812027590] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:28:33,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:28:33,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:28:33,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093447274] [2024-11-08 16:28:33,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:28:33,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:28:33,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:28:33,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:28:33,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:28:33,528 INFO L87 Difference]: Start difference. First operand 2700 states and 4857 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-08 16:28:36,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:28:36,127 INFO L93 Difference]: Finished difference Result 3855 states and 6694 transitions. [2024-11-08 16:28:36,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 16:28:36,128 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 135 [2024-11-08 16:28:36,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:28:36,137 INFO L225 Difference]: With dead ends: 3855 [2024-11-08 16:28:36,138 INFO L226 Difference]: Without dead ends: 3292 [2024-11-08 16:28:36,139 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-08 16:28:36,140 INFO L432 NwaCegarLoop]: 4405 mSDtfsCounter, 5100 mSDsluCounter, 17356 mSDsCounter, 0 mSdLazyCounter, 2546 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5115 SdHoareTripleChecker+Valid, 21761 SdHoareTripleChecker+Invalid, 2603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:28:36,140 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5115 Valid, 21761 Invalid, 2603 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [57 Valid, 2546 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-08 16:28:36,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3292 states. [2024-11-08 16:28:36,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3292 to 2967. [2024-11-08 16:28:36,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2967 states, 2887 states have (on average 1.7828195358503638) internal successors, (5147), 2892 states have internal predecessors, (5147), 58 states have call successors, (58), 19 states have call predecessors, (58), 20 states have return successors, (61), 57 states have call predecessors, (61), 56 states have call successors, (61) [2024-11-08 16:28:36,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2967 states to 2967 states and 5266 transitions. [2024-11-08 16:28:36,201 INFO L78 Accepts]: Start accepts. Automaton has 2967 states and 5266 transitions. Word has length 135 [2024-11-08 16:28:36,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:28:36,201 INFO L471 AbstractCegarLoop]: Abstraction has 2967 states and 5266 transitions. [2024-11-08 16:28:36,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-08 16:28:36,201 INFO L276 IsEmpty]: Start isEmpty. Operand 2967 states and 5266 transitions. [2024-11-08 16:28:36,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-08 16:28:36,203 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:28:36,203 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:28:36,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 16:28:36,203 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:28:36,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:28:36,204 INFO L85 PathProgramCache]: Analyzing trace with hash -794682647, now seen corresponding path program 1 times [2024-11-08 16:28:36,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:28:36,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521200145] [2024-11-08 16:28:36,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:28:36,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:28:36,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:36,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 16:28:36,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:36,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 16:28:36,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:36,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 16:28:36,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:36,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-08 16:28:36,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:36,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 16:28:36,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:36,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:28:36,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:28:36,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521200145] [2024-11-08 16:28:36,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521200145] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:28:36,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:28:36,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:28:36,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251543722] [2024-11-08 16:28:36,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:28:36,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:28:36,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:28:36,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:28:36,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:28:36,382 INFO L87 Difference]: Start difference. First operand 2967 states and 5266 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-08 16:28:38,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:28:38,312 INFO L93 Difference]: Finished difference Result 4859 states and 8269 transitions. [2024-11-08 16:28:38,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 16:28:38,312 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 135 [2024-11-08 16:28:38,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:28:38,327 INFO L225 Difference]: With dead ends: 4859 [2024-11-08 16:28:38,328 INFO L226 Difference]: Without dead ends: 4029 [2024-11-08 16:28:38,332 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-08 16:28:38,335 INFO L432 NwaCegarLoop]: 4221 mSDtfsCounter, 5182 mSDsluCounter, 16830 mSDsCounter, 0 mSdLazyCounter, 2159 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5197 SdHoareTripleChecker+Valid, 21051 SdHoareTripleChecker+Invalid, 2250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 2159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-08 16:28:38,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5197 Valid, 21051 Invalid, 2250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 2159 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-08 16:28:38,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4029 states. [2024-11-08 16:28:38,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4029 to 3502. [2024-11-08 16:28:38,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3502 states, 3374 states have (on average 1.7468879668049793) internal successors, (5894), 3381 states have internal predecessors, (5894), 92 states have call successors, (92), 31 states have call predecessors, (92), 34 states have return successors, (103), 93 states have call predecessors, (103), 90 states have call successors, (103) [2024-11-08 16:28:38,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3502 states to 3502 states and 6089 transitions. [2024-11-08 16:28:38,450 INFO L78 Accepts]: Start accepts. Automaton has 3502 states and 6089 transitions. Word has length 135 [2024-11-08 16:28:38,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:28:38,453 INFO L471 AbstractCegarLoop]: Abstraction has 3502 states and 6089 transitions. [2024-11-08 16:28:38,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-08 16:28:38,453 INFO L276 IsEmpty]: Start isEmpty. Operand 3502 states and 6089 transitions. [2024-11-08 16:28:38,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-08 16:28:38,455 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:28:38,455 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:28:38,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 16:28:38,455 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:28:38,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:28:38,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1207203623, now seen corresponding path program 1 times [2024-11-08 16:28:38,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:28:38,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800943643] [2024-11-08 16:28:38,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:28:38,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:28:38,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:38,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 16:28:38,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:38,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 16:28:38,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:38,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 16:28:38,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:38,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-08 16:28:38,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:38,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 16:28:38,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:38,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:28:38,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:28:38,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800943643] [2024-11-08 16:28:38,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800943643] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:28:38,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:28:38,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:28:38,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52014769] [2024-11-08 16:28:38,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:28:38,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:28:38,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:28:38,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:28:38,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:28:38,735 INFO L87 Difference]: Start difference. First operand 3502 states and 6089 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-08 16:28:40,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:28:40,739 INFO L93 Difference]: Finished difference Result 6794 states and 11288 transitions. [2024-11-08 16:28:40,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 16:28:40,739 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 135 [2024-11-08 16:28:40,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:28:40,758 INFO L225 Difference]: With dead ends: 6794 [2024-11-08 16:28:40,758 INFO L226 Difference]: Without dead ends: 5429 [2024-11-08 16:28:40,764 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-08 16:28:40,765 INFO L432 NwaCegarLoop]: 4403 mSDtfsCounter, 5098 mSDsluCounter, 17356 mSDsCounter, 0 mSdLazyCounter, 2535 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5113 SdHoareTripleChecker+Valid, 21759 SdHoareTripleChecker+Invalid, 2594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-08 16:28:40,765 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5113 Valid, 21759 Invalid, 2594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2535 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-08 16:28:40,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5429 states. [2024-11-08 16:28:40,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5429 to 4573. [2024-11-08 16:28:40,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4573 states, 4349 states have (on average 1.6987813290411589) internal successors, (7388), 4360 states have internal predecessors, (7388), 160 states have call successors, (160), 55 states have call predecessors, (160), 62 states have return successors, (193), 165 states have call predecessors, (193), 158 states have call successors, (193) [2024-11-08 16:28:41,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4573 states to 4573 states and 7741 transitions. [2024-11-08 16:28:41,047 INFO L78 Accepts]: Start accepts. Automaton has 4573 states and 7741 transitions. Word has length 135 [2024-11-08 16:28:41,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:28:41,047 INFO L471 AbstractCegarLoop]: Abstraction has 4573 states and 7741 transitions. [2024-11-08 16:28:41,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-08 16:28:41,052 INFO L276 IsEmpty]: Start isEmpty. Operand 4573 states and 7741 transitions. [2024-11-08 16:28:41,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-08 16:28:41,054 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:28:41,055 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:28:41,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 16:28:41,055 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:28:41,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:28:41,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1360618711, now seen corresponding path program 1 times [2024-11-08 16:28:41,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:28:41,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184433271] [2024-11-08 16:28:41,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:28:41,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:28:41,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:41,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 16:28:41,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:41,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 16:28:41,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:41,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 16:28:41,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:41,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-08 16:28:41,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:41,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 16:28:41,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:41,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:28:41,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:28:41,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184433271] [2024-11-08 16:28:41,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184433271] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:28:41,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:28:41,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:28:41,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163635415] [2024-11-08 16:28:41,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:28:41,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:28:41,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:28:41,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:28:41,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:28:41,243 INFO L87 Difference]: Start difference. First operand 4573 states and 7741 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-08 16:28:43,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:28:43,476 INFO L93 Difference]: Finished difference Result 10656 states and 17330 transitions. [2024-11-08 16:28:43,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 16:28:43,479 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 135 [2024-11-08 16:28:43,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:28:43,512 INFO L225 Difference]: With dead ends: 10656 [2024-11-08 16:28:43,513 INFO L226 Difference]: Without dead ends: 8220 [2024-11-08 16:28:43,521 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-08 16:28:43,522 INFO L432 NwaCegarLoop]: 4403 mSDtfsCounter, 5094 mSDsluCounter, 17356 mSDsCounter, 0 mSdLazyCounter, 2507 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5109 SdHoareTripleChecker+Valid, 21759 SdHoareTripleChecker+Invalid, 2566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-08 16:28:43,523 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5109 Valid, 21759 Invalid, 2566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2507 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-08 16:28:43,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8220 states. [2024-11-08 16:28:43,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8220 to 6729. [2024-11-08 16:28:43,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6729 states, 6313 states have (on average 1.6473942658007286) internal successors, (10400), 6332 states have internal predecessors, (10400), 296 states have call successors, (296), 103 states have call predecessors, (296), 118 states have return successors, (391), 309 states have call predecessors, (391), 294 states have call successors, (391) [2024-11-08 16:28:43,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6729 states to 6729 states and 11087 transitions. [2024-11-08 16:28:43,909 INFO L78 Accepts]: Start accepts. Automaton has 6729 states and 11087 transitions. Word has length 135 [2024-11-08 16:28:43,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:28:43,910 INFO L471 AbstractCegarLoop]: Abstraction has 6729 states and 11087 transitions. [2024-11-08 16:28:43,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-08 16:28:43,910 INFO L276 IsEmpty]: Start isEmpty. Operand 6729 states and 11087 transitions. [2024-11-08 16:28:43,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-08 16:28:43,913 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:28:43,913 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:28:43,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 16:28:43,914 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:28:43,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:28:43,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1286985643, now seen corresponding path program 1 times [2024-11-08 16:28:43,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:28:43,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445041429] [2024-11-08 16:28:43,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:28:43,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:28:43,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:43,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 16:28:43,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:44,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 16:28:44,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:44,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 16:28:44,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:44,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-08 16:28:44,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:44,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 16:28:44,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:44,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:28:44,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:28:44,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445041429] [2024-11-08 16:28:44,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445041429] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:28:44,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:28:44,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:28:44,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779576214] [2024-11-08 16:28:44,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:28:44,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:28:44,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:28:44,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:28:44,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:28:44,121 INFO L87 Difference]: Start difference. First operand 6729 states and 11087 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-08 16:28:47,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:28:47,128 INFO L93 Difference]: Finished difference Result 18398 states and 29506 transitions. [2024-11-08 16:28:47,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 16:28:47,128 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 135 [2024-11-08 16:28:47,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:28:47,177 INFO L225 Difference]: With dead ends: 18398 [2024-11-08 16:28:47,177 INFO L226 Difference]: Without dead ends: 13806 [2024-11-08 16:28:47,199 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-08 16:28:47,199 INFO L432 NwaCegarLoop]: 4403 mSDtfsCounter, 5093 mSDsluCounter, 17356 mSDsCounter, 0 mSdLazyCounter, 2494 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5108 SdHoareTripleChecker+Valid, 21759 SdHoareTripleChecker+Invalid, 2553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-08 16:28:47,200 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5108 Valid, 21759 Invalid, 2553 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [59 Valid, 2494 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-08 16:28:47,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13806 states. [2024-11-08 16:28:47,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13806 to 11054. [2024-11-08 16:28:47,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11054 states, 10254 states have (on average 1.603471815876731) internal successors, (16442), 10289 states have internal predecessors, (16442), 568 states have call successors, (568), 199 states have call predecessors, (568), 230 states have return successors, (841), 597 states have call predecessors, (841), 566 states have call successors, (841) [2024-11-08 16:28:47,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11054 states to 11054 states and 17851 transitions. [2024-11-08 16:28:47,818 INFO L78 Accepts]: Start accepts. Automaton has 11054 states and 17851 transitions. Word has length 135 [2024-11-08 16:28:47,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:28:47,818 INFO L471 AbstractCegarLoop]: Abstraction has 11054 states and 17851 transitions. [2024-11-08 16:28:47,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-08 16:28:47,818 INFO L276 IsEmpty]: Start isEmpty. Operand 11054 states and 17851 transitions. [2024-11-08 16:28:47,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-08 16:28:47,824 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:28:47,824 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:28:47,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 16:28:47,824 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:28:47,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:28:47,825 INFO L85 PathProgramCache]: Analyzing trace with hash -844365079, now seen corresponding path program 1 times [2024-11-08 16:28:47,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:28:47,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556819185] [2024-11-08 16:28:47,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:28:47,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:28:47,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:47,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 16:28:47,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:47,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 16:28:47,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:48,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 16:28:48,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:48,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-08 16:28:48,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:48,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 16:28:48,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:48,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:28:48,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:28:48,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556819185] [2024-11-08 16:28:48,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556819185] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:28:48,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:28:48,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:28:48,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651346280] [2024-11-08 16:28:48,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:28:48,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:28:48,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:28:48,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:28:48,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:28:48,030 INFO L87 Difference]: Start difference. First operand 11054 states and 17851 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-08 16:28:49,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:28:49,442 INFO L93 Difference]: Finished difference Result 22862 states and 36753 transitions. [2024-11-08 16:28:49,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 16:28:49,443 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 135 [2024-11-08 16:28:49,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:28:49,481 INFO L225 Difference]: With dead ends: 22862 [2024-11-08 16:28:49,482 INFO L226 Difference]: Without dead ends: 13945 [2024-11-08 16:28:49,500 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-08 16:28:49,502 INFO L432 NwaCegarLoop]: 4196 mSDtfsCounter, 4913 mSDsluCounter, 12461 mSDsCounter, 0 mSdLazyCounter, 1146 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4929 SdHoareTripleChecker+Valid, 16657 SdHoareTripleChecker+Invalid, 1231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 16:28:49,504 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4929 Valid, 16657 Invalid, 1231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1146 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 16:28:49,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13945 states. [2024-11-08 16:28:49,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13945 to 11054. [2024-11-08 16:28:49,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11054 states, 10254 states have (on average 1.6002535595865028) internal successors, (16409), 10289 states have internal predecessors, (16409), 568 states have call successors, (568), 199 states have call predecessors, (568), 230 states have return successors, (841), 597 states have call predecessors, (841), 566 states have call successors, (841) [2024-11-08 16:28:49,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11054 states to 11054 states and 17818 transitions. [2024-11-08 16:28:49,874 INFO L78 Accepts]: Start accepts. Automaton has 11054 states and 17818 transitions. Word has length 135 [2024-11-08 16:28:49,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:28:49,875 INFO L471 AbstractCegarLoop]: Abstraction has 11054 states and 17818 transitions. [2024-11-08 16:28:49,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-08 16:28:49,875 INFO L276 IsEmpty]: Start isEmpty. Operand 11054 states and 17818 transitions. [2024-11-08 16:28:49,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-08 16:28:49,881 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:28:49,881 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:28:49,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 16:28:49,881 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:28:49,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:28:49,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1882949653, now seen corresponding path program 1 times [2024-11-08 16:28:49,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:28:49,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466222290] [2024-11-08 16:28:49,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:28:49,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:28:49,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:49,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 16:28:49,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:49,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 16:28:49,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:50,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 16:28:50,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:50,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-08 16:28:50,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:50,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 16:28:50,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:50,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:28:50,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:28:50,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466222290] [2024-11-08 16:28:50,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466222290] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:28:50,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:28:50,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:28:50,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872648249] [2024-11-08 16:28:50,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:28:50,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:28:50,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:28:50,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:28:50,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:28:50,037 INFO L87 Difference]: Start difference. First operand 11054 states and 17818 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-08 16:28:52,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:28:52,921 INFO L93 Difference]: Finished difference Result 33847 states and 53816 transitions. [2024-11-08 16:28:52,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 16:28:52,922 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 135 [2024-11-08 16:28:52,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:28:52,988 INFO L225 Difference]: With dead ends: 33847 [2024-11-08 16:28:52,989 INFO L226 Difference]: Without dead ends: 24930 [2024-11-08 16:28:53,019 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-08 16:28:53,019 INFO L432 NwaCegarLoop]: 4403 mSDtfsCounter, 5085 mSDsluCounter, 17356 mSDsCounter, 0 mSdLazyCounter, 2456 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5100 SdHoareTripleChecker+Valid, 21759 SdHoareTripleChecker+Invalid, 2515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-08 16:28:53,020 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5100 Valid, 21759 Invalid, 2515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2456 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-08 16:28:53,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24930 states. [2024-11-08 16:28:53,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24930 to 19768. [2024-11-08 16:28:53,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19768 states, 18200 states have (on average 1.568186813186813) internal successors, (28541), 18267 states have internal predecessors, (28541), 1112 states have call successors, (1112), 391 states have call predecessors, (1112), 454 states have return successors, (1903), 1173 states have call predecessors, (1903), 1110 states have call successors, (1903) [2024-11-08 16:28:53,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19768 states to 19768 states and 31556 transitions. [2024-11-08 16:28:53,872 INFO L78 Accepts]: Start accepts. Automaton has 19768 states and 31556 transitions. Word has length 135 [2024-11-08 16:28:53,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:28:53,873 INFO L471 AbstractCegarLoop]: Abstraction has 19768 states and 31556 transitions. [2024-11-08 16:28:53,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-08 16:28:53,873 INFO L276 IsEmpty]: Start isEmpty. Operand 19768 states and 31556 transitions. [2024-11-08 16:28:53,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-08 16:28:53,883 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:28:53,883 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:28:53,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 16:28:53,884 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:28:53,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:28:53,885 INFO L85 PathProgramCache]: Analyzing trace with hash 438852265, now seen corresponding path program 1 times [2024-11-08 16:28:53,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:28:53,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938714378] [2024-11-08 16:28:53,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:28:53,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:28:53,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:53,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 16:28:53,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:54,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 16:28:54,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:54,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 16:28:54,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:54,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-08 16:28:54,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:54,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 16:28:54,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:54,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:28:54,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:28:54,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938714378] [2024-11-08 16:28:54,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938714378] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:28:54,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:28:54,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:28:54,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629047853] [2024-11-08 16:28:54,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:28:54,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:28:54,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:28:54,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:28:54,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:28:54,088 INFO L87 Difference]: Start difference. First operand 19768 states and 31556 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-08 16:28:57,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:28:57,749 INFO L93 Difference]: Finished difference Result 72559 states and 115090 transitions. [2024-11-08 16:28:57,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 16:28:57,749 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 135 [2024-11-08 16:28:57,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:28:57,889 INFO L225 Difference]: With dead ends: 72559 [2024-11-08 16:28:57,889 INFO L226 Difference]: Without dead ends: 54928 [2024-11-08 16:28:57,931 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-08 16:28:57,932 INFO L432 NwaCegarLoop]: 4401 mSDtfsCounter, 5414 mSDsluCounter, 17348 mSDsCounter, 0 mSdLazyCounter, 2436 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5438 SdHoareTripleChecker+Valid, 21749 SdHoareTripleChecker+Invalid, 2498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-08 16:28:57,933 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5438 Valid, 21749 Invalid, 2498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2436 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-08 16:28:57,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54928 states. [2024-11-08 16:28:59,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54928 to 37065. [2024-11-08 16:28:59,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37065 states, 34025 states have (on average 1.5508302718589273) internal successors, (52767), 34156 states have internal predecessors, (52767), 2136 states have call successors, (2136), 775 states have call predecessors, (2136), 902 states have return successors, (4449), 2261 states have call predecessors, (4449), 2134 states have call successors, (4449) [2024-11-08 16:29:00,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37065 states to 37065 states and 59352 transitions. [2024-11-08 16:29:00,048 INFO L78 Accepts]: Start accepts. Automaton has 37065 states and 59352 transitions. Word has length 135 [2024-11-08 16:29:00,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:29:00,048 INFO L471 AbstractCegarLoop]: Abstraction has 37065 states and 59352 transitions. [2024-11-08 16:29:00,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-08 16:29:00,049 INFO L276 IsEmpty]: Start isEmpty. Operand 37065 states and 59352 transitions. [2024-11-08 16:29:00,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-08 16:29:00,066 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:29:00,066 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:29:00,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 16:29:00,066 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:29:00,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:29:00,067 INFO L85 PathProgramCache]: Analyzing trace with hash -1703008213, now seen corresponding path program 1 times [2024-11-08 16:29:00,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:29:00,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559331275] [2024-11-08 16:29:00,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:29:00,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:29:00,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:29:00,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 16:29:00,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:29:00,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 16:29:00,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:29:00,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 16:29:00,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:29:00,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-08 16:29:00,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:29:00,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 16:29:00,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:29:00,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:29:00,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:29:00,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559331275] [2024-11-08 16:29:00,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559331275] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:29:00,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:29:00,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:29:00,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39758034] [2024-11-08 16:29:00,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:29:00,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:29:00,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:29:00,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:29:00,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:29:00,212 INFO L87 Difference]: Start difference. First operand 37065 states and 59352 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-08 16:29:06,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:29:06,520 INFO L93 Difference]: Finished difference Result 140126 states and 224504 transitions. [2024-11-08 16:29:06,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 16:29:06,521 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 135 [2024-11-08 16:29:06,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:29:06,865 INFO L225 Difference]: With dead ends: 140126 [2024-11-08 16:29:06,865 INFO L226 Difference]: Without dead ends: 105198 [2024-11-08 16:29:06,946 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-08 16:29:06,946 INFO L432 NwaCegarLoop]: 4247 mSDtfsCounter, 5225 mSDsluCounter, 16850 mSDsCounter, 0 mSdLazyCounter, 2667 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5239 SdHoareTripleChecker+Valid, 21097 SdHoareTripleChecker+Invalid, 2754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 2667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-08 16:29:06,947 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5239 Valid, 21097 Invalid, 2754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 2667 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-08 16:29:07,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105198 states. [2024-11-08 16:29:11,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105198 to 70314. [2024-11-08 16:29:11,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70314 states, 64394 states have (on average 1.5370531415970432) internal successors, (98977), 64653 states have internal predecessors, (98977), 4120 states have call successors, (4120), 1543 states have call predecessors, (4120), 1798 states have return successors, (10935), 4373 states have call predecessors, (10935), 4118 states have call successors, (10935) [2024-11-08 16:29:11,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70314 states to 70314 states and 114032 transitions. [2024-11-08 16:29:11,382 INFO L78 Accepts]: Start accepts. Automaton has 70314 states and 114032 transitions. Word has length 135 [2024-11-08 16:29:11,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:29:11,383 INFO L471 AbstractCegarLoop]: Abstraction has 70314 states and 114032 transitions. [2024-11-08 16:29:11,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-08 16:29:11,383 INFO L276 IsEmpty]: Start isEmpty. Operand 70314 states and 114032 transitions. [2024-11-08 16:29:11,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-08 16:29:11,410 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:29:11,410 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:29:11,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 16:29:11,410 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:29:11,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:29:11,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1968677481, now seen corresponding path program 1 times [2024-11-08 16:29:11,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:29:11,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581102234] [2024-11-08 16:29:11,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:29:11,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:29:11,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:29:11,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 16:29:11,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:29:11,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 16:29:11,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:29:11,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 16:29:11,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:29:11,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-08 16:29:11,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:29:11,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 16:29:11,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:29:11,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:29:11,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:29:11,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581102234] [2024-11-08 16:29:11,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581102234] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:29:11,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:29:11,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:29:11,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274674947] [2024-11-08 16:29:11,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:29:11,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:29:11,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:29:11,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:29:11,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:29:11,600 INFO L87 Difference]: Start difference. First operand 70314 states and 114032 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-08 16:29:23,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:29:23,449 INFO L93 Difference]: Finished difference Result 269053 states and 438350 transitions. [2024-11-08 16:29:23,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 16:29:23,450 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 135 [2024-11-08 16:29:23,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted.