./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.14.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.14.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0bef365bd29db1ac20249b1e3139137560ac4134ff54f631658e57cc437eb0ce --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 22:54:53,875 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 22:54:53,961 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 22:54:53,965 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 22:54:53,969 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 22:54:53,997 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 22:54:53,998 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 22:54:53,998 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 22:54:53,999 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 22:54:53,999 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 22:54:53,999 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 22:54:54,000 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 22:54:54,000 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 22:54:54,001 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 22:54:54,001 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 22:54:54,001 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 22:54:54,002 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 22:54:54,002 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 22:54:54,002 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 22:54:54,003 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 22:54:54,003 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 22:54:54,007 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 22:54:54,007 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 22:54:54,008 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 22:54:54,011 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 22:54:54,011 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 22:54:54,011 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 22:54:54,011 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 22:54:54,012 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 22:54:54,012 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 22:54:54,012 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 22:54:54,012 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 22:54:54,013 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 22:54:54,013 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 22:54:54,013 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 22:54:54,014 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 22:54:54,014 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 22:54:54,015 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 22:54:54,015 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 22:54:54,015 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 22:54:54,015 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 22:54:54,016 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 22:54:54,016 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0bef365bd29db1ac20249b1e3139137560ac4134ff54f631658e57cc437eb0ce [2024-11-11 22:54:54,278 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 22:54:54,303 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 22:54:54,306 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 22:54:54,307 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 22:54:54,308 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 22:54:54,309 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.14.cil.c [2024-11-11 22:54:55,771 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 22:54:56,009 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 22:54:56,010 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.14.cil.c [2024-11-11 22:54:56,031 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59493c280/a8fe56972e674812aeda05c77e72551b/FLAG83a3de1ac [2024-11-11 22:54:56,046 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59493c280/a8fe56972e674812aeda05c77e72551b [2024-11-11 22:54:56,049 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 22:54:56,051 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 22:54:56,053 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 22:54:56,053 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 22:54:56,058 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 22:54:56,059 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 10:54:56" (1/1) ... [2024-11-11 22:54:56,061 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@341ccc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:54:56, skipping insertion in model container [2024-11-11 22:54:56,061 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 10:54:56" (1/1) ... [2024-11-11 22:54:56,113 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 22:54:56,343 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/pc_sfifo_1.cil-2+token_ring.14.cil.c[913,926] [2024-11-11 22:54:56,401 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/pc_sfifo_1.cil-2+token_ring.14.cil.c[5977,5990] [2024-11-11 22:54:56,533 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 22:54:56,554 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 22:54:56,567 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/pc_sfifo_1.cil-2+token_ring.14.cil.c[913,926] [2024-11-11 22:54:56,591 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/pc_sfifo_1.cil-2+token_ring.14.cil.c[5977,5990] [2024-11-11 22:54:56,662 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 22:54:56,697 INFO L204 MainTranslator]: Completed translation [2024-11-11 22:54:56,697 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:54:56 WrapperNode [2024-11-11 22:54:56,698 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 22:54:56,700 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 22:54:56,700 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 22:54:56,700 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 22:54:56,708 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:54:56" (1/1) ... [2024-11-11 22:54:56,735 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:54:56" (1/1) ... [2024-11-11 22:54:56,793 INFO L138 Inliner]: procedures = 72, calls = 85, calls flagged for inlining = 46, calls inlined = 46, statements flattened = 1087 [2024-11-11 22:54:56,793 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 22:54:56,794 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 22:54:56,794 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 22:54:56,794 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 22:54:56,809 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:54:56" (1/1) ... [2024-11-11 22:54:56,810 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:54:56" (1/1) ... [2024-11-11 22:54:56,816 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:54:56" (1/1) ... [2024-11-11 22:54:56,846 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-11 22:54:56,847 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:54:56" (1/1) ... [2024-11-11 22:54:56,847 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:54:56" (1/1) ... [2024-11-11 22:54:56,864 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:54:56" (1/1) ... [2024-11-11 22:54:56,882 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:54:56" (1/1) ... [2024-11-11 22:54:56,890 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:54:56" (1/1) ... [2024-11-11 22:54:56,901 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:54:56" (1/1) ... [2024-11-11 22:54:56,914 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 22:54:56,915 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 22:54:56,935 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 22:54:56,936 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 22:54:56,936 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:54:56" (1/1) ... [2024-11-11 22:54:56,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 22:54:56,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 22:54:56,977 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-11 22:54:56,983 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-11 22:54:57,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 22:54:57,065 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-11 22:54:57,065 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-11 22:54:57,065 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2024-11-11 22:54:57,067 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2024-11-11 22:54:57,067 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-11-11 22:54:57,068 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-11-11 22:54:57,068 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-11-11 22:54:57,068 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-11-11 22:54:57,068 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-11-11 22:54:57,068 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-11-11 22:54:57,068 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-11-11 22:54:57,069 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-11-11 22:54:57,069 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-11-11 22:54:57,069 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-11-11 22:54:57,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 22:54:57,069 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-11-11 22:54:57,069 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-11-11 22:54:57,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 22:54:57,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 22:54:57,070 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-11-11 22:54:57,070 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-11-11 22:54:57,070 INFO L130 BoogieDeclarations]: Found specification of procedure error2 [2024-11-11 22:54:57,071 INFO L138 BoogieDeclarations]: Found implementation of procedure error2 [2024-11-11 22:54:57,205 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 22:54:57,207 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 22:54:58,291 INFO L? ?]: Removed 131 outVars from TransFormulas that were not future-live. [2024-11-11 22:54:58,292 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 22:54:58,330 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 22:54:58,330 INFO L316 CfgBuilder]: Removed 19 assume(true) statements. [2024-11-11 22:54:58,331 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 10:54:58 BoogieIcfgContainer [2024-11-11 22:54:58,331 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 22:54:58,333 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 22:54:58,333 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 22:54:58,337 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 22:54:58,337 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 10:54:56" (1/3) ... [2024-11-11 22:54:58,338 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ecde4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 10:54:58, skipping insertion in model container [2024-11-11 22:54:58,338 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:54:56" (2/3) ... [2024-11-11 22:54:58,339 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ecde4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 10:54:58, skipping insertion in model container [2024-11-11 22:54:58,340 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 10:54:58" (3/3) ... [2024-11-11 22:54:58,341 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_1.cil-2+token_ring.14.cil.c [2024-11-11 22:54:58,355 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 22:54:58,355 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-11 22:54:58,437 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 22:54:58,443 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;@4e284c65, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 22:54:58,443 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-11 22:54:58,449 INFO L276 IsEmpty]: Start isEmpty. Operand has 473 states, 426 states have (on average 1.6314553990610328) internal successors, (695), 433 states have internal predecessors, (695), 34 states have call successors, (34), 10 states have call predecessors, (34), 10 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-11 22:54:58,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-11 22:54:58,460 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:54:58,460 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:54:58,461 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:54:58,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:54:58,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1921495546, now seen corresponding path program 1 times [2024-11-11 22:54:58,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:54:58,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257403730] [2024-11-11 22:54:58,474 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:54:58,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:54:58,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:54:58,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:54:58,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:54:58,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 22:54:58,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:54:58,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:54:58,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:54:58,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257403730] [2024-11-11 22:54:58,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257403730] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:54:58,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:54:58,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 22:54:58,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022948946] [2024-11-11 22:54:58,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:54:58,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 22:54:58,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:54:58,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 22:54:58,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-11 22:54:58,853 INFO L87 Difference]: Start difference. First operand has 473 states, 426 states have (on average 1.6314553990610328) internal successors, (695), 433 states have internal predecessors, (695), 34 states have call successors, (34), 10 states have call predecessors, (34), 10 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-11 22:54:59,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:54:59,602 INFO L93 Difference]: Finished difference Result 990 states and 1594 transitions. [2024-11-11 22:54:59,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 22:54:59,604 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2024-11-11 22:54:59,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:54:59,623 INFO L225 Difference]: With dead ends: 990 [2024-11-11 22:54:59,623 INFO L226 Difference]: Without dead ends: 532 [2024-11-11 22:54:59,631 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-11 22:54:59,634 INFO L435 NwaCegarLoop]: 448 mSDtfsCounter, 965 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 991 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-11 22:54:59,635 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [991 Valid, 881 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-11 22:54:59,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2024-11-11 22:54:59,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 526. [2024-11-11 22:54:59,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 475 states have (on average 1.52) internal successors, (722), 480 states have internal predecessors, (722), 38 states have call successors, (38), 12 states have call predecessors, (38), 11 states have return successors, (40), 34 states have call predecessors, (40), 34 states have call successors, (40) [2024-11-11 22:54:59,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 800 transitions. [2024-11-11 22:54:59,732 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 800 transitions. Word has length 44 [2024-11-11 22:54:59,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:54:59,733 INFO L471 AbstractCegarLoop]: Abstraction has 526 states and 800 transitions. [2024-11-11 22:54:59,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-11 22:54:59,733 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 800 transitions. [2024-11-11 22:54:59,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-11 22:54:59,736 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:54:59,736 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:54:59,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-11 22:54:59,736 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:54:59,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:54:59,737 INFO L85 PathProgramCache]: Analyzing trace with hash -542333185, now seen corresponding path program 1 times [2024-11-11 22:54:59,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:54:59,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923582264] [2024-11-11 22:54:59,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:54:59,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:54:59,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:54:59,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:54:59,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:54:59,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-11 22:54:59,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:54:59,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:54:59,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:54:59,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923582264] [2024-11-11 22:54:59,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923582264] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:54:59,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:54:59,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 22:54:59,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403068823] [2024-11-11 22:54:59,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:54:59,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 22:54:59,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:54:59,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 22:54:59,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-11 22:54:59,861 INFO L87 Difference]: Start difference. First operand 526 states and 800 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-11 22:55:00,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:55:00,479 INFO L93 Difference]: Finished difference Result 774 states and 1140 transitions. [2024-11-11 22:55:00,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 22:55:00,480 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2024-11-11 22:55:00,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:55:00,488 INFO L225 Difference]: With dead ends: 774 [2024-11-11 22:55:00,488 INFO L226 Difference]: Without dead ends: 650 [2024-11-11 22:55:00,489 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-11 22:55:00,491 INFO L435 NwaCegarLoop]: 480 mSDtfsCounter, 370 mSDsluCounter, 752 mSDsCounter, 0 mSdLazyCounter, 641 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 372 SdHoareTripleChecker+Valid, 1232 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-11 22:55:00,491 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [372 Valid, 1232 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 641 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-11 22:55:00,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2024-11-11 22:55:00,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 593. [2024-11-11 22:55:00,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 593 states, 536 states have (on average 1.5037313432835822) internal successors, (806), 541 states have internal predecessors, (806), 41 states have call successors, (41), 15 states have call predecessors, (41), 14 states have return successors, (43), 37 states have call predecessors, (43), 37 states have call successors, (43) [2024-11-11 22:55:00,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 890 transitions. [2024-11-11 22:55:00,546 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 890 transitions. Word has length 45 [2024-11-11 22:55:00,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:55:00,548 INFO L471 AbstractCegarLoop]: Abstraction has 593 states and 890 transitions. [2024-11-11 22:55:00,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-11 22:55:00,549 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 890 transitions. [2024-11-11 22:55:00,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-11 22:55:00,551 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:55:00,555 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:55:00,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-11 22:55:00,555 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:55:00,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:55:00,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1826690646, now seen corresponding path program 1 times [2024-11-11 22:55:00,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:55:00,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713595648] [2024-11-11 22:55:00,556 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:00,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:55:00,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:00,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:55:00,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:00,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-11 22:55:00,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:00,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:55:00,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:55:00,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713595648] [2024-11-11 22:55:00,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713595648] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:55:00,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:55:00,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 22:55:00,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465511489] [2024-11-11 22:55:00,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:55:00,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 22:55:00,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:55:00,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 22:55:00,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-11 22:55:00,645 INFO L87 Difference]: Start difference. First operand 593 states and 890 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-11 22:55:01,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:55:01,133 INFO L93 Difference]: Finished difference Result 1001 states and 1449 transitions. [2024-11-11 22:55:01,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 22:55:01,134 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2024-11-11 22:55:01,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:55:01,138 INFO L225 Difference]: With dead ends: 1001 [2024-11-11 22:55:01,138 INFO L226 Difference]: Without dead ends: 810 [2024-11-11 22:55:01,139 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-11 22:55:01,140 INFO L435 NwaCegarLoop]: 451 mSDtfsCounter, 975 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1001 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 22:55:01,140 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1001 Valid, 881 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 22:55:01,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2024-11-11 22:55:01,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 758. [2024-11-11 22:55:01,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 758 states, 682 states have (on average 1.4604105571847508) internal successors, (996), 690 states have internal predecessors, (996), 52 states have call successors, (52), 22 states have call predecessors, (52), 22 states have return successors, (60), 46 states have call predecessors, (60), 48 states have call successors, (60) [2024-11-11 22:55:01,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 758 states to 758 states and 1108 transitions. [2024-11-11 22:55:01,180 INFO L78 Accepts]: Start accepts. Automaton has 758 states and 1108 transitions. Word has length 45 [2024-11-11 22:55:01,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:55:01,180 INFO L471 AbstractCegarLoop]: Abstraction has 758 states and 1108 transitions. [2024-11-11 22:55:01,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-11 22:55:01,180 INFO L276 IsEmpty]: Start isEmpty. Operand 758 states and 1108 transitions. [2024-11-11 22:55:01,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-11 22:55:01,183 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:55:01,183 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:55:01,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-11 22:55:01,184 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:55:01,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:55:01,184 INFO L85 PathProgramCache]: Analyzing trace with hash -2062777962, now seen corresponding path program 1 times [2024-11-11 22:55:01,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:55:01,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341086618] [2024-11-11 22:55:01,185 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:01,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:55:01,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:01,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:55:01,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:01,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-11 22:55:01,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:01,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-11 22:55:01,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:01,303 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-11 22:55:01,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:55:01,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341086618] [2024-11-11 22:55:01,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341086618] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:55:01,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:55:01,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 22:55:01,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918589131] [2024-11-11 22:55:01,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:55:01,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 22:55:01,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:55:01,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 22:55:01,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-11 22:55:01,306 INFO L87 Difference]: Start difference. First operand 758 states and 1108 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-11 22:55:01,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:55:01,952 INFO L93 Difference]: Finished difference Result 1342 states and 1893 transitions. [2024-11-11 22:55:01,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 22:55:01,953 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 62 [2024-11-11 22:55:01,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:55:01,960 INFO L225 Difference]: With dead ends: 1342 [2024-11-11 22:55:01,960 INFO L226 Difference]: Without dead ends: 986 [2024-11-11 22:55:01,963 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-11 22:55:01,964 INFO L435 NwaCegarLoop]: 502 mSDtfsCounter, 354 mSDsluCounter, 783 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 1285 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-11 22:55:01,964 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 1285 Invalid, 698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 663 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-11 22:55:01,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 986 states. [2024-11-11 22:55:02,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 986 to 948. [2024-11-11 22:55:02,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 848 states have (on average 1.4103773584905661) internal successors, (1196), 858 states have internal predecessors, (1196), 66 states have call successors, (66), 30 states have call predecessors, (66), 32 states have return successors, (84), 60 states have call predecessors, (84), 62 states have call successors, (84) [2024-11-11 22:55:02,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1346 transitions. [2024-11-11 22:55:02,021 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1346 transitions. Word has length 62 [2024-11-11 22:55:02,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:55:02,023 INFO L471 AbstractCegarLoop]: Abstraction has 948 states and 1346 transitions. [2024-11-11 22:55:02,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-11 22:55:02,023 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1346 transitions. [2024-11-11 22:55:02,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-11 22:55:02,025 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:55:02,026 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:55:02,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-11 22:55:02,027 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:55:02,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:55:02,028 INFO L85 PathProgramCache]: Analyzing trace with hash -2096414060, now seen corresponding path program 1 times [2024-11-11 22:55:02,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:55:02,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474542670] [2024-11-11 22:55:02,028 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:02,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:55:02,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:02,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:55:02,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:02,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-11 22:55:02,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:02,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-11 22:55:02,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:02,111 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-11 22:55:02,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:55:02,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474542670] [2024-11-11 22:55:02,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474542670] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:55:02,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:55:02,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 22:55:02,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707442517] [2024-11-11 22:55:02,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:55:02,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 22:55:02,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:55:02,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 22:55:02,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-11 22:55:02,117 INFO L87 Difference]: Start difference. First operand 948 states and 1346 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-11 22:55:02,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:55:02,664 INFO L93 Difference]: Finished difference Result 1601 states and 2199 transitions. [2024-11-11 22:55:02,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 22:55:02,666 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 67 [2024-11-11 22:55:02,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:55:02,674 INFO L225 Difference]: With dead ends: 1601 [2024-11-11 22:55:02,675 INFO L226 Difference]: Without dead ends: 1147 [2024-11-11 22:55:02,677 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-11 22:55:02,678 INFO L435 NwaCegarLoop]: 448 mSDtfsCounter, 962 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 988 SdHoareTripleChecker+Valid, 880 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-11 22:55:02,680 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [988 Valid, 880 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-11 22:55:02,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1147 states. [2024-11-11 22:55:02,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1147 to 1092. [2024-11-11 22:55:02,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1092 states, 976 states have (on average 1.3801229508196722) internal successors, (1347), 988 states have internal predecessors, (1347), 74 states have call successors, (74), 36 states have call predecessors, (74), 40 states have return successors, (98), 68 states have call predecessors, (98), 70 states have call successors, (98) [2024-11-11 22:55:02,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1092 states to 1092 states and 1519 transitions. [2024-11-11 22:55:02,755 INFO L78 Accepts]: Start accepts. Automaton has 1092 states and 1519 transitions. Word has length 67 [2024-11-11 22:55:02,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:55:02,756 INFO L471 AbstractCegarLoop]: Abstraction has 1092 states and 1519 transitions. [2024-11-11 22:55:02,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-11 22:55:02,756 INFO L276 IsEmpty]: Start isEmpty. Operand 1092 states and 1519 transitions. [2024-11-11 22:55:02,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-11 22:55:02,758 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:55:02,758 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:55:02,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-11 22:55:02,759 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:55:02,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:55:02,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1043129785, now seen corresponding path program 1 times [2024-11-11 22:55:02,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:55:02,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939631242] [2024-11-11 22:55:02,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:02,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:55:02,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:02,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:55:02,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:02,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 22:55:02,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:02,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-11 22:55:02,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:02,889 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-11 22:55:02,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:55:02,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939631242] [2024-11-11 22:55:02,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939631242] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 22:55:02,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1900371900] [2024-11-11 22:55:02,890 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:02,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 22:55:02,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 22:55:02,892 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 22:55:02,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-11 22:55:03,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:03,023 INFO L256 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-11 22:55:03,028 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 22:55:03,115 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:55:03,115 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 22:55:03,166 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-11 22:55:03,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1900371900] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-11 22:55:03,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-11 22:55:03,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 4] total 8 [2024-11-11 22:55:03,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24494673] [2024-11-11 22:55:03,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:55:03,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 22:55:03,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:55:03,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 22:55:03,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:55:03,170 INFO L87 Difference]: Start difference. First operand 1092 states and 1519 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-11 22:55:03,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:55:03,365 INFO L93 Difference]: Finished difference Result 1148 states and 1587 transitions. [2024-11-11 22:55:03,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 22:55:03,366 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 68 [2024-11-11 22:55:03,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:55:03,372 INFO L225 Difference]: With dead ends: 1148 [2024-11-11 22:55:03,372 INFO L226 Difference]: Without dead ends: 1145 [2024-11-11 22:55:03,373 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-11 22:55:03,373 INFO L435 NwaCegarLoop]: 733 mSDtfsCounter, 1297 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1297 SdHoareTripleChecker+Valid, 800 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 22:55:03,374 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1297 Valid, 800 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 22:55:03,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1145 states. [2024-11-11 22:55:03,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1145 to 1091. [2024-11-11 22:55:03,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1091 states, 976 states have (on average 1.3780737704918034) internal successors, (1345), 987 states have internal predecessors, (1345), 73 states have call successors, (73), 36 states have call predecessors, (73), 40 states have return successors, (98), 68 states have call predecessors, (98), 70 states have call successors, (98) [2024-11-11 22:55:03,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1091 states to 1091 states and 1516 transitions. [2024-11-11 22:55:03,445 INFO L78 Accepts]: Start accepts. Automaton has 1091 states and 1516 transitions. Word has length 68 [2024-11-11 22:55:03,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:55:03,446 INFO L471 AbstractCegarLoop]: Abstraction has 1091 states and 1516 transitions. [2024-11-11 22:55:03,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-11 22:55:03,447 INFO L276 IsEmpty]: Start isEmpty. Operand 1091 states and 1516 transitions. [2024-11-11 22:55:03,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-11 22:55:03,449 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:55:03,449 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:55:03,467 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-11 22:55:03,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-11 22:55:03,650 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:55:03,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:55:03,651 INFO L85 PathProgramCache]: Analyzing trace with hash -2024136905, now seen corresponding path program 1 times [2024-11-11 22:55:03,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:55:03,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389286822] [2024-11-11 22:55:03,651 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:03,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:55:03,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:03,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:55:03,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:03,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 22:55:03,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:03,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-11 22:55:03,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:03,741 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-11 22:55:03,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:55:03,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389286822] [2024-11-11 22:55:03,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389286822] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 22:55:03,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1549099417] [2024-11-11 22:55:03,742 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:03,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 22:55:03,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 22:55:03,744 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 22:55:03,746 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-11 22:55:03,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:03,867 INFO L256 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-11 22:55:03,870 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 22:55:04,148 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:55:04,148 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 22:55:04,230 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-11 22:55:04,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1549099417] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 22:55:04,230 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 22:55:04,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 4] total 11 [2024-11-11 22:55:04,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033662705] [2024-11-11 22:55:04,231 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 22:55:04,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-11 22:55:04,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:55:04,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-11 22:55:04,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-11 22:55:04,232 INFO L87 Difference]: Start difference. First operand 1091 states and 1516 transitions. Second operand has 11 states, 11 states have (on average 13.727272727272727) internal successors, (151), 10 states have internal predecessors, (151), 7 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-11-11 22:55:05,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:55:05,933 INFO L93 Difference]: Finished difference Result 2598 states and 3504 transitions. [2024-11-11 22:55:05,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-11 22:55:05,934 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 13.727272727272727) internal successors, (151), 10 states have internal predecessors, (151), 7 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) Word has length 69 [2024-11-11 22:55:05,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:55:05,943 INFO L225 Difference]: With dead ends: 2598 [2024-11-11 22:55:05,944 INFO L226 Difference]: Without dead ends: 2054 [2024-11-11 22:55:05,947 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=162, Invalid=768, Unknown=0, NotChecked=0, Total=930 [2024-11-11 22:55:05,948 INFO L435 NwaCegarLoop]: 520 mSDtfsCounter, 1729 mSDsluCounter, 3327 mSDsCounter, 0 mSdLazyCounter, 2536 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1762 SdHoareTripleChecker+Valid, 3847 SdHoareTripleChecker+Invalid, 2635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 2536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-11 22:55:05,948 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1762 Valid, 3847 Invalid, 2635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 2536 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-11 22:55:05,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2054 states. [2024-11-11 22:55:06,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2054 to 1454. [2024-11-11 22:55:06,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1454 states, 1300 states have (on average 1.3423076923076922) internal successors, (1745), 1319 states have internal predecessors, (1745), 93 states have call successors, (93), 50 states have call predecessors, (93), 59 states have return successors, (132), 85 states have call predecessors, (132), 90 states have call successors, (132) [2024-11-11 22:55:06,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1454 states to 1454 states and 1970 transitions. [2024-11-11 22:55:06,042 INFO L78 Accepts]: Start accepts. Automaton has 1454 states and 1970 transitions. Word has length 69 [2024-11-11 22:55:06,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:55:06,042 INFO L471 AbstractCegarLoop]: Abstraction has 1454 states and 1970 transitions. [2024-11-11 22:55:06,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 13.727272727272727) internal successors, (151), 10 states have internal predecessors, (151), 7 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-11-11 22:55:06,043 INFO L276 IsEmpty]: Start isEmpty. Operand 1454 states and 1970 transitions. [2024-11-11 22:55:06,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-11 22:55:06,046 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:55:06,046 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:55:06,063 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-11 22:55:06,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-11 22:55:06,247 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:55:06,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:55:06,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1335038024, now seen corresponding path program 1 times [2024-11-11 22:55:06,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:55:06,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848385447] [2024-11-11 22:55:06,248 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:06,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:55:06,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:06,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:55:06,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:06,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 22:55:06,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:06,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-11 22:55:06,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:06,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-11 22:55:06,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:06,345 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-11 22:55:06,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:55:06,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848385447] [2024-11-11 22:55:06,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848385447] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 22:55:06,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [266678581] [2024-11-11 22:55:06,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:06,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 22:55:06,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 22:55:06,348 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 22:55:06,351 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-11 22:55:06,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:06,475 INFO L256 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-11 22:55:06,478 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 22:55:06,507 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-11 22:55:06,507 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 22:55:06,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [266678581] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:55:06,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 22:55:06,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-11 22:55:06,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984451895] [2024-11-11 22:55:06,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:55:06,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 22:55:06,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:55:06,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 22:55:06,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:55:06,510 INFO L87 Difference]: Start difference. First operand 1454 states and 1970 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-11 22:55:06,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:55:06,573 INFO L93 Difference]: Finished difference Result 2151 states and 2874 transitions. [2024-11-11 22:55:06,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 22:55:06,574 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 88 [2024-11-11 22:55:06,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:55:06,580 INFO L225 Difference]: With dead ends: 2151 [2024-11-11 22:55:06,581 INFO L226 Difference]: Without dead ends: 1332 [2024-11-11 22:55:06,583 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:55:06,583 INFO L435 NwaCegarLoop]: 739 mSDtfsCounter, 669 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 669 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:55:06,584 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [669 Valid, 814 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 22:55:06,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1332 states. [2024-11-11 22:55:06,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1332 to 1317. [2024-11-11 22:55:06,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1317 states, 1179 states have (on average 1.3460559796437659) internal successors, (1587), 1197 states have internal predecessors, (1587), 85 states have call successors, (85), 44 states have call predecessors, (85), 51 states have return successors, (118), 76 states have call predecessors, (118), 82 states have call successors, (118) [2024-11-11 22:55:06,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1317 states to 1317 states and 1790 transitions. [2024-11-11 22:55:06,645 INFO L78 Accepts]: Start accepts. Automaton has 1317 states and 1790 transitions. Word has length 88 [2024-11-11 22:55:06,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:55:06,645 INFO L471 AbstractCegarLoop]: Abstraction has 1317 states and 1790 transitions. [2024-11-11 22:55:06,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-11 22:55:06,645 INFO L276 IsEmpty]: Start isEmpty. Operand 1317 states and 1790 transitions. [2024-11-11 22:55:06,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-11 22:55:06,648 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:55:06,649 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:55:06,666 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-11 22:55:06,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 22:55:06,857 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:55:06,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:55:06,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1839711785, now seen corresponding path program 1 times [2024-11-11 22:55:06,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:55:06,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252537532] [2024-11-11 22:55:06,858 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:06,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:55:06,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:06,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:55:06,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:06,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 22:55:06,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:06,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-11 22:55:06,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:06,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-11 22:55:06,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:06,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-11 22:55:07,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:07,004 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 13 proven. 10 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-11 22:55:07,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:55:07,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252537532] [2024-11-11 22:55:07,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252537532] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 22:55:07,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [460852113] [2024-11-11 22:55:07,005 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:07,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 22:55:07,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 22:55:07,007 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 22:55:07,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-11 22:55:07,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:07,133 INFO L256 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-11 22:55:07,136 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 22:55:07,164 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-11 22:55:07,164 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 22:55:07,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [460852113] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:55:07,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 22:55:07,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-11 22:55:07,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580452062] [2024-11-11 22:55:07,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:55:07,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 22:55:07,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:55:07,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 22:55:07,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:55:07,169 INFO L87 Difference]: Start difference. First operand 1317 states and 1790 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-11 22:55:07,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:55:07,221 INFO L93 Difference]: Finished difference Result 1696 states and 2258 transitions. [2024-11-11 22:55:07,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 22:55:07,222 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) Word has length 103 [2024-11-11 22:55:07,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:55:07,225 INFO L225 Difference]: With dead ends: 1696 [2024-11-11 22:55:07,225 INFO L226 Difference]: Without dead ends: 396 [2024-11-11 22:55:07,227 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:55:07,229 INFO L435 NwaCegarLoop]: 754 mSDtfsCounter, 62 mSDsluCounter, 684 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 1438 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:55:07,229 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 1438 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 22:55:07,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2024-11-11 22:55:07,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 396. [2024-11-11 22:55:07,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 361 states have (on average 1.559556786703601) internal successors, (563), 363 states have internal predecessors, (563), 28 states have call successors, (28), 7 states have call predecessors, (28), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-11 22:55:07,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 617 transitions. [2024-11-11 22:55:07,244 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 617 transitions. Word has length 103 [2024-11-11 22:55:07,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:55:07,244 INFO L471 AbstractCegarLoop]: Abstraction has 396 states and 617 transitions. [2024-11-11 22:55:07,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-11 22:55:07,245 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 617 transitions. [2024-11-11 22:55:07,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-11 22:55:07,247 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:55:07,247 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:55:07,265 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-11 22:55:07,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 22:55:07,448 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:55:07,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:55:07,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1960994089, now seen corresponding path program 1 times [2024-11-11 22:55:07,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:55:07,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059718993] [2024-11-11 22:55:07,449 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:07,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:55:07,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:07,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:55:07,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:07,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 22:55:07,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:07,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:55:07,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:07,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-11 22:55:07,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:07,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-11 22:55:07,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:07,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:55:07,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:55:07,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059718993] [2024-11-11 22:55:07,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059718993] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:55:07,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:55:07,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 22:55:07,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130288677] [2024-11-11 22:55:07,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:55:07,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 22:55:07,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:55:07,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 22:55:07,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 22:55:07,674 INFO L87 Difference]: Start difference. First operand 396 states and 617 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 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) [2024-11-11 22:55:09,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:55:09,495 INFO L93 Difference]: Finished difference Result 927 states and 1470 transitions. [2024-11-11 22:55:09,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-11 22:55:09,496 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 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 179 [2024-11-11 22:55:09,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:55:09,500 INFO L225 Difference]: With dead ends: 927 [2024-11-11 22:55:09,500 INFO L226 Difference]: Without dead ends: 538 [2024-11-11 22:55:09,501 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:55:09,501 INFO L435 NwaCegarLoop]: 364 mSDtfsCounter, 1057 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 1037 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1081 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 1097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-11 22:55:09,502 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1081 Valid, 792 Invalid, 1097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1037 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-11 22:55:09,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2024-11-11 22:55:09,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 396. [2024-11-11 22:55:09,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 361 states have (on average 1.556786703601108) internal successors, (562), 363 states have internal predecessors, (562), 28 states have call successors, (28), 7 states have call predecessors, (28), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-11 22:55:09,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 616 transitions. [2024-11-11 22:55:09,528 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 616 transitions. Word has length 179 [2024-11-11 22:55:09,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:55:09,529 INFO L471 AbstractCegarLoop]: Abstraction has 396 states and 616 transitions. [2024-11-11 22:55:09,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 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) [2024-11-11 22:55:09,529 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 616 transitions. [2024-11-11 22:55:09,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-11 22:55:09,530 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:55:09,531 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:55:09,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-11 22:55:09,531 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:55:09,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:55:09,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1685380437, now seen corresponding path program 1 times [2024-11-11 22:55:09,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:55:09,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881211620] [2024-11-11 22:55:09,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:09,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:55:09,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:09,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:55:09,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:09,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 22:55:09,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:09,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:55:09,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:09,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-11 22:55:09,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:09,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-11 22:55:09,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:09,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:55:09,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:55:09,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881211620] [2024-11-11 22:55:09,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881211620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:55:09,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:55:09,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 22:55:09,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401228420] [2024-11-11 22:55:09,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:55:09,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 22:55:09,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:55:09,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 22:55:09,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 22:55:09,722 INFO L87 Difference]: Start difference. First operand 396 states and 616 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 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) [2024-11-11 22:55:11,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:55:11,503 INFO L93 Difference]: Finished difference Result 919 states and 1453 transitions. [2024-11-11 22:55:11,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-11 22:55:11,504 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 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 179 [2024-11-11 22:55:11,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:55:11,507 INFO L225 Difference]: With dead ends: 919 [2024-11-11 22:55:11,508 INFO L226 Difference]: Without dead ends: 538 [2024-11-11 22:55:11,509 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:55:11,509 INFO L435 NwaCegarLoop]: 363 mSDtfsCounter, 1048 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 1036 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1072 SdHoareTripleChecker+Valid, 790 SdHoareTripleChecker+Invalid, 1096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-11 22:55:11,509 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1072 Valid, 790 Invalid, 1096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1036 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-11 22:55:11,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2024-11-11 22:55:11,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 396. [2024-11-11 22:55:11,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 361 states have (on average 1.554016620498615) internal successors, (561), 363 states have internal predecessors, (561), 28 states have call successors, (28), 7 states have call predecessors, (28), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-11 22:55:11,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 615 transitions. [2024-11-11 22:55:11,534 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 615 transitions. Word has length 179 [2024-11-11 22:55:11,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:55:11,534 INFO L471 AbstractCegarLoop]: Abstraction has 396 states and 615 transitions. [2024-11-11 22:55:11,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 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) [2024-11-11 22:55:11,535 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 615 transitions. [2024-11-11 22:55:11,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-11 22:55:11,536 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:55:11,537 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:55:11,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-11 22:55:11,537 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:55:11,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:55:11,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1186823635, now seen corresponding path program 1 times [2024-11-11 22:55:11,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:55:11,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296707608] [2024-11-11 22:55:11,538 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:11,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:55:11,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:11,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:55:11,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:11,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 22:55:11,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:11,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:55:11,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:11,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-11 22:55:11,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:11,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-11 22:55:11,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:11,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:55:11,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:55:11,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296707608] [2024-11-11 22:55:11,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296707608] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:55:11,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:55:11,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 22:55:11,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157231069] [2024-11-11 22:55:11,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:55:11,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 22:55:11,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:55:11,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 22:55:11,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-11 22:55:11,820 INFO L87 Difference]: Start difference. First operand 396 states and 615 transitions. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 4 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:55:14,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:55:14,446 INFO L93 Difference]: Finished difference Result 1448 states and 2304 transitions. [2024-11-11 22:55:14,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 22:55:14,447 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 4 states have internal predecessors, (168), 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 179 [2024-11-11 22:55:14,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:55:14,452 INFO L225 Difference]: With dead ends: 1448 [2024-11-11 22:55:14,452 INFO L226 Difference]: Without dead ends: 1073 [2024-11-11 22:55:14,453 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-11 22:55:14,454 INFO L435 NwaCegarLoop]: 333 mSDtfsCounter, 1585 mSDsluCounter, 1019 mSDsCounter, 0 mSdLazyCounter, 2269 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1604 SdHoareTripleChecker+Valid, 1352 SdHoareTripleChecker+Invalid, 2385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 2269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-11 22:55:14,454 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1604 Valid, 1352 Invalid, 2385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 2269 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-11 22:55:14,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states. [2024-11-11 22:55:14,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 788. [2024-11-11 22:55:14,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 788 states, 725 states have (on average 1.566896551724138) internal successors, (1136), 728 states have internal predecessors, (1136), 49 states have call successors, (49), 13 states have call predecessors, (49), 13 states have return successors, (50), 47 states have call predecessors, (50), 47 states have call successors, (50) [2024-11-11 22:55:14,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 788 states to 788 states and 1235 transitions. [2024-11-11 22:55:14,505 INFO L78 Accepts]: Start accepts. Automaton has 788 states and 1235 transitions. Word has length 179 [2024-11-11 22:55:14,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:55:14,505 INFO L471 AbstractCegarLoop]: Abstraction has 788 states and 1235 transitions. [2024-11-11 22:55:14,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 4 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:55:14,505 INFO L276 IsEmpty]: Start isEmpty. Operand 788 states and 1235 transitions. [2024-11-11 22:55:14,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-11 22:55:14,507 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:55:14,507 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:55:14,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-11 22:55:14,508 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:55:14,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:55:14,508 INFO L85 PathProgramCache]: Analyzing trace with hash -198916145, now seen corresponding path program 1 times [2024-11-11 22:55:14,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:55:14,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272363434] [2024-11-11 22:55:14,509 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:14,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:55:14,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:14,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:55:14,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:14,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 22:55:14,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:14,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:55:14,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:14,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-11 22:55:14,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:14,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-11 22:55:14,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:14,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:55:14,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:55:14,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272363434] [2024-11-11 22:55:14,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272363434] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:55:14,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:55:14,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:55:14,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493365435] [2024-11-11 22:55:14,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:55:14,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:55:14,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:55:14,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:55:14,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:55:14,839 INFO L87 Difference]: Start difference. First operand 788 states and 1235 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:55:18,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:55:18,408 INFO L93 Difference]: Finished difference Result 2393 states and 3816 transitions. [2024-11-11 22:55:18,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:55:18,409 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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 179 [2024-11-11 22:55:18,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:55:18,416 INFO L225 Difference]: With dead ends: 2393 [2024-11-11 22:55:18,416 INFO L226 Difference]: Without dead ends: 1626 [2024-11-11 22:55:18,418 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:55:18,419 INFO L435 NwaCegarLoop]: 591 mSDtfsCounter, 1616 mSDsluCounter, 2037 mSDsCounter, 0 mSdLazyCounter, 3604 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1635 SdHoareTripleChecker+Valid, 2628 SdHoareTripleChecker+Invalid, 3669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-11 22:55:18,419 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1635 Valid, 2628 Invalid, 3669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3604 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-11 22:55:18,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1626 states. [2024-11-11 22:55:18,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1626 to 1153. [2024-11-11 22:55:18,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1153 states, 1062 states have (on average 1.5602636534839924) internal successors, (1657), 1066 states have internal predecessors, (1657), 70 states have call successors, (70), 19 states have call predecessors, (70), 20 states have return successors, (73), 69 states have call predecessors, (73), 68 states have call successors, (73) [2024-11-11 22:55:18,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1153 states to 1153 states and 1800 transitions. [2024-11-11 22:55:18,511 INFO L78 Accepts]: Start accepts. Automaton has 1153 states and 1800 transitions. Word has length 179 [2024-11-11 22:55:18,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:55:18,511 INFO L471 AbstractCegarLoop]: Abstraction has 1153 states and 1800 transitions. [2024-11-11 22:55:18,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:55:18,511 INFO L276 IsEmpty]: Start isEmpty. Operand 1153 states and 1800 transitions. [2024-11-11 22:55:18,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-11 22:55:18,513 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:55:18,513 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:55:18,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-11 22:55:18,514 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:55:18,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:55:18,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1968387759, now seen corresponding path program 1 times [2024-11-11 22:55:18,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:55:18,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70716104] [2024-11-11 22:55:18,514 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:18,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:55:18,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:18,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:55:18,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:18,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 22:55:18,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:18,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:55:18,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:18,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-11 22:55:18,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:18,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-11 22:55:18,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:18,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:55:18,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:55:18,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70716104] [2024-11-11 22:55:18,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70716104] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:55:18,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:55:18,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:55:18,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115203033] [2024-11-11 22:55:18,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:55:18,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:55:18,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:55:18,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:55:18,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:55:18,814 INFO L87 Difference]: Start difference. First operand 1153 states and 1800 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:55:22,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:55:22,378 INFO L93 Difference]: Finished difference Result 3787 states and 6027 transitions. [2024-11-11 22:55:22,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:55:22,379 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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 179 [2024-11-11 22:55:22,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:55:22,393 INFO L225 Difference]: With dead ends: 3787 [2024-11-11 22:55:22,393 INFO L226 Difference]: Without dead ends: 2655 [2024-11-11 22:55:22,398 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:55:22,399 INFO L435 NwaCegarLoop]: 589 mSDtfsCounter, 1614 mSDsluCounter, 2037 mSDsCounter, 0 mSdLazyCounter, 3600 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1633 SdHoareTripleChecker+Valid, 2626 SdHoareTripleChecker+Invalid, 3667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-11 22:55:22,400 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1633 Valid, 2626 Invalid, 3667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3600 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-11 22:55:22,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2655 states. [2024-11-11 22:55:22,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2655 to 1884. [2024-11-11 22:55:22,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1884 states, 1737 states have (on average 1.5544041450777202) internal successors, (2700), 1743 states have internal predecessors, (2700), 112 states have call successors, (112), 31 states have call predecessors, (112), 34 states have return successors, (123), 113 states have call predecessors, (123), 110 states have call successors, (123) [2024-11-11 22:55:22,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1884 states to 1884 states and 2935 transitions. [2024-11-11 22:55:22,556 INFO L78 Accepts]: Start accepts. Automaton has 1884 states and 2935 transitions. Word has length 179 [2024-11-11 22:55:22,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:55:22,557 INFO L471 AbstractCegarLoop]: Abstraction has 1884 states and 2935 transitions. [2024-11-11 22:55:22,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:55:22,557 INFO L276 IsEmpty]: Start isEmpty. Operand 1884 states and 2935 transitions. [2024-11-11 22:55:22,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-11 22:55:22,559 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:55:22,560 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:55:22,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-11 22:55:22,560 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:55:22,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:55:22,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1715310479, now seen corresponding path program 1 times [2024-11-11 22:55:22,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:55:22,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551438917] [2024-11-11 22:55:22,561 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:22,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:55:22,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:22,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:55:22,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:22,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 22:55:22,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:22,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:55:22,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:22,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-11 22:55:22,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:22,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-11 22:55:22,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:22,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:55:22,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:55:22,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551438917] [2024-11-11 22:55:22,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551438917] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:55:22,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:55:22,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:55:22,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232152218] [2024-11-11 22:55:22,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:55:22,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:55:22,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:55:22,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:55:22,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:55:22,826 INFO L87 Difference]: Start difference. First operand 1884 states and 2935 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:55:24,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:55:24,538 INFO L93 Difference]: Finished difference Result 4506 states and 7153 transitions. [2024-11-11 22:55:24,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 22:55:24,538 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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 179 [2024-11-11 22:55:24,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:55:24,550 INFO L225 Difference]: With dead ends: 4506 [2024-11-11 22:55:24,551 INFO L226 Difference]: Without dead ends: 2643 [2024-11-11 22:55:24,557 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-11 22:55:24,557 INFO L435 NwaCegarLoop]: 318 mSDtfsCounter, 1324 mSDsluCounter, 792 mSDsCounter, 0 mSdLazyCounter, 1684 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1344 SdHoareTripleChecker+Valid, 1110 SdHoareTripleChecker+Invalid, 1781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 1684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-11 22:55:24,557 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1344 Valid, 1110 Invalid, 1781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 1684 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-11 22:55:24,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2643 states. [2024-11-11 22:55:24,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2643 to 1884. [2024-11-11 22:55:24,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1884 states, 1737 states have (on average 1.551525618883132) internal successors, (2695), 1743 states have internal predecessors, (2695), 112 states have call successors, (112), 31 states have call predecessors, (112), 34 states have return successors, (123), 113 states have call predecessors, (123), 110 states have call successors, (123) [2024-11-11 22:55:24,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1884 states to 1884 states and 2930 transitions. [2024-11-11 22:55:24,690 INFO L78 Accepts]: Start accepts. Automaton has 1884 states and 2930 transitions. Word has length 179 [2024-11-11 22:55:24,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:55:24,691 INFO L471 AbstractCegarLoop]: Abstraction has 1884 states and 2930 transitions. [2024-11-11 22:55:24,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:55:24,691 INFO L276 IsEmpty]: Start isEmpty. Operand 1884 states and 2930 transitions. [2024-11-11 22:55:24,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-11 22:55:24,693 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:55:24,694 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:55:24,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-11 22:55:24,694 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:55:24,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:55:24,694 INFO L85 PathProgramCache]: Analyzing trace with hash 310118801, now seen corresponding path program 1 times [2024-11-11 22:55:24,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:55:24,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587149474] [2024-11-11 22:55:24,695 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:24,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:55:24,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:24,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:55:24,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:24,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 22:55:24,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:24,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:55:24,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:24,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-11 22:55:24,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:24,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-11 22:55:24,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:24,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:55:24,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:55:24,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587149474] [2024-11-11 22:55:24,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587149474] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:55:24,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:55:24,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:55:24,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114130236] [2024-11-11 22:55:24,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:55:24,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:55:24,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:55:24,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:55:24,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:55:24,988 INFO L87 Difference]: Start difference. First operand 1884 states and 2930 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:55:26,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:55:26,813 INFO L93 Difference]: Finished difference Result 4500 states and 7127 transitions. [2024-11-11 22:55:26,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 22:55:26,814 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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 179 [2024-11-11 22:55:26,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:55:26,825 INFO L225 Difference]: With dead ends: 4500 [2024-11-11 22:55:26,825 INFO L226 Difference]: Without dead ends: 2637 [2024-11-11 22:55:26,830 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-11 22:55:26,831 INFO L435 NwaCegarLoop]: 318 mSDtfsCounter, 1160 mSDsluCounter, 1004 mSDsCounter, 0 mSdLazyCounter, 1835 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1180 SdHoareTripleChecker+Valid, 1322 SdHoareTripleChecker+Invalid, 1904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-11 22:55:26,831 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1180 Valid, 1322 Invalid, 1904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1835 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-11 22:55:26,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2637 states. [2024-11-11 22:55:26,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2637 to 1884. [2024-11-11 22:55:26,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1884 states, 1737 states have (on average 1.5486470926885434) internal successors, (2690), 1743 states have internal predecessors, (2690), 112 states have call successors, (112), 31 states have call predecessors, (112), 34 states have return successors, (123), 113 states have call predecessors, (123), 110 states have call successors, (123) [2024-11-11 22:55:26,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1884 states to 1884 states and 2925 transitions. [2024-11-11 22:55:26,985 INFO L78 Accepts]: Start accepts. Automaton has 1884 states and 2925 transitions. Word has length 179 [2024-11-11 22:55:26,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:55:26,985 INFO L471 AbstractCegarLoop]: Abstraction has 1884 states and 2925 transitions. [2024-11-11 22:55:26,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:55:26,985 INFO L276 IsEmpty]: Start isEmpty. Operand 1884 states and 2925 transitions. [2024-11-11 22:55:26,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-11 22:55:26,987 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:55:26,988 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:55:26,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-11 22:55:26,988 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:55:26,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:55:26,989 INFO L85 PathProgramCache]: Analyzing trace with hash -2090514609, now seen corresponding path program 1 times [2024-11-11 22:55:26,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:55:26,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754442175] [2024-11-11 22:55:26,989 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:26,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:55:27,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:27,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:55:27,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:27,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 22:55:27,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:27,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:55:27,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:27,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-11 22:55:27,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:27,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-11 22:55:27,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:27,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:55:27,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:55:27,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754442175] [2024-11-11 22:55:27,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754442175] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:55:27,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:55:27,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:55:27,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864270647] [2024-11-11 22:55:27,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:55:27,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:55:27,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:55:27,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:55:27,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:55:27,244 INFO L87 Difference]: Start difference. First operand 1884 states and 2925 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:55:29,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:55:29,012 INFO L93 Difference]: Finished difference Result 4488 states and 7089 transitions. [2024-11-11 22:55:29,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 22:55:29,012 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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 179 [2024-11-11 22:55:29,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:55:29,024 INFO L225 Difference]: With dead ends: 4488 [2024-11-11 22:55:29,024 INFO L226 Difference]: Without dead ends: 2625 [2024-11-11 22:55:29,029 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-11 22:55:29,029 INFO L435 NwaCegarLoop]: 317 mSDtfsCounter, 1235 mSDsluCounter, 1004 mSDsCounter, 0 mSdLazyCounter, 1690 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1255 SdHoareTripleChecker+Valid, 1321 SdHoareTripleChecker+Invalid, 1760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 1690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-11 22:55:29,030 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1255 Valid, 1321 Invalid, 1760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 1690 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-11 22:55:29,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2625 states. [2024-11-11 22:55:29,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2625 to 1884. [2024-11-11 22:55:29,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1884 states, 1737 states have (on average 1.545768566493955) internal successors, (2685), 1743 states have internal predecessors, (2685), 112 states have call successors, (112), 31 states have call predecessors, (112), 34 states have return successors, (123), 113 states have call predecessors, (123), 110 states have call successors, (123) [2024-11-11 22:55:29,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1884 states to 1884 states and 2920 transitions. [2024-11-11 22:55:29,192 INFO L78 Accepts]: Start accepts. Automaton has 1884 states and 2920 transitions. Word has length 179 [2024-11-11 22:55:29,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:55:29,193 INFO L471 AbstractCegarLoop]: Abstraction has 1884 states and 2920 transitions. [2024-11-11 22:55:29,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:55:29,193 INFO L276 IsEmpty]: Start isEmpty. Operand 1884 states and 2920 transitions. [2024-11-11 22:55:29,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-11 22:55:29,195 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:55:29,196 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:55:29,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-11 22:55:29,196 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:55:29,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:55:29,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1281285261, now seen corresponding path program 1 times [2024-11-11 22:55:29,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:55:29,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043495607] [2024-11-11 22:55:29,197 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:29,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:55:29,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:29,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:55:29,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:29,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 22:55:29,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:29,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:55:29,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:29,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-11 22:55:29,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:29,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-11 22:55:29,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:29,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:55:29,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:55:29,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043495607] [2024-11-11 22:55:29,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043495607] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:55:29,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:55:29,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:55:29,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882146300] [2024-11-11 22:55:29,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:55:29,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:55:29,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:55:29,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:55:29,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:55:29,463 INFO L87 Difference]: Start difference. First operand 1884 states and 2920 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:55:32,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:55:32,884 INFO L93 Difference]: Finished difference Result 6445 states and 10138 transitions. [2024-11-11 22:55:32,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:55:32,885 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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 179 [2024-11-11 22:55:32,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:55:32,905 INFO L225 Difference]: With dead ends: 6445 [2024-11-11 22:55:32,905 INFO L226 Difference]: Without dead ends: 4582 [2024-11-11 22:55:32,912 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:55:32,912 INFO L435 NwaCegarLoop]: 589 mSDtfsCounter, 1593 mSDsluCounter, 2037 mSDsCounter, 0 mSdLazyCounter, 3494 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1612 SdHoareTripleChecker+Valid, 2626 SdHoareTripleChecker+Invalid, 3561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-11 22:55:32,913 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1612 Valid, 2626 Invalid, 3561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3494 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-11 22:55:32,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4582 states. [2024-11-11 22:55:33,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4582 to 3365. [2024-11-11 22:55:33,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3365 states, 3106 states have (on average 1.5405666452028333) internal successors, (4785), 3116 states have internal predecessors, (4785), 196 states have call successors, (196), 55 states have call predecessors, (196), 62 states have return successors, (229), 201 states have call predecessors, (229), 194 states have call successors, (229) [2024-11-11 22:55:33,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3365 states to 3365 states and 5210 transitions. [2024-11-11 22:55:33,197 INFO L78 Accepts]: Start accepts. Automaton has 3365 states and 5210 transitions. Word has length 179 [2024-11-11 22:55:33,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:55:33,197 INFO L471 AbstractCegarLoop]: Abstraction has 3365 states and 5210 transitions. [2024-11-11 22:55:33,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:55:33,198 INFO L276 IsEmpty]: Start isEmpty. Operand 3365 states and 5210 transitions. [2024-11-11 22:55:33,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-11 22:55:33,201 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:55:33,201 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:55:33,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-11 22:55:33,201 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:55:33,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:55:33,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1667147663, now seen corresponding path program 1 times [2024-11-11 22:55:33,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:55:33,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085787293] [2024-11-11 22:55:33,202 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:33,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:55:33,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:33,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:55:33,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:33,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 22:55:33,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:33,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:55:33,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:33,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-11 22:55:33,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:33,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-11 22:55:33,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:33,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:55:33,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:55:33,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085787293] [2024-11-11 22:55:33,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085787293] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:55:33,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:55:33,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:55:33,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895975959] [2024-11-11 22:55:33,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:55:33,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:55:33,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:55:33,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:55:33,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:55:33,448 INFO L87 Difference]: Start difference. First operand 3365 states and 5210 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:55:34,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:55:34,993 INFO L93 Difference]: Finished difference Result 7946 states and 12496 transitions. [2024-11-11 22:55:34,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 22:55:34,994 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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 179 [2024-11-11 22:55:34,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:55:35,010 INFO L225 Difference]: With dead ends: 7946 [2024-11-11 22:55:35,010 INFO L226 Difference]: Without dead ends: 4602 [2024-11-11 22:55:35,018 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-11 22:55:35,019 INFO L435 NwaCegarLoop]: 318 mSDtfsCounter, 1323 mSDsluCounter, 792 mSDsCounter, 0 mSdLazyCounter, 1623 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1343 SdHoareTripleChecker+Valid, 1110 SdHoareTripleChecker+Invalid, 1720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 1623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:55:35,019 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1343 Valid, 1110 Invalid, 1720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 1623 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-11 22:55:35,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4602 states. [2024-11-11 22:55:35,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4602 to 3365. [2024-11-11 22:55:35,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3365 states, 3106 states have (on average 1.5376690276883451) internal successors, (4776), 3116 states have internal predecessors, (4776), 196 states have call successors, (196), 55 states have call predecessors, (196), 62 states have return successors, (229), 201 states have call predecessors, (229), 194 states have call successors, (229) [2024-11-11 22:55:35,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3365 states to 3365 states and 5201 transitions. [2024-11-11 22:55:35,279 INFO L78 Accepts]: Start accepts. Automaton has 3365 states and 5201 transitions. Word has length 179 [2024-11-11 22:55:35,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:55:35,279 INFO L471 AbstractCegarLoop]: Abstraction has 3365 states and 5201 transitions. [2024-11-11 22:55:35,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:55:35,280 INFO L276 IsEmpty]: Start isEmpty. Operand 3365 states and 5201 transitions. [2024-11-11 22:55:35,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-11 22:55:35,282 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:55:35,283 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:55:35,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-11 22:55:35,283 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:55:35,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:55:35,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1402500173, now seen corresponding path program 1 times [2024-11-11 22:55:35,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:55:35,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611017617] [2024-11-11 22:55:35,284 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:35,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:55:35,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:35,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:55:35,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:35,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 22:55:35,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:35,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:55:35,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:35,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-11 22:55:35,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:35,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-11 22:55:35,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:35,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:55:35,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:55:35,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611017617] [2024-11-11 22:55:35,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611017617] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:55:35,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:55:35,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:55:35,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696179289] [2024-11-11 22:55:35,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:55:35,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:55:35,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:55:35,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:55:35,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:55:35,580 INFO L87 Difference]: Start difference. First operand 3365 states and 5201 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:55:39,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:55:39,205 INFO L93 Difference]: Finished difference Result 11802 states and 18482 transitions. [2024-11-11 22:55:39,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:55:39,206 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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 179 [2024-11-11 22:55:39,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:55:39,233 INFO L225 Difference]: With dead ends: 11802 [2024-11-11 22:55:39,233 INFO L226 Difference]: Without dead ends: 8458 [2024-11-11 22:55:39,242 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:55:39,242 INFO L435 NwaCegarLoop]: 589 mSDtfsCounter, 1585 mSDsluCounter, 2037 mSDsCounter, 0 mSdLazyCounter, 3456 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1604 SdHoareTripleChecker+Valid, 2626 SdHoareTripleChecker+Invalid, 3523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-11 22:55:39,243 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1604 Valid, 2626 Invalid, 3523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3456 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-11 22:55:39,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8458 states. [2024-11-11 22:55:39,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8458 to 6335. [2024-11-11 22:55:39,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6335 states, 5852 states have (on average 1.533151059466849) internal successors, (8972), 5870 states have internal predecessors, (8972), 364 states have call successors, (364), 103 states have call predecessors, (364), 118 states have return successors, (459), 377 states have call predecessors, (459), 362 states have call successors, (459) [2024-11-11 22:55:39,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6335 states to 6335 states and 9795 transitions. [2024-11-11 22:55:39,726 INFO L78 Accepts]: Start accepts. Automaton has 6335 states and 9795 transitions. Word has length 179 [2024-11-11 22:55:39,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:55:39,726 INFO L471 AbstractCegarLoop]: Abstraction has 6335 states and 9795 transitions. [2024-11-11 22:55:39,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:55:39,727 INFO L276 IsEmpty]: Start isEmpty. Operand 6335 states and 9795 transitions. [2024-11-11 22:55:39,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-11 22:55:39,731 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:55:39,731 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:55:39,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-11 22:55:39,732 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:55:39,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:55:39,732 INFO L85 PathProgramCache]: Analyzing trace with hash -961341489, now seen corresponding path program 1 times [2024-11-11 22:55:39,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:55:39,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208652421] [2024-11-11 22:55:39,733 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:39,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:55:39,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:39,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:55:39,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:39,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 22:55:39,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:39,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:55:39,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:39,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-11 22:55:39,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:39,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-11 22:55:39,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:39,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:55:39,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:55:39,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208652421] [2024-11-11 22:55:39,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208652421] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:55:39,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:55:39,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:55:39,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312882993] [2024-11-11 22:55:39,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:55:39,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:55:39,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:55:39,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:55:39,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:55:39,986 INFO L87 Difference]: Start difference. First operand 6335 states and 9795 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:55:42,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:55:42,027 INFO L93 Difference]: Finished difference Result 14850 states and 23303 transitions. [2024-11-11 22:55:42,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 22:55:42,028 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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 179 [2024-11-11 22:55:42,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:55:42,056 INFO L225 Difference]: With dead ends: 14850 [2024-11-11 22:55:42,056 INFO L226 Difference]: Without dead ends: 8536 [2024-11-11 22:55:42,074 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-11 22:55:42,075 INFO L435 NwaCegarLoop]: 318 mSDtfsCounter, 1155 mSDsluCounter, 1004 mSDsCounter, 0 mSdLazyCounter, 1759 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1175 SdHoareTripleChecker+Valid, 1322 SdHoareTripleChecker+Invalid, 1828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-11 22:55:42,075 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1175 Valid, 1322 Invalid, 1828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1759 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-11 22:55:42,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8536 states. [2024-11-11 22:55:42,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8536 to 6335. [2024-11-11 22:55:42,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6335 states, 5852 states have (on average 1.530246069719754) internal successors, (8955), 5870 states have internal predecessors, (8955), 364 states have call successors, (364), 103 states have call predecessors, (364), 118 states have return successors, (459), 377 states have call predecessors, (459), 362 states have call successors, (459) [2024-11-11 22:55:42,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6335 states to 6335 states and 9778 transitions. [2024-11-11 22:55:42,645 INFO L78 Accepts]: Start accepts. Automaton has 6335 states and 9778 transitions. Word has length 179 [2024-11-11 22:55:42,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:55:42,645 INFO L471 AbstractCegarLoop]: Abstraction has 6335 states and 9778 transitions. [2024-11-11 22:55:42,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:55:42,646 INFO L276 IsEmpty]: Start isEmpty. Operand 6335 states and 9778 transitions. [2024-11-11 22:55:42,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-11 22:55:42,650 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:55:42,651 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:55:42,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-11 22:55:42,651 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:55:42,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:55:42,652 INFO L85 PathProgramCache]: Analyzing trace with hash 2010446861, now seen corresponding path program 1 times [2024-11-11 22:55:42,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:55:42,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426208849] [2024-11-11 22:55:42,652 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:42,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:55:42,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:42,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:55:42,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:42,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 22:55:42,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:42,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:55:42,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:42,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-11 22:55:42,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:42,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-11 22:55:42,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:42,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:55:42,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:55:42,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426208849] [2024-11-11 22:55:42,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426208849] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:55:42,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:55:42,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:55:42,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349266398] [2024-11-11 22:55:42,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:55:42,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:55:42,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:55:42,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:55:42,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:55:42,942 INFO L87 Difference]: Start difference. First operand 6335 states and 9778 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:55:44,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:55:44,884 INFO L93 Difference]: Finished difference Result 14832 states and 23216 transitions. [2024-11-11 22:55:44,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 22:55:44,885 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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 179 [2024-11-11 22:55:44,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:55:44,915 INFO L225 Difference]: With dead ends: 14832 [2024-11-11 22:55:44,915 INFO L226 Difference]: Without dead ends: 8518 [2024-11-11 22:55:44,933 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-11 22:55:44,934 INFO L435 NwaCegarLoop]: 318 mSDtfsCounter, 1153 mSDsluCounter, 1004 mSDsCounter, 0 mSdLazyCounter, 1743 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1173 SdHoareTripleChecker+Valid, 1322 SdHoareTripleChecker+Invalid, 1812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-11 22:55:44,934 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1173 Valid, 1322 Invalid, 1812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1743 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-11 22:55:44,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8518 states. [2024-11-11 22:55:45,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8518 to 6335. [2024-11-11 22:55:45,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6335 states, 5852 states have (on average 1.527341079972659) internal successors, (8938), 5870 states have internal predecessors, (8938), 364 states have call successors, (364), 103 states have call predecessors, (364), 118 states have return successors, (459), 377 states have call predecessors, (459), 362 states have call successors, (459) [2024-11-11 22:55:45,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6335 states to 6335 states and 9761 transitions. [2024-11-11 22:55:45,436 INFO L78 Accepts]: Start accepts. Automaton has 6335 states and 9761 transitions. Word has length 179 [2024-11-11 22:55:45,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:55:45,437 INFO L471 AbstractCegarLoop]: Abstraction has 6335 states and 9761 transitions. [2024-11-11 22:55:45,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:55:45,437 INFO L276 IsEmpty]: Start isEmpty. Operand 6335 states and 9761 transitions. [2024-11-11 22:55:45,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-11 22:55:45,442 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:55:45,442 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:55:45,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-11 22:55:45,442 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:55:45,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:55:45,443 INFO L85 PathProgramCache]: Analyzing trace with hash -387540977, now seen corresponding path program 1 times [2024-11-11 22:55:45,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:55:45,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403518533] [2024-11-11 22:55:45,443 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:45,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:55:45,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:45,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:55:45,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:45,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 22:55:45,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:45,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:55:45,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:45,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-11 22:55:45,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:45,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-11 22:55:45,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:45,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:55:45,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:55:45,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403518533] [2024-11-11 22:55:45,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403518533] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:55:45,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:55:45,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:55:45,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275736049] [2024-11-11 22:55:45,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:55:45,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:55:45,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:55:45,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:55:45,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:55:45,745 INFO L87 Difference]: Start difference. First operand 6335 states and 9761 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:55:49,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:55:49,946 INFO L93 Difference]: Finished difference Result 22494 states and 35058 transitions. [2024-11-11 22:55:49,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:55:49,947 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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 179 [2024-11-11 22:55:49,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:55:50,003 INFO L225 Difference]: With dead ends: 22494 [2024-11-11 22:55:50,003 INFO L226 Difference]: Without dead ends: 16180 [2024-11-11 22:55:50,021 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:55:50,022 INFO L435 NwaCegarLoop]: 589 mSDtfsCounter, 1576 mSDsluCounter, 2037 mSDsCounter, 0 mSdLazyCounter, 3388 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1595 SdHoareTripleChecker+Valid, 2626 SdHoareTripleChecker+Invalid, 3455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-11 22:55:50,022 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1595 Valid, 2626 Invalid, 3455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3388 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-11 22:55:50,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16180 states. [2024-11-11 22:55:50,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16180 to 12322. [2024-11-11 22:55:50,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12322 states, 11391 states have (on average 1.523307874637872) internal successors, (17352), 11425 states have internal predecessors, (17352), 700 states have call successors, (700), 199 states have call predecessors, (700), 230 states have return successors, (973), 729 states have call predecessors, (973), 698 states have call successors, (973) [2024-11-11 22:55:50,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12322 states to 12322 states and 19025 transitions. [2024-11-11 22:55:50,919 INFO L78 Accepts]: Start accepts. Automaton has 12322 states and 19025 transitions. Word has length 179 [2024-11-11 22:55:50,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:55:50,919 INFO L471 AbstractCegarLoop]: Abstraction has 12322 states and 19025 transitions. [2024-11-11 22:55:50,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:55:50,920 INFO L276 IsEmpty]: Start isEmpty. Operand 12322 states and 19025 transitions. [2024-11-11 22:55:50,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-11 22:55:50,927 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:55:50,927 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:55:50,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-11 22:55:50,928 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:55:50,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:55:50,928 INFO L85 PathProgramCache]: Analyzing trace with hash -49253427, now seen corresponding path program 1 times [2024-11-11 22:55:50,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:55:50,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389086253] [2024-11-11 22:55:50,929 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:50,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:55:50,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:51,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:55:51,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:51,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 22:55:51,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:51,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:55:51,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:51,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-11 22:55:51,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:51,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-11 22:55:51,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:51,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:55:51,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:55:51,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389086253] [2024-11-11 22:55:51,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389086253] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:55:51,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:55:51,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:55:51,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543711461] [2024-11-11 22:55:51,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:55:51,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:55:51,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:55:51,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:55:51,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:55:51,172 INFO L87 Difference]: Start difference. First operand 12322 states and 19025 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:55:56,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:55:56,882 INFO L93 Difference]: Finished difference Result 49197 states and 76786 transitions. [2024-11-11 22:55:56,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 22:55:56,883 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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 179 [2024-11-11 22:55:56,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:55:57,029 INFO L225 Difference]: With dead ends: 49197 [2024-11-11 22:55:57,029 INFO L226 Difference]: Without dead ends: 36896 [2024-11-11 22:55:57,075 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-11 22:55:57,077 INFO L435 NwaCegarLoop]: 381 mSDtfsCounter, 1776 mSDsluCounter, 1359 mSDsCounter, 0 mSdLazyCounter, 3766 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1794 SdHoareTripleChecker+Valid, 1740 SdHoareTripleChecker+Invalid, 3869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 3766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-11 22:55:57,077 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1794 Valid, 1740 Invalid, 3869 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [103 Valid, 3766 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-11 22:55:57,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36896 states. [2024-11-11 22:55:59,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36896 to 24004. [2024-11-11 22:55:59,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24004 states, 22209 states have (on average 1.5206447836462695) internal successors, (33772), 22275 states have internal predecessors, (33772), 1340 states have call successors, (1340), 391 states have call predecessors, (1340), 454 states have return successors, (2131), 1401 states have call predecessors, (2131), 1338 states have call successors, (2131) [2024-11-11 22:55:59,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24004 states to 24004 states and 37243 transitions. [2024-11-11 22:55:59,356 INFO L78 Accepts]: Start accepts. Automaton has 24004 states and 37243 transitions. Word has length 179 [2024-11-11 22:55:59,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:55:59,356 INFO L471 AbstractCegarLoop]: Abstraction has 24004 states and 37243 transitions. [2024-11-11 22:55:59,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:55:59,357 INFO L276 IsEmpty]: Start isEmpty. Operand 24004 states and 37243 transitions. [2024-11-11 22:55:59,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-11 22:55:59,371 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:55:59,371 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:55:59,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-11 22:55:59,372 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:55:59,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:55:59,372 INFO L85 PathProgramCache]: Analyzing trace with hash -589682933, now seen corresponding path program 1 times [2024-11-11 22:55:59,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:55:59,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588227445] [2024-11-11 22:55:59,373 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:59,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:55:59,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:59,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:55:59,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:59,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 22:55:59,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:59,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:55:59,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:59,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-11 22:55:59,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:59,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-11 22:55:59,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:59,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:55:59,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:55:59,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588227445] [2024-11-11 22:55:59,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588227445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:55:59,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:55:59,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:55:59,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558535883] [2024-11-11 22:55:59,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:55:59,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:55:59,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:55:59,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:55:59,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:55:59,642 INFO L87 Difference]: Start difference. First operand 24004 states and 37243 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:56:07,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:07,517 INFO L93 Difference]: Finished difference Result 95501 states and 149738 transitions. [2024-11-11 22:56:07,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 22:56:07,517 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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 179 [2024-11-11 22:56:07,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:07,832 INFO L225 Difference]: With dead ends: 95501 [2024-11-11 22:56:07,832 INFO L226 Difference]: Without dead ends: 71518 [2024-11-11 22:56:07,910 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-11 22:56:07,911 INFO L435 NwaCegarLoop]: 587 mSDtfsCounter, 1978 mSDsluCounter, 2029 mSDsCounter, 0 mSdLazyCounter, 3341 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2010 SdHoareTripleChecker+Valid, 2616 SdHoareTripleChecker+Invalid, 3411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 3341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:07,912 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2010 Valid, 2616 Invalid, 3411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 3341 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-11 22:56:07,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71518 states.