./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/Problem05_label49+token_ring.07.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cfc2d25-ce41-46d7-accf-6d316fe1e992/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cfc2d25-ce41-46d7-accf-6d316fe1e992/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cfc2d25-ce41-46d7-accf-6d316fe1e992/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cfc2d25-ce41-46d7-accf-6d316fe1e992/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label49+token_ring.07.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cfc2d25-ce41-46d7-accf-6d316fe1e992/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cfc2d25-ce41-46d7-accf-6d316fe1e992/bin/uautomizer-verify-aQ6SnzHsRB --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 a0d6ced7e0ff387d58cf8725410ee88dbee5b176eb503e82e37c165076b7e65d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:22:09,638 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:22:09,755 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cfc2d25-ce41-46d7-accf-6d316fe1e992/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 03:22:09,769 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:22:09,772 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:22:09,817 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:22:09,819 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:22:09,820 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:22:09,820 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:22:09,821 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:22:09,822 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:22:09,822 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:22:09,823 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:22:09,823 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:22:09,824 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:22:09,824 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:22:09,825 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:22:09,825 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:22:09,825 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:22:09,825 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:22:09,825 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:22:09,826 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:22:09,826 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:22:09,826 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:22:09,826 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:22:09,827 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:22:09,827 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:22:09,827 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:22:09,827 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:22:09,827 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:22:09,827 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:22:09,828 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:22:09,828 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:22:09,829 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:22:09,829 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:22:09,829 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:22:09,829 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:22:09,830 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:22:09,830 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:22:09,830 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:22:09,830 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:22:09,830 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:22:09,831 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:22:09,831 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:22:09,831 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:22:09,831 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:22:09,831 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:22:09,831 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:22:09,831 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_6cfc2d25-ce41-46d7-accf-6d316fe1e992/bin/uautomizer-verify-aQ6SnzHsRB 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 -> a0d6ced7e0ff387d58cf8725410ee88dbee5b176eb503e82e37c165076b7e65d [2024-11-28 03:22:10,234 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:22:10,245 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:22:10,248 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:22:10,250 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:22:10,250 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:22:10,252 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cfc2d25-ce41-46d7-accf-6d316fe1e992/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/combinations/Problem05_label49+token_ring.07.cil-2.c [2024-11-28 03:22:13,849 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cfc2d25-ce41-46d7-accf-6d316fe1e992/bin/uautomizer-verify-aQ6SnzHsRB/data/8ef498a92/a6f65204384e41e8b8d513f3f65818a8/FLAG5053c07d0 [2024-11-28 03:22:15,023 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:22:15,024 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cfc2d25-ce41-46d7-accf-6d316fe1e992/sv-benchmarks/c/combinations/Problem05_label49+token_ring.07.cil-2.c [2024-11-28 03:22:15,113 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cfc2d25-ce41-46d7-accf-6d316fe1e992/bin/uautomizer-verify-aQ6SnzHsRB/data/8ef498a92/a6f65204384e41e8b8d513f3f65818a8/FLAG5053c07d0 [2024-11-28 03:22:15,140 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cfc2d25-ce41-46d7-accf-6d316fe1e992/bin/uautomizer-verify-aQ6SnzHsRB/data/8ef498a92/a6f65204384e41e8b8d513f3f65818a8 [2024-11-28 03:22:15,143 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:22:15,146 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:22:15,149 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:22:15,149 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:22:15,156 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:22:15,157 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:22:15" (1/1) ... [2024-11-28 03:22:15,160 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8cf08f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:22:15, skipping insertion in model container [2024-11-28 03:22:15,160 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:22:15" (1/1) ... [2024-11-28 03:22:15,439 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:22:17,838 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_6cfc2d25-ce41-46d7-accf-6d316fe1e992/sv-benchmarks/c/combinations/Problem05_label49+token_ring.07.cil-2.c[380593,380606] [2024-11-28 03:22:17,903 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_6cfc2d25-ce41-46d7-accf-6d316fe1e992/sv-benchmarks/c/combinations/Problem05_label49+token_ring.07.cil-2.c[383339,383352] [2024-11-28 03:22:18,223 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:22:18,236 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:22:19,658 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_6cfc2d25-ce41-46d7-accf-6d316fe1e992/sv-benchmarks/c/combinations/Problem05_label49+token_ring.07.cil-2.c[380593,380606] [2024-11-28 03:22:19,665 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_6cfc2d25-ce41-46d7-accf-6d316fe1e992/sv-benchmarks/c/combinations/Problem05_label49+token_ring.07.cil-2.c[383339,383352] [2024-11-28 03:22:19,697 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:22:19,793 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:22:19,795 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:22:19 WrapperNode [2024-11-28 03:22:19,795 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:22:19,796 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:22:19,797 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:22:19,797 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:22:19,808 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:22:19" (1/1) ... [2024-11-28 03:22:19,910 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:22:19" (1/1) ... [2024-11-28 03:22:20,388 INFO L138 Inliner]: procedures = 58, calls = 63, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 12928 [2024-11-28 03:22:20,388 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:22:20,390 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:22:20,390 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:22:20,390 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:22:20,401 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:22:19" (1/1) ... [2024-11-28 03:22:20,402 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:22:19" (1/1) ... [2024-11-28 03:22:20,540 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:22:19" (1/1) ... [2024-11-28 03:22:20,675 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]. [2024-11-28 03:22:20,676 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:22:19" (1/1) ... [2024-11-28 03:22:20,676 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:22:19" (1/1) ... [2024-11-28 03:22:20,924 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:22:19" (1/1) ... [2024-11-28 03:22:20,952 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:22:19" (1/1) ... [2024-11-28 03:22:21,057 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:22:19" (1/1) ... [2024-11-28 03:22:21,092 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:22:19" (1/1) ... [2024-11-28 03:22:21,124 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:22:19" (1/1) ... [2024-11-28 03:22:21,199 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:22:21,201 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:22:21,202 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:22:21,203 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:22:21,204 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:22:19" (1/1) ... [2024-11-28 03:22:21,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:22:21,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cfc2d25-ce41-46d7-accf-6d316fe1e992/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:22:21,251 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cfc2d25-ce41-46d7-accf-6d316fe1e992/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:22:21,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cfc2d25-ce41-46d7-accf-6d316fe1e992/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:22:21,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:22:21,295 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-28 03:22:21,295 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-28 03:22:21,296 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-28 03:22:21,296 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-28 03:22:21,296 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-28 03:22:21,296 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-28 03:22:21,296 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-11-28 03:22:21,297 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-11-28 03:22:21,297 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-28 03:22:21,297 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-28 03:22:21,298 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-28 03:22:21,298 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-28 03:22:21,298 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-28 03:22:21,298 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-28 03:22:21,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:22:21,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:22:21,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:22:21,517 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:22:21,520 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:22:35,688 INFO L? ?]: Removed 1729 outVars from TransFormulas that were not future-live. [2024-11-28 03:22:35,689 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:22:35,788 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:22:35,788 INFO L312 CfgBuilder]: Removed 22 assume(true) statements. [2024-11-28 03:22:35,788 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:22:35 BoogieIcfgContainer [2024-11-28 03:22:35,789 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:22:35,795 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:22:35,796 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:22:35,803 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:22:35,804 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:22:15" (1/3) ... [2024-11-28 03:22:35,805 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@128353cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:22:35, skipping insertion in model container [2024-11-28 03:22:35,805 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:22:19" (2/3) ... [2024-11-28 03:22:35,805 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@128353cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:22:35, skipping insertion in model container [2024-11-28 03:22:35,806 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:22:35" (3/3) ... [2024-11-28 03:22:35,807 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem05_label49+token_ring.07.cil-2.c [2024-11-28 03:22:35,828 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:22:35,832 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem05_label49+token_ring.07.cil-2.c that has 8 procedures, 2446 locations, 1 initial locations, 11 loop locations, and 2 error locations. [2024-11-28 03:22:36,043 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:22:36,065 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;@6af707b7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:22:36,066 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-28 03:22:36,085 INFO L276 IsEmpty]: Start isEmpty. Operand has 2446 states, 2414 states have (on average 1.8500414250207124) internal successors, (4466), 2418 states have internal predecessors, (4466), 23 states have call successors, (23), 7 states have call predecessors, (23), 7 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-28 03:22:36,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-28 03:22:36,111 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:22:36,112 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:22:36,113 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:22:36,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:22:36,121 INFO L85 PathProgramCache]: Analyzing trace with hash -322529058, now seen corresponding path program 1 times [2024-11-28 03:22:36,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:22:36,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518279883] [2024-11-28 03:22:36,133 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:22:36,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:22:36,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:22:36,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:22:36,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:22:36,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518279883] [2024-11-28 03:22:36,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518279883] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:22:36,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:22:36,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:22:36,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617054805] [2024-11-28 03:22:36,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:22:36,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:22:36,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:22:36,913 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:22:36,914 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:22:36,925 INFO L87 Difference]: Start difference. First operand has 2446 states, 2414 states have (on average 1.8500414250207124) internal successors, (4466), 2418 states have internal predecessors, (4466), 23 states have call successors, (23), 7 states have call predecessors, (23), 7 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:22:37,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:22:37,308 INFO L93 Difference]: Finished difference Result 4879 states and 9001 transitions. [2024-11-28 03:22:37,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:22:37,311 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2024-11-28 03:22:37,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:22:37,359 INFO L225 Difference]: With dead ends: 4879 [2024-11-28 03:22:37,359 INFO L226 Difference]: Without dead ends: 2378 [2024-11-28 03:22:37,373 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 [2024-11-28 03:22:37,380 INFO L435 NwaCegarLoop]: 4425 mSDtfsCounter, 392 mSDsluCounter, 4022 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 8447 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 [2024-11-28 03:22:37,382 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [392 Valid, 8447 Invalid, 2 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:22:37,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2378 states. [2024-11-28 03:22:37,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2378 to 2378. [2024-11-28 03:22:37,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2378 states, 2347 states have (on average 1.8376651043885812) internal successors, (4313), 2350 states have internal predecessors, (4313), 23 states have call successors, (23), 7 states have call predecessors, (23), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-28 03:22:37,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2378 states to 2378 states and 4357 transitions. [2024-11-28 03:22:37,600 INFO L78 Accepts]: Start accepts. Automaton has 2378 states and 4357 transitions. Word has length 122 [2024-11-28 03:22:37,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:22:37,601 INFO L471 AbstractCegarLoop]: Abstraction has 2378 states and 4357 transitions. [2024-11-28 03:22:37,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:22:37,602 INFO L276 IsEmpty]: Start isEmpty. Operand 2378 states and 4357 transitions. [2024-11-28 03:22:37,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-28 03:22:37,614 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:22:37,614 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:22:37,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:22:37,615 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:22:37,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:22:37,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1819331420, now seen corresponding path program 1 times [2024-11-28 03:22:37,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:22:37,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306263595] [2024-11-28 03:22:37,618 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:22:37,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:22:37,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:22:38,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:22:38,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:22:38,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306263595] [2024-11-28 03:22:38,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306263595] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:22:38,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:22:38,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:22:38,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313520681] [2024-11-28 03:22:38,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:22:38,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:22:38,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:22:38,129 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:22:38,129 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:22:38,130 INFO L87 Difference]: Start difference. First operand 2378 states and 4357 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:22:39,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:22:39,266 INFO L93 Difference]: Finished difference Result 2890 states and 5165 transitions. [2024-11-28 03:22:39,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:22:39,268 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2024-11-28 03:22:39,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:22:39,284 INFO L225 Difference]: With dead ends: 2890 [2024-11-28 03:22:39,284 INFO L226 Difference]: Without dead ends: 2648 [2024-11-28 03:22:39,287 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 [2024-11-28 03:22:39,288 INFO L435 NwaCegarLoop]: 4268 mSDtfsCounter, 4695 mSDsluCounter, 8697 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4710 SdHoareTripleChecker+Valid, 12965 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:22:39,288 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4710 Valid, 12965 Invalid, 482 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [50 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 03:22:39,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2648 states. [2024-11-28 03:22:39,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2648 to 2627. [2024-11-28 03:22:39,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2627 states, 2573 states have (on average 1.8157792460163233) internal successors, (4672), 2577 states have internal predecessors, (4672), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (38), 37 states have call predecessors, (38), 37 states have call successors, (38) [2024-11-28 03:22:39,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2627 states to 2627 states and 4749 transitions. [2024-11-28 03:22:39,405 INFO L78 Accepts]: Start accepts. Automaton has 2627 states and 4749 transitions. Word has length 122 [2024-11-28 03:22:39,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:22:39,407 INFO L471 AbstractCegarLoop]: Abstraction has 2627 states and 4749 transitions. [2024-11-28 03:22:39,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:22:39,408 INFO L276 IsEmpty]: Start isEmpty. Operand 2627 states and 4749 transitions. [2024-11-28 03:22:39,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-28 03:22:39,411 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:22:39,412 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:22:39,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:22:39,412 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:22:39,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:22:39,416 INFO L85 PathProgramCache]: Analyzing trace with hash 964642136, now seen corresponding path program 1 times [2024-11-28 03:22:39,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:22:39,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561219292] [2024-11-28 03:22:39,417 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:22:39,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:22:39,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:22:39,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:22:39,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:22:39,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561219292] [2024-11-28 03:22:39,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561219292] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:22:39,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:22:39,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:22:39,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266399731] [2024-11-28 03:22:39,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:22:39,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:22:39,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:22:39,830 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:22:39,830 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:22:39,832 INFO L87 Difference]: Start difference. First operand 2627 states and 4749 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:22:40,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:22:40,989 INFO L93 Difference]: Finished difference Result 3435 states and 6034 transitions. [2024-11-28 03:22:40,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:22:40,990 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2024-11-28 03:22:40,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:22:41,008 INFO L225 Difference]: With dead ends: 3435 [2024-11-28 03:22:41,008 INFO L226 Difference]: Without dead ends: 2944 [2024-11-28 03:22:41,012 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 [2024-11-28 03:22:41,014 INFO L435 NwaCegarLoop]: 4479 mSDtfsCounter, 4694 mSDsluCounter, 13445 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4709 SdHoareTripleChecker+Valid, 17924 SdHoareTripleChecker+Invalid, 796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:22:41,015 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4709 Valid, 17924 Invalid, 796 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [29 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 03:22:41,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2944 states. [2024-11-28 03:22:41,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2944 to 2859. [2024-11-28 03:22:41,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2859 states, 2782 states have (on average 1.7961897915168943) internal successors, (4997), 2787 states have internal predecessors, (4997), 55 states have call successors, (55), 19 states have call predecessors, (55), 20 states have return successors, (57), 54 states have call predecessors, (57), 53 states have call successors, (57) [2024-11-28 03:22:41,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2859 states to 2859 states and 5109 transitions. [2024-11-28 03:22:41,151 INFO L78 Accepts]: Start accepts. Automaton has 2859 states and 5109 transitions. Word has length 122 [2024-11-28 03:22:41,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:22:41,152 INFO L471 AbstractCegarLoop]: Abstraction has 2859 states and 5109 transitions. [2024-11-28 03:22:41,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:22:41,153 INFO L276 IsEmpty]: Start isEmpty. Operand 2859 states and 5109 transitions. [2024-11-28 03:22:41,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-28 03:22:41,155 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:22:41,155 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:22:41,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:22:41,156 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:22:41,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:22:41,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1068751910, now seen corresponding path program 1 times [2024-11-28 03:22:41,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:22:41,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968267614] [2024-11-28 03:22:41,158 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:22:41,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:22:41,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:22:41,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:22:41,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:22:41,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968267614] [2024-11-28 03:22:41,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968267614] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:22:41,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:22:41,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:22:41,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424851232] [2024-11-28 03:22:41,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:22:41,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:22:41,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:22:41,488 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:22:41,488 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:22:41,488 INFO L87 Difference]: Start difference. First operand 2859 states and 5109 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:22:42,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:22:42,626 INFO L93 Difference]: Finished difference Result 4171 states and 7193 transitions. [2024-11-28 03:22:42,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:22:42,627 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2024-11-28 03:22:42,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:22:42,647 INFO L225 Difference]: With dead ends: 4171 [2024-11-28 03:22:42,648 INFO L226 Difference]: Without dead ends: 3448 [2024-11-28 03:22:42,652 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 [2024-11-28 03:22:42,653 INFO L435 NwaCegarLoop]: 4475 mSDtfsCounter, 4689 mSDsluCounter, 13433 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4704 SdHoareTripleChecker+Valid, 17908 SdHoareTripleChecker+Invalid, 796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:22:42,654 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4704 Valid, 17908 Invalid, 796 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [29 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 03:22:42,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3448 states. [2024-11-28 03:22:42,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3448 to 3352. [2024-11-28 03:22:42,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3352 states, 3227 states have (on average 1.7657266811279826) internal successors, (5698), 3236 states have internal predecessors, (5698), 87 states have call successors, (87), 31 states have call predecessors, (87), 36 states have return successors, (101), 88 states have call predecessors, (101), 85 states have call successors, (101) [2024-11-28 03:22:42,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3352 states to 3352 states and 5886 transitions. [2024-11-28 03:22:42,821 INFO L78 Accepts]: Start accepts. Automaton has 3352 states and 5886 transitions. Word has length 122 [2024-11-28 03:22:42,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:22:42,822 INFO L471 AbstractCegarLoop]: Abstraction has 3352 states and 5886 transitions. [2024-11-28 03:22:42,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:22:42,823 INFO L276 IsEmpty]: Start isEmpty. Operand 3352 states and 5886 transitions. [2024-11-28 03:22:42,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-28 03:22:42,826 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:22:42,827 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:22:42,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:22:42,827 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:22:42,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:22:42,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1359506712, now seen corresponding path program 1 times [2024-11-28 03:22:42,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:22:42,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821206264] [2024-11-28 03:22:42,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:22:42,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:22:42,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:22:43,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:22:43,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:22:43,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821206264] [2024-11-28 03:22:43,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821206264] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:22:43,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:22:43,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:22:43,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151463911] [2024-11-28 03:22:43,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:22:43,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:22:43,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:22:43,101 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:22:43,101 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:22:43,101 INFO L87 Difference]: Start difference. First operand 3352 states and 5886 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:22:44,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:22:44,256 INFO L93 Difference]: Finished difference Result 5754 states and 9736 transitions. [2024-11-28 03:22:44,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:22:44,258 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2024-11-28 03:22:44,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:22:44,286 INFO L225 Difference]: With dead ends: 5754 [2024-11-28 03:22:44,286 INFO L226 Difference]: Without dead ends: 4538 [2024-11-28 03:22:44,293 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 [2024-11-28 03:22:44,295 INFO L435 NwaCegarLoop]: 4472 mSDtfsCounter, 4684 mSDsluCounter, 13424 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4699 SdHoareTripleChecker+Valid, 17896 SdHoareTripleChecker+Invalid, 796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:22:44,295 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4699 Valid, 17896 Invalid, 796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 03:22:44,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4538 states. [2024-11-28 03:22:44,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4538 to 4419. [2024-11-28 03:22:44,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4419 states, 4192 states have (on average 1.7275763358778626) internal successors, (7242), 4215 states have internal predecessors, (7242), 151 states have call successors, (151), 55 states have call predecessors, (151), 74 states have return successors, (213), 156 states have call predecessors, (213), 149 states have call successors, (213) [2024-11-28 03:22:44,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4419 states to 4419 states and 7606 transitions. [2024-11-28 03:22:44,543 INFO L78 Accepts]: Start accepts. Automaton has 4419 states and 7606 transitions. Word has length 122 [2024-11-28 03:22:44,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:22:44,544 INFO L471 AbstractCegarLoop]: Abstraction has 4419 states and 7606 transitions. [2024-11-28 03:22:44,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:22:44,545 INFO L276 IsEmpty]: Start isEmpty. Operand 4419 states and 7606 transitions. [2024-11-28 03:22:44,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-28 03:22:44,548 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:22:44,548 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:22:44,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:22:44,549 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:22:44,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:22:44,549 INFO L85 PathProgramCache]: Analyzing trace with hash 52364314, now seen corresponding path program 1 times [2024-11-28 03:22:44,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:22:44,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561596399] [2024-11-28 03:22:44,550 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:22:44,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:22:44,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:22:44,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:22:44,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:22:44,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561596399] [2024-11-28 03:22:44,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561596399] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:22:44,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:22:44,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:22:44,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893401885] [2024-11-28 03:22:44,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:22:44,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:22:44,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:22:44,811 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:22:44,811 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:22:44,811 INFO L87 Difference]: Start difference. First operand 4419 states and 7606 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:22:46,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:22:46,182 INFO L93 Difference]: Finished difference Result 9225 states and 15474 transitions. [2024-11-28 03:22:46,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:22:46,183 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2024-11-28 03:22:46,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:22:46,225 INFO L225 Difference]: With dead ends: 9225 [2024-11-28 03:22:46,225 INFO L226 Difference]: Without dead ends: 6942 [2024-11-28 03:22:46,236 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 [2024-11-28 03:22:46,237 INFO L435 NwaCegarLoop]: 4469 mSDtfsCounter, 4679 mSDsluCounter, 13415 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4694 SdHoareTripleChecker+Valid, 17884 SdHoareTripleChecker+Invalid, 796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:22:46,237 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4694 Valid, 17884 Invalid, 796 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [29 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 03:22:46,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6942 states. [2024-11-28 03:22:46,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6942 to 6778. [2024-11-28 03:22:46,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6778 states, 6329 states have (on average 1.6941064939168906) internal successors, (10722), 6398 states have internal predecessors, (10722), 279 states have call successors, (279), 103 states have call predecessors, (279), 168 states have return successors, (533), 292 states have call predecessors, (533), 277 states have call successors, (533) [2024-11-28 03:22:46,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6778 states to 6778 states and 11534 transitions. [2024-11-28 03:22:46,606 INFO L78 Accepts]: Start accepts. Automaton has 6778 states and 11534 transitions. Word has length 122 [2024-11-28 03:22:46,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:22:46,607 INFO L471 AbstractCegarLoop]: Abstraction has 6778 states and 11534 transitions. [2024-11-28 03:22:46,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:22:46,607 INFO L276 IsEmpty]: Start isEmpty. Operand 6778 states and 11534 transitions. [2024-11-28 03:22:46,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-28 03:22:46,613 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:22:46,613 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:22:46,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:22:46,614 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:22:46,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:22:46,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1949861080, now seen corresponding path program 1 times [2024-11-28 03:22:46,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:22:46,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520069159] [2024-11-28 03:22:46,615 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:22:46,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:22:46,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:22:46,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:22:46,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:22:46,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520069159] [2024-11-28 03:22:46,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520069159] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:22:46,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:22:46,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:22:46,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126487527] [2024-11-28 03:22:46,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:22:46,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:22:46,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:22:46,826 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:22:46,826 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:22:46,827 INFO L87 Difference]: Start difference. First operand 6778 states and 11534 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:22:48,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:22:48,351 INFO L93 Difference]: Finished difference Result 17008 states and 28884 transitions. [2024-11-28 03:22:48,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:22:48,352 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2024-11-28 03:22:48,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:22:48,445 INFO L225 Difference]: With dead ends: 17008 [2024-11-28 03:22:48,446 INFO L226 Difference]: Without dead ends: 12366 [2024-11-28 03:22:48,467 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 [2024-11-28 03:22:48,469 INFO L435 NwaCegarLoop]: 4466 mSDtfsCounter, 4674 mSDsluCounter, 13406 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4689 SdHoareTripleChecker+Valid, 17872 SdHoareTripleChecker+Invalid, 796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:22:48,470 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4689 Valid, 17872 Invalid, 796 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [29 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 03:22:48,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12366 states. [2024-11-28 03:22:49,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12366 to 12117. [2024-11-28 03:22:49,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12117 states, 11170 states have (on average 1.678961504028648) internal successors, (18754), 11385 states have internal predecessors, (18754), 535 states have call successors, (535), 199 states have call predecessors, (535), 410 states have return successors, (1557), 564 states have call predecessors, (1557), 533 states have call successors, (1557) [2024-11-28 03:22:49,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12117 states to 12117 states and 20846 transitions. [2024-11-28 03:22:49,206 INFO L78 Accepts]: Start accepts. Automaton has 12117 states and 20846 transitions. Word has length 122 [2024-11-28 03:22:49,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:22:49,207 INFO L471 AbstractCegarLoop]: Abstraction has 12117 states and 20846 transitions. [2024-11-28 03:22:49,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:22:49,208 INFO L276 IsEmpty]: Start isEmpty. Operand 12117 states and 20846 transitions. [2024-11-28 03:22:49,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-28 03:22:49,220 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:22:49,220 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:22:49,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:22:49,221 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:22:49,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:22:49,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1314065318, now seen corresponding path program 1 times [2024-11-28 03:22:49,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:22:49,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82610943] [2024-11-28 03:22:49,222 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:22:49,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:22:49,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:22:49,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:22:49,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:22:49,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82610943] [2024-11-28 03:22:49,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82610943] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:22:49,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:22:49,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:22:49,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900893521] [2024-11-28 03:22:49,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:22:49,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:22:49,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:22:49,459 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:22:49,460 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:22:49,460 INFO L87 Difference]: Start difference. First operand 12117 states and 20846 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:22:50,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:22:50,420 INFO L93 Difference]: Finished difference Result 24548 states and 42967 transitions. [2024-11-28 03:22:50,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:22:50,421 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2024-11-28 03:22:50,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:22:50,503 INFO L225 Difference]: With dead ends: 24548 [2024-11-28 03:22:50,503 INFO L226 Difference]: Without dead ends: 14567 [2024-11-28 03:22:50,547 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 [2024-11-28 03:22:50,548 INFO L435 NwaCegarLoop]: 4245 mSDtfsCounter, 4480 mSDsluCounter, 8381 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4495 SdHoareTripleChecker+Valid, 12626 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:22:50,548 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4495 Valid, 12626 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:22:50,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14567 states. [2024-11-28 03:22:51,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14567 to 12117. [2024-11-28 03:22:51,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12117 states, 11170 states have (on average 1.6760071620411818) internal successors, (18721), 11385 states have internal predecessors, (18721), 535 states have call successors, (535), 199 states have call predecessors, (535), 410 states have return successors, (1557), 564 states have call predecessors, (1557), 533 states have call successors, (1557) [2024-11-28 03:22:51,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12117 states to 12117 states and 20813 transitions. [2024-11-28 03:22:51,579 INFO L78 Accepts]: Start accepts. Automaton has 12117 states and 20813 transitions. Word has length 122 [2024-11-28 03:22:51,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:22:51,580 INFO L471 AbstractCegarLoop]: Abstraction has 12117 states and 20813 transitions. [2024-11-28 03:22:51,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:22:51,580 INFO L276 IsEmpty]: Start isEmpty. Operand 12117 states and 20813 transitions. [2024-11-28 03:22:51,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-28 03:22:51,590 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:22:51,591 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:22:51,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 03:22:51,595 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:22:51,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:22:51,595 INFO L85 PathProgramCache]: Analyzing trace with hash 287005788, now seen corresponding path program 1 times [2024-11-28 03:22:51,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:22:51,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719322286] [2024-11-28 03:22:51,596 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:22:51,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:22:51,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:22:51,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:22:51,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:22:51,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719322286] [2024-11-28 03:22:51,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719322286] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:22:51,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:22:51,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:22:51,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892692064] [2024-11-28 03:22:51,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:22:51,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:22:51,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:22:51,828 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:22:51,828 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:22:51,828 INFO L87 Difference]: Start difference. First operand 12117 states and 20813 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:22:54,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:22:54,231 INFO L93 Difference]: Finished difference Result 36055 states and 62984 transitions. [2024-11-28 03:22:54,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:22:54,231 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2024-11-28 03:22:54,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:22:54,381 INFO L225 Difference]: With dead ends: 36055 [2024-11-28 03:22:54,382 INFO L226 Difference]: Without dead ends: 26074 [2024-11-28 03:22:54,426 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 [2024-11-28 03:22:54,426 INFO L435 NwaCegarLoop]: 4452 mSDtfsCounter, 4882 mSDsluCounter, 13362 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4905 SdHoareTripleChecker+Valid, 17814 SdHoareTripleChecker+Invalid, 802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:22:54,427 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4905 Valid, 17814 Invalid, 802 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [32 Valid, 770 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 03:22:54,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26074 states. [2024-11-28 03:22:55,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26074 to 23914. [2024-11-28 03:22:55,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23914 states, 21841 states have (on average 1.676525800100728) internal successors, (36617), 22510 states have internal predecessors, (36617), 1015 states have call successors, (1015), 391 states have call predecessors, (1015), 1056 states have return successors, (5109), 1076 states have call predecessors, (5109), 1013 states have call successors, (5109) [2024-11-28 03:22:56,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23914 states to 23914 states and 42741 transitions. [2024-11-28 03:22:56,064 INFO L78 Accepts]: Start accepts. Automaton has 23914 states and 42741 transitions. Word has length 122 [2024-11-28 03:22:56,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:22:56,064 INFO L471 AbstractCegarLoop]: Abstraction has 23914 states and 42741 transitions. [2024-11-28 03:22:56,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:22:56,065 INFO L276 IsEmpty]: Start isEmpty. Operand 23914 states and 42741 transitions. [2024-11-28 03:22:56,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-28 03:22:56,079 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:22:56,081 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:22:56,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 03:22:56,081 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:22:56,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:22:56,083 INFO L85 PathProgramCache]: Analyzing trace with hash -769725414, now seen corresponding path program 1 times [2024-11-28 03:22:56,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:22:56,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686826570] [2024-11-28 03:22:56,083 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:22:56,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:22:56,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:22:56,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:22:56,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:22:56,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686826570] [2024-11-28 03:22:56,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686826570] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:22:56,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:22:56,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:22:56,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320289578] [2024-11-28 03:22:56,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:22:56,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:22:56,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:22:56,408 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:22:56,408 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:22:56,408 INFO L87 Difference]: Start difference. First operand 23914 states and 42741 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:22:59,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:22:59,591 INFO L93 Difference]: Finished difference Result 76528 states and 143042 transitions. [2024-11-28 03:22:59,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:22:59,592 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2024-11-28 03:22:59,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:23:00,012 INFO L225 Difference]: With dead ends: 76528 [2024-11-28 03:23:00,012 INFO L226 Difference]: Without dead ends: 54750 [2024-11-28 03:23:00,118 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 [2024-11-28 03:23:00,120 INFO L435 NwaCegarLoop]: 4448 mSDtfsCounter, 4715 mSDsluCounter, 13350 mSDsCounter, 0 mSdLazyCounter, 940 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4729 SdHoareTripleChecker+Valid, 17798 SdHoareTripleChecker+Invalid, 971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 940 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:23:00,124 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4729 Valid, 17798 Invalid, 971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 940 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 03:23:00,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54750 states. [2024-11-28 03:23:04,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54750 to 50481. [2024-11-28 03:23:04,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50481 states, 45702 states have (on average 1.6860750076583082) internal successors, (77057), 47765 states have internal predecessors, (77057), 1943 states have call successors, (1943), 775 states have call predecessors, (1943), 2834 states have return successors, (18325), 2068 states have call predecessors, (18325), 1941 states have call successors, (18325) [2024-11-28 03:23:04,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50481 states to 50481 states and 97325 transitions. [2024-11-28 03:23:04,640 INFO L78 Accepts]: Start accepts. Automaton has 50481 states and 97325 transitions. Word has length 122 [2024-11-28 03:23:04,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:23:04,641 INFO L471 AbstractCegarLoop]: Abstraction has 50481 states and 97325 transitions. [2024-11-28 03:23:04,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:23:04,641 INFO L276 IsEmpty]: Start isEmpty. Operand 50481 states and 97325 transitions. [2024-11-28 03:23:04,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-28 03:23:04,667 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:23:04,668 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:23:04,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 03:23:04,668 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:23:04,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:23:04,669 INFO L85 PathProgramCache]: Analyzing trace with hash 581659804, now seen corresponding path program 1 times [2024-11-28 03:23:04,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:23:04,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086936591] [2024-11-28 03:23:04,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:23:04,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:23:04,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:23:04,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:23:04,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:23:04,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086936591] [2024-11-28 03:23:04,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086936591] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:23:04,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:23:04,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:23:04,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609324092] [2024-11-28 03:23:04,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:23:04,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:23:04,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:23:04,864 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:23:04,864 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:23:04,864 INFO L87 Difference]: Start difference. First operand 50481 states and 97325 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:23:11,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:23:11,358 INFO L93 Difference]: Finished difference Result 168263 states and 349944 transitions. [2024-11-28 03:23:11,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:23:11,359 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2024-11-28 03:23:11,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:23:12,452 INFO L225 Difference]: With dead ends: 168263 [2024-11-28 03:23:12,452 INFO L226 Difference]: Without dead ends: 119918 [2024-11-28 03:23:12,703 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 [2024-11-28 03:23:12,704 INFO L435 NwaCegarLoop]: 4446 mSDtfsCounter, 4812 mSDsluCounter, 13344 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4835 SdHoareTripleChecker+Valid, 17790 SdHoareTripleChecker+Invalid, 802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:23:12,704 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4835 Valid, 17790 Invalid, 802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 770 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 03:23:12,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119918 states.