./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/Problem05_label40+token_ring.04.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee4dda2-b33f-47c8-a515-be870778f88f/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee4dda2-b33f-47c8-a515-be870778f88f/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee4dda2-b33f-47c8-a515-be870778f88f/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee4dda2-b33f-47c8-a515-be870778f88f/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label40+token_ring.04.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee4dda2-b33f-47c8-a515-be870778f88f/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee4dda2-b33f-47c8-a515-be870778f88f/bin/uautomizer-verify-LYvppIcaGC --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 f360dda009e25a73435ad605bf6b2f1b0f95e4925e3a6f627d3b33f05412514d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:57:52,667 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:57:52,780 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee4dda2-b33f-47c8-a515-be870778f88f/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 00:57:52,791 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:57:52,793 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:57:52,850 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:57:52,851 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:57:52,852 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:57:52,852 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:57:52,853 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:57:52,853 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:57:52,853 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:57:52,854 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:57:52,854 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:57:52,854 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:57:52,854 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:57:52,854 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:57:52,855 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:57:52,855 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:57:52,855 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:57:52,855 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:57:52,855 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:57:52,855 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:57:52,855 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:57:52,855 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:57:52,855 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:57:52,856 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:57:52,856 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:57:52,856 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:57:52,856 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:57:52,856 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:57:52,856 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:57:52,856 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:57:52,856 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:57:52,857 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:57:52,859 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:57:52,860 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:57:52,860 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:57:52,860 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:57:52,860 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:57:52,860 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:57:52,861 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:57:52,861 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:57:52,861 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:57:52,862 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:57:52,862 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:57:52,862 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:57:52,862 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:57:52,862 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee4dda2-b33f-47c8-a515-be870778f88f/bin/uautomizer-verify-LYvppIcaGC 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 -> f360dda009e25a73435ad605bf6b2f1b0f95e4925e3a6f627d3b33f05412514d [2024-11-24 00:57:53,268 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:57:53,280 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:57:53,283 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:57:53,285 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:57:53,285 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:57:53,286 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee4dda2-b33f-47c8-a515-be870778f88f/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/combinations/Problem05_label40+token_ring.04.cil-1.c [2024-11-24 00:57:57,105 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee4dda2-b33f-47c8-a515-be870778f88f/bin/uautomizer-verify-LYvppIcaGC/data/1d3b4ef52/83c485965c034016ae8a3111001cf496/FLAG64e6325e0 [2024-11-24 00:57:58,040 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:57:58,041 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee4dda2-b33f-47c8-a515-be870778f88f/sv-benchmarks/c/combinations/Problem05_label40+token_ring.04.cil-1.c [2024-11-24 00:57:58,102 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee4dda2-b33f-47c8-a515-be870778f88f/bin/uautomizer-verify-LYvppIcaGC/data/1d3b4ef52/83c485965c034016ae8a3111001cf496/FLAG64e6325e0 [2024-11-24 00:57:58,182 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee4dda2-b33f-47c8-a515-be870778f88f/bin/uautomizer-verify-LYvppIcaGC/data/1d3b4ef52/83c485965c034016ae8a3111001cf496 [2024-11-24 00:57:58,185 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:57:58,187 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:57:58,191 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:57:58,191 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:57:58,197 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:57:58,198 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:57:58" (1/1) ... [2024-11-24 00:57:58,202 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bd381f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:57:58, skipping insertion in model container [2024-11-24 00:57:58,202 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:57:58" (1/1) ... [2024-11-24 00:57:58,509 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:58:01,076 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee4dda2-b33f-47c8-a515-be870778f88f/sv-benchmarks/c/combinations/Problem05_label40+token_ring.04.cil-1.c[377069,377082] [2024-11-24 00:58:01,141 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee4dda2-b33f-47c8-a515-be870778f88f/sv-benchmarks/c/combinations/Problem05_label40+token_ring.04.cil-1.c[383339,383352] [2024-11-24 00:58:01,463 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:58:01,476 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:58:02,665 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee4dda2-b33f-47c8-a515-be870778f88f/sv-benchmarks/c/combinations/Problem05_label40+token_ring.04.cil-1.c[377069,377082] [2024-11-24 00:58:02,677 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee4dda2-b33f-47c8-a515-be870778f88f/sv-benchmarks/c/combinations/Problem05_label40+token_ring.04.cil-1.c[383339,383352] [2024-11-24 00:58:02,707 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:58:02,800 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:58:02,801 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:58:02 WrapperNode [2024-11-24 00:58:02,802 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:58:02,803 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:58:02,804 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:58:02,805 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:58:02,815 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:58:02" (1/1) ... [2024-11-24 00:58:02,933 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:58:02" (1/1) ... [2024-11-24 00:58:03,576 INFO L138 Inliner]: procedures = 52, calls = 53, calls flagged for inlining = 30, calls inlined = 30, statements flattened = 12745 [2024-11-24 00:58:03,577 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:58:03,578 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:58:03,579 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:58:03,579 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:58:03,592 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:58:02" (1/1) ... [2024-11-24 00:58:03,592 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:58:02" (1/1) ... [2024-11-24 00:58:03,664 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:58:02" (1/1) ... [2024-11-24 00:58:03,863 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-24 00:58:03,863 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:58:02" (1/1) ... [2024-11-24 00:58:03,863 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:58:02" (1/1) ... [2024-11-24 00:58:04,189 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:58:02" (1/1) ... [2024-11-24 00:58:04,208 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:58:02" (1/1) ... [2024-11-24 00:58:04,321 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:58:02" (1/1) ... [2024-11-24 00:58:04,355 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:58:02" (1/1) ... [2024-11-24 00:58:04,385 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:58:02" (1/1) ... [2024-11-24 00:58:04,459 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:58:04,462 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:58:04,462 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:58:04,462 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:58:04,464 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:58:02" (1/1) ... [2024-11-24 00:58:04,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:58:04,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee4dda2-b33f-47c8-a515-be870778f88f/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:58:04,515 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee4dda2-b33f-47c8-a515-be870778f88f/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:58:04,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ee4dda2-b33f-47c8-a515-be870778f88f/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:58:04,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:58:04,565 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-24 00:58:04,565 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-24 00:58:04,565 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-24 00:58:04,565 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-24 00:58:04,565 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-24 00:58:04,565 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-24 00:58:04,565 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-24 00:58:04,566 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-24 00:58:04,566 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-24 00:58:04,566 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-24 00:58:04,566 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-24 00:58:04,566 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-24 00:58:04,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:58:04,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:58:04,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:58:04,755 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:58:04,759 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:58:19,402 INFO L? ?]: Removed 1707 outVars from TransFormulas that were not future-live. [2024-11-24 00:58:19,403 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:58:19,574 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:58:19,574 INFO L312 CfgBuilder]: Removed 16 assume(true) statements. [2024-11-24 00:58:19,574 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:58:19 BoogieIcfgContainer [2024-11-24 00:58:19,575 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:58:19,590 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:58:19,590 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:58:19,604 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:58:19,606 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:57:58" (1/3) ... [2024-11-24 00:58:19,609 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eed8b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:58:19, skipping insertion in model container [2024-11-24 00:58:19,609 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:58:02" (2/3) ... [2024-11-24 00:58:19,610 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eed8b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:58:19, skipping insertion in model container [2024-11-24 00:58:19,610 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:58:19" (3/3) ... [2024-11-24 00:58:19,612 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem05_label40+token_ring.04.cil-1.c [2024-11-24 00:58:19,635 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:58:19,639 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem05_label40+token_ring.04.cil-1.c that has 7 procedures, 2363 locations, 1 initial locations, 8 loop locations, and 2 error locations. [2024-11-24 00:58:19,828 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:58:19,851 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;@412398de, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:58:19,851 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-24 00:58:19,873 INFO L276 IsEmpty]: Start isEmpty. Operand has 2363 states, 2337 states have (on average 1.8540864356011981) internal successors, (4333), 2339 states have internal predecessors, (4333), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-24 00:58:19,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-24 00:58:19,898 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:58:19,899 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] [2024-11-24 00:58:19,900 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:58:19,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:58:19,909 INFO L85 PathProgramCache]: Analyzing trace with hash -998948813, now seen corresponding path program 1 times [2024-11-24 00:58:19,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:58:19,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128188985] [2024-11-24 00:58:19,919 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:58:19,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:58:20,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:58:20,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:58:20,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:58:20,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128188985] [2024-11-24 00:58:20,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128188985] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:58:20,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:58:20,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:58:20,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861521697] [2024-11-24 00:58:20,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:58:20,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:58:20,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:58:20,445 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:58:20,445 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:58:20,456 INFO L87 Difference]: Start difference. First operand has 2363 states, 2337 states have (on average 1.8540864356011981) internal successors, (4333), 2339 states have internal predecessors, (4333), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 00:58:20,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:58:20,928 INFO L93 Difference]: Finished difference Result 4720 states and 8727 transitions. [2024-11-24 00:58:20,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:58:20,932 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 88 [2024-11-24 00:58:20,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:58:20,980 INFO L225 Difference]: With dead ends: 4720 [2024-11-24 00:58:20,981 INFO L226 Difference]: Without dead ends: 2296 [2024-11-24 00:58:20,997 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 [2024-11-24 00:58:21,003 INFO L435 NwaCegarLoop]: 4290 mSDtfsCounter, 263 mSDsluCounter, 4022 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 8312 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:58:21,008 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 8312 Invalid, 2 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:58:21,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2296 states. [2024-11-24 00:58:21,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2296 to 2296. [2024-11-24 00:58:21,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2296 states, 2270 states have (on average 1.8440528634361233) internal successors, (4186), 2272 states have internal predecessors, (4186), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-24 00:58:21,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2296 states to 2296 states and 4222 transitions. [2024-11-24 00:58:21,248 INFO L78 Accepts]: Start accepts. Automaton has 2296 states and 4222 transitions. Word has length 88 [2024-11-24 00:58:21,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:58:21,250 INFO L471 AbstractCegarLoop]: Abstraction has 2296 states and 4222 transitions. [2024-11-24 00:58:21,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 00:58:21,253 INFO L276 IsEmpty]: Start isEmpty. Operand 2296 states and 4222 transitions. [2024-11-24 00:58:21,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-24 00:58:21,260 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:58:21,261 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] [2024-11-24 00:58:21,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 00:58:21,261 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:58:21,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:58:21,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1239188559, now seen corresponding path program 1 times [2024-11-24 00:58:21,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:58:21,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055870640] [2024-11-24 00:58:21,266 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:58:21,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:58:21,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:58:21,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:58:21,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:58:21,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055870640] [2024-11-24 00:58:21,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055870640] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:58:21,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:58:21,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:58:21,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570226734] [2024-11-24 00:58:21,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:58:21,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:58:21,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:58:21,744 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:58:21,744 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:58:21,744 INFO L87 Difference]: Start difference. First operand 2296 states and 4222 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 00:58:22,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:58:22,527 INFO L93 Difference]: Finished difference Result 2638 states and 4748 transitions. [2024-11-24 00:58:22,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:58:22,528 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 88 [2024-11-24 00:58:22,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:58:22,548 INFO L225 Difference]: With dead ends: 2638 [2024-11-24 00:58:22,548 INFO L226 Difference]: Without dead ends: 2475 [2024-11-24 00:58:22,551 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 [2024-11-24 00:58:22,554 INFO L435 NwaCegarLoop]: 4180 mSDtfsCounter, 4426 mSDsluCounter, 8454 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4438 SdHoareTripleChecker+Valid, 12634 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:58:22,555 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4438 Valid, 12634 Invalid, 344 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [40 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:58:22,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2475 states. [2024-11-24 00:58:22,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2475 to 2462. [2024-11-24 00:58:22,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2462 states, 2416 states have (on average 1.826158940397351) internal successors, (4412), 2419 states have internal predecessors, (4412), 31 states have call successors, (31), 12 states have call predecessors, (31), 13 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) [2024-11-24 00:58:22,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2462 states to 2462 states and 4475 transitions. [2024-11-24 00:58:22,669 INFO L78 Accepts]: Start accepts. Automaton has 2462 states and 4475 transitions. Word has length 88 [2024-11-24 00:58:22,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:58:22,670 INFO L471 AbstractCegarLoop]: Abstraction has 2462 states and 4475 transitions. [2024-11-24 00:58:22,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 00:58:22,672 INFO L276 IsEmpty]: Start isEmpty. Operand 2462 states and 4475 transitions. [2024-11-24 00:58:22,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-24 00:58:22,678 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:58:22,678 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] [2024-11-24 00:58:22,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:58:22,679 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:58:22,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:58:22,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1227003083, now seen corresponding path program 1 times [2024-11-24 00:58:22,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:58:22,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375177876] [2024-11-24 00:58:22,680 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:58:22,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:58:22,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:58:23,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:58:23,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:58:23,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375177876] [2024-11-24 00:58:23,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375177876] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:58:23,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:58:23,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:58:23,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144256301] [2024-11-24 00:58:23,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:58:23,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:58:23,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:58:23,029 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:58:23,029 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:58:23,030 INFO L87 Difference]: Start difference. First operand 2462 states and 4475 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 00:58:24,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:58:24,002 INFO L93 Difference]: Finished difference Result 2999 states and 5303 transitions. [2024-11-24 00:58:24,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:58:24,003 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 88 [2024-11-24 00:58:24,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:58:24,019 INFO L225 Difference]: With dead ends: 2999 [2024-11-24 00:58:24,019 INFO L226 Difference]: Without dead ends: 2670 [2024-11-24 00:58:24,021 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:58:24,024 INFO L435 NwaCegarLoop]: 4292 mSDtfsCounter, 4420 mSDsluCounter, 12858 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4432 SdHoareTripleChecker+Valid, 17150 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:58:24,026 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4432 Valid, 17150 Invalid, 578 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [24 Valid, 554 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 00:58:24,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2670 states. [2024-11-24 00:58:24,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2670 to 2617. [2024-11-24 00:58:24,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2617 states, 2551 states have (on average 1.8094864758918072) internal successors, (4616), 2555 states have internal predecessors, (4616), 44 states have call successors, (44), 18 states have call predecessors, (44), 20 states have return successors, (48), 45 states have call predecessors, (48), 44 states have call successors, (48) [2024-11-24 00:58:24,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2617 states to 2617 states and 4708 transitions. [2024-11-24 00:58:24,149 INFO L78 Accepts]: Start accepts. Automaton has 2617 states and 4708 transitions. Word has length 88 [2024-11-24 00:58:24,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:58:24,151 INFO L471 AbstractCegarLoop]: Abstraction has 2617 states and 4708 transitions. [2024-11-24 00:58:24,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 00:58:24,152 INFO L276 IsEmpty]: Start isEmpty. Operand 2617 states and 4708 transitions. [2024-11-24 00:58:24,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-24 00:58:24,156 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:58:24,157 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] [2024-11-24 00:58:24,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 00:58:24,157 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:58:24,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:58:24,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1150102285, now seen corresponding path program 1 times [2024-11-24 00:58:24,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:58:24,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243210394] [2024-11-24 00:58:24,158 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:58:24,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:58:24,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:58:24,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:58:24,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:58:24,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243210394] [2024-11-24 00:58:24,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243210394] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:58:24,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:58:24,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:58:24,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897161317] [2024-11-24 00:58:24,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:58:24,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:58:24,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:58:24,424 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:58:24,424 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:58:24,424 INFO L87 Difference]: Start difference. First operand 2617 states and 4708 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 00:58:25,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:58:25,244 INFO L93 Difference]: Finished difference Result 3486 states and 6045 transitions. [2024-11-24 00:58:25,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:58:25,245 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 88 [2024-11-24 00:58:25,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:58:25,263 INFO L225 Difference]: With dead ends: 3486 [2024-11-24 00:58:25,263 INFO L226 Difference]: Without dead ends: 3002 [2024-11-24 00:58:25,266 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:58:25,267 INFO L435 NwaCegarLoop]: 4171 mSDtfsCounter, 4431 mSDsluCounter, 12580 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4443 SdHoareTripleChecker+Valid, 16751 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:58:25,268 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4443 Valid, 16751 Invalid, 487 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [38 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 00:58:25,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3002 states. [2024-11-24 00:58:25,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3002 to 2944. [2024-11-24 00:58:25,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2944 states, 2836 states have (on average 1.7810296191819464) internal successors, (5051), 2844 states have internal predecessors, (5051), 70 states have call successors, (70), 30 states have call predecessors, (70), 36 states have return successors, (86), 73 states have call predecessors, (86), 70 states have call successors, (86) [2024-11-24 00:58:25,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2944 states to 2944 states and 5207 transitions. [2024-11-24 00:58:25,411 INFO L78 Accepts]: Start accepts. Automaton has 2944 states and 5207 transitions. Word has length 88 [2024-11-24 00:58:25,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:58:25,412 INFO L471 AbstractCegarLoop]: Abstraction has 2944 states and 5207 transitions. [2024-11-24 00:58:25,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 00:58:25,412 INFO L276 IsEmpty]: Start isEmpty. Operand 2944 states and 5207 transitions. [2024-11-24 00:58:25,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-24 00:58:25,418 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:58:25,418 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] [2024-11-24 00:58:25,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 00:58:25,418 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:58:25,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:58:25,419 INFO L85 PathProgramCache]: Analyzing trace with hash -2117452939, now seen corresponding path program 1 times [2024-11-24 00:58:25,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:58:25,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948564116] [2024-11-24 00:58:25,419 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:58:25,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:58:25,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:58:25,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:58:25,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:58:25,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948564116] [2024-11-24 00:58:25,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948564116] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:58:25,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:58:25,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:58:25,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996245465] [2024-11-24 00:58:25,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:58:25,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:58:25,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:58:25,625 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:58:25,625 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:58:25,625 INFO L87 Difference]: Start difference. First operand 2944 states and 5207 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 00:58:26,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:58:26,681 INFO L93 Difference]: Finished difference Result 4523 states and 7658 transitions. [2024-11-24 00:58:26,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:58:26,682 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 88 [2024-11-24 00:58:26,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:58:26,709 INFO L225 Difference]: With dead ends: 4523 [2024-11-24 00:58:26,709 INFO L226 Difference]: Without dead ends: 3712 [2024-11-24 00:58:26,713 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:58:26,715 INFO L435 NwaCegarLoop]: 4285 mSDtfsCounter, 4410 mSDsluCounter, 12837 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4422 SdHoareTripleChecker+Valid, 17122 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:58:26,716 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4422 Valid, 17122 Invalid, 578 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [24 Valid, 554 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 00:58:26,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3712 states. [2024-11-24 00:58:26,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3712 to 3643. [2024-11-24 00:58:26,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3643 states, 3445 states have (on average 1.7390420899854862) internal successors, (5991), 3467 states have internal predecessors, (5991), 122 states have call successors, (122), 54 states have call predecessors, (122), 74 states have return successors, (186), 129 states have call predecessors, (186), 122 states have call successors, (186) [2024-11-24 00:58:26,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3643 states to 3643 states and 6299 transitions. [2024-11-24 00:58:26,927 INFO L78 Accepts]: Start accepts. Automaton has 3643 states and 6299 transitions. Word has length 88 [2024-11-24 00:58:26,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:58:26,928 INFO L471 AbstractCegarLoop]: Abstraction has 3643 states and 6299 transitions. [2024-11-24 00:58:26,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 00:58:26,928 INFO L276 IsEmpty]: Start isEmpty. Operand 3643 states and 6299 transitions. [2024-11-24 00:58:26,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-24 00:58:26,933 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:58:26,934 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] [2024-11-24 00:58:26,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 00:58:26,934 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:58:26,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:58:26,935 INFO L85 PathProgramCache]: Analyzing trace with hash -208995149, now seen corresponding path program 1 times [2024-11-24 00:58:26,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:58:26,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658095108] [2024-11-24 00:58:26,937 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:58:26,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:58:26,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:58:27,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:58:27,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:58:27,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658095108] [2024-11-24 00:58:27,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658095108] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:58:27,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:58:27,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:58:27,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346758123] [2024-11-24 00:58:27,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:58:27,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:58:27,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:58:27,164 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:58:27,164 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:58:27,164 INFO L87 Difference]: Start difference. First operand 3643 states and 6299 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 00:58:28,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:58:28,246 INFO L93 Difference]: Finished difference Result 6984 states and 11565 transitions. [2024-11-24 00:58:28,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:58:28,247 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 88 [2024-11-24 00:58:28,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:58:28,283 INFO L225 Difference]: With dead ends: 6984 [2024-11-24 00:58:28,283 INFO L226 Difference]: Without dead ends: 5474 [2024-11-24 00:58:28,291 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:58:28,293 INFO L435 NwaCegarLoop]: 4276 mSDtfsCounter, 4536 mSDsluCounter, 12807 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4553 SdHoareTripleChecker+Valid, 17083 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:58:28,293 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4553 Valid, 17083 Invalid, 584 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [27 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 00:58:28,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5474 states. [2024-11-24 00:58:28,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5474 to 5107. [2024-11-24 00:58:28,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5107 states, 4719 states have (on average 1.6904005085823268) internal successors, (7977), 4787 states have internal predecessors, (7977), 218 states have call successors, (218), 102 states have call predecessors, (218), 168 states have return successors, (474), 233 states have call predecessors, (474), 218 states have call successors, (474) [2024-11-24 00:58:28,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5107 states to 5107 states and 8669 transitions. [2024-11-24 00:58:28,633 INFO L78 Accepts]: Start accepts. Automaton has 5107 states and 8669 transitions. Word has length 88 [2024-11-24 00:58:28,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:58:28,634 INFO L471 AbstractCegarLoop]: Abstraction has 5107 states and 8669 transitions. [2024-11-24 00:58:28,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 00:58:28,634 INFO L276 IsEmpty]: Start isEmpty. Operand 5107 states and 8669 transitions. [2024-11-24 00:58:28,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-24 00:58:28,639 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:58:28,639 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] [2024-11-24 00:58:28,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 00:58:28,640 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:58:28,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:58:28,640 INFO L85 PathProgramCache]: Analyzing trace with hash 744945009, now seen corresponding path program 1 times [2024-11-24 00:58:28,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:58:28,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949700028] [2024-11-24 00:58:28,641 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:58:28,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:58:28,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:58:29,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:58:29,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:58:29,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949700028] [2024-11-24 00:58:29,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949700028] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:58:29,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:58:29,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:58:29,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755634201] [2024-11-24 00:58:29,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:58:29,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:58:29,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:58:29,050 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:58:29,050 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:58:29,050 INFO L87 Difference]: Start difference. First operand 5107 states and 8669 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 00:58:30,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:58:30,411 INFO L93 Difference]: Finished difference Result 11784 states and 19641 transitions. [2024-11-24 00:58:30,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:58:30,412 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 88 [2024-11-24 00:58:30,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:58:30,511 INFO L225 Difference]: With dead ends: 11784 [2024-11-24 00:58:30,511 INFO L226 Difference]: Without dead ends: 8810 [2024-11-24 00:58:30,527 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:58:30,528 INFO L435 NwaCegarLoop]: 4272 mSDtfsCounter, 4429 mSDsluCounter, 12795 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4440 SdHoareTripleChecker+Valid, 17067 SdHoareTripleChecker+Invalid, 681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:58:30,529 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4440 Valid, 17067 Invalid, 681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 655 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-24 00:58:30,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8810 states. [2024-11-24 00:58:31,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8810 to 8190. [2024-11-24 00:58:31,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8190 states, 7376 states have (on average 1.6454718004338396) internal successors, (12137), 7590 states have internal predecessors, (12137), 402 states have call successors, (402), 198 states have call predecessors, (402), 410 states have return successors, (1426), 433 states have call predecessors, (1426), 402 states have call successors, (1426) [2024-11-24 00:58:31,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8190 states to 8190 states and 13965 transitions. [2024-11-24 00:58:31,187 INFO L78 Accepts]: Start accepts. Automaton has 8190 states and 13965 transitions. Word has length 88 [2024-11-24 00:58:31,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:58:31,188 INFO L471 AbstractCegarLoop]: Abstraction has 8190 states and 13965 transitions. [2024-11-24 00:58:31,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 00:58:31,188 INFO L276 IsEmpty]: Start isEmpty. Operand 8190 states and 13965 transitions. [2024-11-24 00:58:31,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-24 00:58:31,195 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:58:31,196 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] [2024-11-24 00:58:31,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 00:58:31,196 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:58:31,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:58:31,197 INFO L85 PathProgramCache]: Analyzing trace with hash -471208717, now seen corresponding path program 1 times [2024-11-24 00:58:31,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:58:31,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904358794] [2024-11-24 00:58:31,197 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:58:31,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:58:31,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:58:31,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:58:31,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:58:31,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904358794] [2024-11-24 00:58:31,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904358794] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:58:31,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:58:31,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:58:31,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493584831] [2024-11-24 00:58:31,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:58:31,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:58:31,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:58:31,394 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:58:31,395 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:58:31,395 INFO L87 Difference]: Start difference. First operand 8190 states and 13965 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 00:58:33,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:58:33,490 INFO L93 Difference]: Finished difference Result 21853 states and 38083 transitions. [2024-11-24 00:58:33,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:58:33,495 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 88 [2024-11-24 00:58:33,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:58:33,614 INFO L225 Difference]: With dead ends: 21853 [2024-11-24 00:58:33,615 INFO L226 Difference]: Without dead ends: 15796 [2024-11-24 00:58:33,645 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:58:33,646 INFO L435 NwaCegarLoop]: 4270 mSDtfsCounter, 4466 mSDsluCounter, 12789 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4483 SdHoareTripleChecker+Valid, 17059 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:58:33,646 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4483 Valid, 17059 Invalid, 584 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [27 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 00:58:33,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15796 states. [2024-11-24 00:58:35,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15796 to 14939. [2024-11-24 00:58:35,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14939 states, 13127 states have (on average 1.612630456311419) internal successors, (21169), 13795 states have internal predecessors, (21169), 754 states have call successors, (754), 390 states have call predecessors, (754), 1056 states have return successors, (4850), 817 states have call predecessors, (4850), 754 states have call successors, (4850) [2024-11-24 00:58:35,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14939 states to 14939 states and 26773 transitions. [2024-11-24 00:58:35,172 INFO L78 Accepts]: Start accepts. Automaton has 14939 states and 26773 transitions. Word has length 88 [2024-11-24 00:58:35,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:58:35,173 INFO L471 AbstractCegarLoop]: Abstraction has 14939 states and 26773 transitions. [2024-11-24 00:58:35,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 00:58:35,174 INFO L276 IsEmpty]: Start isEmpty. Operand 14939 states and 26773 transitions. [2024-11-24 00:58:35,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-24 00:58:35,192 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:58:35,192 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] [2024-11-24 00:58:35,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 00:58:35,193 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:58:35,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:58:35,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1203176143, now seen corresponding path program 1 times [2024-11-24 00:58:35,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:58:35,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698115357] [2024-11-24 00:58:35,194 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:58:35,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:58:35,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:58:35,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:58:35,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:58:35,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698115357] [2024-11-24 00:58:35,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698115357] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:58:35,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:58:35,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:58:35,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135242881] [2024-11-24 00:58:35,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:58:35,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:58:35,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:58:35,385 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:58:35,385 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:58:35,386 INFO L87 Difference]: Start difference. First operand 14939 states and 26773 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 00:58:38,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:58:38,320 INFO L93 Difference]: Finished difference Result 43536 states and 83937 transitions. [2024-11-24 00:58:38,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:58:38,321 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 88 [2024-11-24 00:58:38,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:58:38,555 INFO L225 Difference]: With dead ends: 43536 [2024-11-24 00:58:38,555 INFO L226 Difference]: Without dead ends: 30730 [2024-11-24 00:58:38,620 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:58:38,622 INFO L435 NwaCegarLoop]: 4267 mSDtfsCounter, 4431 mSDsluCounter, 12780 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4448 SdHoareTripleChecker+Valid, 17047 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:58:38,623 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4448 Valid, 17047 Invalid, 584 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [27 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 00:58:38,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30730 states. [2024-11-24 00:58:42,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30730 to 29556. [2024-11-24 00:58:42,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29556 states, 25294 states have (on average 1.5857120265675655) internal successors, (40109), 27356 states have internal predecessors, (40109), 1426 states have call successors, (1426), 774 states have call predecessors, (1426), 2834 states have return successors, (17810), 1553 states have call predecessors, (17810), 1426 states have call successors, (17810) [2024-11-24 00:58:42,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29556 states to 29556 states and 59345 transitions. [2024-11-24 00:58:42,771 INFO L78 Accepts]: Start accepts. Automaton has 29556 states and 59345 transitions. Word has length 88 [2024-11-24 00:58:42,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:58:42,771 INFO L471 AbstractCegarLoop]: Abstraction has 29556 states and 59345 transitions. [2024-11-24 00:58:42,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 00:58:42,772 INFO L276 IsEmpty]: Start isEmpty. Operand 29556 states and 59345 transitions. [2024-11-24 00:58:42,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-24 00:58:42,794 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:58:42,794 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] [2024-11-24 00:58:42,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 00:58:42,794 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:58:42,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:58:42,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1405611315, now seen corresponding path program 1 times [2024-11-24 00:58:42,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:58:42,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640532273] [2024-11-24 00:58:42,797 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:58:42,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:58:42,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:58:42,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:58:42,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:58:42,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640532273] [2024-11-24 00:58:42,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640532273] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:58:42,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:58:42,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:58:42,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007413473] [2024-11-24 00:58:42,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:58:42,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:58:42,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:58:42,981 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:58:42,981 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:58:42,982 INFO L87 Difference]: Start difference. First operand 29556 states and 59345 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 00:58:48,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:58:48,217 INFO L93 Difference]: Finished difference Result 89467 states and 206023 transitions. [2024-11-24 00:58:48,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:58:48,218 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 88 [2024-11-24 00:58:48,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:58:48,773 INFO L225 Difference]: With dead ends: 89467 [2024-11-24 00:58:48,773 INFO L226 Difference]: Without dead ends: 62044 [2024-11-24 00:58:48,905 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:58:48,907 INFO L435 NwaCegarLoop]: 4262 mSDtfsCounter, 4385 mSDsluCounter, 12773 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4396 SdHoareTripleChecker+Valid, 17035 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:58:48,911 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4396 Valid, 17035 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 588 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-24 00:58:48,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62044 states. [2024-11-24 00:58:56,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62044 to 60761. [2024-11-24 00:58:56,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60761 states, 50221 states have (on average 1.5489337129885905) internal successors, (77789), 56529 states have internal predecessors, (77789), 2698 states have call successors, (2698), 1534 states have call predecessors, (2698), 7840 states have return successors, (68234), 2953 states have call predecessors, (68234), 2698 states have call successors, (68234) [2024-11-24 00:58:57,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60761 states to 60761 states and 148721 transitions. [2024-11-24 00:58:57,380 INFO L78 Accepts]: Start accepts. Automaton has 60761 states and 148721 transitions. Word has length 88 [2024-11-24 00:58:57,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:58:57,382 INFO L471 AbstractCegarLoop]: Abstraction has 60761 states and 148721 transitions. [2024-11-24 00:58:57,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 00:58:57,382 INFO L276 IsEmpty]: Start isEmpty. Operand 60761 states and 148721 transitions. [2024-11-24 00:58:57,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-24 00:58:57,424 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:58:57,424 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] [2024-11-24 00:58:57,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 00:58:57,424 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:58:57,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:58:57,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1351218417, now seen corresponding path program 1 times [2024-11-24 00:58:57,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:58:57,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235552855] [2024-11-24 00:58:57,426 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:58:57,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:58:57,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:58:57,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:58:57,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:58:57,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235552855] [2024-11-24 00:58:57,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235552855] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:58:57,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:58:57,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:58:57,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519721015] [2024-11-24 00:58:57,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:58:57,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:58:57,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:58:57,525 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:58:57,525 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:58:57,525 INFO L87 Difference]: Start difference. First operand 60761 states and 148721 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)