./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label43+token_ring.12.cil-1.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_label43+token_ring.12.cil-1.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 75bb47d196b7c0cfa74650bf56de75ff6699dc5c2700eb5e9ba9836562c6aee4 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 05:19:08,860 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 05:19:08,894 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 05:19:08,898 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 05:19:08,898 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 05:19:08,912 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 05:19:08,913 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 05:19:08,913 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 05:19:08,913 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 05:19:08,913 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 05:19:08,913 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 05:19:08,913 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 05:19:08,914 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 05:19:08,914 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 05:19:08,914 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 05:19:08,914 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 05:19:08,914 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 05:19:08,914 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 05:19:08,914 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 05:19:08,914 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 05:19:08,914 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 05:19:08,914 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 05:19:08,915 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 05:19:08,915 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 05:19:08,915 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 05:19:08,915 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 05:19:08,915 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 05:19:08,915 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 05:19:08,915 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 05:19:08,915 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 05:19:08,915 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 05:19:08,915 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 05:19:08,915 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 05:19:08,915 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 05:19:08,916 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 05:19:08,916 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 05:19:08,916 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 05:19:08,916 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 05:19:08,916 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 05:19:08,916 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 05:19:08,916 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 05:19:08,916 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 05:19:08,916 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 05:19:08,916 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 05:19:08,916 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 05:19:08,916 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 05:19:08,917 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 05:19:08,917 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 05:19:08,917 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 -> 75bb47d196b7c0cfa74650bf56de75ff6699dc5c2700eb5e9ba9836562c6aee4 [2025-01-09 05:19:09,158 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 05:19:09,167 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 05:19:09,170 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 05:19:09,172 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 05:19:09,172 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 05:19:09,173 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label43+token_ring.12.cil-1.c [2025-01-09 05:19:10,305 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4441eba5c/dcd2ec37ab594bc5bf0503f1c26ebeb5/FLAGcba3748ea [2025-01-09 05:19:10,942 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 05:19:10,942 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label43+token_ring.12.cil-1.c [2025-01-09 05:19:10,997 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4441eba5c/dcd2ec37ab594bc5bf0503f1c26ebeb5/FLAGcba3748ea [2025-01-09 05:19:11,383 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4441eba5c/dcd2ec37ab594bc5bf0503f1c26ebeb5 [2025-01-09 05:19:11,385 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 05:19:11,386 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 05:19:11,388 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 05:19:11,389 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 05:19:11,393 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 05:19:11,394 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:19:11" (1/1) ... [2025-01-09 05:19:11,394 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56b857 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:19:11, skipping insertion in model container [2025-01-09 05:19:11,395 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:19:11" (1/1) ... [2025-01-09 05:19:11,576 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 05:19:12,759 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_label43+token_ring.12.cil-1.c[381679,381692] [2025-01-09 05:19:12,787 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_label43+token_ring.12.cil-1.c[383339,383352] [2025-01-09 05:19:13,060 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 05:19:13,069 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 05:19:13,579 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_label43+token_ring.12.cil-1.c[381679,381692] [2025-01-09 05:19:13,583 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_label43+token_ring.12.cil-1.c[383339,383352] [2025-01-09 05:19:13,607 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 05:19:13,653 INFO L204 MainTranslator]: Completed translation [2025-01-09 05:19:13,655 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:19:13 WrapperNode [2025-01-09 05:19:13,655 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 05:19:13,657 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 05:19:13,657 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 05:19:13,657 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 05:19:13,662 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:19:13" (1/1) ... [2025-01-09 05:19:13,797 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:19:13" (1/1) ... [2025-01-09 05:19:14,150 INFO L138 Inliner]: procedures = 68, calls = 78, calls flagged for inlining = 45, calls inlined = 45, statements flattened = 13191 [2025-01-09 05:19:14,150 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 05:19:14,151 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 05:19:14,151 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 05:19:14,151 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 05:19:14,158 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:19:13" (1/1) ... [2025-01-09 05:19:14,158 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:19:13" (1/1) ... [2025-01-09 05:19:14,197 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:19:13" (1/1) ... [2025-01-09 05:19:14,283 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 05:19:14,284 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:19:13" (1/1) ... [2025-01-09 05:19:14,284 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:19:13" (1/1) ... [2025-01-09 05:19:14,398 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:19:13" (1/1) ... [2025-01-09 05:19:14,417 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:19:13" (1/1) ... [2025-01-09 05:19:14,446 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:19:13" (1/1) ... [2025-01-09 05:19:14,472 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:19:13" (1/1) ... [2025-01-09 05:19:14,497 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:19:13" (1/1) ... [2025-01-09 05:19:14,558 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 05:19:14,560 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 05:19:14,560 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 05:19:14,560 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 05:19:14,561 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:19:13" (1/1) ... [2025-01-09 05:19:14,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 05:19:14,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 05:19:14,589 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 05:19:14,599 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 05:19:14,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 05:19:14,615 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2025-01-09 05:19:14,615 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2025-01-09 05:19:14,615 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2025-01-09 05:19:14,615 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2025-01-09 05:19:14,615 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2025-01-09 05:19:14,615 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2025-01-09 05:19:14,615 INFO L130 BoogieDeclarations]: Found specification of procedure error [2025-01-09 05:19:14,615 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2025-01-09 05:19:14,615 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2025-01-09 05:19:14,616 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2025-01-09 05:19:14,616 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2025-01-09 05:19:14,616 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2025-01-09 05:19:14,616 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2025-01-09 05:19:14,616 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2025-01-09 05:19:14,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 05:19:14,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 05:19:14,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 05:19:14,737 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 05:19:14,739 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 05:19:20,828 INFO L? ?]: Removed 1759 outVars from TransFormulas that were not future-live. [2025-01-09 05:19:20,829 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 05:19:20,874 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 05:19:20,874 INFO L312 CfgBuilder]: Removed 16 assume(true) statements. [2025-01-09 05:19:20,874 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:19:20 BoogieIcfgContainer [2025-01-09 05:19:20,874 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 05:19:20,876 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 05:19:20,876 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 05:19:20,882 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 05:19:20,886 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 05:19:11" (1/3) ... [2025-01-09 05:19:20,887 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45ae0a22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:19:20, skipping insertion in model container [2025-01-09 05:19:20,887 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:19:13" (2/3) ... [2025-01-09 05:19:20,887 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45ae0a22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:19:20, skipping insertion in model container [2025-01-09 05:19:20,887 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:19:20" (3/3) ... [2025-01-09 05:19:20,888 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem05_label43+token_ring.12.cil-1.c [2025-01-09 05:19:20,902 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 05:19:20,905 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem05_label43+token_ring.12.cil-1.c that has 8 procedures, 2571 locations, 1 initial locations, 16 loop locations, and 2 error locations. [2025-01-09 05:19:21,014 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 05:19:21,024 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;@1218df05, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 05:19:21,025 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-01-09 05:19:21,036 INFO L276 IsEmpty]: Start isEmpty. Operand has 2571 states, 2534 states have (on average 1.8370165745856353) internal successors, (4655), 2538 states have internal predecessors, (4655), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2025-01-09 05:19:21,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2025-01-09 05:19:21,047 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:19:21,047 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] [2025-01-09 05:19:21,048 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:19:21,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:19:21,052 INFO L85 PathProgramCache]: Analyzing trace with hash 338408662, now seen corresponding path program 1 times [2025-01-09 05:19:21,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:19:21,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196997364] [2025-01-09 05:19:21,058 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:19:21,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:19:21,128 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 177 statements into 1 equivalence classes. [2025-01-09 05:19:21,148 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 177 of 177 statements. [2025-01-09 05:19:21,148 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:19:21,148 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:19:21,381 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 05:19:21,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:19:21,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196997364] [2025-01-09 05:19:21,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196997364] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:19:21,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:19:21,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 05:19:21,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449840310] [2025-01-09 05:19:21,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:19:21,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 05:19:21,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:19:21,401 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 05:19:21,402 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 05:19:21,409 INFO L87 Difference]: Start difference. First operand has 2571 states, 2534 states have (on average 1.8370165745856353) internal successors, (4655), 2538 states have internal predecessors, (4655), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:19:21,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:19:21,594 INFO L93 Difference]: Finished difference Result 5134 states and 9409 transitions. [2025-01-09 05:19:21,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 05:19:21,596 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 177 [2025-01-09 05:19:21,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:19:21,620 INFO L225 Difference]: With dead ends: 5134 [2025-01-09 05:19:21,621 INFO L226 Difference]: Without dead ends: 2503 [2025-01-09 05:19:21,631 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 05:19:21,633 INFO L435 NwaCegarLoop]: 4630 mSDtfsCounter, 602 mSDsluCounter, 4022 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 602 SdHoareTripleChecker+Valid, 8652 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 05:19:21,636 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [602 Valid, 8652 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 05:19:21,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2503 states. [2025-01-09 05:19:21,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2503 to 2503. [2025-01-09 05:19:21,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2503 states, 2467 states have (on average 1.8273206323469802) internal successors, (4508), 2470 states have internal predecessors, (4508), 28 states have call successors, (28), 7 states have call predecessors, (28), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2025-01-09 05:19:21,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2503 states to 2503 states and 4562 transitions. [2025-01-09 05:19:21,912 INFO L78 Accepts]: Start accepts. Automaton has 2503 states and 4562 transitions. Word has length 177 [2025-01-09 05:19:21,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:19:21,913 INFO L471 AbstractCegarLoop]: Abstraction has 2503 states and 4562 transitions. [2025-01-09 05:19:21,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:19:21,914 INFO L276 IsEmpty]: Start isEmpty. Operand 2503 states and 4562 transitions. [2025-01-09 05:19:21,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2025-01-09 05:19:21,916 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:19:21,917 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] [2025-01-09 05:19:21,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 05:19:21,917 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:19:21,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:19:21,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1746134612, now seen corresponding path program 1 times [2025-01-09 05:19:21,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:19:21,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842719557] [2025-01-09 05:19:21,920 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:19:21,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:19:21,931 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 177 statements into 1 equivalence classes. [2025-01-09 05:19:21,941 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 177 of 177 statements. [2025-01-09 05:19:21,941 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:19:21,941 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:19:22,064 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 05:19:22,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:19:22,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842719557] [2025-01-09 05:19:22,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842719557] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:19:22,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:19:22,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 05:19:22,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276859971] [2025-01-09 05:19:22,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:19:22,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 05:19:22,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:19:22,070 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 05:19:22,070 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 05:19:22,070 INFO L87 Difference]: Start difference. First operand 2503 states and 4562 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:19:22,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:19:22,132 INFO L93 Difference]: Finished difference Result 2869 states and 5139 transitions. [2025-01-09 05:19:22,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 05:19:22,132 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 177 [2025-01-09 05:19:22,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:19:22,143 INFO L225 Difference]: With dead ends: 2869 [2025-01-09 05:19:22,143 INFO L226 Difference]: Without dead ends: 2503 [2025-01-09 05:19:22,145 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 05:19:22,145 INFO L435 NwaCegarLoop]: 4560 mSDtfsCounter, 588 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 588 SdHoareTripleChecker+Valid, 8518 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 05:19:22,146 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [588 Valid, 8518 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 05:19:22,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2503 states. [2025-01-09 05:19:22,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2503 to 2503. [2025-01-09 05:19:22,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2503 states, 2467 states have (on average 1.8269152817186867) internal successors, (4507), 2470 states have internal predecessors, (4507), 28 states have call successors, (28), 7 states have call predecessors, (28), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2025-01-09 05:19:22,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2503 states to 2503 states and 4561 transitions. [2025-01-09 05:19:22,207 INFO L78 Accepts]: Start accepts. Automaton has 2503 states and 4561 transitions. Word has length 177 [2025-01-09 05:19:22,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:19:22,208 INFO L471 AbstractCegarLoop]: Abstraction has 2503 states and 4561 transitions. [2025-01-09 05:19:22,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:19:22,209 INFO L276 IsEmpty]: Start isEmpty. Operand 2503 states and 4561 transitions. [2025-01-09 05:19:22,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2025-01-09 05:19:22,211 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:19:22,211 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] [2025-01-09 05:19:22,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 05:19:22,212 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:19:22,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:19:22,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1078752722, now seen corresponding path program 1 times [2025-01-09 05:19:22,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:19:22,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958024895] [2025-01-09 05:19:22,216 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:19:22,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:19:22,231 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 177 statements into 1 equivalence classes. [2025-01-09 05:19:22,242 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 177 of 177 statements. [2025-01-09 05:19:22,242 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:19:22,243 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:19:22,407 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 05:19:22,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:19:22,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958024895] [2025-01-09 05:19:22,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958024895] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:19:22,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:19:22,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 05:19:22,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694785264] [2025-01-09 05:19:22,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:19:22,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 05:19:22,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:19:22,408 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 05:19:22,408 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 05:19:22,408 INFO L87 Difference]: Start difference. First operand 2503 states and 4561 transitions. Second operand has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:19:23,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:19:23,051 INFO L93 Difference]: Finished difference Result 3275 states and 5799 transitions. [2025-01-09 05:19:23,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 05:19:23,051 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 177 [2025-01-09 05:19:23,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:19:23,066 INFO L225 Difference]: With dead ends: 3275 [2025-01-09 05:19:23,067 INFO L226 Difference]: Without dead ends: 2913 [2025-01-09 05:19:23,069 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 05:19:23,072 INFO L435 NwaCegarLoop]: 4478 mSDtfsCounter, 5119 mSDsluCounter, 9217 mSDsCounter, 0 mSdLazyCounter, 637 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5139 SdHoareTripleChecker+Valid, 13695 SdHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-09 05:19:23,072 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5139 Valid, 13695 Invalid, 697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 637 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-09 05:19:23,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2913 states. [2025-01-09 05:19:23,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2913 to 2882. [2025-01-09 05:19:23,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2882 states, 2818 states have (on average 1.7995031937544357) internal successors, (5071), 2822 states have internal predecessors, (5071), 49 states have call successors, (49), 13 states have call predecessors, (49), 13 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2025-01-09 05:19:23,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2882 states to 2882 states and 5168 transitions. [2025-01-09 05:19:23,140 INFO L78 Accepts]: Start accepts. Automaton has 2882 states and 5168 transitions. Word has length 177 [2025-01-09 05:19:23,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:19:23,140 INFO L471 AbstractCegarLoop]: Abstraction has 2882 states and 5168 transitions. [2025-01-09 05:19:23,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:19:23,141 INFO L276 IsEmpty]: Start isEmpty. Operand 2882 states and 5168 transitions. [2025-01-09 05:19:23,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2025-01-09 05:19:23,142 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:19:23,142 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] [2025-01-09 05:19:23,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 05:19:23,142 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:19:23,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:19:23,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1581904178, now seen corresponding path program 1 times [2025-01-09 05:19:23,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:19:23,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832200836] [2025-01-09 05:19:23,143 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:19:23,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:19:23,160 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 177 statements into 1 equivalence classes. [2025-01-09 05:19:23,171 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 177 of 177 statements. [2025-01-09 05:19:23,171 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:19:23,171 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:19:23,383 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 05:19:23,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:19:23,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832200836] [2025-01-09 05:19:23,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832200836] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:19:23,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:19:23,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 05:19:23,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136812185] [2025-01-09 05:19:23,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:19:23,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 05:19:23,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:19:23,385 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 05:19:23,385 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 05:19:23,385 INFO L87 Difference]: Start difference. First operand 2882 states and 5168 transitions. Second operand has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:19:24,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:19:24,231 INFO L93 Difference]: Finished difference Result 4110 states and 7158 transitions. [2025-01-09 05:19:24,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 05:19:24,232 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 177 [2025-01-09 05:19:24,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:19:24,244 INFO L225 Difference]: With dead ends: 4110 [2025-01-09 05:19:24,244 INFO L226 Difference]: Without dead ends: 3369 [2025-01-09 05:19:24,246 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 05:19:24,247 INFO L435 NwaCegarLoop]: 4753 mSDtfsCounter, 5128 mSDsluCounter, 14312 mSDsCounter, 0 mSdLazyCounter, 1097 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5148 SdHoareTripleChecker+Valid, 19065 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-01-09 05:19:24,247 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5148 Valid, 19065 Invalid, 1131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1097 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-01-09 05:19:24,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3369 states. [2025-01-09 05:19:24,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3369 to 3234. [2025-01-09 05:19:24,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3234 states, 3142 states have (on average 1.776257161043921) internal successors, (5581), 3147 states have internal predecessors, (5581), 70 states have call successors, (70), 19 states have call predecessors, (70), 20 states have return successors, (72), 69 states have call predecessors, (72), 68 states have call successors, (72) [2025-01-09 05:19:24,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3234 states to 3234 states and 5723 transitions. [2025-01-09 05:19:24,333 INFO L78 Accepts]: Start accepts. Automaton has 3234 states and 5723 transitions. Word has length 177 [2025-01-09 05:19:24,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:19:24,333 INFO L471 AbstractCegarLoop]: Abstraction has 3234 states and 5723 transitions. [2025-01-09 05:19:24,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:19:24,333 INFO L276 IsEmpty]: Start isEmpty. Operand 3234 states and 5723 transitions. [2025-01-09 05:19:24,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2025-01-09 05:19:24,337 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:19:24,337 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] [2025-01-09 05:19:24,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 05:19:24,337 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:19:24,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:19:24,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1307871440, now seen corresponding path program 1 times [2025-01-09 05:19:24,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:19:24,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239092741] [2025-01-09 05:19:24,338 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:19:24,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:19:24,349 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 177 statements into 1 equivalence classes. [2025-01-09 05:19:24,354 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 177 of 177 statements. [2025-01-09 05:19:24,354 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:19:24,354 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:19:24,533 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 05:19:24,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:19:24,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239092741] [2025-01-09 05:19:24,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239092741] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:19:24,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:19:24,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 05:19:24,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525890296] [2025-01-09 05:19:24,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:19:24,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 05:19:24,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:19:24,536 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 05:19:24,537 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 05:19:24,537 INFO L87 Difference]: Start difference. First operand 3234 states and 5723 transitions. Second operand has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:19:25,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:19:25,297 INFO L93 Difference]: Finished difference Result 5236 states and 8962 transitions. [2025-01-09 05:19:25,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 05:19:25,298 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 177 [2025-01-09 05:19:25,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:19:25,314 INFO L225 Difference]: With dead ends: 5236 [2025-01-09 05:19:25,314 INFO L226 Difference]: Without dead ends: 4143 [2025-01-09 05:19:25,318 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 05:19:25,319 INFO L435 NwaCegarLoop]: 4469 mSDtfsCounter, 5156 mSDsluCounter, 13631 mSDsCounter, 0 mSdLazyCounter, 897 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5176 SdHoareTripleChecker+Valid, 18100 SdHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-01-09 05:19:25,319 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5176 Valid, 18100 Invalid, 955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 897 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-01-09 05:19:25,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4143 states. [2025-01-09 05:19:25,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4143 to 3987. [2025-01-09 05:19:25,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3987 states, 3837 states have (on average 1.744070888715142) internal successors, (6692), 3846 states have internal predecessors, (6692), 112 states have call successors, (112), 31 states have call predecessors, (112), 36 states have return successors, (126), 113 states have call predecessors, (126), 110 states have call successors, (126) [2025-01-09 05:19:25,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3987 states to 3987 states and 6930 transitions. [2025-01-09 05:19:25,443 INFO L78 Accepts]: Start accepts. Automaton has 3987 states and 6930 transitions. Word has length 177 [2025-01-09 05:19:25,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:19:25,443 INFO L471 AbstractCegarLoop]: Abstraction has 3987 states and 6930 transitions. [2025-01-09 05:19:25,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:19:25,444 INFO L276 IsEmpty]: Start isEmpty. Operand 3987 states and 6930 transitions. [2025-01-09 05:19:25,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2025-01-09 05:19:25,446 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:19:25,447 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] [2025-01-09 05:19:25,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 05:19:25,447 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:19:25,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:19:25,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1092761970, now seen corresponding path program 1 times [2025-01-09 05:19:25,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:19:25,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449015303] [2025-01-09 05:19:25,448 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:19:25,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:19:25,460 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 177 statements into 1 equivalence classes. [2025-01-09 05:19:25,465 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 177 of 177 statements. [2025-01-09 05:19:25,465 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:19:25,465 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:19:25,604 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 05:19:25,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:19:25,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449015303] [2025-01-09 05:19:25,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449015303] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:19:25,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:19:25,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 05:19:25,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701537292] [2025-01-09 05:19:25,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:19:25,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 05:19:25,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:19:25,606 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 05:19:25,606 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 05:19:25,606 INFO L87 Difference]: Start difference. First operand 3987 states and 6930 transitions. Second operand has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:19:26,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:19:26,328 INFO L93 Difference]: Finished difference Result 7679 states and 12955 transitions. [2025-01-09 05:19:26,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 05:19:26,329 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 177 [2025-01-09 05:19:26,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:19:26,349 INFO L225 Difference]: With dead ends: 7679 [2025-01-09 05:19:26,350 INFO L226 Difference]: Without dead ends: 5833 [2025-01-09 05:19:26,357 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 05:19:26,357 INFO L435 NwaCegarLoop]: 4746 mSDtfsCounter, 5118 mSDsluCounter, 14291 mSDsCounter, 0 mSdLazyCounter, 1097 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5138 SdHoareTripleChecker+Valid, 19037 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-01-09 05:19:26,357 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5138 Valid, 19037 Invalid, 1131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1097 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-01-09 05:19:26,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5833 states. [2025-01-09 05:19:26,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5833 to 5634. [2025-01-09 05:19:26,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5634 states, 5362 states have (on average 1.7113017530772099) internal successors, (9176), 5385 states have internal predecessors, (9176), 196 states have call successors, (196), 55 states have call predecessors, (196), 74 states have return successors, (258), 201 states have call predecessors, (258), 194 states have call successors, (258) [2025-01-09 05:19:26,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5634 states to 5634 states and 9630 transitions. [2025-01-09 05:19:26,502 INFO L78 Accepts]: Start accepts. Automaton has 5634 states and 9630 transitions. Word has length 177 [2025-01-09 05:19:26,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:19:26,503 INFO L471 AbstractCegarLoop]: Abstraction has 5634 states and 9630 transitions. [2025-01-09 05:19:26,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:19:26,503 INFO L276 IsEmpty]: Start isEmpty. Operand 5634 states and 9630 transitions. [2025-01-09 05:19:26,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2025-01-09 05:19:26,507 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:19:26,507 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:19:26,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-09 05:19:26,507 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:19:26,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:19:26,508 INFO L85 PathProgramCache]: Analyzing trace with hash 353818896, now seen corresponding path program 1 times [2025-01-09 05:19:26,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:19:26,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213009484] [2025-01-09 05:19:26,508 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:19:26,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:19:26,516 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 177 statements into 1 equivalence classes. [2025-01-09 05:19:26,521 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 177 of 177 statements. [2025-01-09 05:19:26,522 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:19:26,522 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:19:26,696 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 05:19:26,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:19:26,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213009484] [2025-01-09 05:19:26,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213009484] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:19:26,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:19:26,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 05:19:26,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723895289] [2025-01-09 05:19:26,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:19:26,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 05:19:26,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:19:26,697 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 05:19:26,697 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 05:19:26,697 INFO L87 Difference]: Start difference. First operand 5634 states and 9630 transitions. Second operand has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:19:27,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:19:27,454 INFO L93 Difference]: Finished difference Result 13072 states and 21997 transitions. [2025-01-09 05:19:27,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 05:19:27,454 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 177 [2025-01-09 05:19:27,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:19:27,501 INFO L225 Difference]: With dead ends: 13072 [2025-01-09 05:19:27,501 INFO L226 Difference]: Without dead ends: 9579 [2025-01-09 05:19:27,514 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 05:19:27,515 INFO L435 NwaCegarLoop]: 4739 mSDtfsCounter, 5110 mSDsluCounter, 14272 mSDsCounter, 0 mSdLazyCounter, 1097 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5130 SdHoareTripleChecker+Valid, 19011 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-01-09 05:19:27,516 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5130 Valid, 19011 Invalid, 1131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1097 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-01-09 05:19:27,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9579 states. [2025-01-09 05:19:27,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9579 to 9306. [2025-01-09 05:19:27,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9306 states, 8772 states have (on average 1.6919744642042864) internal successors, (14842), 8841 states have internal predecessors, (14842), 364 states have call successors, (364), 103 states have call predecessors, (364), 168 states have return successors, (618), 377 states have call predecessors, (618), 362 states have call successors, (618) [2025-01-09 05:19:27,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9306 states to 9306 states and 15824 transitions. [2025-01-09 05:19:27,762 INFO L78 Accepts]: Start accepts. Automaton has 9306 states and 15824 transitions. Word has length 177 [2025-01-09 05:19:27,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:19:27,763 INFO L471 AbstractCegarLoop]: Abstraction has 9306 states and 15824 transitions. [2025-01-09 05:19:27,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:19:27,764 INFO L276 IsEmpty]: Start isEmpty. Operand 9306 states and 15824 transitions. [2025-01-09 05:19:27,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2025-01-09 05:19:27,769 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:19:27,769 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] [2025-01-09 05:19:27,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-09 05:19:27,769 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:19:27,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:19:27,770 INFO L85 PathProgramCache]: Analyzing trace with hash 739681298, now seen corresponding path program 1 times [2025-01-09 05:19:27,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:19:27,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319889101] [2025-01-09 05:19:27,770 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:19:27,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:19:27,780 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 177 statements into 1 equivalence classes. [2025-01-09 05:19:27,785 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 177 of 177 statements. [2025-01-09 05:19:27,786 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:19:27,786 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:19:27,910 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 05:19:27,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:19:27,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319889101] [2025-01-09 05:19:27,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319889101] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:19:27,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:19:27,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 05:19:27,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265310048] [2025-01-09 05:19:27,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:19:27,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 05:19:27,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:19:27,912 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 05:19:27,912 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 05:19:27,912 INFO L87 Difference]: Start difference. First operand 9306 states and 15824 transitions. Second operand has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:19:28,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:19:28,848 INFO L93 Difference]: Finished difference Result 25352 states and 43321 transitions. [2025-01-09 05:19:28,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 05:19:28,849 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 177 [2025-01-09 05:19:28,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:19:28,907 INFO L225 Difference]: With dead ends: 25352 [2025-01-09 05:19:28,907 INFO L226 Difference]: Without dead ends: 18187 [2025-01-09 05:19:28,931 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 05:19:28,931 INFO L435 NwaCegarLoop]: 4736 mSDtfsCounter, 5105 mSDsluCounter, 14263 mSDsCounter, 0 mSdLazyCounter, 1097 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5125 SdHoareTripleChecker+Valid, 18999 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-01-09 05:19:28,932 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5125 Valid, 18999 Invalid, 1131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1097 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-01-09 05:19:28,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18187 states. [2025-01-09 05:19:29,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18187 to 17757. [2025-01-09 05:19:29,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17757 states, 16645 states have (on average 1.6952838690297387) internal successors, (28218), 16860 states have internal predecessors, (28218), 700 states have call successors, (700), 199 states have call predecessors, (700), 410 states have return successors, (1722), 729 states have call predecessors, (1722), 698 states have call successors, (1722) [2025-01-09 05:19:29,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17757 states to 17757 states and 30640 transitions. [2025-01-09 05:19:29,516 INFO L78 Accepts]: Start accepts. Automaton has 17757 states and 30640 transitions. Word has length 177 [2025-01-09 05:19:29,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:19:29,517 INFO L471 AbstractCegarLoop]: Abstraction has 17757 states and 30640 transitions. [2025-01-09 05:19:29,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:19:29,517 INFO L276 IsEmpty]: Start isEmpty. Operand 17757 states and 30640 transitions. [2025-01-09 05:19:29,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2025-01-09 05:19:29,525 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:19:29,525 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] [2025-01-09 05:19:29,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-09 05:19:29,525 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:19:29,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:19:29,526 INFO L85 PathProgramCache]: Analyzing trace with hash 475033808, now seen corresponding path program 1 times [2025-01-09 05:19:29,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:19:29,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027311797] [2025-01-09 05:19:29,526 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:19:29,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:19:29,534 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 177 statements into 1 equivalence classes. [2025-01-09 05:19:29,539 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 177 of 177 statements. [2025-01-09 05:19:29,539 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:19:29,539 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:19:29,647 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 05:19:29,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:19:29,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027311797] [2025-01-09 05:19:29,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027311797] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:19:29,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:19:29,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 05:19:29,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853536686] [2025-01-09 05:19:29,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:19:29,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 05:19:29,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:19:29,649 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 05:19:29,649 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 05:19:29,649 INFO L87 Difference]: Start difference. First operand 17757 states and 30640 transitions. Second operand has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:19:30,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:19:30,228 INFO L93 Difference]: Finished difference Result 38273 states and 67446 transitions. [2025-01-09 05:19:30,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 05:19:30,229 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 177 [2025-01-09 05:19:30,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:19:30,304 INFO L225 Difference]: With dead ends: 38273 [2025-01-09 05:19:30,305 INFO L226 Difference]: Without dead ends: 22657 [2025-01-09 05:19:30,353 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 05:19:30,355 INFO L435 NwaCegarLoop]: 4404 mSDtfsCounter, 4774 mSDsluCounter, 8649 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4794 SdHoareTripleChecker+Valid, 13053 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-09 05:19:30,356 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4794 Valid, 13053 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-09 05:19:30,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22657 states. [2025-01-09 05:19:31,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22657 to 17757. [2025-01-09 05:19:31,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17757 states, 16645 states have (on average 1.693301291679183) internal successors, (28185), 16860 states have internal predecessors, (28185), 700 states have call successors, (700), 199 states have call predecessors, (700), 410 states have return successors, (1722), 729 states have call predecessors, (1722), 698 states have call successors, (1722) [2025-01-09 05:19:31,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17757 states to 17757 states and 30607 transitions. [2025-01-09 05:19:31,291 INFO L78 Accepts]: Start accepts. Automaton has 17757 states and 30607 transitions. Word has length 177 [2025-01-09 05:19:31,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:19:31,292 INFO L471 AbstractCegarLoop]: Abstraction has 17757 states and 30607 transitions. [2025-01-09 05:19:31,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:19:31,292 INFO L276 IsEmpty]: Start isEmpty. Operand 17757 states and 30607 transitions. [2025-01-09 05:19:31,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2025-01-09 05:19:31,298 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:19:31,298 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] [2025-01-09 05:19:31,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-01-09 05:19:31,298 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:19:31,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:19:31,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1888807854, now seen corresponding path program 1 times [2025-01-09 05:19:31,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:19:31,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261564878] [2025-01-09 05:19:31,299 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:19:31,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:19:31,312 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 177 statements into 1 equivalence classes. [2025-01-09 05:19:31,317 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 177 of 177 statements. [2025-01-09 05:19:31,318 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:19:31,318 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:19:31,435 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 05:19:31,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:19:31,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261564878] [2025-01-09 05:19:31,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261564878] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:19:31,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:19:31,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 05:19:31,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847871980] [2025-01-09 05:19:31,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:19:31,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 05:19:31,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:19:31,437 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 05:19:31,437 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 05:19:31,437 INFO L87 Difference]: Start difference. First operand 17757 states and 30607 transitions. Second operand has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:19:32,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:19:32,787 INFO L93 Difference]: Finished difference Result 53887 states and 95068 transitions. [2025-01-09 05:19:32,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 05:19:32,787 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 177 [2025-01-09 05:19:32,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:19:32,903 INFO L225 Difference]: With dead ends: 53887 [2025-01-09 05:19:32,903 INFO L226 Difference]: Without dead ends: 38271 [2025-01-09 05:19:32,957 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 05:19:32,957 INFO L435 NwaCegarLoop]: 4728 mSDtfsCounter, 5092 mSDsluCounter, 14240 mSDsCounter, 0 mSdLazyCounter, 1097 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5112 SdHoareTripleChecker+Valid, 18968 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-01-09 05:19:32,957 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5112 Valid, 18968 Invalid, 1131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1097 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-01-09 05:19:32,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38271 states. [2025-01-09 05:19:33,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38271 to 37575. [2025-01-09 05:19:34,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37575 states, 35145 states have (on average 1.7138995589699815) internal successors, (60235), 35814 states have internal predecessors, (60235), 1372 states have call successors, (1372), 391 states have call predecessors, (1372), 1056 states have return successors, (5466), 1433 states have call predecessors, (5466), 1370 states have call successors, (5466) [2025-01-09 05:19:34,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37575 states to 37575 states and 67073 transitions. [2025-01-09 05:19:34,141 INFO L78 Accepts]: Start accepts. Automaton has 37575 states and 67073 transitions. Word has length 177 [2025-01-09 05:19:34,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:19:34,142 INFO L471 AbstractCegarLoop]: Abstraction has 37575 states and 67073 transitions. [2025-01-09 05:19:34,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:19:34,142 INFO L276 IsEmpty]: Start isEmpty. Operand 37575 states and 67073 transitions. [2025-01-09 05:19:34,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2025-01-09 05:19:34,153 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:19:34,154 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] [2025-01-09 05:19:34,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-01-09 05:19:34,154 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:19:34,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:19:34,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1082980496, now seen corresponding path program 1 times [2025-01-09 05:19:34,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:19:34,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491514210] [2025-01-09 05:19:34,155 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:19:34,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:19:34,163 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 177 statements into 1 equivalence classes. [2025-01-09 05:19:34,168 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 177 of 177 statements. [2025-01-09 05:19:34,169 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:19:34,169 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:19:34,263 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 05:19:34,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:19:34,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491514210] [2025-01-09 05:19:34,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491514210] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:19:34,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:19:34,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 05:19:34,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872014259] [2025-01-09 05:19:34,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:19:34,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 05:19:34,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:19:34,268 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 05:19:34,268 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 05:19:34,268 INFO L87 Difference]: Start difference. First operand 37575 states and 67073 transitions. Second operand has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:19:37,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:19:37,245 INFO L93 Difference]: Finished difference Result 122387 states and 227212 transitions. [2025-01-09 05:19:37,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 05:19:37,246 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 177 [2025-01-09 05:19:37,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:19:37,601 INFO L225 Difference]: With dead ends: 122387 [2025-01-09 05:19:37,602 INFO L226 Difference]: Without dead ends: 86953 [2025-01-09 05:19:37,709 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 05:19:37,710 INFO L435 NwaCegarLoop]: 4725 mSDtfsCounter, 5087 mSDsluCounter, 14231 mSDsCounter, 0 mSdLazyCounter, 1097 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5107 SdHoareTripleChecker+Valid, 18956 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-01-09 05:19:37,710 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5107 Valid, 18956 Invalid, 1131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1097 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-01-09 05:19:37,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86953 states. [2025-01-09 05:19:40,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86953 to 85716. [2025-01-09 05:19:41,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85716 states, 80164 states have (on average 1.7446110473529266) internal successors, (139855), 82227 states have internal predecessors, (139855), 2716 states have call successors, (2716), 775 states have call predecessors, (2716), 2834 states have return successors, (19098), 2841 states have call predecessors, (19098), 2714 states have call successors, (19098) [2025-01-09 05:19:41,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85716 states to 85716 states and 161669 transitions. [2025-01-09 05:19:41,396 INFO L78 Accepts]: Start accepts. Automaton has 85716 states and 161669 transitions. Word has length 177 [2025-01-09 05:19:41,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:19:41,396 INFO L471 AbstractCegarLoop]: Abstraction has 85716 states and 161669 transitions. [2025-01-09 05:19:41,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:19:41,397 INFO L276 IsEmpty]: Start isEmpty. Operand 85716 states and 161669 transitions. [2025-01-09 05:19:41,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2025-01-09 05:19:41,442 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:19:41,442 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 05:19:41,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-01-09 05:19:41,443 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:19:41,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:19:41,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1315007342, now seen corresponding path program 1 times [2025-01-09 05:19:41,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:19:41,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942376580] [2025-01-09 05:19:41,443 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:19:41,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:19:41,455 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 177 statements into 1 equivalence classes. [2025-01-09 05:19:41,460 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 177 of 177 statements. [2025-01-09 05:19:41,461 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:19:41,461 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:19:41,832 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 05:19:41,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:19:41,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942376580] [2025-01-09 05:19:41,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942376580] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:19:41,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:19:41,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 05:19:41,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964948678] [2025-01-09 05:19:41,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:19:41,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 05:19:41,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:19:41,833 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 05:19:41,834 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 05:19:41,834 INFO L87 Difference]: Start difference. First operand 85716 states and 161669 transitions. Second operand has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:19:46,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:19:46,638 INFO L93 Difference]: Finished difference Result 291888 states and 581294 transitions. [2025-01-09 05:19:46,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 05:19:46,638 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 177 [2025-01-09 05:19:46,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:19:47,721 INFO L225 Difference]: With dead ends: 291888 [2025-01-09 05:19:47,721 INFO L226 Difference]: Without dead ends: 208313 [2025-01-09 05:19:47,897 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 05:19:47,897 INFO L435 NwaCegarLoop]: 4452 mSDtfsCounter, 5127 mSDsluCounter, 13579 mSDsCounter, 0 mSdLazyCounter, 897 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5147 SdHoareTripleChecker+Valid, 18031 SdHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-09 05:19:47,897 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5147 Valid, 18031 Invalid, 955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 897 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-09 05:19:48,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208313 states. [2025-01-09 05:19:56,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208313 to 206055. [2025-01-09 05:19:56,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206055 states, 192801 states have (on average 1.777848662610671) internal successors, (342771), 199110 states have internal predecessors, (342771), 5404 states have call successors, (5404), 1543 states have call predecessors, (5404), 7848 states have return successors, (70938), 5657 states have call predecessors, (70938), 5402 states have call successors, (70938) [2025-01-09 05:19:58,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206055 states to 206055 states and 419113 transitions. [2025-01-09 05:19:58,152 INFO L78 Accepts]: Start accepts. Automaton has 206055 states and 419113 transitions. Word has length 177 [2025-01-09 05:19:58,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:19:58,152 INFO L471 AbstractCegarLoop]: Abstraction has 206055 states and 419113 transitions. [2025-01-09 05:19:58,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:19:58,153 INFO L276 IsEmpty]: Start isEmpty. Operand 206055 states and 419113 transitions. [2025-01-09 05:19:58,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2025-01-09 05:19:58,199 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:19:58,199 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] [2025-01-09 05:19:58,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-01-09 05:19:58,200 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:19:58,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:19:58,200 INFO L85 PathProgramCache]: Analyzing trace with hash -976719792, now seen corresponding path program 1 times [2025-01-09 05:19:58,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:19:58,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530020140] [2025-01-09 05:19:58,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:19:58,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:19:58,214 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 177 statements into 1 equivalence classes. [2025-01-09 05:19:58,222 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 177 of 177 statements. [2025-01-09 05:19:58,222 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:19:58,222 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:19:58,320 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 05:19:58,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:19:58,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530020140] [2025-01-09 05:19:58,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530020140] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:19:58,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:19:58,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 05:19:58,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419029160] [2025-01-09 05:19:58,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:19:58,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 05:19:58,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:19:58,322 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 05:19:58,322 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 05:19:58,322 INFO L87 Difference]: Start difference. First operand 206055 states and 419113 transitions. Second operand has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 05:20:07,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:20:07,118 INFO L93 Difference]: Finished difference Result 514977 states and 1090614 transitions. [2025-01-09 05:20:07,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 05:20:07,119 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 177 [2025-01-09 05:20:07,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:20:09,020 INFO L225 Difference]: With dead ends: 514977 [2025-01-09 05:20:09,020 INFO L226 Difference]: Without dead ends: 311063