./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/Problem05_label43+token_ring.07.cil-1.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_dbd7b4a2-ba2d-4a32-b68b-0ca298185593/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbd7b4a2-ba2d-4a32-b68b-0ca298185593/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_dbd7b4a2-ba2d-4a32-b68b-0ca298185593/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbd7b4a2-ba2d-4a32-b68b-0ca298185593/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label43+token_ring.07.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbd7b4a2-ba2d-4a32-b68b-0ca298185593/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_dbd7b4a2-ba2d-4a32-b68b-0ca298185593/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 54f1be55645106b43145d214f59b6f833268ce7c7f84e399c536bf03a2c9679b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 05:04:11,688 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 05:04:11,811 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbd7b4a2-ba2d-4a32-b68b-0ca298185593/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 05:04:11,823 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 05:04:11,823 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 05:04:11,866 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 05:04:11,867 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 05:04:11,867 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 05:04:11,868 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 05:04:11,868 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 05:04:11,869 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 05:04:11,870 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 05:04:11,870 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 05:04:11,870 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 05:04:11,871 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 05:04:11,871 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 05:04:11,871 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 05:04:11,871 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 05:04:11,871 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 05:04:11,872 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 05:04:11,872 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 05:04:11,872 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 05:04:11,872 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 05:04:11,872 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 05:04:11,872 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 05:04:11,872 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 05:04:11,872 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 05:04:11,872 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 05:04:11,872 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 05:04:11,872 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:04:11,873 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:04:11,873 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:04:11,873 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:04:11,873 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 05:04:11,873 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:04:11,873 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:04:11,873 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:04:11,873 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:04:11,873 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 05:04:11,873 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 05:04:11,874 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 05:04:11,874 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 05:04:11,874 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 05:04:11,874 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 05:04:11,874 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 05:04:11,874 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 05:04:11,874 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 05:04:11,874 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 05:04:11,874 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_dbd7b4a2-ba2d-4a32-b68b-0ca298185593/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 -> 54f1be55645106b43145d214f59b6f833268ce7c7f84e399c536bf03a2c9679b [2024-11-28 05:04:12,248 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 05:04:12,263 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 05:04:12,265 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 05:04:12,268 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 05:04:12,269 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 05:04:12,271 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbd7b4a2-ba2d-4a32-b68b-0ca298185593/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/combinations/Problem05_label43+token_ring.07.cil-1.c [2024-11-28 05:04:15,463 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbd7b4a2-ba2d-4a32-b68b-0ca298185593/bin/uautomizer-verify-aQ6SnzHsRB/data/61e80e347/5f547bd211324848b7e1d5c3c781f78d/FLAG5f1771a73 [2024-11-28 05:04:16,347 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 05:04:16,348 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbd7b4a2-ba2d-4a32-b68b-0ca298185593/sv-benchmarks/c/combinations/Problem05_label43+token_ring.07.cil-1.c [2024-11-28 05:04:16,406 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbd7b4a2-ba2d-4a32-b68b-0ca298185593/bin/uautomizer-verify-aQ6SnzHsRB/data/61e80e347/5f547bd211324848b7e1d5c3c781f78d/FLAG5f1771a73 [2024-11-28 05:04:16,543 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbd7b4a2-ba2d-4a32-b68b-0ca298185593/bin/uautomizer-verify-aQ6SnzHsRB/data/61e80e347/5f547bd211324848b7e1d5c3c781f78d [2024-11-28 05:04:16,545 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 05:04:16,547 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 05:04:16,548 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 05:04:16,548 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 05:04:16,554 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 05:04:16,555 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:04:16" (1/1) ... [2024-11-28 05:04:16,558 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fea3448 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:16, skipping insertion in model container [2024-11-28 05:04:16,558 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:04:16" (1/1) ... [2024-11-28 05:04:16,797 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 05:04:18,882 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_dbd7b4a2-ba2d-4a32-b68b-0ca298185593/sv-benchmarks/c/combinations/Problem05_label43+token_ring.07.cil-1.c[381679,381692] [2024-11-28 05:04:18,930 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_dbd7b4a2-ba2d-4a32-b68b-0ca298185593/sv-benchmarks/c/combinations/Problem05_label43+token_ring.07.cil-1.c[383339,383352] [2024-11-28 05:04:19,212 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:04:19,226 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 05:04:20,485 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_dbd7b4a2-ba2d-4a32-b68b-0ca298185593/sv-benchmarks/c/combinations/Problem05_label43+token_ring.07.cil-1.c[381679,381692] [2024-11-28 05:04:20,489 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_dbd7b4a2-ba2d-4a32-b68b-0ca298185593/sv-benchmarks/c/combinations/Problem05_label43+token_ring.07.cil-1.c[383339,383352] [2024-11-28 05:04:20,518 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:04:20,595 INFO L204 MainTranslator]: Completed translation [2024-11-28 05:04:20,597 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:20 WrapperNode [2024-11-28 05:04:20,598 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 05:04:20,598 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 05:04:20,600 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 05:04:20,601 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 05:04:20,611 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:20" (1/1) ... [2024-11-28 05:04:20,701 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:20" (1/1) ... [2024-11-28 05:04:21,094 INFO L138 Inliner]: procedures = 58, calls = 62, calls flagged for inlining = 36, calls inlined = 36, statements flattened = 12922 [2024-11-28 05:04:21,095 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 05:04:21,096 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 05:04:21,096 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 05:04:21,096 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 05:04:21,106 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:20" (1/1) ... [2024-11-28 05:04:21,107 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:20" (1/1) ... [2024-11-28 05:04:21,258 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:20" (1/1) ... [2024-11-28 05:04:21,360 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 05:04:21,364 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:20" (1/1) ... [2024-11-28 05:04:21,364 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:20" (1/1) ... [2024-11-28 05:04:21,595 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:20" (1/1) ... [2024-11-28 05:04:21,613 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:20" (1/1) ... [2024-11-28 05:04:21,711 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:20" (1/1) ... [2024-11-28 05:04:21,877 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:20" (1/1) ... [2024-11-28 05:04:21,901 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:20" (1/1) ... [2024-11-28 05:04:21,959 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 05:04:21,961 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 05:04:21,961 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 05:04:21,962 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 05:04:21,963 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:20" (1/1) ... [2024-11-28 05:04:21,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:04:21,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbd7b4a2-ba2d-4a32-b68b-0ca298185593/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:04:22,005 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbd7b4a2-ba2d-4a32-b68b-0ca298185593/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 05:04:22,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbd7b4a2-ba2d-4a32-b68b-0ca298185593/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 05:04:22,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 05:04:22,047 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-28 05:04:22,047 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-28 05:04:22,047 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-28 05:04:22,047 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-28 05:04:22,047 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-28 05:04:22,047 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-28 05:04:22,047 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-28 05:04:22,047 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-28 05:04:22,047 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-28 05:04:22,048 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-28 05:04:22,048 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-28 05:04:22,048 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-28 05:04:22,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 05:04:22,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 05:04:22,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 05:04:22,226 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 05:04:22,229 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 05:04:34,715 INFO L? ?]: Removed 1725 outVars from TransFormulas that were not future-live. [2024-11-28 05:04:34,715 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 05:04:34,811 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 05:04:34,811 INFO L312 CfgBuilder]: Removed 22 assume(true) statements. [2024-11-28 05:04:34,812 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:04:34 BoogieIcfgContainer [2024-11-28 05:04:34,812 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 05:04:34,817 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 05:04:34,817 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 05:04:34,822 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 05:04:34,823 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:04:16" (1/3) ... [2024-11-28 05:04:34,823 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@293f32d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:04:34, skipping insertion in model container [2024-11-28 05:04:34,823 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:20" (2/3) ... [2024-11-28 05:04:34,824 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@293f32d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:04:34, skipping insertion in model container [2024-11-28 05:04:34,824 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:04:34" (3/3) ... [2024-11-28 05:04:34,826 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem05_label43+token_ring.07.cil-1.c [2024-11-28 05:04:34,843 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 05:04:34,847 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem05_label43+token_ring.07.cil-1.c that has 7 procedures, 2438 locations, 1 initial locations, 11 loop locations, and 2 error locations. [2024-11-28 05:04:35,006 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 05:04:35,025 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;@2401cd38, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 05:04:35,026 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-28 05:04:35,042 INFO L276 IsEmpty]: Start isEmpty. Operand has 2438 states, 2409 states have (on average 1.8497301784973017) internal successors, (4456), 2411 states have internal predecessors, (4456), 21 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-28 05:04:35,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-28 05:04:35,066 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:04:35,066 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] [2024-11-28 05:04:35,068 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:04:35,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:04:35,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1475632833, now seen corresponding path program 1 times [2024-11-28 05:04:35,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:04:35,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074256091] [2024-11-28 05:04:35,089 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:04:35,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:04:35,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:04:35,581 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 05:04:35,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:04:35,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074256091] [2024-11-28 05:04:35,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074256091] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:04:35,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:04:35,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:04:35,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973087171] [2024-11-28 05:04:35,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:04:35,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:04:35,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:04:35,627 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:04:35,627 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:04:35,634 INFO L87 Difference]: Start difference. First operand has 2438 states, 2409 states have (on average 1.8497301784973017) internal successors, (4456), 2411 states have internal predecessors, (4456), 21 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) 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, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 05:04:35,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:04:35,925 INFO L93 Difference]: Finished difference Result 4864 states and 8973 transitions. [2024-11-28 05:04:35,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:04:35,930 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, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2024-11-28 05:04:35,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:04:35,971 INFO L225 Difference]: With dead ends: 4864 [2024-11-28 05:04:35,971 INFO L226 Difference]: Without dead ends: 2371 [2024-11-28 05:04:35,982 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 05:04:35,985 INFO L435 NwaCegarLoop]: 4413 mSDtfsCounter, 380 mSDsluCounter, 4022 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 8435 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 05:04:35,986 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [380 Valid, 8435 Invalid, 2 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:04:36,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2371 states. [2024-11-28 05:04:36,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2371 to 2371. [2024-11-28 05:04:36,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2371 states, 2342 states have (on average 1.8373185311699403) internal successors, (4303), 2344 states have internal predecessors, (4303), 21 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-28 05:04:36,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2371 states to 2371 states and 4345 transitions. [2024-11-28 05:04:36,158 INFO L78 Accepts]: Start accepts. Automaton has 2371 states and 4345 transitions. Word has length 121 [2024-11-28 05:04:36,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:04:36,160 INFO L471 AbstractCegarLoop]: Abstraction has 2371 states and 4345 transitions. [2024-11-28 05:04:36,160 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, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 05:04:36,161 INFO L276 IsEmpty]: Start isEmpty. Operand 2371 states and 4345 transitions. [2024-11-28 05:04:36,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-28 05:04:36,166 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:04:36,166 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] [2024-11-28 05:04:36,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 05:04:36,167 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:04:36,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:04:36,168 INFO L85 PathProgramCache]: Analyzing trace with hash 2098914435, now seen corresponding path program 1 times [2024-11-28 05:04:36,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:04:36,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895633877] [2024-11-28 05:04:36,169 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:04:36,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:04:36,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:04:36,497 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 05:04:36,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:04:36,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895633877] [2024-11-28 05:04:36,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895633877] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:04:36,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:04:36,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:04:36,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114340976] [2024-11-28 05:04:36,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:04:36,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:04:36,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:04:36,501 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:04:36,501 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:04:36,502 INFO L87 Difference]: Start difference. First operand 2371 states and 4345 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, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 05:04:37,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:04:37,258 INFO L93 Difference]: Finished difference Result 2869 states and 5129 transitions. [2024-11-28 05:04:37,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 05:04:37,259 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, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2024-11-28 05:04:37,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:04:37,275 INFO L225 Difference]: With dead ends: 2869 [2024-11-28 05:04:37,275 INFO L226 Difference]: Without dead ends: 2634 [2024-11-28 05:04:37,278 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 05:04:37,280 INFO L435 NwaCegarLoop]: 4257 mSDtfsCounter, 4681 mSDsluCounter, 8668 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4696 SdHoareTripleChecker+Valid, 12925 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 05:04:37,281 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4696 Valid, 12925 Invalid, 473 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [46 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 05:04:37,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2634 states. [2024-11-28 05:04:37,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2634 to 2615. [2024-11-28 05:04:37,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2615 states, 2563 states have (on average 1.815060476004682) internal successors, (4652), 2566 states have internal predecessors, (4652), 37 states have call successors, (37), 12 states have call predecessors, (37), 13 states have return successors, (38), 37 states have call predecessors, (38), 37 states have call successors, (38) [2024-11-28 05:04:37,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2615 states to 2615 states and 4727 transitions. [2024-11-28 05:04:37,390 INFO L78 Accepts]: Start accepts. Automaton has 2615 states and 4727 transitions. Word has length 121 [2024-11-28 05:04:37,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:04:37,390 INFO L471 AbstractCegarLoop]: Abstraction has 2615 states and 4727 transitions. [2024-11-28 05:04:37,391 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, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 05:04:37,391 INFO L276 IsEmpty]: Start isEmpty. Operand 2615 states and 4727 transitions. [2024-11-28 05:04:37,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-28 05:04:37,397 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:04:37,397 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] [2024-11-28 05:04:37,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 05:04:37,397 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:04:37,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:04:37,398 INFO L85 PathProgramCache]: Analyzing trace with hash -6866169, now seen corresponding path program 1 times [2024-11-28 05:04:37,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:04:37,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041334613] [2024-11-28 05:04:37,398 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:04:37,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:04:37,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:04:37,765 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 05:04:37,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:04:37,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041334613] [2024-11-28 05:04:37,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041334613] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:04:37,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:04:37,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 05:04:37,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197508145] [2024-11-28 05:04:37,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:04:37,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 05:04:37,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:04:37,767 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 05:04:37,768 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:04:37,768 INFO L87 Difference]: Start difference. First operand 2615 states and 4727 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, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 05:04:38,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:04:38,801 INFO L93 Difference]: Finished difference Result 3404 states and 5978 transitions. [2024-11-28 05:04:38,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 05:04:38,805 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, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2024-11-28 05:04:38,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:04:38,829 INFO L225 Difference]: With dead ends: 3404 [2024-11-28 05:04:38,829 INFO L226 Difference]: Without dead ends: 2925 [2024-11-28 05:04:38,832 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 05:04:38,833 INFO L435 NwaCegarLoop]: 4457 mSDtfsCounter, 4681 mSDsluCounter, 13380 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4696 SdHoareTripleChecker+Valid, 17837 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 05:04:38,833 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4696 Valid, 17837 Invalid, 779 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [27 Valid, 752 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 05:04:38,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2925 states. [2024-11-28 05:04:38,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2925 to 2842. [2024-11-28 05:04:38,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2842 states, 2767 states have (on average 1.795084929526563) internal successors, (4967), 2771 states have internal predecessors, (4967), 53 states have call successors, (53), 18 states have call predecessors, (53), 20 states have return successors, (57), 54 states have call predecessors, (57), 53 states have call successors, (57) [2024-11-28 05:04:38,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2842 states to 2842 states and 5077 transitions. [2024-11-28 05:04:38,970 INFO L78 Accepts]: Start accepts. Automaton has 2842 states and 5077 transitions. Word has length 121 [2024-11-28 05:04:38,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:04:38,970 INFO L471 AbstractCegarLoop]: Abstraction has 2842 states and 5077 transitions. [2024-11-28 05:04:38,970 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, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 05:04:38,971 INFO L276 IsEmpty]: Start isEmpty. Operand 2842 states and 5077 transitions. [2024-11-28 05:04:38,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-28 05:04:38,974 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:04:38,974 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] [2024-11-28 05:04:38,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 05:04:38,974 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:04:38,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:04:38,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1873574843, now seen corresponding path program 1 times [2024-11-28 05:04:38,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:04:38,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415552550] [2024-11-28 05:04:38,975 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:04:38,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:04:39,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:04:39,357 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 05:04:39,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:04:39,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415552550] [2024-11-28 05:04:39,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415552550] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:04:39,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:04:39,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 05:04:39,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629793371] [2024-11-28 05:04:39,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:04:39,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 05:04:39,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:04:39,361 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 05:04:39,364 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:04:39,364 INFO L87 Difference]: Start difference. First operand 2842 states and 5077 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, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 05:04:40,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:04:40,565 INFO L93 Difference]: Finished difference Result 4125 states and 7107 transitions. [2024-11-28 05:04:40,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 05:04:40,566 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, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2024-11-28 05:04:40,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:04:40,581 INFO L225 Difference]: With dead ends: 4125 [2024-11-28 05:04:40,581 INFO L226 Difference]: Without dead ends: 3419 [2024-11-28 05:04:40,584 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 05:04:40,585 INFO L435 NwaCegarLoop]: 4453 mSDtfsCounter, 4676 mSDsluCounter, 13368 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4691 SdHoareTripleChecker+Valid, 17821 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 05:04:40,585 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4691 Valid, 17821 Invalid, 779 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [27 Valid, 752 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 05:04:40,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3419 states. [2024-11-28 05:04:40,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3419 to 3325. [2024-11-28 05:04:40,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3325 states, 3202 states have (on average 1.7638975640224859) internal successors, (5648), 3210 states have internal predecessors, (5648), 85 states have call successors, (85), 30 states have call predecessors, (85), 36 states have return successors, (101), 88 states have call predecessors, (101), 85 states have call successors, (101) [2024-11-28 05:04:40,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3325 states to 3325 states and 5834 transitions. [2024-11-28 05:04:40,729 INFO L78 Accepts]: Start accepts. Automaton has 3325 states and 5834 transitions. Word has length 121 [2024-11-28 05:04:40,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:04:40,729 INFO L471 AbstractCegarLoop]: Abstraction has 3325 states and 5834 transitions. [2024-11-28 05:04:40,730 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, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 05:04:40,730 INFO L276 IsEmpty]: Start isEmpty. Operand 3325 states and 5834 transitions. [2024-11-28 05:04:40,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-28 05:04:40,733 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:04:40,733 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] [2024-11-28 05:04:40,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 05:04:40,734 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:04:40,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:04:40,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1114250055, now seen corresponding path program 1 times [2024-11-28 05:04:40,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:04:40,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280889620] [2024-11-28 05:04:40,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:04:40,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:04:40,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:04:40,970 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 05:04:40,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:04:40,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280889620] [2024-11-28 05:04:40,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280889620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:04:40,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:04:40,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 05:04:40,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498461455] [2024-11-28 05:04:40,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:04:40,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 05:04:40,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:04:40,973 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 05:04:40,973 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:04:40,974 INFO L87 Difference]: Start difference. First operand 3325 states and 5834 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, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 05:04:42,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:04:42,041 INFO L93 Difference]: Finished difference Result 5678 states and 9590 transitions. [2024-11-28 05:04:42,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 05:04:42,042 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, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2024-11-28 05:04:42,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:04:42,069 INFO L225 Difference]: With dead ends: 5678 [2024-11-28 05:04:42,069 INFO L226 Difference]: Without dead ends: 4489 [2024-11-28 05:04:42,075 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 05:04:42,076 INFO L435 NwaCegarLoop]: 4450 mSDtfsCounter, 4671 mSDsluCounter, 13359 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4686 SdHoareTripleChecker+Valid, 17809 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 05:04:42,076 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4686 Valid, 17809 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 752 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 05:04:42,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4489 states. [2024-11-28 05:04:42,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4489 to 4372. [2024-11-28 05:04:42,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4372 states, 4147 states have (on average 1.7246202073788282) internal successors, (7152), 4169 states have internal predecessors, (7152), 149 states have call successors, (149), 54 states have call predecessors, (149), 74 states have return successors, (213), 156 states have call predecessors, (213), 149 states have call successors, (213) [2024-11-28 05:04:42,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4372 states to 4372 states and 7514 transitions. [2024-11-28 05:04:42,276 INFO L78 Accepts]: Start accepts. Automaton has 4372 states and 7514 transitions. Word has length 121 [2024-11-28 05:04:42,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:04:42,277 INFO L471 AbstractCegarLoop]: Abstraction has 4372 states and 7514 transitions. [2024-11-28 05:04:42,277 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, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 05:04:42,277 INFO L276 IsEmpty]: Start isEmpty. Operand 4372 states and 7514 transitions. [2024-11-28 05:04:42,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-28 05:04:42,281 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:04:42,281 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] [2024-11-28 05:04:42,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 05:04:42,281 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:04:42,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:04:42,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1283220475, now seen corresponding path program 1 times [2024-11-28 05:04:42,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:04:42,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159991262] [2024-11-28 05:04:42,282 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:04:42,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:04:42,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:04:42,509 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 05:04:42,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:04:42,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159991262] [2024-11-28 05:04:42,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159991262] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:04:42,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:04:42,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 05:04:42,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656265643] [2024-11-28 05:04:42,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:04:42,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 05:04:42,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:04:42,515 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 05:04:42,515 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:04:42,515 INFO L87 Difference]: Start difference. First operand 4372 states and 7514 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, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 05:04:43,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:04:43,631 INFO L93 Difference]: Finished difference Result 9089 states and 15208 transitions. [2024-11-28 05:04:43,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 05:04:43,632 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, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2024-11-28 05:04:43,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:04:43,673 INFO L225 Difference]: With dead ends: 9089 [2024-11-28 05:04:43,673 INFO L226 Difference]: Without dead ends: 6853 [2024-11-28 05:04:43,684 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 05:04:43,685 INFO L435 NwaCegarLoop]: 4447 mSDtfsCounter, 4666 mSDsluCounter, 13350 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4681 SdHoareTripleChecker+Valid, 17797 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 05:04:43,685 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4681 Valid, 17797 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 752 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 05:04:43,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6853 states. [2024-11-28 05:04:44,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6853 to 6691. [2024-11-28 05:04:44,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6691 states, 6244 states have (on average 1.6899423446508648) internal successors, (10552), 6312 states have internal predecessors, (10552), 277 states have call successors, (277), 102 states have call predecessors, (277), 168 states have return successors, (533), 292 states have call predecessors, (533), 277 states have call successors, (533) [2024-11-28 05:04:44,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6691 states to 6691 states and 11362 transitions. [2024-11-28 05:04:44,157 INFO L78 Accepts]: Start accepts. Automaton has 6691 states and 11362 transitions. Word has length 121 [2024-11-28 05:04:44,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:04:44,158 INFO L471 AbstractCegarLoop]: Abstraction has 6691 states and 11362 transitions. [2024-11-28 05:04:44,158 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, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 05:04:44,158 INFO L276 IsEmpty]: Start isEmpty. Operand 6691 states and 11362 transitions. [2024-11-28 05:04:44,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-28 05:04:44,164 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:04:44,165 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] [2024-11-28 05:04:44,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 05:04:44,165 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:04:44,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:04:44,165 INFO L85 PathProgramCache]: Analyzing trace with hash -252179577, now seen corresponding path program 1 times [2024-11-28 05:04:44,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:04:44,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272693093] [2024-11-28 05:04:44,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:04:44,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:04:44,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:04:44,353 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 05:04:44,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:04:44,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272693093] [2024-11-28 05:04:44,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272693093] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:04:44,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:04:44,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 05:04:44,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272206151] [2024-11-28 05:04:44,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:04:44,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 05:04:44,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:04:44,355 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 05:04:44,355 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:04:44,356 INFO L87 Difference]: Start difference. First operand 6691 states and 11362 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, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 05:04:45,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:04:45,637 INFO L93 Difference]: Finished difference Result 16752 states and 28378 transitions. [2024-11-28 05:04:45,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 05:04:45,637 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, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2024-11-28 05:04:45,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:04:45,730 INFO L225 Difference]: With dead ends: 16752 [2024-11-28 05:04:45,731 INFO L226 Difference]: Without dead ends: 12197 [2024-11-28 05:04:45,752 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 05:04:45,752 INFO L435 NwaCegarLoop]: 4444 mSDtfsCounter, 4661 mSDsluCounter, 13341 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4676 SdHoareTripleChecker+Valid, 17785 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 05:04:45,753 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4676 Valid, 17785 Invalid, 779 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [27 Valid, 752 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 05:04:45,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12197 states. [2024-11-28 05:04:46,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12197 to 11950. [2024-11-28 05:04:46,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11950 states, 11005 states have (on average 1.674148114493412) internal successors, (18424), 11219 states have internal predecessors, (18424), 533 states have call successors, (533), 198 states have call predecessors, (533), 410 states have return successors, (1557), 564 states have call predecessors, (1557), 533 states have call successors, (1557) [2024-11-28 05:04:46,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11950 states to 11950 states and 20514 transitions. [2024-11-28 05:04:46,622 INFO L78 Accepts]: Start accepts. Automaton has 11950 states and 20514 transitions. Word has length 121 [2024-11-28 05:04:46,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:04:46,622 INFO L471 AbstractCegarLoop]: Abstraction has 11950 states and 20514 transitions. [2024-11-28 05:04:46,623 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, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 05:04:46,623 INFO L276 IsEmpty]: Start isEmpty. Operand 11950 states and 20514 transitions. [2024-11-28 05:04:46,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-28 05:04:46,633 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:04:46,633 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] [2024-11-28 05:04:46,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 05:04:46,633 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:04:46,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:04:46,634 INFO L85 PathProgramCache]: Analyzing trace with hash 2136384453, now seen corresponding path program 1 times [2024-11-28 05:04:46,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:04:46,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182904401] [2024-11-28 05:04:46,634 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:04:46,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:04:46,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:04:46,846 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 05:04:46,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:04:46,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182904401] [2024-11-28 05:04:46,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182904401] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:04:46,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:04:46,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:04:46,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421552926] [2024-11-28 05:04:46,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:04:46,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:04:46,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:04:46,848 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:04:46,848 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:04:46,848 INFO L87 Difference]: Start difference. First operand 11950 states and 20514 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, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 05:04:47,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:04:47,880 INFO L93 Difference]: Finished difference Result 24214 states and 42303 transitions. [2024-11-28 05:04:47,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:04:47,881 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, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2024-11-28 05:04:47,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:04:47,968 INFO L225 Difference]: With dead ends: 24214 [2024-11-28 05:04:47,968 INFO L226 Difference]: Without dead ends: 14400 [2024-11-28 05:04:48,013 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 05:04:48,014 INFO L435 NwaCegarLoop]: 4234 mSDtfsCounter, 4467 mSDsluCounter, 8363 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4482 SdHoareTripleChecker+Valid, 12597 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 05:04:48,014 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4482 Valid, 12597 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 05:04:48,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14400 states. [2024-11-28 05:04:49,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14400 to 11950. [2024-11-28 05:04:49,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11950 states, 11005 states have (on average 1.6711494775102227) internal successors, (18391), 11219 states have internal predecessors, (18391), 533 states have call successors, (533), 198 states have call predecessors, (533), 410 states have return successors, (1557), 564 states have call predecessors, (1557), 533 states have call successors, (1557) [2024-11-28 05:04:49,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11950 states to 11950 states and 20481 transitions. [2024-11-28 05:04:49,095 INFO L78 Accepts]: Start accepts. Automaton has 11950 states and 20481 transitions. Word has length 121 [2024-11-28 05:04:49,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:04:49,096 INFO L471 AbstractCegarLoop]: Abstraction has 11950 states and 20481 transitions. [2024-11-28 05:04:49,097 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, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 05:04:49,098 INFO L276 IsEmpty]: Start isEmpty. Operand 11950 states and 20481 transitions. [2024-11-28 05:04:49,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-28 05:04:49,107 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:04:49,109 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] [2024-11-28 05:04:49,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 05:04:49,110 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:04:49,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:04:49,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1079653251, now seen corresponding path program 1 times [2024-11-28 05:04:49,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:04:49,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436742210] [2024-11-28 05:04:49,113 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:04:49,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:04:49,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:04:49,333 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 05:04:49,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:04:49,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436742210] [2024-11-28 05:04:49,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436742210] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:04:49,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:04:49,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 05:04:49,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738208803] [2024-11-28 05:04:49,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:04:49,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 05:04:49,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:04:49,335 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 05:04:49,335 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:04:49,336 INFO L87 Difference]: Start difference. First operand 11950 states and 20481 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, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 05:04:51,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:04:51,086 INFO L93 Difference]: Finished difference Result 35559 states and 61998 transitions. [2024-11-28 05:04:51,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 05:04:51,087 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, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2024-11-28 05:04:51,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:04:51,235 INFO L225 Difference]: With dead ends: 35559 [2024-11-28 05:04:51,235 INFO L226 Difference]: Without dead ends: 25745 [2024-11-28 05:04:51,276 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 05:04:51,277 INFO L435 NwaCegarLoop]: 4430 mSDtfsCounter, 4869 mSDsluCounter, 13297 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4892 SdHoareTripleChecker+Valid, 17727 SdHoareTripleChecker+Invalid, 785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 05:04:51,277 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4892 Valid, 17727 Invalid, 785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 05:04:51,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25745 states. [2024-11-28 05:04:52,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25745 to 23587. [2024-11-28 05:04:52,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23587 states, 21516 states have (on average 1.6716397099832683) internal successors, (35967), 22184 states have internal predecessors, (35967), 1013 states have call successors, (1013), 390 states have call predecessors, (1013), 1056 states have return successors, (5109), 1076 states have call predecessors, (5109), 1013 states have call successors, (5109) [2024-11-28 05:04:53,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23587 states to 23587 states and 42089 transitions. [2024-11-28 05:04:53,022 INFO L78 Accepts]: Start accepts. Automaton has 23587 states and 42089 transitions. Word has length 121 [2024-11-28 05:04:53,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:04:53,023 INFO L471 AbstractCegarLoop]: Abstraction has 23587 states and 42089 transitions. [2024-11-28 05:04:53,023 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, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 05:04:53,024 INFO L276 IsEmpty]: Start isEmpty. Operand 23587 states and 42089 transitions. [2024-11-28 05:04:53,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-28 05:04:53,036 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:04:53,036 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] [2024-11-28 05:04:53,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 05:04:53,037 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:04:53,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:04:53,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1863928827, now seen corresponding path program 1 times [2024-11-28 05:04:53,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:04:53,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516638942] [2024-11-28 05:04:53,042 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:04:53,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:04:53,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:04:53,239 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 05:04:53,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:04:53,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516638942] [2024-11-28 05:04:53,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516638942] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:04:53,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:04:53,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 05:04:53,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268984334] [2024-11-28 05:04:53,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:04:53,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 05:04:53,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:04:53,242 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 05:04:53,242 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:04:53,242 INFO L87 Difference]: Start difference. First operand 23587 states and 42089 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, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 05:04:56,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:04:56,194 INFO L93 Difference]: Finished difference Result 75552 states and 141096 transitions. [2024-11-28 05:04:56,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 05:04:56,195 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, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2024-11-28 05:04:56,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:04:56,569 INFO L225 Difference]: With dead ends: 75552 [2024-11-28 05:04:56,569 INFO L226 Difference]: Without dead ends: 54101 [2024-11-28 05:04:56,670 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 05:04:56,671 INFO L435 NwaCegarLoop]: 4426 mSDtfsCounter, 4702 mSDsluCounter, 13285 mSDsCounter, 0 mSdLazyCounter, 925 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4716 SdHoareTripleChecker+Valid, 17711 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 05:04:56,672 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4716 Valid, 17711 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 925 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 05:04:56,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54101 states. [2024-11-28 05:05:00,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54101 to 50154. [2024-11-28 05:05:00,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50154 states, 45377 states have (on average 1.6838266081935782) internal successors, (76407), 47439 states have internal predecessors, (76407), 1941 states have call successors, (1941), 774 states have call predecessors, (1941), 2834 states have return successors, (18325), 2068 states have call predecessors, (18325), 1941 states have call successors, (18325) [2024-11-28 05:05:00,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50154 states to 50154 states and 96673 transitions. [2024-11-28 05:05:00,712 INFO L78 Accepts]: Start accepts. Automaton has 50154 states and 96673 transitions. Word has length 121 [2024-11-28 05:05:00,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:05:00,712 INFO L471 AbstractCegarLoop]: Abstraction has 50154 states and 96673 transitions. [2024-11-28 05:05:00,712 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, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 05:05:00,713 INFO L276 IsEmpty]: Start isEmpty. Operand 50154 states and 96673 transitions. [2024-11-28 05:05:00,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-28 05:05:00,734 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:05:00,734 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] [2024-11-28 05:05:00,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 05:05:00,734 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:05:00,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:05:00,735 INFO L85 PathProgramCache]: Analyzing trace with hash 812063555, now seen corresponding path program 1 times [2024-11-28 05:05:00,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:05:00,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113572342] [2024-11-28 05:05:00,735 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:05:00,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:05:00,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:05:00,910 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 05:05:00,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:05:00,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113572342] [2024-11-28 05:05:00,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113572342] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:05:00,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:05:00,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 05:05:00,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425880871] [2024-11-28 05:05:00,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:05:00,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 05:05:00,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:05:00,912 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 05:05:00,912 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:05:00,912 INFO L87 Difference]: Start difference. First operand 50154 states and 96673 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, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 05:05:06,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:05:06,989 INFO L93 Difference]: Finished difference Result 167287 states and 347998 transitions. [2024-11-28 05:05:06,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 05:05:06,989 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, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2024-11-28 05:05:06,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:05:08,012 INFO L225 Difference]: With dead ends: 167287 [2024-11-28 05:05:08,012 INFO L226 Difference]: Without dead ends: 119269 [2024-11-28 05:05:08,212 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 05:05:08,214 INFO L435 NwaCegarLoop]: 4424 mSDtfsCounter, 4799 mSDsluCounter, 13279 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4822 SdHoareTripleChecker+Valid, 17703 SdHoareTripleChecker+Invalid, 785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 05:05:08,214 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4822 Valid, 17703 Invalid, 785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 05:05:08,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119269 states. [2024-11-28 05:05:17,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119269 to 112829. [2024-11-28 05:05:17,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112829 states, 101246 states have (on average 1.7000474092803666) internal successors, (172123), 107554 states have internal predecessors, (172123), 3733 states have call successors, (3733), 1542 states have call predecessors, (3733), 7848 states have return successors, (69269), 3988 states have call predecessors, (69269), 3733 states have call successors, (69269)