./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label42+token_ring.14.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/Problem05_label42+token_ring.14.cil.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 baf2679bf12305063b7a185b7ceccd8123ae67f841713533125dfbe04aeffae0 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 05:17:26,326 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 05:17:26,387 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 05:17:26,391 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 05:17:26,395 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 05:17:26,419 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 05:17:26,420 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 05:17:26,420 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 05:17:26,420 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 05:17:26,421 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 05:17:26,421 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 05:17:26,421 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 05:17:26,421 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 05:17:26,421 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 05:17:26,422 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 05:17:26,422 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 05:17:26,422 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 05:17:26,422 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 05:17:26,422 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 05:17:26,422 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 05:17:26,422 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 05:17:26,422 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 05:17:26,422 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 05:17:26,422 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 05:17:26,422 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 05:17:26,422 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 05:17:26,422 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 05:17:26,422 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 05:17:26,423 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 05:17:26,423 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 05:17:26,423 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 05:17:26,423 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 05:17:26,423 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 05:17:26,423 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 05:17:26,423 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 05:17:26,423 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 05:17:26,423 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 05:17:26,423 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 05:17:26,423 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 05:17:26,423 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 05:17:26,423 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 05:17:26,423 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 05:17:26,424 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 05:17:26,424 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 05:17:26,424 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 05:17:26,424 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 05:17:26,424 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 05:17:26,424 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 05:17:26,424 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 -> baf2679bf12305063b7a185b7ceccd8123ae67f841713533125dfbe04aeffae0 [2025-01-09 05:17:26,660 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 05:17:26,665 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 05:17:26,667 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 05:17:26,668 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 05:17:26,668 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 05:17:26,669 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label42+token_ring.14.cil.c [2025-01-09 05:17:27,827 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/88444195c/0698df7aa6934a0f974c412d8b81114f/FLAGa1cde6fae [2025-01-09 05:17:28,498 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 05:17:28,499 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.14.cil.c [2025-01-09 05:17:28,553 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/88444195c/0698df7aa6934a0f974c412d8b81114f/FLAGa1cde6fae [2025-01-09 05:17:28,913 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/88444195c/0698df7aa6934a0f974c412d8b81114f [2025-01-09 05:17:28,915 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 05:17:28,916 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 05:17:28,917 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 05:17:28,918 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 05:17:28,920 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 05:17:28,921 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:17:28" (1/1) ... [2025-01-09 05:17:28,922 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e94045c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:28, skipping insertion in model container [2025-01-09 05:17:28,922 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:17:28" (1/1) ... [2025-01-09 05:17:29,045 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 05:17:30,188 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.14.cil.c[378560,378573] [2025-01-09 05:17:30,222 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.14.cil.c[383339,383352] [2025-01-09 05:17:30,448 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 05:17:30,456 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 05:17:30,961 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.14.cil.c[378560,378573] [2025-01-09 05:17:30,967 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.14.cil.c[383339,383352] [2025-01-09 05:17:30,993 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 05:17:31,042 INFO L204 MainTranslator]: Completed translation [2025-01-09 05:17:31,043 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:31 WrapperNode [2025-01-09 05:17:31,044 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 05:17:31,044 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 05:17:31,045 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 05:17:31,045 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 05:17:31,051 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:31" (1/1) ... [2025-01-09 05:17:31,115 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:31" (1/1) ... [2025-01-09 05:17:31,366 INFO L138 Inliner]: procedures = 68, calls = 78, calls flagged for inlining = 45, calls inlined = 45, statements flattened = 13189 [2025-01-09 05:17:31,367 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 05:17:31,367 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 05:17:31,368 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 05:17:31,368 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 05:17:31,375 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:31" (1/1) ... [2025-01-09 05:17:31,375 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:31" (1/1) ... [2025-01-09 05:17:31,416 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:31" (1/1) ... [2025-01-09 05:17:31,510 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-01-09 05:17:31,511 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:31" (1/1) ... [2025-01-09 05:17:31,511 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:31" (1/1) ... [2025-01-09 05:17:31,754 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:31" (1/1) ... [2025-01-09 05:17:31,774 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:31" (1/1) ... [2025-01-09 05:17:31,804 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:31" (1/1) ... [2025-01-09 05:17:31,828 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:31" (1/1) ... [2025-01-09 05:17:31,849 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:31" (1/1) ... [2025-01-09 05:17:31,894 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 05:17:31,896 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 05:17:31,896 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 05:17:31,896 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 05:17:31,897 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:31" (1/1) ... [2025-01-09 05:17:31,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 05:17:31,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 05:17:31,921 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 05:17:31,925 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 05:17:31,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 05:17:31,940 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2025-01-09 05:17:31,940 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2025-01-09 05:17:31,941 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2025-01-09 05:17:31,941 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2025-01-09 05:17:31,941 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2025-01-09 05:17:31,941 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2025-01-09 05:17:31,941 INFO L130 BoogieDeclarations]: Found specification of procedure error [2025-01-09 05:17:31,941 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2025-01-09 05:17:31,941 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2025-01-09 05:17:31,941 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2025-01-09 05:17:31,942 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2025-01-09 05:17:31,942 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2025-01-09 05:17:31,942 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2025-01-09 05:17:31,942 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2025-01-09 05:17:31,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 05:17:31,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 05:17:31,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 05:17:32,048 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 05:17:32,049 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 05:17:38,052 INFO L? ?]: Removed 1759 outVars from TransFormulas that were not future-live. [2025-01-09 05:17:38,052 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 05:17:38,111 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 05:17:38,111 INFO L312 CfgBuilder]: Removed 16 assume(true) statements. [2025-01-09 05:17:38,112 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:17:38 BoogieIcfgContainer [2025-01-09 05:17:38,112 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 05:17:38,113 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 05:17:38,113 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 05:17:38,116 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 05:17:38,117 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 05:17:28" (1/3) ... [2025-01-09 05:17:38,117 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d4cf40f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:17:38, skipping insertion in model container [2025-01-09 05:17:38,117 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:31" (2/3) ... [2025-01-09 05:17:38,117 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d4cf40f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:17:38, skipping insertion in model container [2025-01-09 05:17:38,117 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:17:38" (3/3) ... [2025-01-09 05:17:38,118 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem05_label42+token_ring.14.cil.c [2025-01-09 05:17:38,128 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 05:17:38,131 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem05_label42+token_ring.14.cil.c that has 8 procedures, 2569 locations, 1 initial locations, 16 loop locations, and 2 error locations. [2025-01-09 05:17:38,218 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 05:17:38,229 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;@3c631ada, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 05:17:38,229 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-01-09 05:17:38,238 INFO L276 IsEmpty]: Start isEmpty. Operand has 2569 states, 2532 states have (on average 1.8368878357030016) internal successors, (4651), 2536 states have internal predecessors, (4651), 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 05:17:38,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2025-01-09 05:17:38,250 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:17:38,251 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 05:17:38,251 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:17:38,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:17:38,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1163724122, now seen corresponding path program 1 times [2025-01-09 05:17:38,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:17:38,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413471436] [2025-01-09 05:17:38,261 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:17:38,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:17:38,344 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 177 statements into 1 equivalence classes. [2025-01-09 05:17:38,376 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 177 of 177 statements. [2025-01-09 05:17:38,377 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:17:38,377 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:17:38,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:17:38,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:17:38,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413471436] [2025-01-09 05:17:38,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413471436] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:17:38,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:17:38,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 05:17:38,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221089555] [2025-01-09 05:17:38,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:17:38,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 05:17:38,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:17:38,643 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 05:17:38,644 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 05:17:38,650 INFO L87 Difference]: Start difference. First operand has 2569 states, 2532 states have (on average 1.8368878357030016) internal successors, (4651), 2536 states have internal predecessors, (4651), 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 05:17:38,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:17:38,807 INFO L93 Difference]: Finished difference Result 5130 states and 9401 transitions. [2025-01-09 05:17:38,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 05:17:38,808 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 05:17:38,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:17:38,826 INFO L225 Difference]: With dead ends: 5130 [2025-01-09 05:17:38,827 INFO L226 Difference]: Without dead ends: 2501 [2025-01-09 05:17:38,834 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 05:17:38,836 INFO L435 NwaCegarLoop]: 4626 mSDtfsCounter, 598 mSDsluCounter, 4022 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 598 SdHoareTripleChecker+Valid, 8648 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 05:17:38,836 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [598 Valid, 8648 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 05:17:38,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2501 states. [2025-01-09 05:17:38,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2501 to 2501. [2025-01-09 05:17:38,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2501 states, 2465 states have (on average 1.8271805273833672) internal successors, (4504), 2468 states have internal predecessors, (4504), 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 05:17:38,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2501 states to 2501 states and 4558 transitions. [2025-01-09 05:17:38,964 INFO L78 Accepts]: Start accepts. Automaton has 2501 states and 4558 transitions. Word has length 177 [2025-01-09 05:17:38,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:17:38,965 INFO L471 AbstractCegarLoop]: Abstraction has 2501 states and 4558 transitions. [2025-01-09 05:17:38,966 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 05:17:38,966 INFO L276 IsEmpty]: Start isEmpty. Operand 2501 states and 4558 transitions. [2025-01-09 05:17:38,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2025-01-09 05:17:38,974 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:17:38,975 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 05:17:38,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 05:17:38,975 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:17:38,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:17:38,976 INFO L85 PathProgramCache]: Analyzing trace with hash 244001828, now seen corresponding path program 1 times [2025-01-09 05:17:38,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:17:38,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485673614] [2025-01-09 05:17:38,976 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:17:38,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:17:38,991 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 177 statements into 1 equivalence classes. [2025-01-09 05:17:39,006 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 177 of 177 statements. [2025-01-09 05:17:39,006 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:17:39,006 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:17:39,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:17:39,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:17:39,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485673614] [2025-01-09 05:17:39,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485673614] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:17:39,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:17:39,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 05:17:39,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801760011] [2025-01-09 05:17:39,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:17:39,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 05:17:39,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:17:39,133 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 05:17:39,133 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 05:17:39,134 INFO L87 Difference]: Start difference. First operand 2501 states and 4558 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 05:17:39,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:17:39,195 INFO L93 Difference]: Finished difference Result 2865 states and 5131 transitions. [2025-01-09 05:17:39,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 05:17:39,195 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 05:17:39,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:17:39,206 INFO L225 Difference]: With dead ends: 2865 [2025-01-09 05:17:39,206 INFO L226 Difference]: Without dead ends: 2501 [2025-01-09 05:17:39,207 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 05:17:39,208 INFO L435 NwaCegarLoop]: 4556 mSDtfsCounter, 584 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 8514 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 05:17:39,208 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [584 Valid, 8514 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 05:17:39,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2501 states. [2025-01-09 05:17:39,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2501 to 2501. [2025-01-09 05:17:39,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2501 states, 2465 states have (on average 1.8267748478701826) internal successors, (4503), 2468 states have internal predecessors, (4503), 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 05:17:39,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2501 states to 2501 states and 4557 transitions. [2025-01-09 05:17:39,262 INFO L78 Accepts]: Start accepts. Automaton has 2501 states and 4557 transitions. Word has length 177 [2025-01-09 05:17:39,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:17:39,263 INFO L471 AbstractCegarLoop]: Abstraction has 2501 states and 4557 transitions. [2025-01-09 05:17:39,264 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 05:17:39,264 INFO L276 IsEmpty]: Start isEmpty. Operand 2501 states and 4557 transitions. [2025-01-09 05:17:39,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2025-01-09 05:17:39,267 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:17:39,267 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 05:17:39,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 05:17:39,267 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:17:39,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:17:39,269 INFO L85 PathProgramCache]: Analyzing trace with hash -423380062, now seen corresponding path program 1 times [2025-01-09 05:17:39,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:17:39,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583204682] [2025-01-09 05:17:39,269 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:17:39,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:17:39,288 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 177 statements into 1 equivalence classes. [2025-01-09 05:17:39,300 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 177 of 177 statements. [2025-01-09 05:17:39,301 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:17:39,301 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:17:39,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:17:39,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:17:39,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583204682] [2025-01-09 05:17:39,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583204682] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:17:39,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:17:39,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 05:17:39,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545830150] [2025-01-09 05:17:39,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:17:39,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 05:17:39,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:17:39,496 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 05:17:39,496 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 05:17:39,497 INFO L87 Difference]: Start difference. First operand 2501 states and 4557 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 05:17:40,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:17:40,105 INFO L93 Difference]: Finished difference Result 3269 states and 5787 transitions. [2025-01-09 05:17:40,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 05:17:40,105 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 05:17:40,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:17:40,117 INFO L225 Difference]: With dead ends: 3269 [2025-01-09 05:17:40,117 INFO L226 Difference]: Without dead ends: 2909 [2025-01-09 05:17:40,120 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-09 05:17:40,120 INFO L435 NwaCegarLoop]: 4423 mSDtfsCounter, 5115 mSDsluCounter, 9103 mSDsCounter, 0 mSdLazyCounter, 637 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5135 SdHoareTripleChecker+Valid, 13526 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 05:17:40,121 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5135 Valid, 13526 Invalid, 697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 637 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-09 05:17:40,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2909 states. [2025-01-09 05:17:40,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2909 to 2878. [2025-01-09 05:17:40,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2878 states, 2814 states have (on average 1.7992181947405828) internal successors, (5063), 2818 states have internal predecessors, (5063), 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 05:17:40,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2878 states to 2878 states and 5160 transitions. [2025-01-09 05:17:40,186 INFO L78 Accepts]: Start accepts. Automaton has 2878 states and 5160 transitions. Word has length 177 [2025-01-09 05:17:40,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:17:40,186 INFO L471 AbstractCegarLoop]: Abstraction has 2878 states and 5160 transitions. [2025-01-09 05:17:40,187 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 05:17:40,187 INFO L276 IsEmpty]: Start isEmpty. Operand 2878 states and 5160 transitions. [2025-01-09 05:17:40,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2025-01-09 05:17:40,188 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:17:40,189 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 05:17:40,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 05:17:40,189 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:17:40,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:17:40,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1210930334, now seen corresponding path program 1 times [2025-01-09 05:17:40,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:17:40,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905159215] [2025-01-09 05:17:40,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:17:40,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:17:40,198 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 177 statements into 1 equivalence classes. [2025-01-09 05:17:40,203 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 177 of 177 statements. [2025-01-09 05:17:40,203 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:17:40,203 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:17:40,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:17:40,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:17:40,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905159215] [2025-01-09 05:17:40,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905159215] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:17:40,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:17:40,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 05:17:40,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820419168] [2025-01-09 05:17:40,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:17:40,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 05:17:40,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:17:40,476 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 05:17:40,476 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 05:17:40,476 INFO L87 Difference]: Start difference. First operand 2878 states and 5160 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 05:17:41,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:17:41,219 INFO L93 Difference]: Finished difference Result 4100 states and 7138 transitions. [2025-01-09 05:17:41,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 05:17:41,220 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 05:17:41,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:17:41,233 INFO L225 Difference]: With dead ends: 4100 [2025-01-09 05:17:41,234 INFO L226 Difference]: Without dead ends: 3363 [2025-01-09 05:17:41,237 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-01-09 05:17:41,238 INFO L435 NwaCegarLoop]: 4745 mSDtfsCounter, 5124 mSDsluCounter, 14284 mSDsCounter, 0 mSdLazyCounter, 1097 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5144 SdHoareTripleChecker+Valid, 19029 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 05:17:41,239 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5144 Valid, 19029 Invalid, 1131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1097 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-01-09 05:17:41,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3363 states. [2025-01-09 05:17:41,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3363 to 3228. [2025-01-09 05:17:41,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3228 states, 3136 states have (on average 1.775829081632653) internal successors, (5569), 3141 states have internal predecessors, (5569), 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 05:17:41,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3228 states to 3228 states and 5711 transitions. [2025-01-09 05:17:41,327 INFO L78 Accepts]: Start accepts. Automaton has 3228 states and 5711 transitions. Word has length 177 [2025-01-09 05:17:41,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:17:41,328 INFO L471 AbstractCegarLoop]: Abstraction has 3228 states and 5711 transitions. [2025-01-09 05:17:41,328 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 05:17:41,328 INFO L276 IsEmpty]: Start isEmpty. Operand 3228 states and 5711 transitions. [2025-01-09 05:17:41,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2025-01-09 05:17:41,330 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:17:41,330 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 05:17:41,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 05:17:41,330 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:17:41,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:17:41,331 INFO L85 PathProgramCache]: Analyzing trace with hash -194261344, now seen corresponding path program 1 times [2025-01-09 05:17:41,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:17:41,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472690780] [2025-01-09 05:17:41,331 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:17:41,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:17:41,340 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 177 statements into 1 equivalence classes. [2025-01-09 05:17:41,345 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 177 of 177 statements. [2025-01-09 05:17:41,345 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:17:41,346 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:17:41,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:17:41,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:17:41,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472690780] [2025-01-09 05:17:41,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472690780] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:17:41,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:17:41,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 05:17:41,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325751923] [2025-01-09 05:17:41,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:17:41,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 05:17:41,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:17:41,478 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 05:17:41,478 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 05:17:41,479 INFO L87 Difference]: Start difference. First operand 3228 states and 5711 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 05:17:42,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:17:42,118 INFO L93 Difference]: Finished difference Result 5220 states and 8930 transitions. [2025-01-09 05:17:42,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 05:17:42,119 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 05:17:42,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:17:42,134 INFO L225 Difference]: With dead ends: 5220 [2025-01-09 05:17:42,134 INFO L226 Difference]: Without dead ends: 4133 [2025-01-09 05:17:42,139 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-01-09 05:17:42,139 INFO L435 NwaCegarLoop]: 4465 mSDtfsCounter, 5152 mSDsluCounter, 13615 mSDsCounter, 0 mSdLazyCounter, 897 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5172 SdHoareTripleChecker+Valid, 18080 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 05:17:42,139 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5172 Valid, 18080 Invalid, 955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 897 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-09 05:17:42,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4133 states. [2025-01-09 05:17:42,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4133 to 3977. [2025-01-09 05:17:42,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3977 states, 3827 states have (on average 1.743402142670499) internal successors, (6672), 3836 states have internal predecessors, (6672), 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 05:17:42,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3977 states to 3977 states and 6910 transitions. [2025-01-09 05:17:42,240 INFO L78 Accepts]: Start accepts. Automaton has 3977 states and 6910 transitions. Word has length 177 [2025-01-09 05:17:42,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:17:42,241 INFO L471 AbstractCegarLoop]: Abstraction has 3977 states and 6910 transitions. [2025-01-09 05:17:42,241 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 05:17:42,241 INFO L276 IsEmpty]: Start isEmpty. Operand 3977 states and 6910 transitions. [2025-01-09 05:17:42,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2025-01-09 05:17:42,243 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:17:42,244 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 05:17:42,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 05:17:42,244 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:17:42,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:17:42,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1700072542, now seen corresponding path program 1 times [2025-01-09 05:17:42,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:17:42,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155325646] [2025-01-09 05:17:42,245 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:17:42,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:17:42,253 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 177 statements into 1 equivalence classes. [2025-01-09 05:17:42,258 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 177 of 177 statements. [2025-01-09 05:17:42,258 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:17:42,258 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:17:42,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:17:42,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:17:42,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155325646] [2025-01-09 05:17:42,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155325646] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:17:42,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:17:42,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 05:17:42,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297347891] [2025-01-09 05:17:42,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:17:42,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 05:17:42,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:17:42,381 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 05:17:42,381 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 05:17:42,381 INFO L87 Difference]: Start difference. First operand 3977 states and 6910 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 05:17:43,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:17:43,189 INFO L93 Difference]: Finished difference Result 7651 states and 12899 transitions. [2025-01-09 05:17:43,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 05:17:43,190 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 05:17:43,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:17:43,212 INFO L225 Difference]: With dead ends: 7651 [2025-01-09 05:17:43,212 INFO L226 Difference]: Without dead ends: 5815 [2025-01-09 05:17:43,220 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-01-09 05:17:43,221 INFO L435 NwaCegarLoop]: 4738 mSDtfsCounter, 5114 mSDsluCounter, 14263 mSDsCounter, 0 mSdLazyCounter, 1097 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5134 SdHoareTripleChecker+Valid, 19001 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 05:17:43,221 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5134 Valid, 19001 Invalid, 1131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1097 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-01-09 05:17:43,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5815 states. [2025-01-09 05:17:43,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5815 to 5616. [2025-01-09 05:17:43,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5616 states, 5344 states have (on average 1.7103293413173652) internal successors, (9140), 5367 states have internal predecessors, (9140), 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 05:17:43,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5616 states to 5616 states and 9594 transitions. [2025-01-09 05:17:43,513 INFO L78 Accepts]: Start accepts. Automaton has 5616 states and 9594 transitions. Word has length 177 [2025-01-09 05:17:43,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:17:43,514 INFO L471 AbstractCegarLoop]: Abstraction has 5616 states and 9594 transitions. [2025-01-09 05:17:43,514 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 05:17:43,515 INFO L276 IsEmpty]: Start isEmpty. Operand 5616 states and 9594 transitions. [2025-01-09 05:17:43,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2025-01-09 05:17:43,518 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:17:43,518 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 05:17:43,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-09 05:17:43,519 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:17:43,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:17:43,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1148313888, now seen corresponding path program 1 times [2025-01-09 05:17:43,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:17:43,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329082417] [2025-01-09 05:17:43,520 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:17:43,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:17:43,532 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 177 statements into 1 equivalence classes. [2025-01-09 05:17:43,539 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 177 of 177 statements. [2025-01-09 05:17:43,539 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:17:43,539 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:17:43,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:17:43,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:17:43,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329082417] [2025-01-09 05:17:43,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329082417] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:17:43,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:17:43,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 05:17:43,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987614312] [2025-01-09 05:17:43,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:17:43,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 05:17:43,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:17:43,700 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 05:17:43,700 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 05:17:43,700 INFO L87 Difference]: Start difference. First operand 5616 states and 9594 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 05:17:44,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:17:44,628 INFO L93 Difference]: Finished difference Result 13020 states and 21893 transitions. [2025-01-09 05:17:44,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 05:17:44,629 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 05:17:44,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:17:44,676 INFO L225 Difference]: With dead ends: 13020 [2025-01-09 05:17:44,676 INFO L226 Difference]: Without dead ends: 9545 [2025-01-09 05:17:44,690 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-01-09 05:17:44,691 INFO L435 NwaCegarLoop]: 4731 mSDtfsCounter, 5106 mSDsluCounter, 14244 mSDsCounter, 0 mSdLazyCounter, 1097 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5126 SdHoareTripleChecker+Valid, 18975 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 05:17:44,691 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5126 Valid, 18975 Invalid, 1131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1097 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-01-09 05:17:44,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9545 states. [2025-01-09 05:17:44,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9545 to 9272. [2025-01-09 05:17:44,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9272 states, 8738 states have (on average 1.690775921263447) internal successors, (14774), 8807 states have internal predecessors, (14774), 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 05:17:44,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9272 states to 9272 states and 15756 transitions. [2025-01-09 05:17:45,000 INFO L78 Accepts]: Start accepts. Automaton has 9272 states and 15756 transitions. Word has length 177 [2025-01-09 05:17:45,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:17:45,000 INFO L471 AbstractCegarLoop]: Abstraction has 9272 states and 15756 transitions. [2025-01-09 05:17:45,001 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 05:17:45,001 INFO L276 IsEmpty]: Start isEmpty. Operand 9272 states and 15756 transitions. [2025-01-09 05:17:45,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2025-01-09 05:17:45,007 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:17:45,007 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 05:17:45,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-09 05:17:45,007 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:17:45,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:17:45,008 INFO L85 PathProgramCache]: Analyzing trace with hash -762451486, now seen corresponding path program 1 times [2025-01-09 05:17:45,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:17:45,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405614172] [2025-01-09 05:17:45,008 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:17:45,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:17:45,019 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 177 statements into 1 equivalence classes. [2025-01-09 05:17:45,024 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 177 of 177 statements. [2025-01-09 05:17:45,025 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:17:45,025 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:17:45,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:17:45,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:17:45,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405614172] [2025-01-09 05:17:45,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405614172] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:17:45,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:17:45,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 05:17:45,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972785733] [2025-01-09 05:17:45,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:17:45,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 05:17:45,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:17:45,153 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 05:17:45,153 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 05:17:45,154 INFO L87 Difference]: Start difference. First operand 9272 states and 15756 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 05:17:46,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:17:46,115 INFO L93 Difference]: Finished difference Result 25252 states and 43121 transitions. [2025-01-09 05:17:46,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 05:17:46,115 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 05:17:46,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:17:46,171 INFO L225 Difference]: With dead ends: 25252 [2025-01-09 05:17:46,171 INFO L226 Difference]: Without dead ends: 18121 [2025-01-09 05:17:46,192 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-01-09 05:17:46,193 INFO L435 NwaCegarLoop]: 4728 mSDtfsCounter, 5101 mSDsluCounter, 14235 mSDsCounter, 0 mSdLazyCounter, 1097 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5121 SdHoareTripleChecker+Valid, 18963 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 05:17:46,193 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5121 Valid, 18963 Invalid, 1131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1097 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-01-09 05:17:46,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18121 states. [2025-01-09 05:17:46,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18121 to 17691. [2025-01-09 05:17:46,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17691 states, 16579 states have (on average 1.6940708124736112) internal successors, (28086), 16794 states have internal predecessors, (28086), 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 05:17:46,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17691 states to 17691 states and 30508 transitions. [2025-01-09 05:17:46,634 INFO L78 Accepts]: Start accepts. Automaton has 17691 states and 30508 transitions. Word has length 177 [2025-01-09 05:17:46,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:17:46,635 INFO L471 AbstractCegarLoop]: Abstraction has 17691 states and 30508 transitions. [2025-01-09 05:17:46,636 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 05:17:46,636 INFO L276 IsEmpty]: Start isEmpty. Operand 17691 states and 30508 transitions. [2025-01-09 05:17:46,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2025-01-09 05:17:46,644 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:17:46,644 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 05:17:46,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-09 05:17:46,645 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:17:46,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:17:46,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1027098976, now seen corresponding path program 1 times [2025-01-09 05:17:46,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:17:46,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075333445] [2025-01-09 05:17:46,646 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:17:46,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:17:46,656 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 177 statements into 1 equivalence classes. [2025-01-09 05:17:46,661 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 177 of 177 statements. [2025-01-09 05:17:46,661 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:17:46,661 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:17:46,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:17:46,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:17:46,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075333445] [2025-01-09 05:17:46,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075333445] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:17:46,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:17:46,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 05:17:46,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836544179] [2025-01-09 05:17:46,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:17:46,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 05:17:46,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:17:46,773 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 05:17:46,773 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 05:17:46,773 INFO L87 Difference]: Start difference. First operand 17691 states and 30508 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 05:17:47,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:17:47,342 INFO L93 Difference]: Finished difference Result 38141 states and 67182 transitions. [2025-01-09 05:17:47,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 05:17:47,343 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 05:17:47,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:17:47,529 INFO L225 Difference]: With dead ends: 38141 [2025-01-09 05:17:47,529 INFO L226 Difference]: Without dead ends: 22591 [2025-01-09 05:17:47,554 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-09 05:17:47,557 INFO L435 NwaCegarLoop]: 4400 mSDtfsCounter, 4770 mSDsluCounter, 8641 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4790 SdHoareTripleChecker+Valid, 13041 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 05:17:47,558 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4790 Valid, 13041 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-09 05:17:47,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22591 states. [2025-01-09 05:17:47,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22591 to 17691. [2025-01-09 05:17:47,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17691 states, 16579 states have (on average 1.692080342602087) internal successors, (28053), 16794 states have internal predecessors, (28053), 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 05:17:48,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17691 states to 17691 states and 30475 transitions. [2025-01-09 05:17:48,005 INFO L78 Accepts]: Start accepts. Automaton has 17691 states and 30475 transitions. Word has length 177 [2025-01-09 05:17:48,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:17:48,005 INFO L471 AbstractCegarLoop]: Abstraction has 17691 states and 30475 transitions. [2025-01-09 05:17:48,005 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 05:17:48,005 INFO L276 IsEmpty]: Start isEmpty. Operand 17691 states and 30475 transitions. [2025-01-09 05:17:48,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2025-01-09 05:17:48,013 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:17:48,013 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 05:17:48,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-01-09 05:17:48,014 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:17:48,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:17:48,014 INFO L85 PathProgramCache]: Analyzing trace with hash 904026658, now seen corresponding path program 1 times [2025-01-09 05:17:48,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:17:48,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070325782] [2025-01-09 05:17:48,014 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:17:48,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:17:48,027 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 177 statements into 1 equivalence classes. [2025-01-09 05:17:48,032 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 177 of 177 statements. [2025-01-09 05:17:48,033 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:17:48,033 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:17:48,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:17:48,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:17:48,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070325782] [2025-01-09 05:17:48,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070325782] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:17:48,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:17:48,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 05:17:48,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211586492] [2025-01-09 05:17:48,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:17:48,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 05:17:48,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:17:48,162 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 05:17:48,162 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 05:17:48,163 INFO L87 Difference]: Start difference. First operand 17691 states and 30475 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 05:17:49,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:17:49,330 INFO L93 Difference]: Finished difference Result 53691 states and 94676 transitions. [2025-01-09 05:17:49,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 05:17:49,330 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 05:17:49,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:17:49,464 INFO L225 Difference]: With dead ends: 53691 [2025-01-09 05:17:49,464 INFO L226 Difference]: Without dead ends: 38141 [2025-01-09 05:17:49,510 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-01-09 05:17:49,510 INFO L435 NwaCegarLoop]: 4720 mSDtfsCounter, 5088 mSDsluCounter, 14212 mSDsCounter, 0 mSdLazyCounter, 1097 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5108 SdHoareTripleChecker+Valid, 18932 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 05:17:49,511 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5108 Valid, 18932 Invalid, 1131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1097 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-01-09 05:17:49,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38141 states. [2025-01-09 05:17:50,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38141 to 37445. [2025-01-09 05:17:50,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37445 states, 35015 states have (on average 1.712837355419106) internal successors, (59975), 35684 states have internal predecessors, (59975), 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 05:17:50,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37445 states to 37445 states and 66813 transitions. [2025-01-09 05:17:50,936 INFO L78 Accepts]: Start accepts. Automaton has 37445 states and 66813 transitions. Word has length 177 [2025-01-09 05:17:50,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:17:50,936 INFO L471 AbstractCegarLoop]: Abstraction has 37445 states and 66813 transitions. [2025-01-09 05:17:50,937 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 05:17:50,937 INFO L276 IsEmpty]: Start isEmpty. Operand 37445 states and 66813 transitions. [2025-01-09 05:17:50,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2025-01-09 05:17:50,951 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:17:50,951 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 05:17:50,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-01-09 05:17:50,952 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:17:50,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:17:50,952 INFO L85 PathProgramCache]: Analyzing trace with hash -419152288, now seen corresponding path program 1 times [2025-01-09 05:17:50,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:17:50,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993805495] [2025-01-09 05:17:50,952 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:17:50,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:17:50,963 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 177 statements into 1 equivalence classes. [2025-01-09 05:17:50,968 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 177 of 177 statements. [2025-01-09 05:17:50,969 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:17:50,969 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:17:51,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:17:51,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:17:51,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993805495] [2025-01-09 05:17:51,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993805495] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:17:51,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:17:51,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 05:17:51,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059391718] [2025-01-09 05:17:51,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:17:51,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 05:17:51,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:17:51,106 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 05:17:51,106 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 05:17:51,107 INFO L87 Difference]: Start difference. First operand 37445 states and 66813 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 05:17:53,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:17:53,158 INFO L93 Difference]: Finished difference Result 121999 states and 226436 transitions. [2025-01-09 05:17:53,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 05:17:53,158 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 05:17:53,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:17:53,499 INFO L225 Difference]: With dead ends: 121999 [2025-01-09 05:17:53,500 INFO L226 Difference]: Without dead ends: 86695 [2025-01-09 05:17:53,606 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-01-09 05:17:53,607 INFO L435 NwaCegarLoop]: 4717 mSDtfsCounter, 5083 mSDsluCounter, 14203 mSDsCounter, 0 mSdLazyCounter, 1097 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5103 SdHoareTripleChecker+Valid, 18920 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-09 05:17:53,608 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5103 Valid, 18920 Invalid, 1131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1097 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-09 05:17:53,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86695 states. [2025-01-09 05:17:56,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86695 to 85458. [2025-01-09 05:17:56,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85458 states, 79906 states have (on average 1.7437864490776662) internal successors, (139339), 81969 states have internal predecessors, (139339), 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 05:17:56,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85458 states to 85458 states and 161153 transitions. [2025-01-09 05:17:56,786 INFO L78 Accepts]: Start accepts. Automaton has 85458 states and 161153 transitions. Word has length 177 [2025-01-09 05:17:56,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:17:56,788 INFO L471 AbstractCegarLoop]: Abstraction has 85458 states and 161153 transitions. [2025-01-09 05:17:56,788 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 05:17:56,788 INFO L276 IsEmpty]: Start isEmpty. Operand 85458 states and 161153 transitions. [2025-01-09 05:17:56,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2025-01-09 05:17:56,813 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:17:56,813 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 05:17:56,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-01-09 05:17:56,813 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:17:56,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:17:56,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1477827170, now seen corresponding path program 1 times [2025-01-09 05:17:56,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:17:56,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418164023] [2025-01-09 05:17:56,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:17:56,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:17:56,832 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 177 statements into 1 equivalence classes. [2025-01-09 05:17:56,840 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 177 of 177 statements. [2025-01-09 05:17:56,840 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:17:56,840 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:17:56,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:17:56,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:17:56,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418164023] [2025-01-09 05:17:56,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418164023] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:17:56,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:17:56,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 05:17:56,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926047872] [2025-01-09 05:17:56,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:17:56,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 05:17:56,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:17:56,975 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 05:17:56,975 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 05:17:56,975 INFO L87 Difference]: Start difference. First operand 85458 states and 161153 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 05:18:02,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:18:02,109 INFO L93 Difference]: Finished difference Result 291116 states and 579750 transitions. [2025-01-09 05:18:02,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 05:18:02,110 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 05:18:02,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:18:03,003 INFO L225 Difference]: With dead ends: 291116 [2025-01-09 05:18:03,003 INFO L226 Difference]: Without dead ends: 207799 [2025-01-09 05:18:03,265 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-01-09 05:18:03,266 INFO L435 NwaCegarLoop]: 4448 mSDtfsCounter, 5123 mSDsluCounter, 13563 mSDsCounter, 0 mSdLazyCounter, 897 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5143 SdHoareTripleChecker+Valid, 18011 SdHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-01-09 05:18:03,266 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5143 Valid, 18011 Invalid, 955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 897 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-01-09 05:18:03,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207799 states. [2025-01-09 05:18:10,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207799 to 205541. [2025-01-09 05:18:10,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205541 states, 192287 states have (on average 1.77725483261999) internal successors, (341743), 198596 states have internal predecessors, (341743), 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 05:18:12,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205541 states to 205541 states and 418085 transitions. [2025-01-09 05:18:12,074 INFO L78 Accepts]: Start accepts. Automaton has 205541 states and 418085 transitions. Word has length 177 [2025-01-09 05:18:12,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 05:18:12,074 INFO L471 AbstractCegarLoop]: Abstraction has 205541 states and 418085 transitions. [2025-01-09 05:18:12,074 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 05:18:12,075 INFO L276 IsEmpty]: Start isEmpty. Operand 205541 states and 418085 transitions. [2025-01-09 05:18:12,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2025-01-09 05:18:12,146 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 05:18:12,146 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 05:18:12,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-01-09 05:18:12,147 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 05:18:12,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 05:18:12,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1816114720, now seen corresponding path program 1 times [2025-01-09 05:18:12,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 05:18:12,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449885694] [2025-01-09 05:18:12,147 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 05:18:12,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 05:18:12,159 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 177 statements into 1 equivalence classes. [2025-01-09 05:18:12,166 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 177 of 177 statements. [2025-01-09 05:18:12,167 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 05:18:12,167 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 05:18:12,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 05:18:12,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 05:18:12,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449885694] [2025-01-09 05:18:12,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449885694] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 05:18:12,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 05:18:12,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 05:18:12,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349480604] [2025-01-09 05:18:12,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 05:18:12,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 05:18:12,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 05:18:12,266 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 05:18:12,266 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 05:18:12,266 INFO L87 Difference]: Start difference. First operand 205541 states and 418085 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 05:18:20,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 05:18:20,813 INFO L93 Difference]: Finished difference Result 513949 states and 1088558 transitions. [2025-01-09 05:18:20,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 05:18:20,814 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 05:18:20,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 05:18:22,609 INFO L225 Difference]: With dead ends: 513949 [2025-01-09 05:18:22,609 INFO L226 Difference]: Without dead ends: 310549 [2025-01-09 05:18:23,067 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 05:18:23,067 INFO L435 NwaCegarLoop]: 4391 mSDtfsCounter, 4764 mSDsluCounter, 8624 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4784 SdHoareTripleChecker+Valid, 13015 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-09 05:18:23,067 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4784 Valid, 13015 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-09 05:18:23,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310549 states.