./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label40+token_ring.03.cil-2.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_label40+token_ring.03.cil-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2f6e67caa8159a722902bebe9d23adade07462f3fac0eb20b485945b97ba6592 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 09:03:26,890 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 09:03:26,989 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 09:03:26,993 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 09:03:26,994 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 09:03:27,021 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 09:03:27,022 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 09:03:27,022 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 09:03:27,023 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 09:03:27,025 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 09:03:27,025 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 09:03:27,025 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 09:03:27,026 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 09:03:27,026 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 09:03:27,028 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 09:03:27,028 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 09:03:27,028 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 09:03:27,028 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 09:03:27,029 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 09:03:27,029 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 09:03:27,029 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 09:03:27,032 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 09:03:27,032 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 09:03:27,032 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 09:03:27,032 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 09:03:27,033 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 09:03:27,033 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 09:03:27,033 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 09:03:27,033 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 09:03:27,033 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 09:03:27,034 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 09:03:27,034 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 09:03:27,034 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:03:27,034 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 09:03:27,034 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 09:03:27,035 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 09:03:27,035 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 09:03:27,036 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 09:03:27,037 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 09:03:27,038 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 09:03:27,038 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 09:03:27,038 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 09:03:27,038 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f6e67caa8159a722902bebe9d23adade07462f3fac0eb20b485945b97ba6592 [2024-11-16 09:03:27,295 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 09:03:27,320 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 09:03:27,323 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 09:03:27,324 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 09:03:27,328 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 09:03:27,329 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label40+token_ring.03.cil-2.c [2024-11-16 09:03:28,714 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 09:03:29,371 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 09:03:29,372 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label40+token_ring.03.cil-2.c [2024-11-16 09:03:29,416 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e19dc358/c6dd144ea61345608d19588b47a9aa20/FLAG85f98b30f [2024-11-16 09:03:29,434 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e19dc358/c6dd144ea61345608d19588b47a9aa20 [2024-11-16 09:03:29,438 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 09:03:29,439 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 09:03:29,441 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 09:03:29,441 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 09:03:29,448 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 09:03:29,449 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:03:29" (1/1) ... [2024-11-16 09:03:29,450 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@616f8e67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:03:29, skipping insertion in model container [2024-11-16 09:03:29,450 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:03:29" (1/1) ... [2024-11-16 09:03:29,597 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 09:03:31,280 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_label40+token_ring.03.cil-2.c[377069,377082] [2024-11-16 09:03:31,315 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_label40+token_ring.03.cil-2.c[383339,383352] [2024-11-16 09:03:31,482 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:03:31,493 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 09:03:32,333 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_label40+token_ring.03.cil-2.c[377069,377082] [2024-11-16 09:03:32,341 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_label40+token_ring.03.cil-2.c[383339,383352] [2024-11-16 09:03:32,351 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:03:32,403 INFO L204 MainTranslator]: Completed translation [2024-11-16 09:03:32,404 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:03:32 WrapperNode [2024-11-16 09:03:32,404 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 09:03:32,405 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 09:03:32,405 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 09:03:32,405 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 09:03:32,412 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:03:32" (1/1) ... [2024-11-16 09:03:32,508 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:03:32" (1/1) ... [2024-11-16 09:03:32,941 INFO L138 Inliner]: procedures = 50, calls = 50, calls flagged for inlining = 28, calls inlined = 28, statements flattened = 12686 [2024-11-16 09:03:32,942 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 09:03:32,942 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 09:03:32,943 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 09:03:32,943 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 09:03:32,953 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:03:32" (1/1) ... [2024-11-16 09:03:32,953 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:03:32" (1/1) ... [2024-11-16 09:03:33,154 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:03:32" (1/1) ... [2024-11-16 09:03:33,238 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 09:03:33,239 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:03:32" (1/1) ... [2024-11-16 09:03:33,239 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:03:32" (1/1) ... [2024-11-16 09:03:33,384 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:03:32" (1/1) ... [2024-11-16 09:03:33,404 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:03:32" (1/1) ... [2024-11-16 09:03:33,426 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:03:32" (1/1) ... [2024-11-16 09:03:33,503 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:03:32" (1/1) ... [2024-11-16 09:03:33,554 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 09:03:33,556 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 09:03:33,556 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 09:03:33,557 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 09:03:33,558 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:03:32" (1/1) ... [2024-11-16 09:03:33,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:03:33,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:03:33,610 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 09:03:33,612 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 09:03:33,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 09:03:33,692 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-16 09:03:33,693 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-16 09:03:33,693 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-16 09:03:33,694 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-16 09:03:33,694 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-16 09:03:33,694 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-16 09:03:33,695 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-16 09:03:33,695 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-16 09:03:33,695 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-16 09:03:33,695 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-16 09:03:33,695 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-16 09:03:33,695 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-16 09:03:33,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 09:03:33,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 09:03:33,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 09:03:33,889 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 09:03:33,892 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 09:03:41,027 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L4481: havoc calculate_output3_#t~ret16#1; [2024-11-16 09:03:41,028 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7469: havoc calculate_output5_#t~ret18#1; [2024-11-16 09:03:41,028 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3033: havoc calculate_output2_#t~ret15#1; [2024-11-16 09:03:41,029 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L10440: havoc calculate_output7_#t~ret20#1; [2024-11-16 09:03:41,029 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L8922: havoc calculate_output6_#t~ret19#1; [2024-11-16 09:03:41,030 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6035: havoc calculate_output4_#t~ret17#1; [2024-11-16 09:03:41,030 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1543: havoc calculate_output_#t~ret14#1; [2024-11-16 09:03:41,317 INFO L? ?]: Removed 1701 outVars from TransFormulas that were not future-live. [2024-11-16 09:03:41,317 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 09:03:41,380 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 09:03:41,381 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 09:03:41,381 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:03:41 BoogieIcfgContainer [2024-11-16 09:03:41,381 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 09:03:41,383 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 09:03:41,383 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 09:03:41,386 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 09:03:41,387 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 09:03:29" (1/3) ... [2024-11-16 09:03:41,387 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79f733a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:03:41, skipping insertion in model container [2024-11-16 09:03:41,387 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:03:32" (2/3) ... [2024-11-16 09:03:41,388 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79f733a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:03:41, skipping insertion in model container [2024-11-16 09:03:41,388 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:03:41" (3/3) ... [2024-11-16 09:03:41,389 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label40+token_ring.03.cil-2.c [2024-11-16 09:03:41,407 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 09:03:41,408 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 09:03:41,535 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 09:03:41,542 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;@13f607af, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 09:03:41,542 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-16 09:03:41,554 INFO L276 IsEmpty]: Start isEmpty. Operand has 2371 states, 2345 states have (on average 1.8443496801705757) internal successors, (4325), 2348 states have internal predecessors, (4325), 17 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-16 09:03:41,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-16 09:03:41,568 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:03:41,569 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] [2024-11-16 09:03:41,569 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:03:41,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:03:41,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1663287854, now seen corresponding path program 1 times [2024-11-16 09:03:41,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:03:41,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843318079] [2024-11-16 09:03:41,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:03:41,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:03:41,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:42,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:03:42,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:42,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 09:03:42,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:42,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 09:03:42,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:42,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:03:42,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:42,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 09:03:42,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:42,142 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 09:03:42,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:03:42,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843318079] [2024-11-16 09:03:42,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843318079] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:03:42,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:03:42,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:03:42,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903723383] [2024-11-16 09:03:42,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:03:42,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:03:42,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:03:42,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:03:42,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:03:42,179 INFO L87 Difference]: Start difference. First operand has 2371 states, 2345 states have (on average 1.8443496801705757) internal successors, (4325), 2348 states have internal predecessors, (4325), 17 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 4 states have internal predecessors, (74), 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 09:03:43,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:03:43,327 INFO L93 Difference]: Finished difference Result 4978 states and 9091 transitions. [2024-11-16 09:03:43,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 09:03:43,330 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 4 states have internal predecessors, (74), 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 84 [2024-11-16 09:03:43,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:03:43,362 INFO L225 Difference]: With dead ends: 4978 [2024-11-16 09:03:43,362 INFO L226 Difference]: Without dead ends: 2546 [2024-11-16 09:03:43,373 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:03:43,378 INFO L432 NwaCegarLoop]: 4188 mSDtfsCounter, 4576 mSDsluCounter, 12569 mSDsCounter, 0 mSdLazyCounter, 754 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4586 SdHoareTripleChecker+Valid, 16757 SdHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:03:43,379 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4586 Valid, 16757 Invalid, 826 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [72 Valid, 754 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 09:03:43,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2546 states. [2024-11-16 09:03:43,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2546 to 2460. [2024-11-16 09:03:43,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2460 states, 2416 states have (on average 1.8137417218543046) internal successors, (4382), 2419 states have internal predecessors, (4382), 29 states have call successors, (29), 12 states have call predecessors, (29), 13 states have return successors, (32), 29 states have call predecessors, (32), 29 states have call successors, (32) [2024-11-16 09:03:43,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2460 states to 2460 states and 4443 transitions. [2024-11-16 09:03:43,538 INFO L78 Accepts]: Start accepts. Automaton has 2460 states and 4443 transitions. Word has length 84 [2024-11-16 09:03:43,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:03:43,539 INFO L471 AbstractCegarLoop]: Abstraction has 2460 states and 4443 transitions. [2024-11-16 09:03:43,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 4 states have internal predecessors, (74), 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 09:03:43,539 INFO L276 IsEmpty]: Start isEmpty. Operand 2460 states and 4443 transitions. [2024-11-16 09:03:43,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-16 09:03:43,546 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:03:43,546 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] [2024-11-16 09:03:43,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 09:03:43,546 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:03:43,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:03:43,547 INFO L85 PathProgramCache]: Analyzing trace with hash 607412908, now seen corresponding path program 1 times [2024-11-16 09:03:43,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:03:43,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016903597] [2024-11-16 09:03:43,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:03:43,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:03:43,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:43,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:03:43,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:43,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 09:03:43,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:43,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 09:03:43,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:43,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:03:43,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:43,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 09:03:43,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:43,747 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 09:03:43,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:03:43,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016903597] [2024-11-16 09:03:43,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016903597] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:03:43,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:03:43,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:03:43,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693230862] [2024-11-16 09:03:43,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:03:43,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:03:43,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:03:43,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:03:43,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:03:43,751 INFO L87 Difference]: Start difference. First operand 2460 states and 4443 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 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 09:03:44,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:03:44,481 INFO L93 Difference]: Finished difference Result 2875 states and 5061 transitions. [2024-11-16 09:03:44,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:03:44,482 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 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 84 [2024-11-16 09:03:44,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:03:44,493 INFO L225 Difference]: With dead ends: 2875 [2024-11-16 09:03:44,494 INFO L226 Difference]: Without dead ends: 2549 [2024-11-16 09:03:44,495 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:03:44,497 INFO L432 NwaCegarLoop]: 4102 mSDtfsCounter, 4378 mSDsluCounter, 16286 mSDsCounter, 0 mSdLazyCounter, 633 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4389 SdHoareTripleChecker+Valid, 20388 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:03:44,497 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4389 Valid, 20388 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 633 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 09:03:44,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2549 states. [2024-11-16 09:03:44,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2549 to 2460. [2024-11-16 09:03:44,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2460 states, 2416 states have (on average 1.8129139072847682) internal successors, (4380), 2419 states have internal predecessors, (4380), 29 states have call successors, (29), 12 states have call predecessors, (29), 13 states have return successors, (32), 29 states have call predecessors, (32), 29 states have call successors, (32) [2024-11-16 09:03:44,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2460 states to 2460 states and 4441 transitions. [2024-11-16 09:03:44,650 INFO L78 Accepts]: Start accepts. Automaton has 2460 states and 4441 transitions. Word has length 84 [2024-11-16 09:03:44,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:03:44,650 INFO L471 AbstractCegarLoop]: Abstraction has 2460 states and 4441 transitions. [2024-11-16 09:03:44,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 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 09:03:44,650 INFO L276 IsEmpty]: Start isEmpty. Operand 2460 states and 4441 transitions. [2024-11-16 09:03:44,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-16 09:03:44,653 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:03:44,654 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] [2024-11-16 09:03:44,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 09:03:44,654 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:03:44,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:03:44,655 INFO L85 PathProgramCache]: Analyzing trace with hash 361099821, now seen corresponding path program 1 times [2024-11-16 09:03:44,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:03:44,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189303270] [2024-11-16 09:03:44,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:03:44,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:03:44,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:44,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:03:44,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:44,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 09:03:44,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:44,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 09:03:44,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:44,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:03:44,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:44,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 09:03:44,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:44,871 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 09:03:44,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:03:44,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189303270] [2024-11-16 09:03:44,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189303270] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:03:44,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:03:44,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:03:44,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734462926] [2024-11-16 09:03:44,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:03:44,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:03:44,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:03:44,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:03:44,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:03:44,877 INFO L87 Difference]: Start difference. First operand 2460 states and 4441 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 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 09:03:46,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:03:46,219 INFO L93 Difference]: Finished difference Result 3076 states and 5344 transitions. [2024-11-16 09:03:46,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:03:46,220 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 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 84 [2024-11-16 09:03:46,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:03:46,232 INFO L225 Difference]: With dead ends: 3076 [2024-11-16 09:03:46,232 INFO L226 Difference]: Without dead ends: 2750 [2024-11-16 09:03:46,234 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:03:46,235 INFO L432 NwaCegarLoop]: 4232 mSDtfsCounter, 4510 mSDsluCounter, 16761 mSDsCounter, 0 mSdLazyCounter, 1190 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4520 SdHoareTripleChecker+Valid, 20993 SdHoareTripleChecker+Invalid, 1234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 09:03:46,235 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4520 Valid, 20993 Invalid, 1234 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [44 Valid, 1190 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 09:03:46,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2750 states. [2024-11-16 09:03:46,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2750 to 2615. [2024-11-16 09:03:46,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2615 states, 2552 states have (on average 1.7911442006269593) internal successors, (4571), 2556 states have internal predecessors, (4571), 41 states have call successors, (41), 18 states have call predecessors, (41), 20 states have return successors, (46), 42 states have call predecessors, (46), 41 states have call successors, (46) [2024-11-16 09:03:46,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2615 states to 2615 states and 4658 transitions. [2024-11-16 09:03:46,345 INFO L78 Accepts]: Start accepts. Automaton has 2615 states and 4658 transitions. Word has length 84 [2024-11-16 09:03:46,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:03:46,346 INFO L471 AbstractCegarLoop]: Abstraction has 2615 states and 4658 transitions. [2024-11-16 09:03:46,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 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 09:03:46,346 INFO L276 IsEmpty]: Start isEmpty. Operand 2615 states and 4658 transitions. [2024-11-16 09:03:46,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-16 09:03:46,348 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:03:46,348 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] [2024-11-16 09:03:46,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 09:03:46,349 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:03:46,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:03:46,349 INFO L85 PathProgramCache]: Analyzing trace with hash -246977042, now seen corresponding path program 1 times [2024-11-16 09:03:46,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:03:46,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290677901] [2024-11-16 09:03:46,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:03:46,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:03:46,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:46,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:03:46,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:46,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 09:03:46,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:46,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 09:03:46,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:46,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:03:46,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:46,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 09:03:46,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:46,507 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 09:03:46,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:03:46,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290677901] [2024-11-16 09:03:46,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290677901] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:03:46,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:03:46,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:03:46,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361612639] [2024-11-16 09:03:46,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:03:46,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:03:46,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:03:46,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:03:46,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:03:46,511 INFO L87 Difference]: Start difference. First operand 2615 states and 4658 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 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 09:03:47,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:03:47,848 INFO L93 Difference]: Finished difference Result 3719 states and 6269 transitions. [2024-11-16 09:03:47,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:03:47,848 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 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 84 [2024-11-16 09:03:47,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:03:47,864 INFO L225 Difference]: With dead ends: 3719 [2024-11-16 09:03:47,864 INFO L226 Difference]: Without dead ends: 3238 [2024-11-16 09:03:47,867 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:03:47,868 INFO L432 NwaCegarLoop]: 4228 mSDtfsCounter, 4640 mSDsluCounter, 16753 mSDsCounter, 0 mSdLazyCounter, 1158 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4654 SdHoareTripleChecker+Valid, 20981 SdHoareTripleChecker+Invalid, 1207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 09:03:47,869 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4654 Valid, 20981 Invalid, 1207 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [49 Valid, 1158 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 09:03:47,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3238 states. [2024-11-16 09:03:47,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3238 to 2922. [2024-11-16 09:03:47,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2922 states, 2823 states have (on average 1.75487070492384) internal successors, (4954), 2829 states have internal predecessors, (4954), 63 states have call successors, (63), 30 states have call predecessors, (63), 34 states have return successors, (76), 66 states have call predecessors, (76), 63 states have call successors, (76) [2024-11-16 09:03:47,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2922 states to 2922 states and 5093 transitions. [2024-11-16 09:03:47,996 INFO L78 Accepts]: Start accepts. Automaton has 2922 states and 5093 transitions. Word has length 84 [2024-11-16 09:03:47,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:03:47,997 INFO L471 AbstractCegarLoop]: Abstraction has 2922 states and 5093 transitions. [2024-11-16 09:03:47,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 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 09:03:47,998 INFO L276 IsEmpty]: Start isEmpty. Operand 2922 states and 5093 transitions. [2024-11-16 09:03:47,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-16 09:03:48,002 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:03:48,002 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] [2024-11-16 09:03:48,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 09:03:48,003 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:03:48,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:03:48,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1534522893, now seen corresponding path program 1 times [2024-11-16 09:03:48,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:03:48,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583634098] [2024-11-16 09:03:48,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:03:48,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:03:48,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:48,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:03:48,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:48,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 09:03:48,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:48,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 09:03:48,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:48,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:03:48,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:48,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 09:03:48,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:48,242 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 09:03:48,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:03:48,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583634098] [2024-11-16 09:03:48,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583634098] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:03:48,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:03:48,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:03:48,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790332268] [2024-11-16 09:03:48,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:03:48,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:03:48,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:03:48,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:03:48,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:03:48,245 INFO L87 Difference]: Start difference. First operand 2922 states and 5093 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 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 09:03:48,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:03:48,888 INFO L93 Difference]: Finished difference Result 3907 states and 6534 transitions. [2024-11-16 09:03:48,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:03:48,889 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 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 84 [2024-11-16 09:03:48,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:03:48,902 INFO L225 Difference]: With dead ends: 3907 [2024-11-16 09:03:48,902 INFO L226 Difference]: Without dead ends: 3119 [2024-11-16 09:03:48,904 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:03:48,905 INFO L432 NwaCegarLoop]: 4101 mSDtfsCounter, 4376 mSDsluCounter, 16284 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4387 SdHoareTripleChecker+Valid, 20385 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:03:48,906 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4387 Valid, 20385 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 09:03:48,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3119 states. [2024-11-16 09:03:48,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3119 to 2922. [2024-11-16 09:03:48,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2922 states, 2823 states have (on average 1.753099539496989) internal successors, (4949), 2829 states have internal predecessors, (4949), 63 states have call successors, (63), 30 states have call predecessors, (63), 34 states have return successors, (76), 66 states have call predecessors, (76), 63 states have call successors, (76) [2024-11-16 09:03:48,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2922 states to 2922 states and 5088 transitions. [2024-11-16 09:03:48,995 INFO L78 Accepts]: Start accepts. Automaton has 2922 states and 5088 transitions. Word has length 84 [2024-11-16 09:03:48,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:03:48,995 INFO L471 AbstractCegarLoop]: Abstraction has 2922 states and 5088 transitions. [2024-11-16 09:03:48,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 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 09:03:48,996 INFO L276 IsEmpty]: Start isEmpty. Operand 2922 states and 5088 transitions. [2024-11-16 09:03:48,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-16 09:03:48,997 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:03:48,997 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] [2024-11-16 09:03:48,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 09:03:48,998 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:03:48,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:03:48,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1456050674, now seen corresponding path program 1 times [2024-11-16 09:03:48,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:03:48,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223286211] [2024-11-16 09:03:48,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:03:48,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:03:49,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:49,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:03:49,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:49,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 09:03:49,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:49,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 09:03:49,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:49,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:03:49,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:49,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 09:03:49,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:49,126 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 09:03:49,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:03:49,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223286211] [2024-11-16 09:03:49,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223286211] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:03:49,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:03:49,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:03:49,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810820537] [2024-11-16 09:03:49,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:03:49,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:03:49,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:03:49,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:03:49,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:03:49,129 INFO L87 Difference]: Start difference. First operand 2922 states and 5088 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 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 09:03:50,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:03:50,131 INFO L93 Difference]: Finished difference Result 4758 states and 7728 transitions. [2024-11-16 09:03:50,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:03:50,131 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 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 84 [2024-11-16 09:03:50,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:03:50,148 INFO L225 Difference]: With dead ends: 4758 [2024-11-16 09:03:50,148 INFO L226 Difference]: Without dead ends: 3970 [2024-11-16 09:03:50,151 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:03:50,152 INFO L432 NwaCegarLoop]: 4228 mSDtfsCounter, 4554 mSDsluCounter, 16753 mSDsCounter, 0 mSdLazyCounter, 1120 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4568 SdHoareTripleChecker+Valid, 20981 SdHoareTripleChecker+Invalid, 1169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 09:03:50,153 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4568 Valid, 20981 Invalid, 1169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1120 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 09:03:50,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3970 states. [2024-11-16 09:03:50,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3970 to 3538. [2024-11-16 09:03:50,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3538 states, 3369 states have (on average 1.696942712971208) internal successors, (5717), 3379 states have internal predecessors, (5717), 105 states have call successors, (105), 54 states have call predecessors, (105), 62 states have return successors, (140), 112 states have call predecessors, (140), 105 states have call successors, (140) [2024-11-16 09:03:50,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3538 states to 3538 states and 5962 transitions. [2024-11-16 09:03:50,274 INFO L78 Accepts]: Start accepts. Automaton has 3538 states and 5962 transitions. Word has length 84 [2024-11-16 09:03:50,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:03:50,275 INFO L471 AbstractCegarLoop]: Abstraction has 3538 states and 5962 transitions. [2024-11-16 09:03:50,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 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 09:03:50,275 INFO L276 IsEmpty]: Start isEmpty. Operand 3538 states and 5962 transitions. [2024-11-16 09:03:50,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-16 09:03:50,277 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:03:50,278 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] [2024-11-16 09:03:50,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 09:03:50,278 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:03:50,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:03:50,279 INFO L85 PathProgramCache]: Analyzing trace with hash 664236525, now seen corresponding path program 1 times [2024-11-16 09:03:50,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:03:50,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095624742] [2024-11-16 09:03:50,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:03:50,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:03:50,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:50,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:03:50,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:50,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 09:03:50,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:50,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 09:03:50,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:50,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:03:50,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:50,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 09:03:50,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:50,403 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 09:03:50,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:03:50,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095624742] [2024-11-16 09:03:50,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095624742] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:03:50,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:03:50,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:03:50,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140602674] [2024-11-16 09:03:50,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:03:50,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:03:50,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:03:50,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:03:50,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:03:50,406 INFO L87 Difference]: Start difference. First operand 3538 states and 5962 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 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 09:03:51,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:03:51,022 INFO L93 Difference]: Finished difference Result 5247 states and 8435 transitions. [2024-11-16 09:03:51,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:03:51,023 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 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 84 [2024-11-16 09:03:51,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:03:51,039 INFO L225 Difference]: With dead ends: 5247 [2024-11-16 09:03:51,039 INFO L226 Difference]: Without dead ends: 3843 [2024-11-16 09:03:51,047 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:03:51,048 INFO L432 NwaCegarLoop]: 4101 mSDtfsCounter, 4372 mSDsluCounter, 16284 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4383 SdHoareTripleChecker+Valid, 20385 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 09:03:51,050 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4383 Valid, 20385 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 555 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 09:03:51,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3843 states. [2024-11-16 09:03:51,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3843 to 3538. [2024-11-16 09:03:51,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3538 states, 3369 states have (on average 1.6942712971208074) internal successors, (5708), 3379 states have internal predecessors, (5708), 105 states have call successors, (105), 54 states have call predecessors, (105), 62 states have return successors, (140), 112 states have call predecessors, (140), 105 states have call successors, (140) [2024-11-16 09:03:51,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3538 states to 3538 states and 5953 transitions. [2024-11-16 09:03:51,173 INFO L78 Accepts]: Start accepts. Automaton has 3538 states and 5953 transitions. Word has length 84 [2024-11-16 09:03:51,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:03:51,173 INFO L471 AbstractCegarLoop]: Abstraction has 3538 states and 5953 transitions. [2024-11-16 09:03:51,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 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 09:03:51,174 INFO L276 IsEmpty]: Start isEmpty. Operand 3538 states and 5953 transitions. [2024-11-16 09:03:51,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-16 09:03:51,176 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:03:51,176 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] [2024-11-16 09:03:51,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 09:03:51,177 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:03:51,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:03:51,177 INFO L85 PathProgramCache]: Analyzing trace with hash 455538222, now seen corresponding path program 1 times [2024-11-16 09:03:51,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:03:51,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375339533] [2024-11-16 09:03:51,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:03:51,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:03:51,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:51,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:03:51,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:51,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 09:03:51,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:51,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 09:03:51,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:51,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:03:51,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:51,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 09:03:51,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:51,323 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 09:03:51,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:03:51,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375339533] [2024-11-16 09:03:51,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375339533] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:03:51,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:03:51,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:03:51,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591275143] [2024-11-16 09:03:51,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:03:51,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:03:51,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:03:51,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:03:51,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:03:51,326 INFO L87 Difference]: Start difference. First operand 3538 states and 5953 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 4 states have internal predecessors, (74), 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 09:03:52,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:03:52,298 INFO L93 Difference]: Finished difference Result 6856 states and 10696 transitions. [2024-11-16 09:03:52,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 09:03:52,298 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 4 states have internal predecessors, (74), 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 84 [2024-11-16 09:03:52,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:03:52,323 INFO L225 Difference]: With dead ends: 6856 [2024-11-16 09:03:52,323 INFO L226 Difference]: Without dead ends: 5453 [2024-11-16 09:03:52,331 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-16 09:03:52,332 INFO L432 NwaCegarLoop]: 4256 mSDtfsCounter, 4683 mSDsluCounter, 12457 mSDsCounter, 0 mSdLazyCounter, 966 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4711 SdHoareTripleChecker+Valid, 16713 SdHoareTripleChecker+Invalid, 1037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 966 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 09:03:52,333 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4711 Valid, 16713 Invalid, 1037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 966 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 09:03:52,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5453 states. [2024-11-16 09:03:52,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5453 to 4874. [2024-11-16 09:03:52,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4874 states, 4542 states have (on average 1.6125055041831793) internal successors, (7324), 4569 states have internal predecessors, (7324), 206 states have call successors, (206), 108 states have call predecessors, (206), 124 states have return successors, (269), 204 states have call predecessors, (269), 206 states have call successors, (269) [2024-11-16 09:03:52,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4874 states to 4874 states and 7799 transitions. [2024-11-16 09:03:52,524 INFO L78 Accepts]: Start accepts. Automaton has 4874 states and 7799 transitions. Word has length 84 [2024-11-16 09:03:52,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:03:52,525 INFO L471 AbstractCegarLoop]: Abstraction has 4874 states and 7799 transitions. [2024-11-16 09:03:52,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 4 states have internal predecessors, (74), 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 09:03:52,525 INFO L276 IsEmpty]: Start isEmpty. Operand 4874 states and 7799 transitions. [2024-11-16 09:03:52,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-16 09:03:52,530 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:03:52,531 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:03:52,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 09:03:52,531 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:03:52,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:03:52,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1244183657, now seen corresponding path program 1 times [2024-11-16 09:03:52,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:03:52,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660993651] [2024-11-16 09:03:52,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:03:52,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:03:52,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:52,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:03:52,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:52,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 09:03:52,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:52,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 09:03:52,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:52,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:03:52,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:52,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 09:03:52,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:52,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 09:03:52,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:52,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:03:52,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:52,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:03:52,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:52,698 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-16 09:03:52,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:03:52,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660993651] [2024-11-16 09:03:52,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660993651] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:03:52,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [525538588] [2024-11-16 09:03:52,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:03:52,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:03:52,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:03:52,705 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:03:52,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 09:03:52,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:52,830 INFO L255 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 09:03:52,836 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:03:52,910 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-16 09:03:52,910 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:03:52,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [525538588] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:03:52,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:03:52,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2024-11-16 09:03:52,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210033995] [2024-11-16 09:03:52,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:03:52,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:03:52,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:03:52,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:03:52,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:03:52,913 INFO L87 Difference]: Start difference. First operand 4874 states and 7799 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:03:53,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:03:53,192 INFO L93 Difference]: Finished difference Result 10243 states and 15363 transitions. [2024-11-16 09:03:53,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:03:53,193 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 139 [2024-11-16 09:03:53,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:03:53,221 INFO L225 Difference]: With dead ends: 10243 [2024-11-16 09:03:53,221 INFO L226 Difference]: Without dead ends: 7504 [2024-11-16 09:03:53,231 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:03:53,232 INFO L432 NwaCegarLoop]: 4243 mSDtfsCounter, 4156 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4156 SdHoareTripleChecker+Valid, 4460 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:03:53,232 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4156 Valid, 4460 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:03:53,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7504 states. [2024-11-16 09:03:53,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7504 to 7429. [2024-11-16 09:03:53,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7429 states, 6789 states have (on average 1.5402857563705994) internal successors, (10457), 6841 states have internal predecessors, (10457), 390 states have call successors, (390), 216 states have call predecessors, (390), 248 states have return successors, (509), 379 states have call predecessors, (509), 390 states have call successors, (509) [2024-11-16 09:03:53,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7429 states to 7429 states and 11356 transitions. [2024-11-16 09:03:53,615 INFO L78 Accepts]: Start accepts. Automaton has 7429 states and 11356 transitions. Word has length 139 [2024-11-16 09:03:53,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:03:53,616 INFO L471 AbstractCegarLoop]: Abstraction has 7429 states and 11356 transitions. [2024-11-16 09:03:53,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:03:53,616 INFO L276 IsEmpty]: Start isEmpty. Operand 7429 states and 11356 transitions. [2024-11-16 09:03:53,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-16 09:03:53,624 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:03:53,624 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:03:53,643 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-16 09:03:53,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:03:53,825 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:03:53,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:03:53,826 INFO L85 PathProgramCache]: Analyzing trace with hash 276746351, now seen corresponding path program 1 times [2024-11-16 09:03:53,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:03:53,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482420462] [2024-11-16 09:03:53,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:03:53,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:03:53,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:53,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:03:53,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:53,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 09:03:53,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:53,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 09:03:53,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:53,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:03:53,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:53,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 09:03:53,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:53,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 09:03:53,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:53,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:03:53,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:53,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:03:53,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:53,965 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-16 09:03:53,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:03:53,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482420462] [2024-11-16 09:03:53,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482420462] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:03:53,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1489273932] [2024-11-16 09:03:53,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:03:53,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:03:53,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:03:53,968 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:03:53,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 09:03:54,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:54,077 INFO L255 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 09:03:54,081 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:03:54,144 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-16 09:03:54,144 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:03:54,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1489273932] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:03:54,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:03:54,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2024-11-16 09:03:54,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141032212] [2024-11-16 09:03:54,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:03:54,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:03:54,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:03:54,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:03:54,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:03:54,146 INFO L87 Difference]: Start difference. First operand 7429 states and 11356 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:03:54,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:03:54,585 INFO L93 Difference]: Finished difference Result 17848 states and 26028 transitions. [2024-11-16 09:03:54,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:03:54,586 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 139 [2024-11-16 09:03:54,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:03:54,646 INFO L225 Difference]: With dead ends: 17848 [2024-11-16 09:03:54,646 INFO L226 Difference]: Without dead ends: 12554 [2024-11-16 09:03:54,665 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:03:54,666 INFO L432 NwaCegarLoop]: 4201 mSDtfsCounter, 4150 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4150 SdHoareTripleChecker+Valid, 4418 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:03:54,667 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4150 Valid, 4418 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:03:54,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12554 states. [2024-11-16 09:03:55,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12554 to 12407. [2024-11-16 09:03:55,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12407 states, 11153 states have (on average 1.4829193938850533) internal successors, (16539), 11255 states have internal predecessors, (16539), 756 states have call successors, (756), 432 states have call predecessors, (756), 496 states have return successors, (987), 727 states have call predecessors, (987), 756 states have call successors, (987) [2024-11-16 09:03:55,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12407 states to 12407 states and 18282 transitions. [2024-11-16 09:03:55,571 INFO L78 Accepts]: Start accepts. Automaton has 12407 states and 18282 transitions. Word has length 139 [2024-11-16 09:03:55,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:03:55,571 INFO L471 AbstractCegarLoop]: Abstraction has 12407 states and 18282 transitions. [2024-11-16 09:03:55,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:03:55,571 INFO L276 IsEmpty]: Start isEmpty. Operand 12407 states and 18282 transitions. [2024-11-16 09:03:55,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-16 09:03:55,586 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:03:55,586 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:03:55,604 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 09:03:55,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-16 09:03:55,787 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:03:55,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:03:55,788 INFO L85 PathProgramCache]: Analyzing trace with hash -2049056523, now seen corresponding path program 1 times [2024-11-16 09:03:55,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:03:55,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936080283] [2024-11-16 09:03:55,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:03:55,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:03:55,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:55,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:03:55,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:55,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 09:03:55,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:55,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 09:03:55,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:55,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:03:55,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:55,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 09:03:55,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:55,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 09:03:55,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:55,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:03:55,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:55,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:03:55,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:55,956 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-16 09:03:55,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:03:55,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936080283] [2024-11-16 09:03:55,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936080283] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:03:55,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [136132007] [2024-11-16 09:03:55,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:03:55,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:03:55,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:03:55,959 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:03:55,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 09:03:56,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:56,084 INFO L255 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 09:03:56,092 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:03:56,157 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-16 09:03:56,157 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:03:56,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [136132007] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:03:56,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:03:56,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2024-11-16 09:03:56,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585228654] [2024-11-16 09:03:56,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:03:56,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:03:56,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:03:56,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:03:56,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:03:56,160 INFO L87 Difference]: Start difference. First operand 12407 states and 18282 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 2 states have internal predecessors, (95), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:03:56,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:03:56,927 INFO L93 Difference]: Finished difference Result 32614 states and 46712 transitions. [2024-11-16 09:03:56,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:03:56,928 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 2 states have internal predecessors, (95), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 139 [2024-11-16 09:03:56,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:03:56,999 INFO L225 Difference]: With dead ends: 32614 [2024-11-16 09:03:56,999 INFO L226 Difference]: Without dead ends: 22342 [2024-11-16 09:03:57,032 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:03:57,033 INFO L432 NwaCegarLoop]: 4243 mSDtfsCounter, 4162 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4162 SdHoareTripleChecker+Valid, 4460 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:03:57,034 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4162 Valid, 4460 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:03:57,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22342 states. [2024-11-16 09:03:58,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22342 to 22051. [2024-11-16 09:03:58,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22051 states, 19589 states have (on average 1.4448414926744602) internal successors, (28303), 19791 states have internal predecessors, (28303), 1468 states have call successors, (1468), 864 states have call predecessors, (1468), 992 states have return successors, (1923), 1403 states have call predecessors, (1923), 1468 states have call successors, (1923) [2024-11-16 09:03:58,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22051 states to 22051 states and 31694 transitions. [2024-11-16 09:03:58,131 INFO L78 Accepts]: Start accepts. Automaton has 22051 states and 31694 transitions. Word has length 139 [2024-11-16 09:03:58,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:03:58,134 INFO L471 AbstractCegarLoop]: Abstraction has 22051 states and 31694 transitions. [2024-11-16 09:03:58,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 2 states have internal predecessors, (95), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:03:58,134 INFO L276 IsEmpty]: Start isEmpty. Operand 22051 states and 31694 transitions. [2024-11-16 09:03:58,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-16 09:03:58,155 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:03:58,155 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:03:58,173 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-16 09:03:58,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:03:58,356 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:03:58,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:03:58,357 INFO L85 PathProgramCache]: Analyzing trace with hash -306554757, now seen corresponding path program 1 times [2024-11-16 09:03:58,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:03:58,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869972470] [2024-11-16 09:03:58,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:03:58,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:03:58,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:58,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:03:58,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:58,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 09:03:58,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:58,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 09:03:58,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:58,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:03:58,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:58,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 09:03:58,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:58,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 09:03:58,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:58,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:03:58,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:58,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:03:58,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:58,496 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-16 09:03:58,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:03:58,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869972470] [2024-11-16 09:03:58,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869972470] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:03:58,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [818031458] [2024-11-16 09:03:58,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:03:58,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:03:58,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:03:58,499 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:03:58,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-16 09:03:58,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:03:58,601 INFO L255 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 09:03:58,604 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:03:58,640 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-16 09:03:58,641 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:03:58,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [818031458] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:03:58,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:03:58,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-16 09:03:58,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851710777] [2024-11-16 09:03:58,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:03:58,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:03:58,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:03:58,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:03:58,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:03:58,643 INFO L87 Difference]: Start difference. First operand 22051 states and 31694 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 09:04:00,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:04:00,058 INFO L93 Difference]: Finished difference Result 60259 states and 85917 transitions. [2024-11-16 09:04:00,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:04:00,059 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 139 [2024-11-16 09:04:00,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:04:00,338 INFO L225 Difference]: With dead ends: 60259 [2024-11-16 09:04:00,339 INFO L226 Difference]: Without dead ends: 40344 [2024-11-16 09:04:00,391 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:04:00,392 INFO L432 NwaCegarLoop]: 4413 mSDtfsCounter, 205 mSDsluCounter, 4199 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 8612 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:04:00,392 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 8612 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:04:00,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40344 states. [2024-11-16 09:04:02,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40344 to 40344. [2024-11-16 09:04:02,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40344 states, 35643 states have (on average 1.4212047246303623) internal successors, (50656), 35974 states have internal predecessors, (50656), 2753 states have call successors, (2753), 1690 states have call predecessors, (2753), 1946 states have return successors, (4082), 2695 states have call predecessors, (4082), 2753 states have call successors, (4082) [2024-11-16 09:04:02,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40344 states to 40344 states and 57491 transitions. [2024-11-16 09:04:02,880 INFO L78 Accepts]: Start accepts. Automaton has 40344 states and 57491 transitions. Word has length 139 [2024-11-16 09:04:02,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:04:02,881 INFO L471 AbstractCegarLoop]: Abstraction has 40344 states and 57491 transitions. [2024-11-16 09:04:02,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 09:04:02,882 INFO L276 IsEmpty]: Start isEmpty. Operand 40344 states and 57491 transitions. [2024-11-16 09:04:02,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-16 09:04:02,981 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:04:02,981 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:04:02,998 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-16 09:04:03,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:04:03,186 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:04:03,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:04:03,187 INFO L85 PathProgramCache]: Analyzing trace with hash -410521785, now seen corresponding path program 1 times [2024-11-16 09:04:03,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:04:03,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625692494] [2024-11-16 09:04:03,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:04:03,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:04:03,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:03,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:04:03,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:03,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 09:04:03,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:03,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 09:04:03,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:03,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:04:03,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:03,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 09:04:03,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:03,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-16 09:04:03,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:03,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-16 09:04:03,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:03,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:04:03,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:03,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-16 09:04:03,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:03,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:04:03,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:03,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-11-16 09:04:03,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:03,505 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-16 09:04:03,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:04:03,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625692494] [2024-11-16 09:04:03,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625692494] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:04:03,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1865007669] [2024-11-16 09:04:03,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:04:03,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:04:03,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:04:03,507 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:04:03,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-16 09:04:03,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:03,632 INFO L255 TraceCheckSpWp]: Trace formula consists of 654 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 09:04:03,637 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:04:03,755 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-16 09:04:03,756 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:04:03,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1865007669] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:04:03,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:04:03,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-16 09:04:03,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157028935] [2024-11-16 09:04:03,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:04:03,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:04:03,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:04:03,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:04:03,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:04:03,758 INFO L87 Difference]: Start difference. First operand 40344 states and 57491 transitions. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-16 09:04:05,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:04:05,542 INFO L93 Difference]: Finished difference Result 66805 states and 95235 transitions. [2024-11-16 09:04:05,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:04:05,543 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 204 [2024-11-16 09:04:05,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:04:05,682 INFO L225 Difference]: With dead ends: 66805 [2024-11-16 09:04:05,683 INFO L226 Difference]: Without dead ends: 36680 [2024-11-16 09:04:05,758 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:04:05,760 INFO L432 NwaCegarLoop]: 4198 mSDtfsCounter, 4118 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4118 SdHoareTripleChecker+Valid, 4242 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:04:05,760 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4118 Valid, 4242 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:04:05,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36680 states. [2024-11-16 09:04:07,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36680 to 27868. [2024-11-16 09:04:07,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27868 states, 24743 states have (on average 1.3988602837166066) internal successors, (34612), 24918 states have internal predecessors, (34612), 1809 states have call successors, (1809), 1186 states have call predecessors, (1809), 1314 states have return successors, (2418), 1771 states have call predecessors, (2418), 1809 states have call successors, (2418) [2024-11-16 09:04:07,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27868 states to 27868 states and 38839 transitions. [2024-11-16 09:04:07,670 INFO L78 Accepts]: Start accepts. Automaton has 27868 states and 38839 transitions. Word has length 204 [2024-11-16 09:04:07,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:04:07,671 INFO L471 AbstractCegarLoop]: Abstraction has 27868 states and 38839 transitions. [2024-11-16 09:04:07,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-16 09:04:07,671 INFO L276 IsEmpty]: Start isEmpty. Operand 27868 states and 38839 transitions. [2024-11-16 09:04:07,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-16 09:04:07,705 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:04:07,705 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:04:07,722 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-16 09:04:07,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-16 09:04:07,910 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:04:07,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:04:07,911 INFO L85 PathProgramCache]: Analyzing trace with hash -725471831, now seen corresponding path program 1 times [2024-11-16 09:04:07,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:04:07,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459349847] [2024-11-16 09:04:07,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:04:07,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:04:07,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:07,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:04:07,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:07,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 09:04:07,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:08,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 09:04:08,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:08,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:04:08,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:08,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 09:04:08,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:08,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-16 09:04:08,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:08,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-16 09:04:08,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:08,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:04:08,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:08,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-16 09:04:08,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:08,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:04:08,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:08,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-11-16 09:04:08,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:08,081 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-16 09:04:08,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:04:08,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459349847] [2024-11-16 09:04:08,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459349847] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:04:08,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1207775158] [2024-11-16 09:04:08,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:04:08,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:04:08,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:04:08,084 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:04:08,085 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-16 09:04:08,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:08,212 INFO L255 TraceCheckSpWp]: Trace formula consists of 648 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 09:04:08,215 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:04:08,251 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-16 09:04:08,251 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:04:08,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1207775158] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:04:08,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:04:08,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-16 09:04:08,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976871516] [2024-11-16 09:04:08,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:04:08,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:04:08,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:04:08,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:04:08,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:04:08,253 INFO L87 Difference]: Start difference. First operand 27868 states and 38839 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-16 09:04:09,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:04:09,916 INFO L93 Difference]: Finished difference Result 56227 states and 77785 transitions. [2024-11-16 09:04:09,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:04:09,916 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 204 [2024-11-16 09:04:09,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:04:10,030 INFO L225 Difference]: With dead ends: 56227 [2024-11-16 09:04:10,031 INFO L226 Difference]: Without dead ends: 30502 [2024-11-16 09:04:10,082 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:04:10,083 INFO L432 NwaCegarLoop]: 4205 mSDtfsCounter, 4176 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4176 SdHoareTripleChecker+Valid, 4248 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:04:10,083 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4176 Valid, 4248 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:04:10,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30502 states. [2024-11-16 09:04:12,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30502 to 30502. [2024-11-16 09:04:12,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30502 states, 27173 states have (on average 1.3689323961285098) internal successors, (37198), 27348 states have internal predecessors, (37198), 1867 states have call successors, (1867), 1332 states have call predecessors, (1867), 1460 states have return successors, (2476), 1829 states have call predecessors, (2476), 1867 states have call successors, (2476) [2024-11-16 09:04:12,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30502 states to 30502 states and 41541 transitions. [2024-11-16 09:04:12,376 INFO L78 Accepts]: Start accepts. Automaton has 30502 states and 41541 transitions. Word has length 204 [2024-11-16 09:04:12,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:04:12,377 INFO L471 AbstractCegarLoop]: Abstraction has 30502 states and 41541 transitions. [2024-11-16 09:04:12,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-16 09:04:12,377 INFO L276 IsEmpty]: Start isEmpty. Operand 30502 states and 41541 transitions. [2024-11-16 09:04:12,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-16 09:04:12,413 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:04:12,413 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:04:12,431 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-16 09:04:12,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:04:12,615 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:04:12,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:04:12,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1706830419, now seen corresponding path program 1 times [2024-11-16 09:04:12,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:04:12,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554249432] [2024-11-16 09:04:12,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:04:12,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:04:12,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:12,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:04:12,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:12,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 09:04:12,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:12,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 09:04:12,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:12,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:04:12,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:12,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 09:04:12,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:12,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-16 09:04:12,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:12,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-16 09:04:12,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:12,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:04:12,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:12,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-16 09:04:12,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:12,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:04:12,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:12,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-11-16 09:04:12,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:12,776 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-11-16 09:04:12,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:04:12,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554249432] [2024-11-16 09:04:12,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554249432] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:04:12,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [480756166] [2024-11-16 09:04:12,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:04:12,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:04:12,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:04:12,778 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:04:12,780 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-16 09:04:12,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:12,909 INFO L255 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 09:04:12,912 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:04:12,978 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-16 09:04:12,979 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:04:12,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [480756166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:04:12,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:04:12,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-16 09:04:12,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049811000] [2024-11-16 09:04:12,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:04:12,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:04:12,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:04:12,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:04:12,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:04:12,981 INFO L87 Difference]: Start difference. First operand 30502 states and 41541 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-16 09:04:14,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:04:14,574 INFO L93 Difference]: Finished difference Result 54582 states and 73241 transitions. [2024-11-16 09:04:14,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:04:14,574 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 204 [2024-11-16 09:04:14,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:04:14,667 INFO L225 Difference]: With dead ends: 54582 [2024-11-16 09:04:14,667 INFO L226 Difference]: Without dead ends: 32346 [2024-11-16 09:04:14,703 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:04:14,704 INFO L432 NwaCegarLoop]: 4258 mSDtfsCounter, 4127 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4127 SdHoareTripleChecker+Valid, 4482 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:04:14,704 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4127 Valid, 4482 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:04:14,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32346 states. [2024-11-16 09:04:16,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32346 to 30238. [2024-11-16 09:04:16,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30238 states, 26909 states have (on average 1.3562005277044855) internal successors, (36494), 27084 states have internal predecessors, (36494), 1867 states have call successors, (1867), 1332 states have call predecessors, (1867), 1460 states have return successors, (2476), 1829 states have call predecessors, (2476), 1867 states have call successors, (2476) [2024-11-16 09:04:16,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30238 states to 30238 states and 40837 transitions. [2024-11-16 09:04:16,807 INFO L78 Accepts]: Start accepts. Automaton has 30238 states and 40837 transitions. Word has length 204 [2024-11-16 09:04:16,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:04:16,808 INFO L471 AbstractCegarLoop]: Abstraction has 30238 states and 40837 transitions. [2024-11-16 09:04:16,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-16 09:04:16,808 INFO L276 IsEmpty]: Start isEmpty. Operand 30238 states and 40837 transitions. [2024-11-16 09:04:16,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-16 09:04:16,843 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:04:16,843 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:04:16,860 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-16 09:04:17,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:04:17,044 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:04:17,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:04:17,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1774434318, now seen corresponding path program 1 times [2024-11-16 09:04:17,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:04:17,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808636504] [2024-11-16 09:04:17,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:04:17,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:04:17,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:17,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:04:17,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:17,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 09:04:17,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:17,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 09:04:17,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:17,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:04:17,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:17,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 09:04:17,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:17,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 09:04:17,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:17,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:04:17,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:17,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 09:04:17,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:17,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-16 09:04:17,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:17,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:04:17,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:17,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-11-16 09:04:17,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:17,208 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-16 09:04:17,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:04:17,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808636504] [2024-11-16 09:04:17,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808636504] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:04:17,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2014435622] [2024-11-16 09:04:17,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:04:17,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:04:17,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:04:17,211 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:04:17,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-16 09:04:17,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:17,336 INFO L255 TraceCheckSpWp]: Trace formula consists of 640 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 09:04:17,339 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:04:17,367 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-16 09:04:17,368 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:04:17,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2014435622] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:04:17,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:04:17,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-16 09:04:17,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059006558] [2024-11-16 09:04:17,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:04:17,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:04:17,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:04:17,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:04:17,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:04:17,374 INFO L87 Difference]: Start difference. First operand 30238 states and 40837 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-16 09:04:20,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:04:20,156 INFO L93 Difference]: Finished difference Result 85044 states and 113863 transitions. [2024-11-16 09:04:20,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:04:20,157 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 205 [2024-11-16 09:04:20,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:04:20,580 INFO L225 Difference]: With dead ends: 85044 [2024-11-16 09:04:20,580 INFO L226 Difference]: Without dead ends: 56949 [2024-11-16 09:04:20,634 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:04:20,635 INFO L432 NwaCegarLoop]: 4405 mSDtfsCounter, 202 mSDsluCounter, 4192 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 8597 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:04:20,635 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 8597 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:04:20,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56949 states.