./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label42+token_ring.13.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/Problem05_label42+token_ring.13.cil-2.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 216404335c43b82447a03ad9d88ac8bc18e7528b04f40169d87fb26955d8753c --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 05:17:23,844 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 05:17:23,891 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 05:17:23,895 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 05:17:23,895 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 05:17:23,914 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 05:17:23,915 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 05:17:23,915 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 05:17:23,915 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 05:17:23,916 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 05:17:23,916 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 05:17:23,916 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 05:17:23,916 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 05:17:23,916 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 05:17:23,916 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 05:17:23,916 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 05:17:23,917 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 05:17:23,917 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 05:17:23,917 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 05:17:23,917 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 05:17:23,917 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 05:17:23,917 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 05:17:23,917 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 05:17:23,917 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 05:17:23,917 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 05:17:23,917 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 05:17:23,917 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 05:17:23,917 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 05:17:23,917 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 05:17:23,917 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 05:17:23,917 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 05:17:23,917 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 05:17:23,917 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 05:17:23,917 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 05:17:23,917 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 05:17:23,917 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 05:17:23,917 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 05:17:23,917 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 05:17:23,918 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 05:17:23,918 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 05:17:23,918 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 05:17:23,918 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 05:17:23,918 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 05:17:23,918 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 05:17:23,918 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 05:17:23,918 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 05:17:23,918 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 05:17:23,918 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 05:17:23,918 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> 216404335c43b82447a03ad9d88ac8bc18e7528b04f40169d87fb26955d8753c [2025-01-09 05:17:24,158 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 05:17:24,166 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 05:17:24,168 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 05:17:24,169 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 05:17:24,170 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 05:17:24,171 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label42+token_ring.13.cil-2.c [2025-01-09 05:17:25,359 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a4c70b6aa/8281c23cb3264d41a445983b54b8c16f/FLAG2565b7689 [2025-01-09 05:17:25,954 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 05:17:25,954 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.13.cil-2.c [2025-01-09 05:17:26,013 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a4c70b6aa/8281c23cb3264d41a445983b54b8c16f/FLAG2565b7689 [2025-01-09 05:17:26,029 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a4c70b6aa/8281c23cb3264d41a445983b54b8c16f [2025-01-09 05:17:26,033 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 05:17:26,035 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 05:17:26,037 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 05:17:26,038 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 05:17:26,041 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 05:17:26,043 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:17:26" (1/1) ... [2025-01-09 05:17:26,043 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ae401e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:26, skipping insertion in model container [2025-01-09 05:17:26,044 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:17:26" (1/1) ... [2025-01-09 05:17:26,190 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 05:17:27,308 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.13.cil-2.c[378560,378573] [2025-01-09 05:17:27,343 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.13.cil-2.c[383339,383352] [2025-01-09 05:17:27,617 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 05:17:27,626 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 05:17:28,153 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.13.cil-2.c[378560,378573] [2025-01-09 05:17:28,159 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.13.cil-2.c[383339,383352] [2025-01-09 05:17:28,187 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 05:17:28,241 INFO L204 MainTranslator]: Completed translation [2025-01-09 05:17:28,242 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:28 WrapperNode [2025-01-09 05:17:28,242 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 05:17:28,243 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 05:17:28,244 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 05:17:28,244 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 05:17:28,264 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:28" (1/1) ... [2025-01-09 05:17:28,341 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:28" (1/1) ... [2025-01-09 05:17:28,668 INFO L138 Inliner]: procedures = 70, calls = 80, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 13242 [2025-01-09 05:17:28,668 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 05:17:28,669 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 05:17:28,669 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 05:17:28,669 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 05:17:28,676 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:28" (1/1) ... [2025-01-09 05:17:28,677 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:28" (1/1) ... [2025-01-09 05:17:28,714 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:28" (1/1) ... [2025-01-09 05:17:28,793 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]. [2025-01-09 05:17:28,793 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:28" (1/1) ... [2025-01-09 05:17:28,794 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:28" (1/1) ... [2025-01-09 05:17:28,942 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:28" (1/1) ... [2025-01-09 05:17:28,964 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:28" (1/1) ... [2025-01-09 05:17:29,068 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:28" (1/1) ... [2025-01-09 05:17:29,105 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:28" (1/1) ... [2025-01-09 05:17:29,138 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:28" (1/1) ... [2025-01-09 05:17:29,213 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 05:17:29,218 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 05:17:29,219 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 05:17:29,219 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 05:17:29,220 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:28" (1/1) ... [2025-01-09 05:17:29,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 05:17:29,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 05:17:29,279 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 05:17:29,292 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 05:17:29,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 05:17:29,322 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2025-01-09 05:17:29,322 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2025-01-09 05:17:29,322 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2025-01-09 05:17:29,322 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2025-01-09 05:17:29,322 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2025-01-09 05:17:29,322 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2025-01-09 05:17:29,322 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2025-01-09 05:17:29,322 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2025-01-09 05:17:29,322 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2025-01-09 05:17:29,322 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2025-01-09 05:17:29,322 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2025-01-09 05:17:29,322 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2025-01-09 05:17:29,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 05:17:29,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 05:17:29,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 05:17:29,457 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 05:17:29,459 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 05:17:35,747 INFO L? ?]: Removed 1761 outVars from TransFormulas that were not future-live. [2025-01-09 05:17:35,748 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 05:17:35,798 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 05:17:35,798 INFO L312 CfgBuilder]: Removed 17 assume(true) statements. [2025-01-09 05:17:35,799 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:17:35 BoogieIcfgContainer [2025-01-09 05:17:35,799 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 05:17:35,801 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 05:17:35,801 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 05:17:35,804 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 05:17:35,804 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 05:17:26" (1/3) ... [2025-01-09 05:17:35,805 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31ce1f10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:17:35, skipping insertion in model container [2025-01-09 05:17:35,805 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:28" (2/3) ... [2025-01-09 05:17:35,805 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31ce1f10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:17:35, skipping insertion in model container [2025-01-09 05:17:35,805 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:17:35" (3/3) ... [2025-01-09 05:17:35,806 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem05_label42+token_ring.13.cil-2.c [2025-01-09 05:17:35,816 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 05:17:35,818 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem05_label42+token_ring.13.cil-2.c that has 7 procedures, 2588 locations, 1 initial locations, 17 loop locations, and 2 error locations. [2025-01-09 05:17:35,901 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 05:17:35,910 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;@74b9435f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 05:17:35,911 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-01-09 05:17:35,921 INFO L276 IsEmpty]: Start isEmpty. Operand has 2588 states, 2553 states have (on average 1.8350959655307482) internal successors, (4685), 2555 states have internal predecessors, (4685), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2025-01-09 05:17:35,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2025-01-09 05:17:35,935 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:17:35,936 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:17:35,936 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:17:35,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:17:35,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1325703449, now seen corresponding path program 1 times [2025-01-09 05:17:35,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:17:35,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943864940] [2025-01-09 05:17:35,944 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:17:35,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:17:36,020 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 187 statements into 1 equivalence classes. [2025-01-09 05:17:36,046 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 187 of 187 statements. [2025-01-09 05:17:36,047 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:17:36,047 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:17:36,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:17:36,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:17:36,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943864940] [2025-01-09 05:17:36,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943864940] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:17:36,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:17:36,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 05:17:36,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659999228] [2025-01-09 05:17:36,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:17:36,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 05:17:36,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:17:36,327 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 05:17:36,327 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 05:17:36,334 INFO L87 Difference]: Start difference. First operand has 2588 states, 2553 states have (on average 1.8350959655307482) internal successors, (4685), 2555 states have internal predecessors, (4685), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:17:36,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:17:36,487 INFO L93 Difference]: Finished difference Result 5167 states and 9461 transitions. [2025-01-09 05:17:36,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 05:17:36,491 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 187 [2025-01-09 05:17:36,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:17:36,514 INFO L225 Difference]: With dead ends: 5167 [2025-01-09 05:17:36,515 INFO L226 Difference]: Without dead ends: 2521 [2025-01-09 05:17:36,525 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 05:17:36,526 INFO L435 NwaCegarLoop]: 4659 mSDtfsCounter, 629 mSDsluCounter, 4022 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 629 SdHoareTripleChecker+Valid, 8681 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 05:17:36,528 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [629 Valid, 8681 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 05:17:36,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2521 states. [2025-01-09 05:17:36,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2521 to 2521. [2025-01-09 05:17:36,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2521 states, 2486 states have (on average 1.8250201126307322) internal successors, (4537), 2488 states have internal predecessors, (4537), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2025-01-09 05:17:36,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2521 states to 2521 states and 4591 transitions. [2025-01-09 05:17:36,651 INFO L78 Accepts]: Start accepts. Automaton has 2521 states and 4591 transitions. Word has length 187 [2025-01-09 05:17:36,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:17:36,654 INFO L471 AbstractCegarLoop]: Abstraction has 2521 states and 4591 transitions. [2025-01-09 05:17:36,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:17:36,654 INFO L276 IsEmpty]: Start isEmpty. Operand 2521 states and 4591 transitions. [2025-01-09 05:17:36,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2025-01-09 05:17:36,659 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:17:36,659 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:17:36,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 05:17:36,659 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:17:36,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:17:36,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1306162327, now seen corresponding path program 1 times [2025-01-09 05:17:36,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:17:36,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702921031] [2025-01-09 05:17:36,660 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:17:36,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:17:36,683 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 187 statements into 1 equivalence classes. [2025-01-09 05:17:36,696 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 187 of 187 statements. [2025-01-09 05:17:36,698 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:17:36,699 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:17:36,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:17:36,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:17:36,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702921031] [2025-01-09 05:17:36,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702921031] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:17:36,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:17:36,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 05:17:36,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067204568] [2025-01-09 05:17:36,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:17:36,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 05:17:36,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:17:36,827 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 05:17:36,827 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 05:17:36,827 INFO L87 Difference]: Start difference. First operand 2521 states and 4591 transitions. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:17:36,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:17:36,885 INFO L93 Difference]: Finished difference Result 2903 states and 5193 transitions. [2025-01-09 05:17:36,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 05:17:36,885 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 187 [2025-01-09 05:17:36,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:17:36,894 INFO L225 Difference]: With dead ends: 2903 [2025-01-09 05:17:36,895 INFO L226 Difference]: Without dead ends: 2521 [2025-01-09 05:17:36,897 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 05:17:36,898 INFO L435 NwaCegarLoop]: 4589 mSDtfsCounter, 615 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 615 SdHoareTripleChecker+Valid, 8547 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 05:17:36,898 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [615 Valid, 8547 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 05:17:36,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2521 states. [2025-01-09 05:17:36,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2521 to 2521. [2025-01-09 05:17:36,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2521 states, 2486 states have (on average 1.82461786001609) internal successors, (4536), 2488 states have internal predecessors, (4536), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2025-01-09 05:17:36,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2521 states to 2521 states and 4590 transitions. [2025-01-09 05:17:36,953 INFO L78 Accepts]: Start accepts. Automaton has 2521 states and 4590 transitions. Word has length 187 [2025-01-09 05:17:36,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:17:36,954 INFO L471 AbstractCegarLoop]: Abstraction has 2521 states and 4590 transitions. [2025-01-09 05:17:36,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:17:36,955 INFO L276 IsEmpty]: Start isEmpty. Operand 2521 states and 4590 transitions. [2025-01-09 05:17:36,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2025-01-09 05:17:36,958 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:17:36,958 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:17:36,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 05:17:36,959 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:17:36,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:17:36,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1581079019, now seen corresponding path program 1 times [2025-01-09 05:17:36,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:17:36,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059685469] [2025-01-09 05:17:36,961 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:17:36,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:17:36,980 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 187 statements into 1 equivalence classes. [2025-01-09 05:17:36,999 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 187 of 187 statements. [2025-01-09 05:17:37,000 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:17:37,000 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:17:37,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:17:37,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:17:37,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059685469] [2025-01-09 05:17:37,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059685469] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:17:37,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:17:37,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 05:17:37,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664647021] [2025-01-09 05:17:37,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:17:37,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 05:17:37,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:17:37,196 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 05:17:37,196 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 05:17:37,196 INFO L87 Difference]: Start difference. First operand 2521 states and 4590 transitions. Second operand has 5 states, 5 states have (on average 35.4) internal successors, (177), 4 states have internal predecessors, (177), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:17:37,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:17:37,920 INFO L93 Difference]: Finished difference Result 3331 states and 5890 transitions. [2025-01-09 05:17:37,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 05:17:37,920 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 4 states have internal predecessors, (177), 2 states have call successors, (5), 2 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 187 [2025-01-09 05:17:37,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:17:37,931 INFO L225 Difference]: With dead ends: 3331 [2025-01-09 05:17:37,932 INFO L226 Difference]: Without dead ends: 2952 [2025-01-09 05:17:37,933 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-09 05:17:37,934 INFO L435 NwaCegarLoop]: 4448 mSDtfsCounter, 5190 mSDsluCounter, 9170 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5211 SdHoareTripleChecker+Valid, 13618 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-01-09 05:17:37,934 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5211 Valid, 13618 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 673 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-01-09 05:17:37,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2952 states. [2025-01-09 05:17:37,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2952 to 2921. [2025-01-09 05:17:37,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2921 states, 2857 states have (on average 1.7959397969898494) internal successors, (5131), 2860 states have internal predecessors, (5131), 49 states have call successors, (49), 12 states have call predecessors, (49), 13 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2025-01-09 05:17:37,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2921 states to 2921 states and 5230 transitions. [2025-01-09 05:17:37,989 INFO L78 Accepts]: Start accepts. Automaton has 2921 states and 5230 transitions. Word has length 187 [2025-01-09 05:17:37,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:17:37,989 INFO L471 AbstractCegarLoop]: Abstraction has 2921 states and 5230 transitions. [2025-01-09 05:17:37,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 4 states have internal predecessors, (177), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:17:37,990 INFO L276 IsEmpty]: Start isEmpty. Operand 2921 states and 5230 transitions. [2025-01-09 05:17:37,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2025-01-09 05:17:37,991 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:17:37,992 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:17:37,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 05:17:37,992 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:17:37,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:17:37,992 INFO L85 PathProgramCache]: Analyzing trace with hash -189035879, now seen corresponding path program 1 times [2025-01-09 05:17:37,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:17:37,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801953361] [2025-01-09 05:17:37,993 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:17:37,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:17:38,006 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 187 statements into 1 equivalence classes. [2025-01-09 05:17:38,011 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 187 of 187 statements. [2025-01-09 05:17:38,012 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:17:38,012 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:17:38,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:17:38,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:17:38,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801953361] [2025-01-09 05:17:38,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801953361] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:17:38,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:17:38,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 05:17:38,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902540228] [2025-01-09 05:17:38,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:17:38,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 05:17:38,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:17:38,207 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 05:17:38,207 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 05:17:38,208 INFO L87 Difference]: Start difference. First operand 2921 states and 5230 transitions. Second operand has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:17:38,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:17:38,970 INFO L93 Difference]: Finished difference Result 4214 states and 7327 transitions. [2025-01-09 05:17:38,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 05:17:38,972 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (5), 2 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 187 [2025-01-09 05:17:38,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:17:38,985 INFO L225 Difference]: With dead ends: 4214 [2025-01-09 05:17:38,986 INFO L226 Difference]: Without dead ends: 3435 [2025-01-09 05:17:38,989 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-01-09 05:17:38,990 INFO L435 NwaCegarLoop]: 4786 mSDtfsCounter, 5202 mSDsluCounter, 14421 mSDsCounter, 0 mSdLazyCounter, 1148 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5223 SdHoareTripleChecker+Valid, 19207 SdHoareTripleChecker+Invalid, 1181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-01-09 05:17:38,990 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5223 Valid, 19207 Invalid, 1181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1148 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-01-09 05:17:38,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3435 states. [2025-01-09 05:17:39,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3435 to 3292. [2025-01-09 05:17:39,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3292 states, 3199 states have (on average 1.771803688652704) internal successors, (5668), 3203 states have internal predecessors, (5668), 71 states have call successors, (71), 18 states have call predecessors, (71), 20 states have return successors, (75), 72 states have call predecessors, (75), 71 states have call successors, (75) [2025-01-09 05:17:39,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3292 states to 3292 states and 5814 transitions. [2025-01-09 05:17:39,144 INFO L78 Accepts]: Start accepts. Automaton has 3292 states and 5814 transitions. Word has length 187 [2025-01-09 05:17:39,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:17:39,145 INFO L471 AbstractCegarLoop]: Abstraction has 3292 states and 5814 transitions. [2025-01-09 05:17:39,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:17:39,145 INFO L276 IsEmpty]: Start isEmpty. Operand 3292 states and 5814 transitions. [2025-01-09 05:17:39,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2025-01-09 05:17:39,147 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:17:39,147 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:17:39,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 05:17:39,148 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:17:39,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:17:39,148 INFO L85 PathProgramCache]: Analyzing trace with hash 381235927, now seen corresponding path program 1 times [2025-01-09 05:17:39,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:17:39,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531680569] [2025-01-09 05:17:39,149 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:17:39,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:17:39,160 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 187 statements into 1 equivalence classes. [2025-01-09 05:17:39,167 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 187 of 187 statements. [2025-01-09 05:17:39,167 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:17:39,167 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:17:39,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:17:39,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:17:39,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531680569] [2025-01-09 05:17:39,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531680569] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:17:39,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:17:39,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 05:17:39,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879140692] [2025-01-09 05:17:39,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:17:39,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 05:17:39,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:17:39,528 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 05:17:39,528 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 05:17:39,528 INFO L87 Difference]: Start difference. First operand 3292 states and 5814 transitions. Second operand has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:17:40,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:17:40,381 INFO L93 Difference]: Finished difference Result 5395 states and 9214 transitions. [2025-01-09 05:17:40,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 05:17:40,381 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (5), 2 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 187 [2025-01-09 05:17:40,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:17:40,398 INFO L225 Difference]: With dead ends: 5395 [2025-01-09 05:17:40,399 INFO L226 Difference]: Without dead ends: 4245 [2025-01-09 05:17:40,403 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-01-09 05:17:40,404 INFO L435 NwaCegarLoop]: 4778 mSDtfsCounter, 5194 mSDsluCounter, 14399 mSDsCounter, 0 mSdLazyCounter, 1148 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5215 SdHoareTripleChecker+Valid, 19177 SdHoareTripleChecker+Invalid, 1181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-01-09 05:17:40,404 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5215 Valid, 19177 Invalid, 1181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1148 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-01-09 05:17:40,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4245 states. [2025-01-09 05:17:40,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4245 to 4084. [2025-01-09 05:17:40,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4084 states, 3931 states have (on average 1.7387433223098447) internal successors, (6835), 3939 states have internal predecessors, (6835), 115 states have call successors, (115), 30 states have call predecessors, (115), 36 states have return successors, (131), 118 states have call predecessors, (131), 115 states have call successors, (131) [2025-01-09 05:17:40,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4084 states to 4084 states and 7081 transitions. [2025-01-09 05:17:40,525 INFO L78 Accepts]: Start accepts. Automaton has 4084 states and 7081 transitions. Word has length 187 [2025-01-09 05:17:40,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:17:40,525 INFO L471 AbstractCegarLoop]: Abstraction has 4084 states and 7081 transitions. [2025-01-09 05:17:40,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:17:40,526 INFO L276 IsEmpty]: Start isEmpty. Operand 4084 states and 7081 transitions. [2025-01-09 05:17:40,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2025-01-09 05:17:40,528 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:17:40,528 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:17:40,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 05:17:40,528 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:17:40,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:17:40,529 INFO L85 PathProgramCache]: Analyzing trace with hash -404761963, now seen corresponding path program 1 times [2025-01-09 05:17:40,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:17:40,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987235371] [2025-01-09 05:17:40,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:17:40,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:17:40,539 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 187 statements into 1 equivalence classes. [2025-01-09 05:17:40,546 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 187 of 187 statements. [2025-01-09 05:17:40,546 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:17:40,546 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:17:40,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:17:40,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:17:40,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987235371] [2025-01-09 05:17:40,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987235371] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:17:40,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:17:40,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 05:17:40,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421682519] [2025-01-09 05:17:40,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:17:40,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 05:17:40,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:17:40,683 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 05:17:40,683 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 05:17:40,683 INFO L87 Difference]: Start difference. First operand 4084 states and 7081 transitions. Second operand has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:17:41,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:17:41,444 INFO L93 Difference]: Finished difference Result 7963 states and 13403 transitions. [2025-01-09 05:17:41,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 05:17:41,444 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (5), 2 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 187 [2025-01-09 05:17:41,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:17:41,465 INFO L225 Difference]: With dead ends: 7963 [2025-01-09 05:17:41,465 INFO L226 Difference]: Without dead ends: 6021 [2025-01-09 05:17:41,472 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-01-09 05:17:41,472 INFO L435 NwaCegarLoop]: 4775 mSDtfsCounter, 5189 mSDsluCounter, 14390 mSDsCounter, 0 mSdLazyCounter, 1148 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5210 SdHoareTripleChecker+Valid, 19165 SdHoareTripleChecker+Invalid, 1181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-01-09 05:17:41,472 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5210 Valid, 19165 Invalid, 1181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1148 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-01-09 05:17:41,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6021 states. [2025-01-09 05:17:41,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6021 to 5815. [2025-01-09 05:17:41,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5815 states, 5536 states have (on average 1.7057442196531791) internal successors, (9443), 5558 states have internal predecessors, (9443), 203 states have call successors, (203), 54 states have call predecessors, (203), 74 states have return successors, (267), 210 states have call predecessors, (267), 203 states have call successors, (267) [2025-01-09 05:17:41,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5815 states to 5815 states and 9913 transitions. [2025-01-09 05:17:41,631 INFO L78 Accepts]: Start accepts. Automaton has 5815 states and 9913 transitions. Word has length 187 [2025-01-09 05:17:41,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:17:41,631 INFO L471 AbstractCegarLoop]: Abstraction has 5815 states and 9913 transitions. [2025-01-09 05:17:41,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:17:41,633 INFO L276 IsEmpty]: Start isEmpty. Operand 5815 states and 9913 transitions. [2025-01-09 05:17:41,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2025-01-09 05:17:41,635 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:17:41,635 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:17:41,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-09 05:17:41,636 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:17:41,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:17:41,636 INFO L85 PathProgramCache]: Analyzing trace with hash 262619927, now seen corresponding path program 1 times [2025-01-09 05:17:41,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:17:41,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864205884] [2025-01-09 05:17:41,636 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:17:41,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:17:41,645 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 187 statements into 1 equivalence classes. [2025-01-09 05:17:41,651 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 187 of 187 statements. [2025-01-09 05:17:41,651 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:17:41,651 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:17:41,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:17:41,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:17:41,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864205884] [2025-01-09 05:17:41,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864205884] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:17:41,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:17:41,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 05:17:41,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911961128] [2025-01-09 05:17:41,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:17:41,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 05:17:41,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:17:41,766 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 05:17:41,766 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 05:17:41,766 INFO L87 Difference]: Start difference. First operand 5815 states and 9913 transitions. Second operand has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:17:42,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:17:42,591 INFO L93 Difference]: Finished difference Result 13668 states and 22961 transitions. [2025-01-09 05:17:42,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 05:17:42,592 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (5), 2 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 187 [2025-01-09 05:17:42,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:17:42,631 INFO L225 Difference]: With dead ends: 13668 [2025-01-09 05:17:42,631 INFO L226 Difference]: Without dead ends: 9995 [2025-01-09 05:17:42,643 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-01-09 05:17:42,644 INFO L435 NwaCegarLoop]: 4772 mSDtfsCounter, 5184 mSDsluCounter, 14381 mSDsCounter, 0 mSdLazyCounter, 1148 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5205 SdHoareTripleChecker+Valid, 19153 SdHoareTripleChecker+Invalid, 1181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-01-09 05:17:42,644 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5205 Valid, 19153 Invalid, 1181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1148 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-01-09 05:17:42,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9995 states. [2025-01-09 05:17:42,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9995 to 9700. [2025-01-09 05:17:42,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9700 states, 9151 states have (on average 1.688012239099552) internal successors, (15447), 9219 states have internal predecessors, (15447), 379 states have call successors, (379), 102 states have call predecessors, (379), 168 states have return successors, (635), 394 states have call predecessors, (635), 379 states have call successors, (635) [2025-01-09 05:17:42,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9700 states to 9700 states and 16461 transitions. [2025-01-09 05:17:42,904 INFO L78 Accepts]: Start accepts. Automaton has 9700 states and 16461 transitions. Word has length 187 [2025-01-09 05:17:42,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:17:42,905 INFO L471 AbstractCegarLoop]: Abstraction has 9700 states and 16461 transitions. [2025-01-09 05:17:42,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:17:42,905 INFO L276 IsEmpty]: Start isEmpty. Operand 9700 states and 16461 transitions. [2025-01-09 05:17:42,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2025-01-09 05:17:42,909 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:17:42,909 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:17:42,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-09 05:17:42,910 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:17:42,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:17:42,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1932608939, now seen corresponding path program 1 times [2025-01-09 05:17:42,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:17:42,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601052665] [2025-01-09 05:17:42,911 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:17:42,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:17:42,921 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 187 statements into 1 equivalence classes. [2025-01-09 05:17:42,927 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 187 of 187 statements. [2025-01-09 05:17:42,927 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:17:42,928 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:17:43,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:17:43,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:17:43,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601052665] [2025-01-09 05:17:43,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601052665] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:17:43,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:17:43,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 05:17:43,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526880357] [2025-01-09 05:17:43,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:17:43,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 05:17:43,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:17:43,052 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 05:17:43,052 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 05:17:43,052 INFO L87 Difference]: Start difference. First operand 9700 states and 16461 transitions. Second operand has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:17:44,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:17:44,079 INFO L93 Difference]: Finished difference Result 26711 states and 45595 transitions. [2025-01-09 05:17:44,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 05:17:44,080 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (5), 2 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 187 [2025-01-09 05:17:44,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:17:44,143 INFO L225 Difference]: With dead ends: 26711 [2025-01-09 05:17:44,143 INFO L226 Difference]: Without dead ends: 19153 [2025-01-09 05:17:44,170 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-01-09 05:17:44,171 INFO L435 NwaCegarLoop]: 4486 mSDtfsCounter, 5219 mSDsluCounter, 13696 mSDsCounter, 0 mSdLazyCounter, 944 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5240 SdHoareTripleChecker+Valid, 18182 SdHoareTripleChecker+Invalid, 1000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 944 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-01-09 05:17:44,171 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5240 Valid, 18182 Invalid, 1000 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 944 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-01-09 05:17:44,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19153 states. [2025-01-09 05:17:44,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19153 to 18685. [2025-01-09 05:17:44,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18685 states, 17542 states have (on average 1.6939345570630486) internal successors, (29715), 17756 states have internal predecessors, (29715), 731 states have call successors, (731), 198 states have call predecessors, (731), 410 states have return successors, (1755), 762 states have call predecessors, (1755), 731 states have call successors, (1755) [2025-01-09 05:17:44,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18685 states to 18685 states and 32201 transitions. [2025-01-09 05:17:44,720 INFO L78 Accepts]: Start accepts. Automaton has 18685 states and 32201 transitions. Word has length 187 [2025-01-09 05:17:44,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:17:44,720 INFO L471 AbstractCegarLoop]: Abstraction has 18685 states and 32201 transitions. [2025-01-09 05:17:44,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:17:44,721 INFO L276 IsEmpty]: Start isEmpty. Operand 18685 states and 32201 transitions. [2025-01-09 05:17:44,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2025-01-09 05:17:44,728 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:17:44,728 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:17:44,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-09 05:17:44,729 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:17:44,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:17:44,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1587780777, now seen corresponding path program 1 times [2025-01-09 05:17:44,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:17:44,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924823853] [2025-01-09 05:17:44,730 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:17:44,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:17:44,738 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 187 statements into 1 equivalence classes. [2025-01-09 05:17:44,744 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 187 of 187 statements. [2025-01-09 05:17:44,744 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:17:44,744 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:17:44,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:17:44,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:17:44,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924823853] [2025-01-09 05:17:44,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924823853] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:17:44,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:17:44,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 05:17:44,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798505370] [2025-01-09 05:17:44,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:17:44,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 05:17:44,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:17:44,835 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 05:17:44,835 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 05:17:44,835 INFO L87 Difference]: Start difference. First operand 18685 states and 32201 transitions. Second operand has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:17:45,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:17:45,664 INFO L93 Difference]: Finished difference Result 40618 states and 71546 transitions. [2025-01-09 05:17:45,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 05:17:45,665 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (5), 2 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 187 [2025-01-09 05:17:45,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:17:45,846 INFO L225 Difference]: With dead ends: 40618 [2025-01-09 05:17:45,847 INFO L226 Difference]: Without dead ends: 24075 [2025-01-09 05:17:45,891 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-09 05:17:45,893 INFO L435 NwaCegarLoop]: 4425 mSDtfsCounter, 4820 mSDsluCounter, 8685 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4841 SdHoareTripleChecker+Valid, 13110 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-09 05:17:45,894 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4841 Valid, 13110 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-09 05:17:45,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24075 states. [2025-01-09 05:17:46,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24075 to 18685. [2025-01-09 05:17:46,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18685 states, 17542 states have (on average 1.6920533576559116) internal successors, (29682), 17756 states have internal predecessors, (29682), 731 states have call successors, (731), 198 states have call predecessors, (731), 410 states have return successors, (1755), 762 states have call predecessors, (1755), 731 states have call successors, (1755) [2025-01-09 05:17:46,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18685 states to 18685 states and 32168 transitions. [2025-01-09 05:17:46,518 INFO L78 Accepts]: Start accepts. Automaton has 18685 states and 32168 transitions. Word has length 187 [2025-01-09 05:17:46,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:17:46,518 INFO L471 AbstractCegarLoop]: Abstraction has 18685 states and 32168 transitions. [2025-01-09 05:17:46,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:17:46,519 INFO L276 IsEmpty]: Start isEmpty. Operand 18685 states and 32168 transitions. [2025-01-09 05:17:46,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2025-01-09 05:17:46,526 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:17:46,526 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:17:46,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-01-09 05:17:46,527 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:17:46,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:17:46,528 INFO L85 PathProgramCache]: Analyzing trace with hash -606825963, now seen corresponding path program 1 times [2025-01-09 05:17:46,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:17:46,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199213502] [2025-01-09 05:17:46,528 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:17:46,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:17:46,543 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 187 statements into 1 equivalence classes. [2025-01-09 05:17:46,548 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 187 of 187 statements. [2025-01-09 05:17:46,548 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:17:46,548 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:17:46,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:17:46,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:17:46,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199213502] [2025-01-09 05:17:46,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199213502] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:17:46,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:17:46,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 05:17:46,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605734184] [2025-01-09 05:17:46,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:17:46,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 05:17:46,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:17:46,661 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 05:17:46,661 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 05:17:46,661 INFO L87 Difference]: Start difference. First operand 18685 states and 32168 transitions. Second operand has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:17:47,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:17:47,778 INFO L93 Difference]: Finished difference Result 57204 states and 100826 transitions. [2025-01-09 05:17:47,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 05:17:47,779 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (5), 2 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 187 [2025-01-09 05:17:47,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:17:48,051 INFO L225 Difference]: With dead ends: 57204 [2025-01-09 05:17:48,051 INFO L226 Difference]: Without dead ends: 40661 [2025-01-09 05:17:48,120 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-01-09 05:17:48,124 INFO L435 NwaCegarLoop]: 4761 mSDtfsCounter, 5166 mSDsluCounter, 14349 mSDsCounter, 0 mSdLazyCounter, 1148 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5187 SdHoareTripleChecker+Valid, 19110 SdHoareTripleChecker+Invalid, 1181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-09 05:17:48,125 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5187 Valid, 19110 Invalid, 1181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1148 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-09 05:17:48,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40661 states. [2025-01-09 05:17:49,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40661 to 39895. [2025-01-09 05:17:49,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39895 states, 37402 states have (on average 1.715523234051655) internal successors, (64164), 38070 states have internal predecessors, (64164), 1435 states have call successors, (1435), 390 states have call predecessors, (1435), 1056 states have return successors, (5531), 1498 states have call predecessors, (5531), 1435 states have call successors, (5531) [2025-01-09 05:17:49,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39895 states to 39895 states and 71130 transitions. [2025-01-09 05:17:49,350 INFO L78 Accepts]: Start accepts. Automaton has 39895 states and 71130 transitions. Word has length 187 [2025-01-09 05:17:49,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:17:49,351 INFO L471 AbstractCegarLoop]: Abstraction has 39895 states and 71130 transitions. [2025-01-09 05:17:49,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:17:49,351 INFO L276 IsEmpty]: Start isEmpty. Operand 39895 states and 71130 transitions. [2025-01-09 05:17:49,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2025-01-09 05:17:49,364 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:17:49,364 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:17:49,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-01-09 05:17:49,365 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:17:49,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:17:49,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1918669719, now seen corresponding path program 1 times [2025-01-09 05:17:49,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:17:49,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802447823] [2025-01-09 05:17:49,366 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:17:49,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:17:49,378 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 187 statements into 1 equivalence classes. [2025-01-09 05:17:49,384 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 187 of 187 statements. [2025-01-09 05:17:49,385 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:17:49,385 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:17:49,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:17:49,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:17:49,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802447823] [2025-01-09 05:17:49,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802447823] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:17:49,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:17:49,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 05:17:49,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8751314] [2025-01-09 05:17:49,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:17:49,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 05:17:49,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:17:49,494 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 05:17:49,494 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 05:17:49,495 INFO L87 Difference]: Start difference. First operand 39895 states and 71130 transitions. Second operand has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:17:52,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:17:52,251 INFO L93 Difference]: Finished difference Result 130916 states and 242530 transitions. [2025-01-09 05:17:52,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 05:17:52,251 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (5), 2 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 187 [2025-01-09 05:17:52,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:17:52,598 INFO L225 Difference]: With dead ends: 130916 [2025-01-09 05:17:52,599 INFO L226 Difference]: Without dead ends: 93163 [2025-01-09 05:17:52,713 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-01-09 05:17:52,714 INFO L435 NwaCegarLoop]: 4758 mSDtfsCounter, 5161 mSDsluCounter, 14340 mSDsCounter, 0 mSdLazyCounter, 1148 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5182 SdHoareTripleChecker+Valid, 19098 SdHoareTripleChecker+Invalid, 1181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-01-09 05:17:52,714 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5182 Valid, 19098 Invalid, 1181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1148 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-01-09 05:17:52,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93163 states. [2025-01-09 05:17:55,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93163 to 91792. [2025-01-09 05:17:55,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91792 states, 86113 states have (on average 1.7487719624214695) internal successors, (150592), 88175 states have internal predecessors, (150592), 2843 states have call successors, (2843), 774 states have call predecessors, (2843), 2834 states have return successors, (19227), 2970 states have call predecessors, (19227), 2843 states have call successors, (19227) [2025-01-09 05:17:55,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91792 states to 91792 states and 172662 transitions. [2025-01-09 05:17:55,709 INFO L78 Accepts]: Start accepts. Automaton has 91792 states and 172662 transitions. Word has length 187 [2025-01-09 05:17:55,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:17:55,709 INFO L471 AbstractCegarLoop]: Abstraction has 91792 states and 172662 transitions. [2025-01-09 05:17:55,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:17:55,709 INFO L276 IsEmpty]: Start isEmpty. Operand 91792 states and 172662 transitions. [2025-01-09 05:17:55,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2025-01-09 05:17:55,732 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:17:55,732 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:17:55,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-01-09 05:17:55,733 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:17:55,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:17:55,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1307400661, now seen corresponding path program 1 times [2025-01-09 05:17:55,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:17:55,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913971647] [2025-01-09 05:17:55,734 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:17:55,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:17:55,749 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 187 statements into 1 equivalence classes. [2025-01-09 05:17:55,757 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 187 of 187 statements. [2025-01-09 05:17:55,757 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:17:55,757 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:17:55,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:17:55,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:17:55,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913971647] [2025-01-09 05:17:55,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913971647] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:17:55,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:17:55,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 05:17:55,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980143420] [2025-01-09 05:17:55,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:17:55,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 05:17:55,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:17:55,865 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 05:17:55,866 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 05:17:55,866 INFO L87 Difference]: Start difference. First operand 91792 states and 172662 transitions. Second operand has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:17:59,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:17:59,171 INFO L93 Difference]: Finished difference Result 220844 states and 430212 transitions. [2025-01-09 05:17:59,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 05:17:59,171 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (5), 2 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 187 [2025-01-09 05:17:59,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:17:59,606 INFO L225 Difference]: With dead ends: 220844 [2025-01-09 05:17:59,607 INFO L226 Difference]: Without dead ends: 131194 [2025-01-09 05:17:59,777 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-09 05:17:59,778 INFO L435 NwaCegarLoop]: 4416 mSDtfsCounter, 4814 mSDsluCounter, 8668 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4835 SdHoareTripleChecker+Valid, 13084 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-09 05:17:59,778 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4835 Valid, 13084 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-09 05:17:59,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131194 states. [2025-01-09 05:18:04,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131194 to 91792. [2025-01-09 05:18:04,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91792 states, 86113 states have (on average 1.7472739307653897) internal successors, (150463), 88175 states have internal predecessors, (150463), 2843 states have call successors, (2843), 774 states have call predecessors, (2843), 2834 states have return successors, (19227), 2970 states have call predecessors, (19227), 2843 states have call successors, (19227) [2025-01-09 05:18:05,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91792 states to 91792 states and 172533 transitions. [2025-01-09 05:18:05,162 INFO L78 Accepts]: Start accepts. Automaton has 91792 states and 172533 transitions. Word has length 187 [2025-01-09 05:18:05,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:18:05,162 INFO L471 AbstractCegarLoop]: Abstraction has 91792 states and 172533 transitions. [2025-01-09 05:18:05,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:18:05,162 INFO L276 IsEmpty]: Start isEmpty. Operand 91792 states and 172533 transitions. [2025-01-09 05:18:05,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2025-01-09 05:18:05,180 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:18:05,180 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:18:05,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-01-09 05:18:05,181 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:18:05,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:18:05,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1093232749, now seen corresponding path program 1 times [2025-01-09 05:18:05,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:18:05,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553863561] [2025-01-09 05:18:05,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:18:05,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:18:05,190 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 187 statements into 1 equivalence classes. [2025-01-09 05:18:05,194 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 187 of 187 statements. [2025-01-09 05:18:05,194 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:18:05,194 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:18:05,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:18:05,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:18:05,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553863561] [2025-01-09 05:18:05,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553863561] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:18:05,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:18:05,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 05:18:05,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814605471] [2025-01-09 05:18:05,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:18:05,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 05:18:05,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:18:05,293 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 05:18:05,293 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 05:18:05,293 INFO L87 Difference]: Start difference. First operand 91792 states and 172533 transitions. Second operand has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:18:11,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:18:11,567 INFO L93 Difference]: Finished difference Result 310093 states and 613849 transitions. [2025-01-09 05:18:11,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 05:18:11,568 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (5), 2 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 187 [2025-01-09 05:18:11,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:18:12,457 INFO L225 Difference]: With dead ends: 310093 [2025-01-09 05:18:12,457 INFO L226 Difference]: Without dead ends: 220443 [2025-01-09 05:18:12,716 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-01-09 05:18:12,716 INFO L435 NwaCegarLoop]: 4746 mSDtfsCounter, 5145 mSDsluCounter, 14307 mSDsCounter, 0 mSdLazyCounter, 1148 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5166 SdHoareTripleChecker+Valid, 19053 SdHoareTripleChecker+Invalid, 1181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-09 05:18:12,716 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5166 Valid, 19053 Invalid, 1181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1148 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-09 05:18:12,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220443 states.