./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label47+token_ring.07.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/Problem05_label47+token_ring.07.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 099a6a574a6046de5acacffb386ced7bed15faed2715ea5faa9de06eb0c5ca5a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 09:16:51,920 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 09:16:51,977 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 09:16:51,980 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 09:16:51,981 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 09:16:52,002 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 09:16:52,002 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 09:16:52,002 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 09:16:52,003 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 09:16:52,004 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 09:16:52,004 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 09:16:52,005 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 09:16:52,005 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 09:16:52,006 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 09:16:52,007 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 09:16:52,007 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 09:16:52,007 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 09:16:52,007 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 09:16:52,008 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 09:16:52,008 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 09:16:52,008 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 09:16:52,010 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 09:16:52,010 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 09:16:52,011 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 09:16:52,011 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 09:16:52,011 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 09:16:52,011 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 09:16:52,011 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 09:16:52,011 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 09:16:52,012 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 09:16:52,012 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 09:16:52,012 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 09:16:52,012 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:16:52,012 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 09:16:52,012 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 09:16:52,012 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 09:16:52,013 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 09:16:52,013 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 09:16:52,013 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 09:16:52,013 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 09:16:52,013 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 09:16:52,014 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 09:16:52,014 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 099a6a574a6046de5acacffb386ced7bed15faed2715ea5faa9de06eb0c5ca5a [2024-11-16 09:16:52,226 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 09:16:52,243 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 09:16:52,245 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 09:16:52,246 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 09:16:52,246 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 09:16:52,247 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label47+token_ring.07.cil-1.c [2024-11-16 09:16:53,439 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 09:16:53,891 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 09:16:53,892 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label47+token_ring.07.cil-1.c [2024-11-16 09:16:53,926 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d7131256/10830e38cdc941ff847723d142ab8e27/FLAG24e091d3b [2024-11-16 09:16:53,938 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d7131256/10830e38cdc941ff847723d142ab8e27 [2024-11-16 09:16:53,941 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 09:16:53,942 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 09:16:53,944 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 09:16:53,944 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 09:16:53,948 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 09:16:53,949 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:16:53" (1/1) ... [2024-11-16 09:16:53,949 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13a21686 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:16:53, skipping insertion in model container [2024-11-16 09:16:53,949 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:16:53" (1/1) ... [2024-11-16 09:16:54,056 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 09:16:55,165 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label47+token_ring.07.cil-1.c[377612,377625] [2024-11-16 09:16:55,195 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label47+token_ring.07.cil-1.c[383339,383352] [2024-11-16 09:16:55,343 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:16:55,357 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 09:16:55,909 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label47+token_ring.07.cil-1.c[377612,377625] [2024-11-16 09:16:55,916 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label47+token_ring.07.cil-1.c[383339,383352] [2024-11-16 09:16:55,930 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:16:55,974 INFO L204 MainTranslator]: Completed translation [2024-11-16 09:16:55,974 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:16:55 WrapperNode [2024-11-16 09:16:55,974 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 09:16:55,975 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 09:16:55,975 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 09:16:55,975 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 09:16:55,980 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:16:55" (1/1) ... [2024-11-16 09:16:56,032 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:16:55" (1/1) ... [2024-11-16 09:16:56,277 INFO L138 Inliner]: procedures = 58, calls = 62, calls flagged for inlining = 36, calls inlined = 36, statements flattened = 12922 [2024-11-16 09:16:56,278 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 09:16:56,278 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 09:16:56,278 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 09:16:56,279 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 09:16:56,287 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:16:55" (1/1) ... [2024-11-16 09:16:56,287 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:16:55" (1/1) ... [2024-11-16 09:16:56,323 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:16:55" (1/1) ... [2024-11-16 09:16:56,466 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 09:16:56,467 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:16:55" (1/1) ... [2024-11-16 09:16:56,467 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:16:55" (1/1) ... [2024-11-16 09:16:56,557 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:16:55" (1/1) ... [2024-11-16 09:16:56,573 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:16:55" (1/1) ... [2024-11-16 09:16:56,590 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:16:55" (1/1) ... [2024-11-16 09:16:56,605 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:16:55" (1/1) ... [2024-11-16 09:16:56,645 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 09:16:56,647 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 09:16:56,647 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 09:16:56,647 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 09:16:56,648 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:16:55" (1/1) ... [2024-11-16 09:16:56,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:16:56,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:16:56,678 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 09:16:56,682 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 09:16:56,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 09:16:56,774 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-16 09:16:56,774 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-16 09:16:56,775 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-16 09:16:56,776 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-16 09:16:56,776 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-16 09:16:56,776 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-16 09:16:56,776 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-16 09:16:56,776 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-16 09:16:56,776 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-16 09:16:56,776 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-16 09:16:56,776 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-16 09:16:56,776 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-16 09:16:56,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 09:16:56,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 09:16:56,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 09:16:56,866 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 09:16:56,868 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 09:17:02,565 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L4481: havoc calculate_output3_#t~ret16#1; [2024-11-16 09:17:02,565 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7469: havoc calculate_output5_#t~ret18#1; [2024-11-16 09:17:02,565 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3033: havoc calculate_output2_#t~ret15#1; [2024-11-16 09:17:02,566 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L10440: havoc calculate_output7_#t~ret20#1; [2024-11-16 09:17:02,566 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L8922: havoc calculate_output6_#t~ret19#1; [2024-11-16 09:17:02,566 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6035: havoc calculate_output4_#t~ret17#1; [2024-11-16 09:17:02,566 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1543: havoc calculate_output_#t~ret14#1; [2024-11-16 09:17:02,790 INFO L? ?]: Removed 1725 outVars from TransFormulas that were not future-live. [2024-11-16 09:17:02,790 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 09:17:02,833 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 09:17:02,834 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 09:17:02,834 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:17:02 BoogieIcfgContainer [2024-11-16 09:17:02,834 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 09:17:02,836 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 09:17:02,836 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 09:17:02,839 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 09:17:02,839 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 09:16:53" (1/3) ... [2024-11-16 09:17:02,839 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55ee3b0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:17:02, skipping insertion in model container [2024-11-16 09:17:02,839 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:16:55" (2/3) ... [2024-11-16 09:17:02,841 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55ee3b0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:17:02, skipping insertion in model container [2024-11-16 09:17:02,841 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:17:02" (3/3) ... [2024-11-16 09:17:02,842 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label47+token_ring.07.cil-1.c [2024-11-16 09:17:02,854 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 09:17:02,854 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 09:17:02,941 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 09:17:02,947 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;@64553460, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 09:17:02,948 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-16 09:17:02,960 INFO L276 IsEmpty]: Start isEmpty. Operand has 2491 states, 2461 states have (on average 1.832182039821211) internal successors, (4509), 2464 states have internal predecessors, (4509), 21 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-16 09:17:02,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-16 09:17:02,975 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:17:02,976 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:17:02,977 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:17:02,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:17:02,981 INFO L85 PathProgramCache]: Analyzing trace with hash 555329377, now seen corresponding path program 1 times [2024-11-16 09:17:02,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:17:02,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554298453] [2024-11-16 09:17:02,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:17:02,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:17:03,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:03,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:17:03,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:03,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:17:03,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:03,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:17:03,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:03,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:17:03,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:03,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:17:03,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:03,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:17:03,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:17:03,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554298453] [2024-11-16 09:17:03,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554298453] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:17:03,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:17:03,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:17:03,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138185273] [2024-11-16 09:17:03,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:17:03,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:17:03,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:17:03,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:17:03,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:17:03,569 INFO L87 Difference]: Start difference. First operand has 2491 states, 2461 states have (on average 1.832182039821211) internal successors, (4509), 2464 states have internal predecessors, (4509), 21 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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) [2024-11-16 09:17:04,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:17:04,691 INFO L93 Difference]: Finished difference Result 5058 states and 9247 transitions. [2024-11-16 09:17:04,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:17:04,694 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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 128 [2024-11-16 09:17:04,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:17:04,718 INFO L225 Difference]: With dead ends: 5058 [2024-11-16 09:17:04,718 INFO L226 Difference]: Without dead ends: 2516 [2024-11-16 09:17:04,726 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 [2024-11-16 09:17:04,728 INFO L432 NwaCegarLoop]: 4266 mSDtfsCounter, 4886 mSDsluCounter, 12682 mSDsCounter, 0 mSdLazyCounter, 1083 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4901 SdHoareTripleChecker+Valid, 16948 SdHoareTripleChecker+Invalid, 1157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1083 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:17:04,729 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4901 Valid, 16948 Invalid, 1157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1083 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 09:17:04,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2516 states. [2024-11-16 09:17:04,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2516 to 2413. [2024-11-16 09:17:04,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2413 states, 2384 states have (on average 1.8225671140939597) internal successors, (4345), 2386 states have internal predecessors, (4345), 21 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-16 09:17:04,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2413 states to 2413 states and 4387 transitions. [2024-11-16 09:17:04,845 INFO L78 Accepts]: Start accepts. Automaton has 2413 states and 4387 transitions. Word has length 128 [2024-11-16 09:17:04,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:17:04,845 INFO L471 AbstractCegarLoop]: Abstraction has 2413 states and 4387 transitions. [2024-11-16 09:17:04,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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) [2024-11-16 09:17:04,846 INFO L276 IsEmpty]: Start isEmpty. Operand 2413 states and 4387 transitions. [2024-11-16 09:17:04,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-16 09:17:04,849 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:17:04,849 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:17:04,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 09:17:04,850 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:17:04,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:17:04,853 INFO L85 PathProgramCache]: Analyzing trace with hash 36037090, now seen corresponding path program 1 times [2024-11-16 09:17:04,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:17:04,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373774646] [2024-11-16 09:17:04,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:17:04,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:17:04,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:04,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:17:05,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:05,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:17:05,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:05,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:17:05,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:05,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:17:05,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:05,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:17:05,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:05,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:17:05,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:17:05,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373774646] [2024-11-16 09:17:05,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373774646] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:17:05,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:17:05,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:17:05,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37725279] [2024-11-16 09:17:05,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:17:05,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:17:05,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:17:05,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:17:05,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:17:05,100 INFO L87 Difference]: Start difference. First operand 2413 states and 4387 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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) [2024-11-16 09:17:07,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:17:07,088 INFO L93 Difference]: Finished difference Result 3158 states and 5536 transitions. [2024-11-16 09:17:07,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:17:07,089 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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 128 [2024-11-16 09:17:07,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:17:07,104 INFO L225 Difference]: With dead ends: 3158 [2024-11-16 09:17:07,104 INFO L226 Difference]: Without dead ends: 2883 [2024-11-16 09:17:07,107 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:17:07,108 INFO L432 NwaCegarLoop]: 4409 mSDtfsCounter, 4935 mSDsluCounter, 17419 mSDsCounter, 0 mSdLazyCounter, 2340 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4949 SdHoareTripleChecker+Valid, 21828 SdHoareTripleChecker+Invalid, 2396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:17:07,109 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4949 Valid, 21828 Invalid, 2396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2340 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-16 09:17:07,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2883 states. [2024-11-16 09:17:07,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2883 to 2699. [2024-11-16 09:17:07,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2699 states, 2644 states have (on average 1.7897125567322238) internal successors, (4732), 2648 states have internal predecessors, (4732), 39 states have call successors, (39), 12 states have call predecessors, (39), 14 states have return successors, (46), 40 states have call predecessors, (46), 39 states have call successors, (46) [2024-11-16 09:17:07,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2699 states to 2699 states and 4817 transitions. [2024-11-16 09:17:07,182 INFO L78 Accepts]: Start accepts. Automaton has 2699 states and 4817 transitions. Word has length 128 [2024-11-16 09:17:07,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:17:07,182 INFO L471 AbstractCegarLoop]: Abstraction has 2699 states and 4817 transitions. [2024-11-16 09:17:07,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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) [2024-11-16 09:17:07,183 INFO L276 IsEmpty]: Start isEmpty. Operand 2699 states and 4817 transitions. [2024-11-16 09:17:07,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-16 09:17:07,184 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:17:07,185 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:17:07,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 09:17:07,185 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:17:07,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:17:07,185 INFO L85 PathProgramCache]: Analyzing trace with hash -950545599, now seen corresponding path program 1 times [2024-11-16 09:17:07,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:17:07,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369068604] [2024-11-16 09:17:07,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:17:07,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:17:07,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:07,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:17:07,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:07,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:17:07,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:07,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:17:07,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:07,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:17:07,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:07,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:17:07,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:07,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:17:07,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:17:07,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369068604] [2024-11-16 09:17:07,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369068604] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:17:07,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:17:07,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:17:07,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574965324] [2024-11-16 09:17:07,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:17:07,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:17:07,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:17:07,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:17:07,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:17:07,369 INFO L87 Difference]: Start difference. First operand 2699 states and 4817 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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) [2024-11-16 09:17:09,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:17:09,268 INFO L93 Difference]: Finished difference Result 4121 states and 6988 transitions. [2024-11-16 09:17:09,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:17:09,269 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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 128 [2024-11-16 09:17:09,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:17:09,285 INFO L225 Difference]: With dead ends: 4121 [2024-11-16 09:17:09,285 INFO L226 Difference]: Without dead ends: 3562 [2024-11-16 09:17:09,290 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:17:09,291 INFO L432 NwaCegarLoop]: 4365 mSDtfsCounter, 4939 mSDsluCounter, 17349 mSDsCounter, 0 mSdLazyCounter, 2218 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4953 SdHoareTripleChecker+Valid, 21714 SdHoareTripleChecker+Invalid, 2282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 2218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-16 09:17:09,293 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4953 Valid, 21714 Invalid, 2282 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [64 Valid, 2218 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-16 09:17:09,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3562 states. [2024-11-16 09:17:09,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3562 to 3232. [2024-11-16 09:17:09,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3232 states, 3131 states have (on average 1.7384222293197062) internal successors, (5443), 3137 states have internal predecessors, (5443), 71 states have call successors, (71), 24 states have call predecessors, (71), 28 states have return successors, (88), 74 states have call predecessors, (88), 71 states have call successors, (88) [2024-11-16 09:17:09,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3232 states to 3232 states and 5602 transitions. [2024-11-16 09:17:09,413 INFO L78 Accepts]: Start accepts. Automaton has 3232 states and 5602 transitions. Word has length 128 [2024-11-16 09:17:09,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:17:09,415 INFO L471 AbstractCegarLoop]: Abstraction has 3232 states and 5602 transitions. [2024-11-16 09:17:09,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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) [2024-11-16 09:17:09,415 INFO L276 IsEmpty]: Start isEmpty. Operand 3232 states and 5602 transitions. [2024-11-16 09:17:09,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-16 09:17:09,417 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:17:09,417 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:17:09,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 09:17:09,418 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:17:09,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:17:09,418 INFO L85 PathProgramCache]: Analyzing trace with hash 126007810, now seen corresponding path program 1 times [2024-11-16 09:17:09,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:17:09,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738276880] [2024-11-16 09:17:09,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:17:09,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:17:09,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:09,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:17:09,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:09,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:17:09,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:09,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:17:09,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:09,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:17:09,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:09,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:17:09,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:09,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:17:09,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:17:09,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738276880] [2024-11-16 09:17:09,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738276880] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:17:09,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:17:09,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:17:09,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928534531] [2024-11-16 09:17:09,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:17:09,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:17:09,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:17:09,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:17:09,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:17:09,629 INFO L87 Difference]: Start difference. First operand 3232 states and 5602 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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) [2024-11-16 09:17:11,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:17:11,247 INFO L93 Difference]: Finished difference Result 6010 states and 9829 transitions. [2024-11-16 09:17:11,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:17:11,248 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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 128 [2024-11-16 09:17:11,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:17:11,262 INFO L225 Difference]: With dead ends: 6010 [2024-11-16 09:17:11,262 INFO L226 Difference]: Without dead ends: 4918 [2024-11-16 09:17:11,266 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:17:11,266 INFO L432 NwaCegarLoop]: 4365 mSDtfsCounter, 4939 mSDsluCounter, 17349 mSDsCounter, 0 mSdLazyCounter, 2209 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4953 SdHoareTripleChecker+Valid, 21714 SdHoareTripleChecker+Invalid, 2273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 2209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:17:11,268 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4953 Valid, 21714 Invalid, 2273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 2209 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 09:17:11,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4918 states. [2024-11-16 09:17:11,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4918 to 4301. [2024-11-16 09:17:11,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4301 states, 4108 states have (on average 1.6721032132424538) internal successors, (6869), 4118 states have internal predecessors, (6869), 135 states have call successors, (135), 48 states have call predecessors, (135), 56 states have return successors, (178), 142 states have call predecessors, (178), 135 states have call successors, (178) [2024-11-16 09:17:11,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4301 states to 4301 states and 7182 transitions. [2024-11-16 09:17:11,386 INFO L78 Accepts]: Start accepts. Automaton has 4301 states and 7182 transitions. Word has length 128 [2024-11-16 09:17:11,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:17:11,386 INFO L471 AbstractCegarLoop]: Abstraction has 4301 states and 7182 transitions. [2024-11-16 09:17:11,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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) [2024-11-16 09:17:11,387 INFO L276 IsEmpty]: Start isEmpty. Operand 4301 states and 7182 transitions. [2024-11-16 09:17:11,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-16 09:17:11,389 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:17:11,389 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:17:11,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 09:17:11,389 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:17:11,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:17:11,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1961850657, now seen corresponding path program 1 times [2024-11-16 09:17:11,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:17:11,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833520158] [2024-11-16 09:17:11,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:17:11,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:17:11,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:11,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:17:11,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:11,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:17:11,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:11,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:17:11,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:11,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:17:11,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:11,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:17:11,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:11,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:17:11,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:17:11,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833520158] [2024-11-16 09:17:11,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833520158] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:17:11,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:17:11,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:17:11,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70548933] [2024-11-16 09:17:11,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:17:11,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:17:11,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:17:11,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:17:11,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:17:11,533 INFO L87 Difference]: Start difference. First operand 4301 states and 7182 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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) [2024-11-16 09:17:13,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:17:13,137 INFO L93 Difference]: Finished difference Result 9787 states and 15527 transitions. [2024-11-16 09:17:13,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:17:13,137 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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 128 [2024-11-16 09:17:13,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:17:13,164 INFO L225 Difference]: With dead ends: 9787 [2024-11-16 09:17:13,164 INFO L226 Difference]: Without dead ends: 7626 [2024-11-16 09:17:13,171 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:17:13,173 INFO L432 NwaCegarLoop]: 4365 mSDtfsCounter, 4939 mSDsluCounter, 17349 mSDsCounter, 0 mSdLazyCounter, 2200 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4953 SdHoareTripleChecker+Valid, 21714 SdHoareTripleChecker+Invalid, 2264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 2200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:17:13,173 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4953 Valid, 21714 Invalid, 2264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 2200 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 09:17:13,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7626 states. [2024-11-16 09:17:13,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7626 to 6446. [2024-11-16 09:17:13,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6446 states, 6069 states have (on average 1.603394298896029) internal successors, (9731), 6087 states have internal predecessors, (9731), 263 states have call successors, (263), 96 states have call predecessors, (263), 112 states have return successors, (376), 278 states have call predecessors, (376), 263 states have call successors, (376) [2024-11-16 09:17:13,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6446 states to 6446 states and 10370 transitions. [2024-11-16 09:17:13,363 INFO L78 Accepts]: Start accepts. Automaton has 6446 states and 10370 transitions. Word has length 128 [2024-11-16 09:17:13,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:17:13,364 INFO L471 AbstractCegarLoop]: Abstraction has 6446 states and 10370 transitions. [2024-11-16 09:17:13,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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) [2024-11-16 09:17:13,364 INFO L276 IsEmpty]: Start isEmpty. Operand 6446 states and 10370 transitions. [2024-11-16 09:17:13,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-16 09:17:13,372 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:17:13,372 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:17:13,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 09:17:13,372 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:17:13,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:17:13,374 INFO L85 PathProgramCache]: Analyzing trace with hash 2021071394, now seen corresponding path program 1 times [2024-11-16 09:17:13,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:17:13,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944490108] [2024-11-16 09:17:13,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:17:13,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:17:13,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:13,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:17:13,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:13,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:17:13,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:13,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:17:13,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:13,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:17:13,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:13,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:17:13,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:13,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:17:13,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:17:13,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944490108] [2024-11-16 09:17:13,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944490108] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:17:13,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:17:13,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:17:13,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659507274] [2024-11-16 09:17:13,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:17:13,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:17:13,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:17:13,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:17:13,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:17:13,528 INFO L87 Difference]: Start difference. First operand 6446 states and 10370 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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) [2024-11-16 09:17:15,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:17:15,279 INFO L93 Difference]: Finished difference Result 17340 states and 26981 transitions. [2024-11-16 09:17:15,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:17:15,280 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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 128 [2024-11-16 09:17:15,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:17:15,322 INFO L225 Difference]: With dead ends: 17340 [2024-11-16 09:17:15,323 INFO L226 Difference]: Without dead ends: 13034 [2024-11-16 09:17:15,336 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:17:15,339 INFO L432 NwaCegarLoop]: 4365 mSDtfsCounter, 4939 mSDsluCounter, 17349 mSDsCounter, 0 mSdLazyCounter, 2191 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4953 SdHoareTripleChecker+Valid, 21714 SdHoareTripleChecker+Invalid, 2255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 2191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:17:15,339 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4953 Valid, 21714 Invalid, 2255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 2191 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 09:17:15,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13034 states. [2024-11-16 09:17:15,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13034 to 10751. [2024-11-16 09:17:15,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10751 states, 10006 states have (on average 1.5467719368378972) internal successors, (15477), 10040 states have internal predecessors, (15477), 519 states have call successors, (519), 192 states have call predecessors, (519), 224 states have return successors, (826), 550 states have call predecessors, (826), 519 states have call successors, (826) [2024-11-16 09:17:15,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10751 states to 10751 states and 16822 transitions. [2024-11-16 09:17:15,669 INFO L78 Accepts]: Start accepts. Automaton has 10751 states and 16822 transitions. Word has length 128 [2024-11-16 09:17:15,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:17:15,670 INFO L471 AbstractCegarLoop]: Abstraction has 10751 states and 16822 transitions. [2024-11-16 09:17:15,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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) [2024-11-16 09:17:15,671 INFO L276 IsEmpty]: Start isEmpty. Operand 10751 states and 16822 transitions. [2024-11-16 09:17:15,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-16 09:17:15,678 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:17:15,678 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:17:15,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 09:17:15,678 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:17:15,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:17:15,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1579248895, now seen corresponding path program 1 times [2024-11-16 09:17:15,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:17:15,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371791030] [2024-11-16 09:17:15,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:17:15,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:17:15,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:15,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:17:15,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:15,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:17:15,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:15,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:17:15,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:15,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:17:15,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:15,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:17:15,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:15,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:17:15,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:17:15,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371791030] [2024-11-16 09:17:15,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371791030] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:17:15,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:17:15,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:17:15,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700828549] [2024-11-16 09:17:15,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:17:15,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:17:15,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:17:15,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:17:15,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:17:15,826 INFO L87 Difference]: Start difference. First operand 10751 states and 16822 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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) [2024-11-16 09:17:17,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:17:17,134 INFO L93 Difference]: Finished difference Result 21772 states and 33891 transitions. [2024-11-16 09:17:17,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:17:17,134 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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 128 [2024-11-16 09:17:17,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:17:17,169 INFO L225 Difference]: With dead ends: 21772 [2024-11-16 09:17:17,169 INFO L226 Difference]: Without dead ends: 13159 [2024-11-16 09:17:17,192 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 [2024-11-16 09:17:17,193 INFO L432 NwaCegarLoop]: 4197 mSDtfsCounter, 4827 mSDsluCounter, 12478 mSDsCounter, 0 mSdLazyCounter, 1017 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4842 SdHoareTripleChecker+Valid, 16675 SdHoareTripleChecker+Invalid, 1093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 1017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 09:17:17,193 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4842 Valid, 16675 Invalid, 1093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 1017 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 09:17:17,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13159 states. [2024-11-16 09:17:17,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13159 to 10751. [2024-11-16 09:17:17,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10751 states, 10006 states have (on average 1.5434739156506097) internal successors, (15444), 10040 states have internal predecessors, (15444), 519 states have call successors, (519), 192 states have call predecessors, (519), 224 states have return successors, (826), 550 states have call predecessors, (826), 519 states have call successors, (826) [2024-11-16 09:17:17,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10751 states to 10751 states and 16789 transitions. [2024-11-16 09:17:17,613 INFO L78 Accepts]: Start accepts. Automaton has 10751 states and 16789 transitions. Word has length 128 [2024-11-16 09:17:17,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:17:17,613 INFO L471 AbstractCegarLoop]: Abstraction has 10751 states and 16789 transitions. [2024-11-16 09:17:17,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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) [2024-11-16 09:17:17,614 INFO L276 IsEmpty]: Start isEmpty. Operand 10751 states and 16789 transitions. [2024-11-16 09:17:17,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-16 09:17:17,620 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:17:17,620 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:17:17,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 09:17:17,621 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:17:17,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:17:17,621 INFO L85 PathProgramCache]: Analyzing trace with hash -448462270, now seen corresponding path program 1 times [2024-11-16 09:17:17,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:17:17,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535280634] [2024-11-16 09:17:17,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:17:17,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:17:17,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:17,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:17:17,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:17,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:17:17,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:17,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:17:17,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:17,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:17:17,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:17,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:17:17,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:17,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:17:17,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:17:17,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535280634] [2024-11-16 09:17:17,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535280634] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:17:17,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:17:17,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:17:17,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801956931] [2024-11-16 09:17:17,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:17:17,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:17:17,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:17:17,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:17:17,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:17:17,755 INFO L87 Difference]: Start difference. First operand 10751 states and 16789 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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) [2024-11-16 09:17:18,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:17:18,815 INFO L93 Difference]: Finished difference Result 21708 states and 33666 transitions. [2024-11-16 09:17:18,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:17:18,815 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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 128 [2024-11-16 09:17:18,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:17:18,847 INFO L225 Difference]: With dead ends: 21708 [2024-11-16 09:17:18,848 INFO L226 Difference]: Without dead ends: 13095 [2024-11-16 09:17:18,869 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 [2024-11-16 09:17:18,870 INFO L432 NwaCegarLoop]: 4197 mSDtfsCounter, 4821 mSDsluCounter, 12476 mSDsCounter, 0 mSdLazyCounter, 999 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4836 SdHoareTripleChecker+Valid, 16673 SdHoareTripleChecker+Invalid, 1077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 999 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 09:17:18,871 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4836 Valid, 16673 Invalid, 1077 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 999 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 09:17:18,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13095 states. [2024-11-16 09:17:19,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13095 to 10751. [2024-11-16 09:17:19,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10751 states, 10006 states have (on average 1.540175894463322) internal successors, (15411), 10040 states have internal predecessors, (15411), 519 states have call successors, (519), 192 states have call predecessors, (519), 224 states have return successors, (826), 550 states have call predecessors, (826), 519 states have call successors, (826) [2024-11-16 09:17:19,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10751 states to 10751 states and 16756 transitions. [2024-11-16 09:17:19,287 INFO L78 Accepts]: Start accepts. Automaton has 10751 states and 16756 transitions. Word has length 128 [2024-11-16 09:17:19,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:17:19,288 INFO L471 AbstractCegarLoop]: Abstraction has 10751 states and 16756 transitions. [2024-11-16 09:17:19,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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) [2024-11-16 09:17:19,288 INFO L276 IsEmpty]: Start isEmpty. Operand 10751 states and 16756 transitions. [2024-11-16 09:17:19,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-16 09:17:19,295 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:17:19,295 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:17:19,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 09:17:19,295 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:17:19,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:17:19,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1045450179, now seen corresponding path program 1 times [2024-11-16 09:17:19,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:17:19,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833287571] [2024-11-16 09:17:19,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:17:19,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:17:19,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:19,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:17:19,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:19,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:17:19,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:19,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:17:19,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:19,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:17:19,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:19,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:17:19,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:19,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:17:19,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:17:19,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833287571] [2024-11-16 09:17:19,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833287571] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:17:19,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:17:19,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:17:19,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686944898] [2024-11-16 09:17:19,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:17:19,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:17:19,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:17:19,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:17:19,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:17:19,437 INFO L87 Difference]: Start difference. First operand 10751 states and 16756 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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) [2024-11-16 09:17:21,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:17:21,713 INFO L93 Difference]: Finished difference Result 34973 states and 53601 transitions. [2024-11-16 09:17:21,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:17:21,718 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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 128 [2024-11-16 09:17:21,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:17:21,780 INFO L225 Difference]: With dead ends: 34973 [2024-11-16 09:17:21,780 INFO L226 Difference]: Without dead ends: 26362 [2024-11-16 09:17:21,804 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:17:21,805 INFO L432 NwaCegarLoop]: 4388 mSDtfsCounter, 5166 mSDsluCounter, 17372 mSDsCounter, 0 mSdLazyCounter, 2144 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5188 SdHoareTripleChecker+Valid, 21760 SdHoareTripleChecker+Invalid, 2209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 2144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:17:21,805 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5188 Valid, 21760 Invalid, 2209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 2144 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 09:17:21,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26362 states. [2024-11-16 09:17:22,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26362 to 19391. [2024-11-16 09:17:22,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19391 states, 17942 states have (on average 1.5019507301304202) internal successors, (26948), 18008 states have internal predecessors, (26948), 999 states have call successors, (999), 384 states have call predecessors, (999), 448 states have return successors, (1856), 1062 states have call predecessors, (1856), 999 states have call successors, (1856) [2024-11-16 09:17:22,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19391 states to 19391 states and 29803 transitions. [2024-11-16 09:17:22,879 INFO L78 Accepts]: Start accepts. Automaton has 19391 states and 29803 transitions. Word has length 128 [2024-11-16 09:17:22,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:17:22,879 INFO L471 AbstractCegarLoop]: Abstraction has 19391 states and 29803 transitions. [2024-11-16 09:17:22,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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) [2024-11-16 09:17:22,880 INFO L276 IsEmpty]: Start isEmpty. Operand 19391 states and 29803 transitions. [2024-11-16 09:17:22,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-16 09:17:22,893 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:17:22,893 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:17:22,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 09:17:22,893 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:17:22,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:17:22,894 INFO L85 PathProgramCache]: Analyzing trace with hash -153285086, now seen corresponding path program 1 times [2024-11-16 09:17:22,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:17:22,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861094319] [2024-11-16 09:17:22,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:17:22,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:17:22,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:22,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:17:22,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:22,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:17:22,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:23,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:17:23,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:23,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:17:23,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:23,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:17:23,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:23,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:17:23,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:17:23,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861094319] [2024-11-16 09:17:23,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861094319] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:17:23,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:17:23,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:17:23,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731268179] [2024-11-16 09:17:23,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:17:23,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:17:23,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:17:23,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:17:23,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:17:23,028 INFO L87 Difference]: Start difference. First operand 19391 states and 29803 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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) [2024-11-16 09:17:24,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:17:24,443 INFO L93 Difference]: Finished difference Result 41036 states and 63380 transitions. [2024-11-16 09:17:24,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:17:24,443 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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 128 [2024-11-16 09:17:24,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:17:24,505 INFO L225 Difference]: With dead ends: 41036 [2024-11-16 09:17:24,506 INFO L226 Difference]: Without dead ends: 23783 [2024-11-16 09:17:24,538 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 [2024-11-16 09:17:24,539 INFO L432 NwaCegarLoop]: 4197 mSDtfsCounter, 4820 mSDsluCounter, 12476 mSDsCounter, 0 mSdLazyCounter, 977 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4835 SdHoareTripleChecker+Valid, 16673 SdHoareTripleChecker+Invalid, 1055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 977 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 09:17:24,539 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4835 Valid, 16673 Invalid, 1055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 977 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 09:17:24,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23783 states. [2024-11-16 09:17:25,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23783 to 19391. [2024-11-16 09:17:25,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19391 states, 17942 states have (on average 1.498327945602497) internal successors, (26883), 18008 states have internal predecessors, (26883), 999 states have call successors, (999), 384 states have call predecessors, (999), 448 states have return successors, (1856), 1062 states have call predecessors, (1856), 999 states have call successors, (1856) [2024-11-16 09:17:25,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19391 states to 19391 states and 29738 transitions. [2024-11-16 09:17:25,292 INFO L78 Accepts]: Start accepts. Automaton has 19391 states and 29738 transitions. Word has length 128 [2024-11-16 09:17:25,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:17:25,292 INFO L471 AbstractCegarLoop]: Abstraction has 19391 states and 29738 transitions. [2024-11-16 09:17:25,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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) [2024-11-16 09:17:25,293 INFO L276 IsEmpty]: Start isEmpty. Operand 19391 states and 29738 transitions. [2024-11-16 09:17:25,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-16 09:17:25,302 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:17:25,302 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:17:25,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 09:17:25,303 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:17:25,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:17:25,303 INFO L85 PathProgramCache]: Analyzing trace with hash 362235363, now seen corresponding path program 1 times [2024-11-16 09:17:25,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:17:25,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496398271] [2024-11-16 09:17:25,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:17:25,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:17:25,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:25,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:17:25,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:25,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:17:25,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:25,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:17:25,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:25,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:17:25,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:25,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:17:25,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:25,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:17:25,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:17:25,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496398271] [2024-11-16 09:17:25,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496398271] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:17:25,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:17:25,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:17:25,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782171160] [2024-11-16 09:17:25,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:17:25,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:17:25,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:17:25,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:17:25,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:17:25,411 INFO L87 Difference]: Start difference. First operand 19391 states and 29738 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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) [2024-11-16 09:17:26,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:17:26,776 INFO L93 Difference]: Finished difference Result 40972 states and 63058 transitions. [2024-11-16 09:17:26,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:17:26,777 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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 128 [2024-11-16 09:17:26,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:17:26,827 INFO L225 Difference]: With dead ends: 40972 [2024-11-16 09:17:26,827 INFO L226 Difference]: Without dead ends: 23719 [2024-11-16 09:17:26,851 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 [2024-11-16 09:17:26,853 INFO L432 NwaCegarLoop]: 4197 mSDtfsCounter, 4818 mSDsluCounter, 12476 mSDsCounter, 0 mSdLazyCounter, 963 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4833 SdHoareTripleChecker+Valid, 16673 SdHoareTripleChecker+Invalid, 1041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:17:26,853 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4833 Valid, 16673 Invalid, 1041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 963 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 09:17:26,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23719 states. [2024-11-16 09:17:27,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23719 to 19391. [2024-11-16 09:17:27,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19391 states, 17942 states have (on average 1.4947051610745736) internal successors, (26818), 18008 states have internal predecessors, (26818), 999 states have call successors, (999), 384 states have call predecessors, (999), 448 states have return successors, (1856), 1062 states have call predecessors, (1856), 999 states have call successors, (1856) [2024-11-16 09:17:27,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19391 states to 19391 states and 29673 transitions. [2024-11-16 09:17:27,526 INFO L78 Accepts]: Start accepts. Automaton has 19391 states and 29673 transitions. Word has length 128 [2024-11-16 09:17:27,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:17:27,526 INFO L471 AbstractCegarLoop]: Abstraction has 19391 states and 29673 transitions. [2024-11-16 09:17:27,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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) [2024-11-16 09:17:27,526 INFO L276 IsEmpty]: Start isEmpty. Operand 19391 states and 29673 transitions. [2024-11-16 09:17:27,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-16 09:17:27,537 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:17:27,537 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:17:27,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 09:17:27,537 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:17:27,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:17:27,537 INFO L85 PathProgramCache]: Analyzing trace with hash -590966270, now seen corresponding path program 1 times [2024-11-16 09:17:27,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:17:27,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657726597] [2024-11-16 09:17:27,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:17:27,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:17:27,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:27,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:17:27,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:27,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:17:27,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:27,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:17:27,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:27,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:17:27,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:27,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:17:27,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:27,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:17:27,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:17:27,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657726597] [2024-11-16 09:17:27,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657726597] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:17:27,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:17:27,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:17:27,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577206941] [2024-11-16 09:17:27,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:17:27,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:17:27,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:17:27,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:17:27,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:17:27,669 INFO L87 Difference]: Start difference. First operand 19391 states and 29673 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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) [2024-11-16 09:17:31,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:17:31,012 INFO L93 Difference]: Finished difference Result 64701 states and 98792 transitions. [2024-11-16 09:17:31,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:17:31,012 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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 128 [2024-11-16 09:17:31,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:17:31,123 INFO L225 Difference]: With dead ends: 64701 [2024-11-16 09:17:31,123 INFO L226 Difference]: Without dead ends: 47450 [2024-11-16 09:17:31,158 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:17:31,159 INFO L432 NwaCegarLoop]: 4366 mSDtfsCounter, 5046 mSDsluCounter, 17344 mSDsCounter, 0 mSdLazyCounter, 2006 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5068 SdHoareTripleChecker+Valid, 21710 SdHoareTripleChecker+Invalid, 2075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 2006 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:17:31,159 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5068 Valid, 21710 Invalid, 2075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 2006 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 09:17:31,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47450 states. [2024-11-16 09:17:32,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47450 to 36767. [2024-11-16 09:17:32,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36767 states, 33942 states have (on average 1.470862058806199) internal successors, (49924), 34072 states have internal predecessors, (49924), 1927 states have call successors, (1927), 768 states have call predecessors, (1927), 896 states have return successors, (4370), 2054 states have call predecessors, (4370), 1927 states have call successors, (4370) [2024-11-16 09:17:32,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36767 states to 36767 states and 56221 transitions. [2024-11-16 09:17:32,679 INFO L78 Accepts]: Start accepts. Automaton has 36767 states and 56221 transitions. Word has length 128 [2024-11-16 09:17:32,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:17:32,680 INFO L471 AbstractCegarLoop]: Abstraction has 36767 states and 56221 transitions. [2024-11-16 09:17:32,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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) [2024-11-16 09:17:32,680 INFO L276 IsEmpty]: Start isEmpty. Operand 36767 states and 56221 transitions. [2024-11-16 09:17:32,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-16 09:17:32,699 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:17:32,699 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:17:32,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 09:17:32,699 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:17:32,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:17:32,700 INFO L85 PathProgramCache]: Analyzing trace with hash 209569283, now seen corresponding path program 1 times [2024-11-16 09:17:32,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:17:32,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381000790] [2024-11-16 09:17:32,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:17:32,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:17:32,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:32,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:17:32,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:32,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:17:32,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:32,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:17:32,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:32,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:17:32,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:32,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:17:32,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:32,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:17:32,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:17:32,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381000790] [2024-11-16 09:17:32,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381000790] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:17:32,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:17:32,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:17:32,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064844896] [2024-11-16 09:17:32,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:17:32,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:17:32,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:17:32,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:17:32,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:17:32,815 INFO L87 Difference]: Start difference. First operand 36767 states and 56221 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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) [2024-11-16 09:17:35,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:17:35,355 INFO L93 Difference]: Finished difference Result 79436 states and 123082 transitions. [2024-11-16 09:17:35,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:17:35,356 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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 128 [2024-11-16 09:17:35,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:17:35,476 INFO L225 Difference]: With dead ends: 79436 [2024-11-16 09:17:35,476 INFO L226 Difference]: Without dead ends: 44807 [2024-11-16 09:17:35,546 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 [2024-11-16 09:17:35,546 INFO L432 NwaCegarLoop]: 4197 mSDtfsCounter, 4712 mSDsluCounter, 16604 mSDsCounter, 0 mSdLazyCounter, 1031 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4727 SdHoareTripleChecker+Valid, 20801 SdHoareTripleChecker+Invalid, 1088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 09:17:35,547 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4727 Valid, 20801 Invalid, 1088 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1031 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 09:17:35,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44807 states. [2024-11-16 09:17:37,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44807 to 36767. [2024-11-16 09:17:37,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36767 states, 33942 states have (on average 1.4670614577809205) internal successors, (49795), 34072 states have internal predecessors, (49795), 1927 states have call successors, (1927), 768 states have call predecessors, (1927), 896 states have return successors, (4370), 2054 states have call predecessors, (4370), 1927 states have call successors, (4370) [2024-11-16 09:17:37,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36767 states to 36767 states and 56092 transitions. [2024-11-16 09:17:37,725 INFO L78 Accepts]: Start accepts. Automaton has 36767 states and 56092 transitions. Word has length 128 [2024-11-16 09:17:37,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:17:37,726 INFO L471 AbstractCegarLoop]: Abstraction has 36767 states and 56092 transitions. [2024-11-16 09:17:37,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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) [2024-11-16 09:17:37,726 INFO L276 IsEmpty]: Start isEmpty. Operand 36767 states and 56092 transitions. [2024-11-16 09:17:37,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-16 09:17:37,744 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:17:37,744 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:17:37,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 09:17:37,744 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:17:37,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:17:37,744 INFO L85 PathProgramCache]: Analyzing trace with hash -318796318, now seen corresponding path program 1 times [2024-11-16 09:17:37,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:17:37,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224631613] [2024-11-16 09:17:37,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:17:37,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:17:37,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:37,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:17:37,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:37,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:17:37,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:37,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:17:37,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:37,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:17:37,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:37,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:17:37,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:37,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:17:37,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:17:37,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224631613] [2024-11-16 09:17:37,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224631613] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:17:37,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:17:37,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:17:37,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706762453] [2024-11-16 09:17:37,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:17:37,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:17:37,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:17:37,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:17:37,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:17:37,986 INFO L87 Difference]: Start difference. First operand 36767 states and 56092 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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) [2024-11-16 09:17:43,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:17:43,203 INFO L93 Difference]: Finished difference Result 123101 states and 189364 transitions. [2024-11-16 09:17:43,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:17:43,204 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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 128 [2024-11-16 09:17:43,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:17:43,394 INFO L225 Difference]: With dead ends: 123101 [2024-11-16 09:17:43,394 INFO L226 Difference]: Without dead ends: 88474 [2024-11-16 09:17:43,455 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:17:43,456 INFO L432 NwaCegarLoop]: 4366 mSDtfsCounter, 4962 mSDsluCounter, 17344 mSDsCounter, 0 mSdLazyCounter, 1965 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4984 SdHoareTripleChecker+Valid, 21710 SdHoareTripleChecker+Invalid, 2035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 1965 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:17:43,456 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4984 Valid, 21710 Invalid, 2035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 1965 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 09:17:43,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88474 states. [2024-11-16 09:17:47,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88474 to 71583. [2024-11-16 09:17:47,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71583 states, 66070 states have (on average 1.4540790071136673) internal successors, (96071), 66328 states have internal predecessors, (96071), 3719 states have call successors, (3719), 1536 states have call predecessors, (3719), 1792 states have return successors, (10792), 3974 states have call predecessors, (10792), 3719 states have call successors, (10792) [2024-11-16 09:17:47,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71583 states to 71583 states and 110582 transitions. [2024-11-16 09:17:47,500 INFO L78 Accepts]: Start accepts. Automaton has 71583 states and 110582 transitions. Word has length 128 [2024-11-16 09:17:47,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:17:47,500 INFO L471 AbstractCegarLoop]: Abstraction has 71583 states and 110582 transitions. [2024-11-16 09:17:47,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 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) [2024-11-16 09:17:47,501 INFO L276 IsEmpty]: Start isEmpty. Operand 71583 states and 110582 transitions. [2024-11-16 09:17:47,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-16 09:17:47,537 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:17:47,537 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:17:47,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 09:17:47,538 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:17:47,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:17:47,538 INFO L85 PathProgramCache]: Analyzing trace with hash 356896291, now seen corresponding path program 1 times [2024-11-16 09:17:47,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:17:47,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442533037] [2024-11-16 09:17:47,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:17:47,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:17:47,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:47,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:17:47,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:47,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:17:47,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:47,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:17:47,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:47,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:17:47,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:47,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:17:47,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:47,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:17:47,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:17:47,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442533037] [2024-11-16 09:17:47,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442533037] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:17:47,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:17:47,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:17:47,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144162174] [2024-11-16 09:17:47,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:17:47,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:17:47,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:17:47,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:17:47,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:17:47,670 INFO L87 Difference]: Start difference. First operand 71583 states and 110582 transitions. Second operand has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 4 states have internal predecessors, (118), 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)