./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.08.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.08.cil-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7889f6823684efa4d90d392ed393927ee5c2d2eb45f6dbf47b7c030213ef334f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 03:02:29,790 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 03:02:29,872 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 03:02:29,881 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 03:02:29,881 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 03:02:29,912 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 03:02:29,912 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 03:02:29,913 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 03:02:29,914 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 03:02:29,914 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 03:02:29,915 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 03:02:29,915 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 03:02:29,915 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 03:02:29,916 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 03:02:29,916 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 03:02:29,917 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 03:02:29,918 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 03:02:29,918 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 03:02:29,918 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 03:02:29,919 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 03:02:29,919 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 03:02:29,919 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 03:02:29,920 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 03:02:29,920 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 03:02:29,920 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 03:02:29,921 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 03:02:29,921 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 03:02:29,921 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 03:02:29,922 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 03:02:29,922 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 03:02:29,922 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 03:02:29,923 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 03:02:29,923 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 03:02:29,923 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 03:02:29,924 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 03:02:29,924 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 03:02:29,924 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 03:02:29,925 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 03:02:29,925 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 03:02:29,925 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 03:02:29,926 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 03:02:29,927 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 03:02:29,927 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7889f6823684efa4d90d392ed393927ee5c2d2eb45f6dbf47b7c030213ef334f [2024-10-24 03:02:30,195 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 03:02:30,221 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 03:02:30,223 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 03:02:30,225 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 03:02:30,225 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 03:02:30,227 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.08.cil-1.c [2024-10-24 03:02:31,645 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 03:02:31,884 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 03:02:31,888 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.08.cil-1.c [2024-10-24 03:02:31,915 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e5494486/1df8940fdd9e474a86b88756c9e24fe4/FLAG0384f02a6 [2024-10-24 03:02:32,227 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e5494486/1df8940fdd9e474a86b88756c9e24fe4 [2024-10-24 03:02:32,229 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 03:02:32,230 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 03:02:32,231 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 03:02:32,231 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 03:02:32,236 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 03:02:32,237 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:02:32" (1/1) ... [2024-10-24 03:02:32,238 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f98cf5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:02:32, skipping insertion in model container [2024-10-24 03:02:32,238 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:02:32" (1/1) ... [2024-10-24 03:02:32,290 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 03:02:32,480 WARN L248 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_2.cil-1+token_ring.08.cil-1.c[914,927] [2024-10-24 03:02:32,545 WARN L248 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_2.cil-1+token_ring.08.cil-1.c[7115,7128] [2024-10-24 03:02:32,626 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 03:02:32,642 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 03:02:32,655 WARN L248 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_2.cil-1+token_ring.08.cil-1.c[914,927] [2024-10-24 03:02:32,678 WARN L248 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_2.cil-1+token_ring.08.cil-1.c[7115,7128] [2024-10-24 03:02:32,736 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 03:02:32,764 INFO L204 MainTranslator]: Completed translation [2024-10-24 03:02:32,765 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:02:32 WrapperNode [2024-10-24 03:02:32,765 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 03:02:32,766 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 03:02:32,766 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 03:02:32,766 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 03:02:32,775 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:02:32" (1/1) ... [2024-10-24 03:02:32,791 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:02:32" (1/1) ... [2024-10-24 03:02:32,832 INFO L138 Inliner]: procedures = 69, calls = 81, calls flagged for inlining = 38, calls inlined = 38, statements flattened = 828 [2024-10-24 03:02:32,833 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 03:02:32,833 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 03:02:32,834 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 03:02:32,834 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 03:02:32,845 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:02:32" (1/1) ... [2024-10-24 03:02:32,846 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:02:32" (1/1) ... [2024-10-24 03:02:32,850 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:02:32" (1/1) ... [2024-10-24 03:02:32,874 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]. [2024-10-24 03:02:32,874 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:02:32" (1/1) ... [2024-10-24 03:02:32,874 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:02:32" (1/1) ... [2024-10-24 03:02:32,915 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:02:32" (1/1) ... [2024-10-24 03:02:32,930 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:02:32" (1/1) ... [2024-10-24 03:02:32,933 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:02:32" (1/1) ... [2024-10-24 03:02:32,935 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:02:32" (1/1) ... [2024-10-24 03:02:32,940 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 03:02:32,941 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 03:02:32,941 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 03:02:32,941 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 03:02:32,942 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:02:32" (1/1) ... [2024-10-24 03:02:32,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 03:02:32,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 03:02:33,011 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) [2024-10-24 03:02:33,014 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 [2024-10-24 03:02:33,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 03:02:33,062 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-10-24 03:02:33,062 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-10-24 03:02:33,062 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2024-10-24 03:02:33,064 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2024-10-24 03:02:33,064 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-10-24 03:02:33,064 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-10-24 03:02:33,064 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-10-24 03:02:33,065 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-10-24 03:02:33,065 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2024-10-24 03:02:33,065 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2024-10-24 03:02:33,065 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-10-24 03:02:33,065 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-10-24 03:02:33,066 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-10-24 03:02:33,066 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-10-24 03:02:33,066 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2024-10-24 03:02:33,066 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2024-10-24 03:02:33,066 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2024-10-24 03:02:33,067 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2024-10-24 03:02:33,067 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2024-10-24 03:02:33,067 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2024-10-24 03:02:33,067 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-10-24 03:02:33,068 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-10-24 03:02:33,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 03:02:33,068 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-10-24 03:02:33,068 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-10-24 03:02:33,068 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2024-10-24 03:02:33,068 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2024-10-24 03:02:33,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 03:02:33,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 03:02:33,070 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-10-24 03:02:33,070 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-10-24 03:02:33,215 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 03:02:33,218 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 03:02:34,086 INFO L? ?]: Removed 103 outVars from TransFormulas that were not future-live. [2024-10-24 03:02:34,087 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 03:02:34,168 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 03:02:34,168 INFO L314 CfgBuilder]: Removed 15 assume(true) statements. [2024-10-24 03:02:34,168 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:02:34 BoogieIcfgContainer [2024-10-24 03:02:34,169 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 03:02:34,175 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 03:02:34,175 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 03:02:34,178 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 03:02:34,178 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:02:32" (1/3) ... [2024-10-24 03:02:34,179 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47b9354f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:02:34, skipping insertion in model container [2024-10-24 03:02:34,179 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:02:32" (2/3) ... [2024-10-24 03:02:34,181 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47b9354f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:02:34, skipping insertion in model container [2024-10-24 03:02:34,181 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:02:34" (3/3) ... [2024-10-24 03:02:34,183 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_2.cil-1+token_ring.08.cil-1.c [2024-10-24 03:02:34,198 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 03:02:34,198 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-24 03:02:34,274 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 03:02:34,280 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;@43c4cb1d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 03:02:34,280 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-24 03:02:34,287 INFO L276 IsEmpty]: Start isEmpty. Operand has 347 states, 294 states have (on average 1.6972789115646258) internal successors, (499), 300 states have internal predecessors, (499), 36 states have call successors, (36), 14 states have call predecessors, (36), 14 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-10-24 03:02:34,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-24 03:02:34,299 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:02:34,300 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:02:34,301 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:02:34,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:02:34,306 INFO L85 PathProgramCache]: Analyzing trace with hash 77441873, now seen corresponding path program 1 times [2024-10-24 03:02:34,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:02:34,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377457653] [2024-10-24 03:02:34,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:02:34,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:02:34,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:34,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:02:34,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:34,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 03:02:34,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:34,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 03:02:34,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:34,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 03:02:34,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:34,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 03:02:34,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:34,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 03:02:34,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:34,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 03:02:34,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:34,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:02:34,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:02:34,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377457653] [2024-10-24 03:02:34,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377457653] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:02:34,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:02:34,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 03:02:34,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613824716] [2024-10-24 03:02:34,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:02:34,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 03:02:34,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:02:34,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 03:02:34,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-24 03:02:34,988 INFO L87 Difference]: Start difference. First operand has 347 states, 294 states have (on average 1.6972789115646258) internal successors, (499), 300 states have internal predecessors, (499), 36 states have call successors, (36), 14 states have call predecessors, (36), 14 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-10-24 03:02:36,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:02:36,406 INFO L93 Difference]: Finished difference Result 798 states and 1301 transitions. [2024-10-24 03:02:36,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 03:02:36,409 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 58 [2024-10-24 03:02:36,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:02:36,429 INFO L225 Difference]: With dead ends: 798 [2024-10-24 03:02:36,429 INFO L226 Difference]: Without dead ends: 467 [2024-10-24 03:02:36,435 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2024-10-24 03:02:36,441 INFO L432 NwaCegarLoop]: 281 mSDtfsCounter, 1158 mSDsluCounter, 875 mSDsCounter, 0 mSdLazyCounter, 1152 mSolverCounterSat, 212 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1163 SdHoareTripleChecker+Valid, 1156 SdHoareTripleChecker+Invalid, 1364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 212 IncrementalHoareTripleChecker+Valid, 1152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-24 03:02:36,444 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1163 Valid, 1156 Invalid, 1364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [212 Valid, 1152 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-24 03:02:36,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2024-10-24 03:02:36,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 430. [2024-10-24 03:02:36,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 359 states have (on average 1.5571030640668524) internal successors, (559), 365 states have internal predecessors, (559), 47 states have call successors, (47), 21 states have call predecessors, (47), 22 states have return successors, (50), 46 states have call predecessors, (50), 45 states have call successors, (50) [2024-10-24 03:02:36,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 656 transitions. [2024-10-24 03:02:36,543 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 656 transitions. Word has length 58 [2024-10-24 03:02:36,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:02:36,544 INFO L471 AbstractCegarLoop]: Abstraction has 430 states and 656 transitions. [2024-10-24 03:02:36,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-10-24 03:02:36,544 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 656 transitions. [2024-10-24 03:02:36,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-24 03:02:36,547 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:02:36,548 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:02:36,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 03:02:36,548 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:02:36,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:02:36,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1013720174, now seen corresponding path program 1 times [2024-10-24 03:02:36,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:02:36,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699980168] [2024-10-24 03:02:36,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:02:36,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:02:36,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:36,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:02:36,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:36,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 03:02:36,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:36,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 03:02:36,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:36,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 03:02:36,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:36,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 03:02:36,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:36,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 03:02:36,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:36,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 03:02:36,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:36,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:02:36,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:02:36,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699980168] [2024-10-24 03:02:36,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699980168] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:02:36,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:02:36,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 03:02:36,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904533706] [2024-10-24 03:02:36,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:02:36,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 03:02:36,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:02:36,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 03:02:36,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-24 03:02:36,787 INFO L87 Difference]: Start difference. First operand 430 states and 656 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-10-24 03:02:38,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:02:38,031 INFO L93 Difference]: Finished difference Result 750 states and 1106 transitions. [2024-10-24 03:02:38,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-24 03:02:38,032 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 58 [2024-10-24 03:02:38,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:02:38,039 INFO L225 Difference]: With dead ends: 750 [2024-10-24 03:02:38,042 INFO L226 Difference]: Without dead ends: 588 [2024-10-24 03:02:38,043 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-10-24 03:02:38,045 INFO L432 NwaCegarLoop]: 308 mSDtfsCounter, 1325 mSDsluCounter, 1041 mSDsCounter, 0 mSdLazyCounter, 1382 mSolverCounterSat, 167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1353 SdHoareTripleChecker+Valid, 1349 SdHoareTripleChecker+Invalid, 1549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 167 IncrementalHoareTripleChecker+Valid, 1382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 03:02:38,045 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1353 Valid, 1349 Invalid, 1549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [167 Valid, 1382 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 03:02:38,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2024-10-24 03:02:38,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 518. [2024-10-24 03:02:38,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 427 states have (on average 1.5339578454332552) internal successors, (655), 435 states have internal predecessors, (655), 58 states have call successors, (58), 28 states have call predecessors, (58), 31 states have return successors, (69), 58 states have call predecessors, (69), 56 states have call successors, (69) [2024-10-24 03:02:38,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 782 transitions. [2024-10-24 03:02:38,121 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 782 transitions. Word has length 58 [2024-10-24 03:02:38,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:02:38,121 INFO L471 AbstractCegarLoop]: Abstraction has 518 states and 782 transitions. [2024-10-24 03:02:38,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-10-24 03:02:38,122 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 782 transitions. [2024-10-24 03:02:38,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-24 03:02:38,124 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:02:38,124 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:02:38,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 03:02:38,125 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:02:38,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:02:38,126 INFO L85 PathProgramCache]: Analyzing trace with hash 914552528, now seen corresponding path program 1 times [2024-10-24 03:02:38,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:02:38,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406765323] [2024-10-24 03:02:38,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:02:38,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:02:38,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:38,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:02:38,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:38,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 03:02:38,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:38,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 03:02:38,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:38,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 03:02:38,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:38,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 03:02:38,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:38,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 03:02:38,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:38,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 03:02:38,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:38,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:02:38,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:02:38,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406765323] [2024-10-24 03:02:38,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406765323] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:02:38,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:02:38,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 03:02:38,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125416626] [2024-10-24 03:02:38,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:02:38,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 03:02:38,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:02:38,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 03:02:38,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-24 03:02:38,340 INFO L87 Difference]: Start difference. First operand 518 states and 782 transitions. Second operand has 9 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-24 03:02:39,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:02:39,460 INFO L93 Difference]: Finished difference Result 792 states and 1168 transitions. [2024-10-24 03:02:39,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 03:02:39,462 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 58 [2024-10-24 03:02:39,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:02:39,466 INFO L225 Difference]: With dead ends: 792 [2024-10-24 03:02:39,466 INFO L226 Difference]: Without dead ends: 548 [2024-10-24 03:02:39,467 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-10-24 03:02:39,468 INFO L432 NwaCegarLoop]: 280 mSDtfsCounter, 458 mSDsluCounter, 1595 mSDsCounter, 0 mSdLazyCounter, 1696 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 459 SdHoareTripleChecker+Valid, 1875 SdHoareTripleChecker+Invalid, 1775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 1696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 03:02:39,469 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [459 Valid, 1875 Invalid, 1775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 1696 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 03:02:39,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2024-10-24 03:02:39,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 522. [2024-10-24 03:02:39,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 430 states have (on average 1.5255813953488373) internal successors, (656), 438 states have internal predecessors, (656), 58 states have call successors, (58), 28 states have call predecessors, (58), 32 states have return successors, (70), 59 states have call predecessors, (70), 56 states have call successors, (70) [2024-10-24 03:02:39,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 784 transitions. [2024-10-24 03:02:39,528 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 784 transitions. Word has length 58 [2024-10-24 03:02:39,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:02:39,529 INFO L471 AbstractCegarLoop]: Abstraction has 522 states and 784 transitions. [2024-10-24 03:02:39,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-24 03:02:39,529 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 784 transitions. [2024-10-24 03:02:39,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-24 03:02:39,535 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:02:39,535 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:02:39,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 03:02:39,535 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:02:39,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:02:39,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1329430770, now seen corresponding path program 1 times [2024-10-24 03:02:39,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:02:39,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067584727] [2024-10-24 03:02:39,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:02:39,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:02:39,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:39,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:02:39,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:39,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 03:02:39,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:39,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 03:02:39,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:39,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 03:02:39,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:39,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 03:02:39,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:39,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 03:02:39,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:39,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 03:02:39,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:39,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:02:39,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:02:39,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067584727] [2024-10-24 03:02:39,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067584727] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:02:39,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:02:39,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 03:02:39,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372110370] [2024-10-24 03:02:39,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:02:39,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 03:02:39,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:02:39,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 03:02:39,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-10-24 03:02:39,792 INFO L87 Difference]: Start difference. First operand 522 states and 784 transitions. Second operand has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 7 states have internal predecessors, (43), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-10-24 03:02:41,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:02:41,635 INFO L93 Difference]: Finished difference Result 1746 states and 2482 transitions. [2024-10-24 03:02:41,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-10-24 03:02:41,636 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 7 states have internal predecessors, (43), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 58 [2024-10-24 03:02:41,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:02:41,643 INFO L225 Difference]: With dead ends: 1746 [2024-10-24 03:02:41,644 INFO L226 Difference]: Without dead ends: 1480 [2024-10-24 03:02:41,646 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=257, Invalid=1075, Unknown=0, NotChecked=0, Total=1332 [2024-10-24 03:02:41,647 INFO L432 NwaCegarLoop]: 315 mSDtfsCounter, 2765 mSDsluCounter, 1512 mSDsCounter, 0 mSdLazyCounter, 1753 mSolverCounterSat, 516 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2779 SdHoareTripleChecker+Valid, 1827 SdHoareTripleChecker+Invalid, 2269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 516 IncrementalHoareTripleChecker+Valid, 1753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-24 03:02:41,647 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2779 Valid, 1827 Invalid, 2269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [516 Valid, 1753 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-24 03:02:41,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1480 states. [2024-10-24 03:02:41,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1480 to 1357. [2024-10-24 03:02:41,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1357 states, 1079 states have (on average 1.4170528266913809) internal successors, (1529), 1102 states have internal predecessors, (1529), 146 states have call successors, (146), 111 states have call predecessors, (146), 130 states have return successors, (184), 146 states have call predecessors, (184), 144 states have call successors, (184) [2024-10-24 03:02:41,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1357 states to 1357 states and 1859 transitions. [2024-10-24 03:02:41,777 INFO L78 Accepts]: Start accepts. Automaton has 1357 states and 1859 transitions. Word has length 58 [2024-10-24 03:02:41,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:02:41,777 INFO L471 AbstractCegarLoop]: Abstraction has 1357 states and 1859 transitions. [2024-10-24 03:02:41,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 7 states have internal predecessors, (43), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-10-24 03:02:41,777 INFO L276 IsEmpty]: Start isEmpty. Operand 1357 states and 1859 transitions. [2024-10-24 03:02:41,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-24 03:02:41,782 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:02:41,782 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:02:41,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 03:02:41,783 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:02:41,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:02:41,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1941646022, now seen corresponding path program 1 times [2024-10-24 03:02:41,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:02:41,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533815322] [2024-10-24 03:02:41,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:02:41,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:02:41,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:41,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:02:41,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:41,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 03:02:41,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:41,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 03:02:41,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:41,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 03:02:41,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:41,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 03:02:41,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:41,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 03:02:41,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:41,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 03:02:41,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:41,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:02:41,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:02:41,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533815322] [2024-10-24 03:02:41,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533815322] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:02:41,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:02:41,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 03:02:41,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877952805] [2024-10-24 03:02:41,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:02:41,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 03:02:41,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:02:41,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 03:02:41,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-24 03:02:41,939 INFO L87 Difference]: Start difference. First operand 1357 states and 1859 transitions. Second operand has 9 states, 8 states have (on average 5.5) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-24 03:02:43,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:02:43,101 INFO L93 Difference]: Finished difference Result 2546 states and 3430 transitions. [2024-10-24 03:02:43,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 03:02:43,102 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 59 [2024-10-24 03:02:43,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:02:43,111 INFO L225 Difference]: With dead ends: 2546 [2024-10-24 03:02:43,111 INFO L226 Difference]: Without dead ends: 1451 [2024-10-24 03:02:43,114 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2024-10-24 03:02:43,116 INFO L432 NwaCegarLoop]: 277 mSDtfsCounter, 462 mSDsluCounter, 1595 mSDsCounter, 0 mSdLazyCounter, 1663 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 464 SdHoareTripleChecker+Valid, 1872 SdHoareTripleChecker+Invalid, 1742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 1663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 03:02:43,116 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [464 Valid, 1872 Invalid, 1742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 1663 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 03:02:43,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1451 states. [2024-10-24 03:02:43,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1451 to 1381. [2024-10-24 03:02:43,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1381 states, 1097 states have (on average 1.4029170464904284) internal successors, (1539), 1120 states have internal predecessors, (1539), 146 states have call successors, (146), 111 states have call predecessors, (146), 136 states have return successors, (190), 152 states have call predecessors, (190), 144 states have call successors, (190) [2024-10-24 03:02:43,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1381 states to 1381 states and 1875 transitions. [2024-10-24 03:02:43,222 INFO L78 Accepts]: Start accepts. Automaton has 1381 states and 1875 transitions. Word has length 59 [2024-10-24 03:02:43,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:02:43,223 INFO L471 AbstractCegarLoop]: Abstraction has 1381 states and 1875 transitions. [2024-10-24 03:02:43,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-24 03:02:43,223 INFO L276 IsEmpty]: Start isEmpty. Operand 1381 states and 1875 transitions. [2024-10-24 03:02:43,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-24 03:02:43,224 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:02:43,225 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:02:43,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 03:02:43,225 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:02:43,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:02:43,225 INFO L85 PathProgramCache]: Analyzing trace with hash -430093240, now seen corresponding path program 1 times [2024-10-24 03:02:43,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:02:43,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14561625] [2024-10-24 03:02:43,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:02:43,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:02:43,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:43,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:02:43,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:43,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 03:02:43,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:43,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 03:02:43,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:43,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 03:02:43,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:43,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 03:02:43,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:43,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 03:02:43,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:43,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 03:02:43,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:43,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:02:43,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:02:43,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14561625] [2024-10-24 03:02:43,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14561625] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:02:43,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:02:43,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 03:02:43,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022799989] [2024-10-24 03:02:43,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:02:43,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 03:02:43,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:02:43,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 03:02:43,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-24 03:02:43,427 INFO L87 Difference]: Start difference. First operand 1381 states and 1875 transitions. Second operand has 8 states, 8 states have (on average 5.5) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-10-24 03:02:44,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:02:44,635 INFO L93 Difference]: Finished difference Result 2531 states and 3317 transitions. [2024-10-24 03:02:44,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-24 03:02:44,635 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 59 [2024-10-24 03:02:44,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:02:44,645 INFO L225 Difference]: With dead ends: 2531 [2024-10-24 03:02:44,645 INFO L226 Difference]: Without dead ends: 1619 [2024-10-24 03:02:44,648 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2024-10-24 03:02:44,651 INFO L432 NwaCegarLoop]: 253 mSDtfsCounter, 1044 mSDsluCounter, 1109 mSDsCounter, 0 mSdLazyCounter, 1378 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1069 SdHoareTripleChecker+Valid, 1362 SdHoareTripleChecker+Invalid, 1503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 1378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 03:02:44,652 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1069 Valid, 1362 Invalid, 1503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 1378 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 03:02:44,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1619 states. [2024-10-24 03:02:44,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1619 to 1326. [2024-10-24 03:02:44,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1326 states, 1058 states have (on average 1.3998109640831757) internal successors, (1481), 1076 states have internal predecessors, (1481), 140 states have call successors, (140), 106 states have call predecessors, (140), 126 states have return successors, (175), 145 states have call predecessors, (175), 138 states have call successors, (175) [2024-10-24 03:02:44,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1326 states to 1326 states and 1796 transitions. [2024-10-24 03:02:44,765 INFO L78 Accepts]: Start accepts. Automaton has 1326 states and 1796 transitions. Word has length 59 [2024-10-24 03:02:44,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:02:44,766 INFO L471 AbstractCegarLoop]: Abstraction has 1326 states and 1796 transitions. [2024-10-24 03:02:44,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-10-24 03:02:44,766 INFO L276 IsEmpty]: Start isEmpty. Operand 1326 states and 1796 transitions. [2024-10-24 03:02:44,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-24 03:02:44,769 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:02:44,769 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:02:44,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 03:02:44,771 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:02:44,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:02:44,771 INFO L85 PathProgramCache]: Analyzing trace with hash -211238522, now seen corresponding path program 1 times [2024-10-24 03:02:44,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:02:44,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565506382] [2024-10-24 03:02:44,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:02:44,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:02:44,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:44,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:02:44,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:44,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 03:02:44,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:44,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 03:02:44,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:44,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 03:02:44,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:44,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 03:02:44,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:44,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 03:02:44,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:44,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 03:02:44,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:44,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:02:44,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:02:44,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565506382] [2024-10-24 03:02:44,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565506382] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:02:44,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:02:44,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:02:44,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954502144] [2024-10-24 03:02:44,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:02:44,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:02:44,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:02:44,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:02:44,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:02:44,898 INFO L87 Difference]: Start difference. First operand 1326 states and 1796 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-10-24 03:02:45,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:02:45,759 INFO L93 Difference]: Finished difference Result 3475 states and 4567 transitions. [2024-10-24 03:02:45,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 03:02:45,760 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 59 [2024-10-24 03:02:45,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:02:45,773 INFO L225 Difference]: With dead ends: 3475 [2024-10-24 03:02:45,773 INFO L226 Difference]: Without dead ends: 2412 [2024-10-24 03:02:45,776 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2024-10-24 03:02:45,779 INFO L432 NwaCegarLoop]: 249 mSDtfsCounter, 1021 mSDsluCounter, 883 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1050 SdHoareTripleChecker+Valid, 1132 SdHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 03:02:45,779 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1050 Valid, 1132 Invalid, 799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 674 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 03:02:45,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2412 states. [2024-10-24 03:02:45,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2412 to 2296. [2024-10-24 03:02:45,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2296 states, 1785 states have (on average 1.3333333333333333) internal successors, (2380), 1820 states have internal predecessors, (2380), 259 states have call successors, (259), 205 states have call predecessors, (259), 250 states have return successors, (366), 273 states have call predecessors, (366), 257 states have call successors, (366) [2024-10-24 03:02:45,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2296 states to 2296 states and 3005 transitions. [2024-10-24 03:02:45,989 INFO L78 Accepts]: Start accepts. Automaton has 2296 states and 3005 transitions. Word has length 59 [2024-10-24 03:02:45,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:02:45,990 INFO L471 AbstractCegarLoop]: Abstraction has 2296 states and 3005 transitions. [2024-10-24 03:02:45,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-10-24 03:02:45,990 INFO L276 IsEmpty]: Start isEmpty. Operand 2296 states and 3005 transitions. [2024-10-24 03:02:45,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-10-24 03:02:45,991 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:02:45,991 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:02:45,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 03:02:45,992 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:02:45,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:02:45,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1570609934, now seen corresponding path program 1 times [2024-10-24 03:02:45,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:02:45,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804661744] [2024-10-24 03:02:45,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:02:45,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:02:46,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:46,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:02:46,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:46,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 03:02:46,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:46,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 03:02:46,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:46,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 03:02:46,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:46,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 03:02:46,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:46,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 03:02:46,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:46,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 03:02:46,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:46,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:02:46,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:02:46,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804661744] [2024-10-24 03:02:46,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804661744] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:02:46,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:02:46,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 03:02:46,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687228637] [2024-10-24 03:02:46,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:02:46,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 03:02:46,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:02:46,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 03:02:46,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:02:46,093 INFO L87 Difference]: Start difference. First operand 2296 states and 3005 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-24 03:02:46,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:02:46,828 INFO L93 Difference]: Finished difference Result 5348 states and 6886 transitions. [2024-10-24 03:02:46,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 03:02:46,829 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 60 [2024-10-24 03:02:46,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:02:46,848 INFO L225 Difference]: With dead ends: 5348 [2024-10-24 03:02:46,848 INFO L226 Difference]: Without dead ends: 3320 [2024-10-24 03:02:46,853 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-10-24 03:02:46,855 INFO L432 NwaCegarLoop]: 277 mSDtfsCounter, 896 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 710 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 904 SdHoareTripleChecker+Valid, 911 SdHoareTripleChecker+Invalid, 873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 03:02:46,855 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [904 Valid, 911 Invalid, 873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 710 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 03:02:46,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3320 states. [2024-10-24 03:02:47,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3320 to 3062. [2024-10-24 03:02:47,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3062 states, 2365 states have (on average 1.3137420718816069) internal successors, (3107), 2405 states have internal predecessors, (3107), 351 states have call successors, (351), 285 states have call predecessors, (351), 344 states have return successors, (480), 374 states have call predecessors, (480), 349 states have call successors, (480) [2024-10-24 03:02:47,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3062 states to 3062 states and 3938 transitions. [2024-10-24 03:02:47,204 INFO L78 Accepts]: Start accepts. Automaton has 3062 states and 3938 transitions. Word has length 60 [2024-10-24 03:02:47,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:02:47,204 INFO L471 AbstractCegarLoop]: Abstraction has 3062 states and 3938 transitions. [2024-10-24 03:02:47,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-24 03:02:47,205 INFO L276 IsEmpty]: Start isEmpty. Operand 3062 states and 3938 transitions. [2024-10-24 03:02:47,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-24 03:02:47,206 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:02:47,206 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:02:47,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 03:02:47,206 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:02:47,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:02:47,207 INFO L85 PathProgramCache]: Analyzing trace with hash 2127657009, now seen corresponding path program 1 times [2024-10-24 03:02:47,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:02:47,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059789006] [2024-10-24 03:02:47,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:02:47,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:02:47,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:47,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:02:47,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:47,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 03:02:47,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:47,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 03:02:47,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:47,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 03:02:47,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:47,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 03:02:47,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:47,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 03:02:47,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:47,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 03:02:47,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:47,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:02:47,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:02:47,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059789006] [2024-10-24 03:02:47,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059789006] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:02:47,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:02:47,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 03:02:47,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634402542] [2024-10-24 03:02:47,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:02:47,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 03:02:47,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:02:47,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 03:02:47,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:02:47,287 INFO L87 Difference]: Start difference. First operand 3062 states and 3938 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-24 03:02:48,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:02:48,215 INFO L93 Difference]: Finished difference Result 6626 states and 8404 transitions. [2024-10-24 03:02:48,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 03:02:48,216 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 66 [2024-10-24 03:02:48,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:02:48,235 INFO L225 Difference]: With dead ends: 6626 [2024-10-24 03:02:48,235 INFO L226 Difference]: Without dead ends: 3830 [2024-10-24 03:02:48,241 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-10-24 03:02:48,242 INFO L432 NwaCegarLoop]: 288 mSDtfsCounter, 993 mSDsluCounter, 688 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1023 SdHoareTripleChecker+Valid, 976 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 03:02:48,242 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1023 Valid, 976 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 03:02:48,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3830 states. [2024-10-24 03:02:48,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3830 to 3566. [2024-10-24 03:02:48,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3566 states, 2755 states have (on average 1.3056261343012705) internal successors, (3597), 2799 states have internal predecessors, (3597), 407 states have call successors, (407), 335 states have call predecessors, (407), 402 states have return successors, (553), 434 states have call predecessors, (553), 405 states have call successors, (553) [2024-10-24 03:02:48,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3566 states to 3566 states and 4557 transitions. [2024-10-24 03:02:48,557 INFO L78 Accepts]: Start accepts. Automaton has 3566 states and 4557 transitions. Word has length 66 [2024-10-24 03:02:48,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:02:48,557 INFO L471 AbstractCegarLoop]: Abstraction has 3566 states and 4557 transitions. [2024-10-24 03:02:48,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-24 03:02:48,558 INFO L276 IsEmpty]: Start isEmpty. Operand 3566 states and 4557 transitions. [2024-10-24 03:02:48,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-10-24 03:02:48,560 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:02:48,560 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:02:48,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 03:02:48,560 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:02:48,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:02:48,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1016212900, now seen corresponding path program 1 times [2024-10-24 03:02:48,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:02:48,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162633584] [2024-10-24 03:02:48,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:02:48,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:02:48,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:48,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:02:48,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:48,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 03:02:48,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:48,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 03:02:48,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:48,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 03:02:48,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:48,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 03:02:48,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:48,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 03:02:48,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:48,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 03:02:48,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:48,667 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:02:48,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:02:48,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162633584] [2024-10-24 03:02:48,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162633584] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:02:48,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:02:48,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:02:48,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165996278] [2024-10-24 03:02:48,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:02:48,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:02:48,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:02:48,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:02:48,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:02:48,671 INFO L87 Difference]: Start difference. First operand 3566 states and 4557 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-10-24 03:02:49,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:02:49,745 INFO L93 Difference]: Finished difference Result 4574 states and 5774 transitions. [2024-10-24 03:02:49,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 03:02:49,745 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 67 [2024-10-24 03:02:49,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:02:49,768 INFO L225 Difference]: With dead ends: 4574 [2024-10-24 03:02:49,769 INFO L226 Difference]: Without dead ends: 4571 [2024-10-24 03:02:49,772 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2024-10-24 03:02:49,772 INFO L432 NwaCegarLoop]: 281 mSDtfsCounter, 1495 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 247 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1505 SdHoareTripleChecker+Valid, 950 SdHoareTripleChecker+Invalid, 870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 247 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 03:02:49,773 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1505 Valid, 950 Invalid, 870 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [247 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 03:02:49,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4571 states. [2024-10-24 03:02:50,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4571 to 3986. [2024-10-24 03:02:50,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3986 states, 3068 states have (on average 1.294328552803129) internal successors, (3971), 3115 states have internal predecessors, (3971), 457 states have call successors, (457), 379 states have call predecessors, (457), 459 states have return successors, (630), 494 states have call predecessors, (630), 456 states have call successors, (630) [2024-10-24 03:02:50,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3986 states to 3986 states and 5058 transitions. [2024-10-24 03:02:50,174 INFO L78 Accepts]: Start accepts. Automaton has 3986 states and 5058 transitions. Word has length 67 [2024-10-24 03:02:50,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:02:50,175 INFO L471 AbstractCegarLoop]: Abstraction has 3986 states and 5058 transitions. [2024-10-24 03:02:50,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-10-24 03:02:50,175 INFO L276 IsEmpty]: Start isEmpty. Operand 3986 states and 5058 transitions. [2024-10-24 03:02:50,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-24 03:02:50,176 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:02:50,177 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:02:50,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 03:02:50,177 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:02:50,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:02:50,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1436679899, now seen corresponding path program 1 times [2024-10-24 03:02:50,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:02:50,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606994932] [2024-10-24 03:02:50,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:02:50,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:02:50,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:50,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:02:50,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:50,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 03:02:50,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:50,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 03:02:50,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:50,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 03:02:50,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:50,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 03:02:50,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:50,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 03:02:50,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:50,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 03:02:50,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:50,392 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:02:50,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:02:50,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606994932] [2024-10-24 03:02:50,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606994932] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 03:02:50,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2089341425] [2024-10-24 03:02:50,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:02:50,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:02:50,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 03:02:50,395 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) [2024-10-24 03:02:50,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 03:02:50,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:50,506 INFO L255 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-24 03:02:50,515 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 03:02:50,756 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:02:50,757 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 03:02:50,876 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:02:50,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2089341425] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 03:02:50,877 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 03:02:50,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 4] total 10 [2024-10-24 03:02:50,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689386014] [2024-10-24 03:02:50,877 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 03:02:50,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 03:02:50,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:02:50,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 03:02:50,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-10-24 03:02:50,879 INFO L87 Difference]: Start difference. First operand 3986 states and 5058 transitions. Second operand has 10 states, 10 states have (on average 10.9) internal successors, (109), 7 states have internal predecessors, (109), 4 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-24 03:02:53,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:02:53,101 INFO L93 Difference]: Finished difference Result 7958 states and 9921 transitions. [2024-10-24 03:02:53,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-10-24 03:02:53,102 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 7 states have internal predecessors, (109), 4 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 68 [2024-10-24 03:02:53,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:02:53,146 INFO L225 Difference]: With dead ends: 7958 [2024-10-24 03:02:53,146 INFO L226 Difference]: Without dead ends: 7955 [2024-10-24 03:02:53,151 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=593, Unknown=0, NotChecked=0, Total=756 [2024-10-24 03:02:53,152 INFO L432 NwaCegarLoop]: 352 mSDtfsCounter, 2130 mSDsluCounter, 1282 mSDsCounter, 0 mSdLazyCounter, 1955 mSolverCounterSat, 277 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2190 SdHoareTripleChecker+Valid, 1634 SdHoareTripleChecker+Invalid, 2232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 277 IncrementalHoareTripleChecker+Valid, 1955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 03:02:53,153 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2190 Valid, 1634 Invalid, 2232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [277 Valid, 1955 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 03:02:53,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7955 states. [2024-10-24 03:02:53,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7955 to 7103. [2024-10-24 03:02:53,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7103 states, 5443 states have (on average 1.2776042623553188) internal successors, (6954), 5525 states have internal predecessors, (6954), 816 states have call successors, (816), 693 states have call predecessors, (816), 842 states have return successors, (1131), 887 states have call predecessors, (1131), 815 states have call successors, (1131) [2024-10-24 03:02:53,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7103 states to 7103 states and 8901 transitions. [2024-10-24 03:02:53,751 INFO L78 Accepts]: Start accepts. Automaton has 7103 states and 8901 transitions. Word has length 68 [2024-10-24 03:02:53,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:02:53,752 INFO L471 AbstractCegarLoop]: Abstraction has 7103 states and 8901 transitions. [2024-10-24 03:02:53,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 7 states have internal predecessors, (109), 4 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-24 03:02:53,752 INFO L276 IsEmpty]: Start isEmpty. Operand 7103 states and 8901 transitions. [2024-10-24 03:02:53,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-10-24 03:02:53,754 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:02:53,754 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:02:53,773 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-24 03:02:53,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-24 03:02:53,955 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:02:53,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:02:53,956 INFO L85 PathProgramCache]: Analyzing trace with hash -557416988, now seen corresponding path program 2 times [2024-10-24 03:02:53,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:02:53,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758580003] [2024-10-24 03:02:53,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:02:53,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:02:53,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:53,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:02:53,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:54,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 03:02:54,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:54,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 03:02:54,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:54,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 03:02:54,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:54,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 03:02:54,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:54,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 03:02:54,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:54,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 03:02:54,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:54,025 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:02:54,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:02:54,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758580003] [2024-10-24 03:02:54,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758580003] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:02:54,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:02:54,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 03:02:54,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521873684] [2024-10-24 03:02:54,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:02:54,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 03:02:54,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:02:54,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 03:02:54,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:02:54,028 INFO L87 Difference]: Start difference. First operand 7103 states and 8901 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-10-24 03:02:54,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:02:54,963 INFO L93 Difference]: Finished difference Result 9491 states and 11904 transitions. [2024-10-24 03:02:54,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 03:02:54,964 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 71 [2024-10-24 03:02:54,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:02:54,986 INFO L225 Difference]: With dead ends: 9491 [2024-10-24 03:02:54,987 INFO L226 Difference]: Without dead ends: 3853 [2024-10-24 03:02:55,000 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-10-24 03:02:55,001 INFO L432 NwaCegarLoop]: 303 mSDtfsCounter, 1165 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1197 SdHoareTripleChecker+Valid, 790 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 03:02:55,001 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1197 Valid, 790 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 03:02:55,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3853 states. [2024-10-24 03:02:55,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3853 to 2917. [2024-10-24 03:02:55,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2917 states, 2263 states have (on average 1.2845779938135218) internal successors, (2907), 2291 states have internal predecessors, (2907), 335 states have call successors, (335), 275 states have call predecessors, (335), 317 states have return successors, (430), 353 states have call predecessors, (430), 334 states have call successors, (430) [2024-10-24 03:02:55,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2917 states to 2917 states and 3672 transitions. [2024-10-24 03:02:55,335 INFO L78 Accepts]: Start accepts. Automaton has 2917 states and 3672 transitions. Word has length 71 [2024-10-24 03:02:55,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:02:55,336 INFO L471 AbstractCegarLoop]: Abstraction has 2917 states and 3672 transitions. [2024-10-24 03:02:55,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-10-24 03:02:55,336 INFO L276 IsEmpty]: Start isEmpty. Operand 2917 states and 3672 transitions. [2024-10-24 03:02:55,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-24 03:02:55,337 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:02:55,338 INFO L215 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, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:02:55,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 03:02:55,338 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:02:55,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:02:55,338 INFO L85 PathProgramCache]: Analyzing trace with hash -297460082, now seen corresponding path program 1 times [2024-10-24 03:02:55,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:02:55,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983793597] [2024-10-24 03:02:55,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:02:55,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:02:55,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:55,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:02:55,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:55,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 03:02:55,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:55,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 03:02:55,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:55,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 03:02:55,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:55,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 03:02:55,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:55,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 03:02:55,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:55,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 03:02:55,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:55,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-24 03:02:55,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:55,463 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 03:02:55,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:02:55,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983793597] [2024-10-24 03:02:55,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983793597] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:02:55,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:02:55,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 03:02:55,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713006817] [2024-10-24 03:02:55,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:02:55,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 03:02:55,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:02:55,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 03:02:55,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-24 03:02:55,466 INFO L87 Difference]: Start difference. First operand 2917 states and 3672 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 5 states have internal predecessors, (56), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-24 03:02:56,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:02:56,952 INFO L93 Difference]: Finished difference Result 8235 states and 10203 transitions. [2024-10-24 03:02:56,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-24 03:02:56,952 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 5 states have internal predecessors, (56), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 76 [2024-10-24 03:02:56,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:02:56,976 INFO L225 Difference]: With dead ends: 8235 [2024-10-24 03:02:56,976 INFO L226 Difference]: Without dead ends: 4845 [2024-10-24 03:02:56,986 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2024-10-24 03:02:56,987 INFO L432 NwaCegarLoop]: 291 mSDtfsCounter, 1193 mSDsluCounter, 1157 mSDsCounter, 0 mSdLazyCounter, 1174 mSolverCounterSat, 231 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1205 SdHoareTripleChecker+Valid, 1448 SdHoareTripleChecker+Invalid, 1405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 231 IncrementalHoareTripleChecker+Valid, 1174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 03:02:56,987 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1205 Valid, 1448 Invalid, 1405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [231 Valid, 1174 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 03:02:56,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4845 states. [2024-10-24 03:02:57,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4845 to 4585. [2024-10-24 03:02:57,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4585 states, 3496 states have (on average 1.2468535469107551) internal successors, (4359), 3561 states have internal predecessors, (4359), 535 states have call successors, (535), 447 states have call predecessors, (535), 552 states have return successors, (780), 579 states have call predecessors, (780), 534 states have call successors, (780) [2024-10-24 03:02:57,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4585 states to 4585 states and 5674 transitions. [2024-10-24 03:02:57,517 INFO L78 Accepts]: Start accepts. Automaton has 4585 states and 5674 transitions. Word has length 76 [2024-10-24 03:02:57,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:02:57,518 INFO L471 AbstractCegarLoop]: Abstraction has 4585 states and 5674 transitions. [2024-10-24 03:02:57,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 5 states have internal predecessors, (56), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-24 03:02:57,519 INFO L276 IsEmpty]: Start isEmpty. Operand 4585 states and 5674 transitions. [2024-10-24 03:02:57,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-24 03:02:57,522 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:02:57,522 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:02:57,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 03:02:57,522 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:02:57,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:02:57,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1658384269, now seen corresponding path program 1 times [2024-10-24 03:02:57,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:02:57,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936002797] [2024-10-24 03:02:57,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:02:57,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:02:57,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:57,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:02:57,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:57,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 03:02:57,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:57,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 03:02:57,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:57,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 03:02:57,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:57,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 03:02:57,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:57,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 03:02:57,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:57,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 03:02:57,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:57,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-24 03:02:57,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:57,668 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 03:02:57,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:02:57,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936002797] [2024-10-24 03:02:57,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936002797] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:02:57,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:02:57,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 03:02:57,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873207291] [2024-10-24 03:02:57,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:02:57,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 03:02:57,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:02:57,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 03:02:57,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-24 03:02:57,671 INFO L87 Difference]: Start difference. First operand 4585 states and 5674 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-24 03:02:59,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:02:59,191 INFO L93 Difference]: Finished difference Result 7675 states and 9422 transitions. [2024-10-24 03:02:59,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-24 03:02:59,191 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 86 [2024-10-24 03:02:59,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:02:59,213 INFO L225 Difference]: With dead ends: 7675 [2024-10-24 03:02:59,213 INFO L226 Difference]: Without dead ends: 3832 [2024-10-24 03:02:59,220 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=540, Unknown=0, NotChecked=0, Total=702 [2024-10-24 03:02:59,221 INFO L432 NwaCegarLoop]: 276 mSDtfsCounter, 1537 mSDsluCounter, 1401 mSDsCounter, 0 mSdLazyCounter, 1528 mSolverCounterSat, 278 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1572 SdHoareTripleChecker+Valid, 1677 SdHoareTripleChecker+Invalid, 1806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 278 IncrementalHoareTripleChecker+Valid, 1528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 03:02:59,221 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1572 Valid, 1677 Invalid, 1806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [278 Valid, 1528 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 03:02:59,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3832 states. [2024-10-24 03:02:59,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3832 to 3428. [2024-10-24 03:02:59,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3428 states, 2605 states have (on average 1.234548944337812) internal successors, (3216), 2658 states have internal predecessors, (3216), 400 states have call successors, (400), 329 states have call predecessors, (400), 421 states have return successors, (549), 443 states have call predecessors, (549), 399 states have call successors, (549) [2024-10-24 03:02:59,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3428 states to 3428 states and 4165 transitions. [2024-10-24 03:02:59,589 INFO L78 Accepts]: Start accepts. Automaton has 3428 states and 4165 transitions. Word has length 86 [2024-10-24 03:02:59,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:02:59,590 INFO L471 AbstractCegarLoop]: Abstraction has 3428 states and 4165 transitions. [2024-10-24 03:02:59,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-24 03:02:59,590 INFO L276 IsEmpty]: Start isEmpty. Operand 3428 states and 4165 transitions. [2024-10-24 03:02:59,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-24 03:02:59,593 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:02:59,594 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:02:59,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 03:02:59,594 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:02:59,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:02:59,595 INFO L85 PathProgramCache]: Analyzing trace with hash 617363904, now seen corresponding path program 1 times [2024-10-24 03:02:59,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:02:59,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060873748] [2024-10-24 03:02:59,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:02:59,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:02:59,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:59,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:02:59,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:59,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 03:02:59,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:59,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 03:02:59,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:59,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 03:02:59,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:59,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 03:02:59,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:59,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 03:02:59,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:59,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 03:02:59,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:59,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-24 03:02:59,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:59,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-24 03:02:59,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:59,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 03:02:59,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:59,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 03:02:59,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:59,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 03:02:59,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:59,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 03:02:59,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:59,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 03:02:59,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:59,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 03:02:59,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:59,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 03:02:59,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:59,779 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-10-24 03:02:59,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:02:59,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060873748] [2024-10-24 03:02:59,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060873748] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 03:02:59,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [426223901] [2024-10-24 03:02:59,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:02:59,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:02:59,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 03:02:59,783 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) [2024-10-24 03:02:59,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 03:02:59,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:59,912 INFO L255 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 03:02:59,917 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 03:02:59,961 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-24 03:02:59,963 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 03:02:59,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [426223901] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:02:59,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 03:02:59,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 12 [2024-10-24 03:02:59,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365608424] [2024-10-24 03:02:59,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:02:59,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 03:02:59,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:02:59,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 03:02:59,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-24 03:02:59,967 INFO L87 Difference]: Start difference. First operand 3428 states and 4165 transitions. Second operand has 6 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-24 03:03:00,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:03:00,263 INFO L93 Difference]: Finished difference Result 5019 states and 6073 transitions. [2024-10-24 03:03:00,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 03:03:00,264 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 131 [2024-10-24 03:03:00,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:03:00,283 INFO L225 Difference]: With dead ends: 5019 [2024-10-24 03:03:00,284 INFO L226 Difference]: Without dead ends: 1859 [2024-10-24 03:03:00,292 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-24 03:03:00,293 INFO L432 NwaCegarLoop]: 487 mSDtfsCounter, 0 mSDsluCounter, 1941 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2428 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 03:03:00,293 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2428 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 03:03:00,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1859 states. [2024-10-24 03:03:00,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1859 to 1859. [2024-10-24 03:03:00,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1859 states, 1482 states have (on average 1.257085020242915) internal successors, (1863), 1498 states have internal predecessors, (1863), 189 states have call successors, (189), 143 states have call predecessors, (189), 186 states have return successors, (256), 218 states have call predecessors, (256), 188 states have call successors, (256) [2024-10-24 03:03:00,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1859 states to 1859 states and 2308 transitions. [2024-10-24 03:03:00,515 INFO L78 Accepts]: Start accepts. Automaton has 1859 states and 2308 transitions. Word has length 131 [2024-10-24 03:03:00,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:03:00,516 INFO L471 AbstractCegarLoop]: Abstraction has 1859 states and 2308 transitions. [2024-10-24 03:03:00,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-24 03:03:00,516 INFO L276 IsEmpty]: Start isEmpty. Operand 1859 states and 2308 transitions. [2024-10-24 03:03:00,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-10-24 03:03:00,519 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:03:00,519 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:03:00,536 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-24 03:03:00,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-10-24 03:03:00,724 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:03:00,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:03:00,724 INFO L85 PathProgramCache]: Analyzing trace with hash 2106673559, now seen corresponding path program 1 times [2024-10-24 03:03:00,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:03:00,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229892518] [2024-10-24 03:03:00,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:03:00,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:03:00,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:00,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:03:00,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:00,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 03:03:00,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:00,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 03:03:00,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:00,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 03:03:00,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:00,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 03:03:00,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:00,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:03:00,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:03:00,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229892518] [2024-10-24 03:03:00,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229892518] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:03:00,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:03:00,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:03:00,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442458150] [2024-10-24 03:03:00,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:03:00,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:03:00,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:03:00,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:03:00,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:03:00,861 INFO L87 Difference]: Start difference. First operand 1859 states and 2308 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:02,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:03:02,213 INFO L93 Difference]: Finished difference Result 2194 states and 2861 transitions. [2024-10-24 03:03:02,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 03:03:02,214 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2024-10-24 03:03:02,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:03:02,222 INFO L225 Difference]: With dead ends: 2194 [2024-10-24 03:03:02,246 INFO L226 Difference]: Without dead ends: 1949 [2024-10-24 03:03:02,248 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-10-24 03:03:02,249 INFO L432 NwaCegarLoop]: 286 mSDtfsCounter, 782 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 896 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 802 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 03:03:02,249 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [802 Valid, 666 Invalid, 974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 896 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 03:03:02,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1949 states. [2024-10-24 03:03:02,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1949 to 1859. [2024-10-24 03:03:02,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1859 states, 1482 states have (on average 1.2564102564102564) internal successors, (1862), 1498 states have internal predecessors, (1862), 189 states have call successors, (189), 143 states have call predecessors, (189), 186 states have return successors, (256), 218 states have call predecessors, (256), 188 states have call successors, (256) [2024-10-24 03:03:02,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1859 states to 1859 states and 2307 transitions. [2024-10-24 03:03:02,692 INFO L78 Accepts]: Start accepts. Automaton has 1859 states and 2307 transitions. Word has length 121 [2024-10-24 03:03:02,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:03:02,692 INFO L471 AbstractCegarLoop]: Abstraction has 1859 states and 2307 transitions. [2024-10-24 03:03:02,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:02,693 INFO L276 IsEmpty]: Start isEmpty. Operand 1859 states and 2307 transitions. [2024-10-24 03:03:02,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-10-24 03:03:02,696 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:03:02,696 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:03:02,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 03:03:02,696 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:03:02,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:03:02,697 INFO L85 PathProgramCache]: Analyzing trace with hash -56943015, now seen corresponding path program 1 times [2024-10-24 03:03:02,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:03:02,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036016027] [2024-10-24 03:03:02,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:03:02,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:03:02,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:02,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:03:02,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:02,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 03:03:02,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:02,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 03:03:02,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:02,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 03:03:02,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:02,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 03:03:02,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:02,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:03:02,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:03:02,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036016027] [2024-10-24 03:03:02,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036016027] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:03:02,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:03:02,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 03:03:02,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025007367] [2024-10-24 03:03:02,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:03:02,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 03:03:02,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:03:02,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 03:03:02,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:03:02,905 INFO L87 Difference]: Start difference. First operand 1859 states and 2307 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:04,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:03:04,982 INFO L93 Difference]: Finished difference Result 2530 states and 3417 transitions. [2024-10-24 03:03:04,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 03:03:04,983 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2024-10-24 03:03:04,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:03:04,991 INFO L225 Difference]: With dead ends: 2530 [2024-10-24 03:03:04,992 INFO L226 Difference]: Without dead ends: 2290 [2024-10-24 03:03:04,993 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-10-24 03:03:04,993 INFO L432 NwaCegarLoop]: 252 mSDtfsCounter, 1241 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 1791 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1266 SdHoareTripleChecker+Valid, 958 SdHoareTripleChecker+Invalid, 1917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 1791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-24 03:03:04,994 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1266 Valid, 958 Invalid, 1917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 1791 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-24 03:03:04,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2290 states. [2024-10-24 03:03:05,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2290 to 2111. [2024-10-24 03:03:05,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2111 states, 1710 states have (on average 1.3064327485380116) internal successors, (2234), 1727 states have internal predecessors, (2234), 206 states have call successors, (206), 149 states have call predecessors, (206), 193 states have return successors, (276), 235 states have call predecessors, (276), 205 states have call successors, (276) [2024-10-24 03:03:05,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2111 states to 2111 states and 2716 transitions. [2024-10-24 03:03:05,286 INFO L78 Accepts]: Start accepts. Automaton has 2111 states and 2716 transitions. Word has length 121 [2024-10-24 03:03:05,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:03:05,286 INFO L471 AbstractCegarLoop]: Abstraction has 2111 states and 2716 transitions. [2024-10-24 03:03:05,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:05,287 INFO L276 IsEmpty]: Start isEmpty. Operand 2111 states and 2716 transitions. [2024-10-24 03:03:05,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-10-24 03:03:05,289 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:03:05,289 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:03:05,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 03:03:05,290 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:03:05,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:03:05,290 INFO L85 PathProgramCache]: Analyzing trace with hash 488345497, now seen corresponding path program 1 times [2024-10-24 03:03:05,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:03:05,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649967307] [2024-10-24 03:03:05,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:03:05,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:03:05,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:05,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:03:05,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:05,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 03:03:05,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:05,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 03:03:05,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:05,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 03:03:05,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:05,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 03:03:05,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:05,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:03:05,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:03:05,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649967307] [2024-10-24 03:03:05,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649967307] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:03:05,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:03:05,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:03:05,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315018492] [2024-10-24 03:03:05,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:03:05,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:03:05,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:03:05,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:03:05,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:03:05,490 INFO L87 Difference]: Start difference. First operand 2111 states and 2716 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:08,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:03:08,222 INFO L93 Difference]: Finished difference Result 3135 states and 4407 transitions. [2024-10-24 03:03:08,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 03:03:08,222 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2024-10-24 03:03:08,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:03:08,231 INFO L225 Difference]: With dead ends: 3135 [2024-10-24 03:03:08,231 INFO L226 Difference]: Without dead ends: 2643 [2024-10-24 03:03:08,233 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 03:03:08,234 INFO L432 NwaCegarLoop]: 398 mSDtfsCounter, 1262 mSDsluCounter, 1289 mSDsCounter, 0 mSdLazyCounter, 2883 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1287 SdHoareTripleChecker+Valid, 1687 SdHoareTripleChecker+Invalid, 2970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 2883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-24 03:03:08,234 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1287 Valid, 1687 Invalid, 2970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 2883 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-24 03:03:08,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2643 states. [2024-10-24 03:03:08,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2643 to 2344. [2024-10-24 03:03:08,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2344 states, 1919 states have (on average 1.338196977592496) internal successors, (2568), 1937 states have internal predecessors, (2568), 223 states have call successors, (223), 155 states have call predecessors, (223), 200 states have return successors, (295), 253 states have call predecessors, (295), 222 states have call successors, (295) [2024-10-24 03:03:08,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2344 states to 2344 states and 3086 transitions. [2024-10-24 03:03:08,567 INFO L78 Accepts]: Start accepts. Automaton has 2344 states and 3086 transitions. Word has length 121 [2024-10-24 03:03:08,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:03:08,569 INFO L471 AbstractCegarLoop]: Abstraction has 2344 states and 3086 transitions. [2024-10-24 03:03:08,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:08,570 INFO L276 IsEmpty]: Start isEmpty. Operand 2344 states and 3086 transitions. [2024-10-24 03:03:08,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-10-24 03:03:08,574 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:03:08,574 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:03:08,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 03:03:08,574 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:03:08,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:03:08,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1545048549, now seen corresponding path program 1 times [2024-10-24 03:03:08,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:03:08,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388888251] [2024-10-24 03:03:08,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:03:08,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:03:08,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:08,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:03:08,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:08,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 03:03:08,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:08,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 03:03:08,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:08,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 03:03:08,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:08,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 03:03:08,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:08,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:03:08,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:03:08,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388888251] [2024-10-24 03:03:08,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388888251] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:03:08,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:03:08,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:03:08,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955612126] [2024-10-24 03:03:08,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:03:08,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:03:08,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:03:08,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:03:08,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:03:08,770 INFO L87 Difference]: Start difference. First operand 2344 states and 3086 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:11,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:03:11,176 INFO L93 Difference]: Finished difference Result 4021 states and 5849 transitions. [2024-10-24 03:03:11,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 03:03:11,177 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2024-10-24 03:03:11,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:03:11,191 INFO L225 Difference]: With dead ends: 4021 [2024-10-24 03:03:11,191 INFO L226 Difference]: Without dead ends: 3296 [2024-10-24 03:03:11,198 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 03:03:11,198 INFO L432 NwaCegarLoop]: 261 mSDtfsCounter, 1346 mSDsluCounter, 926 mSDsCounter, 0 mSdLazyCounter, 2428 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1371 SdHoareTripleChecker+Valid, 1187 SdHoareTripleChecker+Invalid, 2545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 2428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-24 03:03:11,199 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1371 Valid, 1187 Invalid, 2545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 2428 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-24 03:03:11,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3296 states. [2024-10-24 03:03:11,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3296 to 2811. [2024-10-24 03:03:11,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2811 states, 2338 states have (on average 1.3845166809238665) internal successors, (3237), 2358 states have internal predecessors, (3237), 257 states have call successors, (257), 167 states have call predecessors, (257), 214 states have return successors, (337), 289 states have call predecessors, (337), 256 states have call successors, (337) [2024-10-24 03:03:11,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2811 states to 2811 states and 3831 transitions. [2024-10-24 03:03:11,578 INFO L78 Accepts]: Start accepts. Automaton has 2811 states and 3831 transitions. Word has length 121 [2024-10-24 03:03:11,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:03:11,579 INFO L471 AbstractCegarLoop]: Abstraction has 2811 states and 3831 transitions. [2024-10-24 03:03:11,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:11,579 INFO L276 IsEmpty]: Start isEmpty. Operand 2811 states and 3831 transitions. [2024-10-24 03:03:11,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-10-24 03:03:11,582 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:03:11,582 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:03:11,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-24 03:03:11,583 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:03:11,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:03:11,583 INFO L85 PathProgramCache]: Analyzing trace with hash 883210073, now seen corresponding path program 1 times [2024-10-24 03:03:11,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:03:11,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733157810] [2024-10-24 03:03:11,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:03:11,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:03:11,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:11,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:03:11,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:11,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 03:03:11,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:11,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 03:03:11,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:11,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 03:03:11,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:11,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 03:03:11,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:11,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:03:11,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:03:11,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733157810] [2024-10-24 03:03:11,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733157810] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:03:11,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:03:11,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:03:11,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162646018] [2024-10-24 03:03:11,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:03:11,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:03:11,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:03:11,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:03:11,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:03:11,814 INFO L87 Difference]: Start difference. First operand 2811 states and 3831 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:13,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:03:13,493 INFO L93 Difference]: Finished difference Result 4474 states and 6579 transitions. [2024-10-24 03:03:13,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 03:03:13,494 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2024-10-24 03:03:13,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:03:13,506 INFO L225 Difference]: With dead ends: 4474 [2024-10-24 03:03:13,506 INFO L226 Difference]: Without dead ends: 3282 [2024-10-24 03:03:13,510 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 03:03:13,511 INFO L432 NwaCegarLoop]: 239 mSDtfsCounter, 970 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 1516 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 996 SdHoareTripleChecker+Valid, 975 SdHoareTripleChecker+Invalid, 1607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 03:03:13,511 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [996 Valid, 975 Invalid, 1607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1516 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 03:03:13,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3282 states. [2024-10-24 03:03:13,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3282 to 2811. [2024-10-24 03:03:13,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2811 states, 2338 states have (on average 1.3823781009409752) internal successors, (3232), 2358 states have internal predecessors, (3232), 257 states have call successors, (257), 167 states have call predecessors, (257), 214 states have return successors, (337), 289 states have call predecessors, (337), 256 states have call successors, (337) [2024-10-24 03:03:13,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2811 states to 2811 states and 3826 transitions. [2024-10-24 03:03:13,846 INFO L78 Accepts]: Start accepts. Automaton has 2811 states and 3826 transitions. Word has length 121 [2024-10-24 03:03:13,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:03:13,846 INFO L471 AbstractCegarLoop]: Abstraction has 2811 states and 3826 transitions. [2024-10-24 03:03:13,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:13,847 INFO L276 IsEmpty]: Start isEmpty. Operand 2811 states and 3826 transitions. [2024-10-24 03:03:13,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-10-24 03:03:13,850 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:03:13,850 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:03:13,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-24 03:03:13,851 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:03:13,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:03:13,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1514260457, now seen corresponding path program 1 times [2024-10-24 03:03:13,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:03:13,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468440169] [2024-10-24 03:03:13,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:03:13,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:03:13,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:13,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:03:13,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:13,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 03:03:13,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:13,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 03:03:14,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:14,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 03:03:14,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:14,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 03:03:14,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:14,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:03:14,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:03:14,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468440169] [2024-10-24 03:03:14,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468440169] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:03:14,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:03:14,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:03:14,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161399337] [2024-10-24 03:03:14,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:03:14,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:03:14,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:03:14,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:03:14,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:03:14,017 INFO L87 Difference]: Start difference. First operand 2811 states and 3826 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:15,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:03:15,543 INFO L93 Difference]: Finished difference Result 4468 states and 6552 transitions. [2024-10-24 03:03:15,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 03:03:15,543 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2024-10-24 03:03:15,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:03:15,558 INFO L225 Difference]: With dead ends: 4468 [2024-10-24 03:03:15,558 INFO L226 Difference]: Without dead ends: 3276 [2024-10-24 03:03:15,563 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 03:03:15,564 INFO L432 NwaCegarLoop]: 239 mSDtfsCounter, 968 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 1500 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 994 SdHoareTripleChecker+Valid, 975 SdHoareTripleChecker+Invalid, 1591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 03:03:15,564 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [994 Valid, 975 Invalid, 1591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1500 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 03:03:15,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3276 states. [2024-10-24 03:03:15,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3276 to 2811. [2024-10-24 03:03:15,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2811 states, 2338 states have (on average 1.3802395209580838) internal successors, (3227), 2358 states have internal predecessors, (3227), 257 states have call successors, (257), 167 states have call predecessors, (257), 214 states have return successors, (337), 289 states have call predecessors, (337), 256 states have call successors, (337) [2024-10-24 03:03:15,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2811 states to 2811 states and 3821 transitions. [2024-10-24 03:03:15,983 INFO L78 Accepts]: Start accepts. Automaton has 2811 states and 3821 transitions. Word has length 121 [2024-10-24 03:03:15,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:03:15,983 INFO L471 AbstractCegarLoop]: Abstraction has 2811 states and 3821 transitions. [2024-10-24 03:03:15,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:15,983 INFO L276 IsEmpty]: Start isEmpty. Operand 2811 states and 3821 transitions. [2024-10-24 03:03:15,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-10-24 03:03:15,987 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:03:15,987 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:03:15,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-24 03:03:15,987 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:03:15,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:03:15,988 INFO L85 PathProgramCache]: Analyzing trace with hash -483219559, now seen corresponding path program 1 times [2024-10-24 03:03:15,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:03:15,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014990488] [2024-10-24 03:03:15,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:03:15,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:03:15,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:16,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:03:16,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:16,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 03:03:16,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:16,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 03:03:16,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:16,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 03:03:16,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:16,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 03:03:16,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:16,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:03:16,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:03:16,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014990488] [2024-10-24 03:03:16,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014990488] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:03:16,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:03:16,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:03:16,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696097231] [2024-10-24 03:03:16,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:03:16,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:03:16,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:03:16,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:03:16,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:03:16,167 INFO L87 Difference]: Start difference. First operand 2811 states and 3821 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:18,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:03:18,895 INFO L93 Difference]: Finished difference Result 5705 states and 8526 transitions. [2024-10-24 03:03:18,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 03:03:18,896 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2024-10-24 03:03:18,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:03:18,911 INFO L225 Difference]: With dead ends: 5705 [2024-10-24 03:03:18,912 INFO L226 Difference]: Without dead ends: 4513 [2024-10-24 03:03:18,916 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 03:03:18,917 INFO L432 NwaCegarLoop]: 396 mSDtfsCounter, 1246 mSDsluCounter, 1289 mSDsCounter, 0 mSdLazyCounter, 2803 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1271 SdHoareTripleChecker+Valid, 1685 SdHoareTripleChecker+Invalid, 2892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 2803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-24 03:03:18,917 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1271 Valid, 1685 Invalid, 2892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 2803 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-24 03:03:18,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4513 states. [2024-10-24 03:03:19,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4513 to 3761. [2024-10-24 03:03:19,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3761 states, 3192 states have (on average 1.4345238095238095) internal successors, (4579), 3216 states have internal predecessors, (4579), 325 states have call successors, (325), 191 states have call predecessors, (325), 242 states have return successors, (427), 361 states have call predecessors, (427), 324 states have call successors, (427) [2024-10-24 03:03:19,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3761 states to 3761 states and 5331 transitions. [2024-10-24 03:03:19,375 INFO L78 Accepts]: Start accepts. Automaton has 3761 states and 5331 transitions. Word has length 121 [2024-10-24 03:03:19,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:03:19,375 INFO L471 AbstractCegarLoop]: Abstraction has 3761 states and 5331 transitions. [2024-10-24 03:03:19,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:19,376 INFO L276 IsEmpty]: Start isEmpty. Operand 3761 states and 5331 transitions. [2024-10-24 03:03:19,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-10-24 03:03:19,379 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:03:19,379 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:03:19,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-24 03:03:19,379 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:03:19,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:03:19,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1905344471, now seen corresponding path program 1 times [2024-10-24 03:03:19,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:03:19,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627440481] [2024-10-24 03:03:19,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:03:19,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:03:19,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:19,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:03:19,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:19,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 03:03:19,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:19,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 03:03:19,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:19,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 03:03:19,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:19,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 03:03:19,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:19,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:03:19,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:03:19,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627440481] [2024-10-24 03:03:19,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627440481] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:03:19,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:03:19,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:03:19,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937671883] [2024-10-24 03:03:19,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:03:19,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:03:19,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:03:19,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:03:19,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:03:19,544 INFO L87 Difference]: Start difference. First operand 3761 states and 5331 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:20,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:03:20,922 INFO L93 Difference]: Finished difference Result 6664 states and 10079 transitions. [2024-10-24 03:03:20,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 03:03:20,923 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2024-10-24 03:03:20,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:03:20,939 INFO L225 Difference]: With dead ends: 6664 [2024-10-24 03:03:20,939 INFO L226 Difference]: Without dead ends: 4522 [2024-10-24 03:03:20,946 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 03:03:20,947 INFO L432 NwaCegarLoop]: 239 mSDtfsCounter, 1122 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 1333 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1148 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 1461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 1333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 03:03:20,947 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1148 Valid, 812 Invalid, 1461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 1333 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 03:03:20,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4522 states. [2024-10-24 03:03:21,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4522 to 3761. [2024-10-24 03:03:21,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3761 states, 3192 states have (on average 1.431704260651629) internal successors, (4570), 3216 states have internal predecessors, (4570), 325 states have call successors, (325), 191 states have call predecessors, (325), 242 states have return successors, (427), 361 states have call predecessors, (427), 324 states have call successors, (427) [2024-10-24 03:03:21,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3761 states to 3761 states and 5322 transitions. [2024-10-24 03:03:21,528 INFO L78 Accepts]: Start accepts. Automaton has 3761 states and 5322 transitions. Word has length 121 [2024-10-24 03:03:21,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:03:21,529 INFO L471 AbstractCegarLoop]: Abstraction has 3761 states and 5322 transitions. [2024-10-24 03:03:21,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:21,529 INFO L276 IsEmpty]: Start isEmpty. Operand 3761 states and 5322 transitions. [2024-10-24 03:03:21,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-10-24 03:03:21,532 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:03:21,532 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:03:21,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-24 03:03:21,532 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:03:21,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:03:21,533 INFO L85 PathProgramCache]: Analyzing trace with hash -788551719, now seen corresponding path program 1 times [2024-10-24 03:03:21,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:03:21,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103045403] [2024-10-24 03:03:21,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:03:21,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:03:21,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:21,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:03:21,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:21,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 03:03:21,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:21,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 03:03:21,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:21,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 03:03:21,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:21,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 03:03:21,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:21,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:03:21,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:03:21,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103045403] [2024-10-24 03:03:21,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103045403] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:03:21,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:03:21,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:03:21,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096461575] [2024-10-24 03:03:21,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:03:21,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:03:21,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:03:21,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:03:21,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:03:21,726 INFO L87 Difference]: Start difference. First operand 3761 states and 5322 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:24,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:03:24,313 INFO L93 Difference]: Finished difference Result 9099 states and 13950 transitions. [2024-10-24 03:03:24,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 03:03:24,314 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2024-10-24 03:03:24,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:03:24,343 INFO L225 Difference]: With dead ends: 9099 [2024-10-24 03:03:24,343 INFO L226 Difference]: Without dead ends: 6957 [2024-10-24 03:03:24,353 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 03:03:24,353 INFO L432 NwaCegarLoop]: 396 mSDtfsCounter, 1238 mSDsluCounter, 1289 mSDsCounter, 0 mSdLazyCounter, 2765 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1263 SdHoareTripleChecker+Valid, 1685 SdHoareTripleChecker+Invalid, 2854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 2765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-24 03:03:24,354 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1263 Valid, 1685 Invalid, 2854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 2765 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-24 03:03:24,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6957 states. [2024-10-24 03:03:25,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6957 to 5671. [2024-10-24 03:03:25,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5671 states, 4910 states have (on average 1.4814663951120164) internal successors, (7274), 4942 states have internal predecessors, (7274), 461 states have call successors, (461), 239 states have call predecessors, (461), 298 states have return successors, (625), 505 states have call predecessors, (625), 460 states have call successors, (625) [2024-10-24 03:03:25,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5671 states to 5671 states and 8360 transitions. [2024-10-24 03:03:25,028 INFO L78 Accepts]: Start accepts. Automaton has 5671 states and 8360 transitions. Word has length 121 [2024-10-24 03:03:25,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:03:25,028 INFO L471 AbstractCegarLoop]: Abstraction has 5671 states and 8360 transitions. [2024-10-24 03:03:25,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:25,028 INFO L276 IsEmpty]: Start isEmpty. Operand 5671 states and 8360 transitions. [2024-10-24 03:03:25,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-10-24 03:03:25,033 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:03:25,033 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:03:25,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-24 03:03:25,033 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:03:25,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:03:25,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1845282921, now seen corresponding path program 1 times [2024-10-24 03:03:25,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:03:25,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242450982] [2024-10-24 03:03:25,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:03:25,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:03:25,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:25,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:03:25,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:25,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 03:03:25,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:25,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 03:03:25,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:25,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 03:03:25,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:25,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 03:03:25,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:25,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:03:25,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:03:25,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242450982] [2024-10-24 03:03:25,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242450982] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:03:25,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:03:25,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:03:25,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218498715] [2024-10-24 03:03:25,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:03:25,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:03:25,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:03:25,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:03:25,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:03:25,201 INFO L87 Difference]: Start difference. First operand 5671 states and 8360 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:28,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:03:28,461 INFO L93 Difference]: Finished difference Result 17567 states and 27604 transitions. [2024-10-24 03:03:28,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 03:03:28,461 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2024-10-24 03:03:28,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:03:28,503 INFO L225 Difference]: With dead ends: 17567 [2024-10-24 03:03:28,503 INFO L226 Difference]: Without dead ends: 13515 [2024-10-24 03:03:28,517 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 03:03:28,518 INFO L432 NwaCegarLoop]: 394 mSDtfsCounter, 1311 mSDsluCounter, 1284 mSDsCounter, 0 mSdLazyCounter, 3232 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1335 SdHoareTripleChecker+Valid, 1678 SdHoareTripleChecker+Invalid, 3323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 3232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-24 03:03:28,518 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1335 Valid, 1678 Invalid, 3323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 3232 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-24 03:03:28,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13515 states. [2024-10-24 03:03:29,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13515 to 9472. [2024-10-24 03:03:29,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9472 states, 8343 states have (on average 1.520316432937792) internal successors, (12684), 8391 states have internal predecessors, (12684), 717 states have call successors, (717), 335 states have call predecessors, (717), 410 states have return successors, (1059), 777 states have call predecessors, (1059), 716 states have call successors, (1059) [2024-10-24 03:03:29,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9472 states to 9472 states and 14460 transitions. [2024-10-24 03:03:29,367 INFO L78 Accepts]: Start accepts. Automaton has 9472 states and 14460 transitions. Word has length 121 [2024-10-24 03:03:29,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:03:29,368 INFO L471 AbstractCegarLoop]: Abstraction has 9472 states and 14460 transitions. [2024-10-24 03:03:29,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:29,368 INFO L276 IsEmpty]: Start isEmpty. Operand 9472 states and 14460 transitions. [2024-10-24 03:03:29,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-10-24 03:03:29,374 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:03:29,374 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:03:29,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-24 03:03:29,374 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:03:29,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:03:29,375 INFO L85 PathProgramCache]: Analyzing trace with hash -493897703, now seen corresponding path program 1 times [2024-10-24 03:03:29,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:03:29,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676222431] [2024-10-24 03:03:29,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:03:29,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:03:29,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:29,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:03:29,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:29,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 03:03:29,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:29,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 03:03:29,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:29,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 03:03:29,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:29,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 03:03:29,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:29,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:03:29,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:03:29,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676222431] [2024-10-24 03:03:29,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676222431] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:03:29,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:03:29,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:03:29,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467066691] [2024-10-24 03:03:29,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:03:29,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:03:29,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:03:29,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:03:29,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:03:29,540 INFO L87 Difference]: Start difference. First operand 9472 states and 14460 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:33,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:03:33,332 INFO L93 Difference]: Finished difference Result 32390 states and 51706 transitions. [2024-10-24 03:03:33,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 03:03:33,333 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2024-10-24 03:03:33,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:03:33,396 INFO L225 Difference]: With dead ends: 32390 [2024-10-24 03:03:33,397 INFO L226 Difference]: Without dead ends: 24537 [2024-10-24 03:03:33,413 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 03:03:33,413 INFO L432 NwaCegarLoop]: 287 mSDtfsCounter, 1563 mSDsluCounter, 948 mSDsCounter, 0 mSdLazyCounter, 2423 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1597 SdHoareTripleChecker+Valid, 1235 SdHoareTripleChecker+Invalid, 2537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 2423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-24 03:03:33,414 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1597 Valid, 1235 Invalid, 2537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 2423 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-24 03:03:33,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24537 states. [2024-10-24 03:03:34,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24537 to 16913. [2024-10-24 03:03:34,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16913 states, 15064 states have (on average 1.5452734997344664) internal successors, (23278), 15144 states have internal predecessors, (23278), 1213 states have call successors, (1213), 527 states have call predecessors, (1213), 634 states have return successors, (2073), 1305 states have call predecessors, (2073), 1212 states have call successors, (2073) [2024-10-24 03:03:34,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16913 states to 16913 states and 26564 transitions. [2024-10-24 03:03:34,962 INFO L78 Accepts]: Start accepts. Automaton has 16913 states and 26564 transitions. Word has length 121 [2024-10-24 03:03:34,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:03:34,963 INFO L471 AbstractCegarLoop]: Abstraction has 16913 states and 26564 transitions. [2024-10-24 03:03:34,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:34,963 INFO L276 IsEmpty]: Start isEmpty. Operand 16913 states and 26564 transitions. [2024-10-24 03:03:34,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-10-24 03:03:34,973 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:03:34,973 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:03:34,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-24 03:03:34,973 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:03:34,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:03:34,974 INFO L85 PathProgramCache]: Analyzing trace with hash -2112872617, now seen corresponding path program 1 times [2024-10-24 03:03:34,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:03:34,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346740714] [2024-10-24 03:03:34,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:03:34,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:03:34,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:35,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:03:35,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:35,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 03:03:35,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:35,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 03:03:35,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:35,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 03:03:35,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:35,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 03:03:35,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:35,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:03:35,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:03:35,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346740714] [2024-10-24 03:03:35,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346740714] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:03:35,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:03:35,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:03:35,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568495742] [2024-10-24 03:03:35,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:03:35,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:03:35,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:03:35,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:03:35,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:03:35,172 INFO L87 Difference]: Start difference. First operand 16913 states and 26564 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:40,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:03:40,364 INFO L93 Difference]: Finished difference Result 60275 states and 97676 transitions. [2024-10-24 03:03:40,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 03:03:40,365 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2024-10-24 03:03:40,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:03:40,540 INFO L225 Difference]: With dead ends: 60275 [2024-10-24 03:03:40,540 INFO L226 Difference]: Without dead ends: 44981 [2024-10-24 03:03:40,594 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 03:03:40,595 INFO L432 NwaCegarLoop]: 394 mSDtfsCounter, 1426 mSDsluCounter, 1284 mSDsCounter, 0 mSdLazyCounter, 2697 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1460 SdHoareTripleChecker+Valid, 1678 SdHoareTripleChecker+Invalid, 2789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 2697 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-24 03:03:40,595 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1460 Valid, 1678 Invalid, 2789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 2697 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-24 03:03:40,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44981 states. [2024-10-24 03:03:43,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44981 to 32019. [2024-10-24 03:03:43,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32019 states, 28762 states have (on average 1.5615742994228496) internal successors, (44914), 28906 states have internal predecessors, (44914), 2173 states have call successors, (2173), 911 states have call predecessors, (2173), 1082 states have return successors, (4555), 2329 states have call predecessors, (4555), 2172 states have call successors, (4555) [2024-10-24 03:03:43,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32019 states to 32019 states and 51642 transitions. [2024-10-24 03:03:43,237 INFO L78 Accepts]: Start accepts. Automaton has 32019 states and 51642 transitions. Word has length 121 [2024-10-24 03:03:43,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:03:43,238 INFO L471 AbstractCegarLoop]: Abstraction has 32019 states and 51642 transitions. [2024-10-24 03:03:43,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:43,238 INFO L276 IsEmpty]: Start isEmpty. Operand 32019 states and 51642 transitions. [2024-10-24 03:03:43,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-10-24 03:03:43,252 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:03:43,252 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:03:43,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-24 03:03:43,252 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:03:43,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:03:43,252 INFO L85 PathProgramCache]: Analyzing trace with hash -2141372907, now seen corresponding path program 1 times [2024-10-24 03:03:43,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:03:43,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265775714] [2024-10-24 03:03:43,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:03:43,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:03:43,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:43,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:03:43,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:43,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 03:03:43,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:43,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 03:03:43,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:43,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 03:03:43,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:43,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 03:03:43,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:43,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:03:43,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:03:43,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265775714] [2024-10-24 03:03:43,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265775714] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:03:43,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:03:43,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:03:43,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516924351] [2024-10-24 03:03:43,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:03:43,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:03:43,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:03:43,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:03:43,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:03:43,431 INFO L87 Difference]: Start difference. First operand 32019 states and 51642 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)